xref: /openbmc/linux/drivers/gpu/drm/drm_edid.c (revision d3741027)
1 /*
2  * Copyright (c) 2006 Luc Verhaegen (quirks list)
3  * Copyright (c) 2007-2008 Intel Corporation
4  *   Jesse Barnes <jesse.barnes@intel.com>
5  * Copyright 2010 Red Hat, Inc.
6  *
7  * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
8  * FB layer.
9  *   Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
10  *
11  * Permission is hereby granted, free of charge, to any person obtaining a
12  * copy of this software and associated documentation files (the "Software"),
13  * to deal in the Software without restriction, including without limitation
14  * the rights to use, copy, modify, merge, publish, distribute, sub license,
15  * and/or sell copies of the Software, and to permit persons to whom the
16  * Software is furnished to do so, subject to the following conditions:
17  *
18  * The above copyright notice and this permission notice (including the
19  * next paragraph) shall be included in all copies or substantial portions
20  * of the Software.
21  *
22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
25  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28  * DEALINGS IN THE SOFTWARE.
29  */
30 
31 #include <linux/bitfield.h>
32 #include <linux/hdmi.h>
33 #include <linux/i2c.h>
34 #include <linux/kernel.h>
35 #include <linux/module.h>
36 #include <linux/pci.h>
37 #include <linux/slab.h>
38 #include <linux/vga_switcheroo.h>
39 
40 #include <drm/drm_displayid.h>
41 #include <drm/drm_drv.h>
42 #include <drm/drm_edid.h>
43 #include <drm/drm_encoder.h>
44 #include <drm/drm_print.h>
45 
46 #include "drm_crtc_internal.h"
47 
48 #define version_greater(edid, maj, min) \
49 	(((edid)->version > (maj)) || \
50 	 ((edid)->version == (maj) && (edid)->revision > (min)))
51 
52 static int oui(u8 first, u8 second, u8 third)
53 {
54 	return (first << 16) | (second << 8) | third;
55 }
56 
57 #define EDID_EST_TIMINGS 16
58 #define EDID_STD_TIMINGS 8
59 #define EDID_DETAILED_TIMINGS 4
60 
61 /*
62  * EDID blocks out in the wild have a variety of bugs, try to collect
63  * them here (note that userspace may work around broken monitors first,
64  * but fixes should make their way here so that the kernel "just works"
65  * on as many displays as possible).
66  */
67 
68 /* First detailed mode wrong, use largest 60Hz mode */
69 #define EDID_QUIRK_PREFER_LARGE_60		(1 << 0)
70 /* Reported 135MHz pixel clock is too high, needs adjustment */
71 #define EDID_QUIRK_135_CLOCK_TOO_HIGH		(1 << 1)
72 /* Prefer the largest mode at 75 Hz */
73 #define EDID_QUIRK_PREFER_LARGE_75		(1 << 2)
74 /* Detail timing is in cm not mm */
75 #define EDID_QUIRK_DETAILED_IN_CM		(1 << 3)
76 /* Detailed timing descriptors have bogus size values, so just take the
77  * maximum size and use that.
78  */
79 #define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE	(1 << 4)
80 /* use +hsync +vsync for detailed mode */
81 #define EDID_QUIRK_DETAILED_SYNC_PP		(1 << 6)
82 /* Force reduced-blanking timings for detailed modes */
83 #define EDID_QUIRK_FORCE_REDUCED_BLANKING	(1 << 7)
84 /* Force 8bpc */
85 #define EDID_QUIRK_FORCE_8BPC			(1 << 8)
86 /* Force 12bpc */
87 #define EDID_QUIRK_FORCE_12BPC			(1 << 9)
88 /* Force 6bpc */
89 #define EDID_QUIRK_FORCE_6BPC			(1 << 10)
90 /* Force 10bpc */
91 #define EDID_QUIRK_FORCE_10BPC			(1 << 11)
92 /* Non desktop display (i.e. HMD) */
93 #define EDID_QUIRK_NON_DESKTOP			(1 << 12)
94 
95 #define MICROSOFT_IEEE_OUI	0xca125c
96 
97 struct detailed_mode_closure {
98 	struct drm_connector *connector;
99 	const struct edid *edid;
100 	bool preferred;
101 	u32 quirks;
102 	int modes;
103 };
104 
105 #define LEVEL_DMT	0
106 #define LEVEL_GTF	1
107 #define LEVEL_GTF2	2
108 #define LEVEL_CVT	3
109 
110 #define EDID_QUIRK(vend_chr_0, vend_chr_1, vend_chr_2, product_id, _quirks) \
111 { \
112 	.panel_id = drm_edid_encode_panel_id(vend_chr_0, vend_chr_1, vend_chr_2, \
113 					     product_id), \
114 	.quirks = _quirks \
115 }
116 
117 static const struct edid_quirk {
118 	u32 panel_id;
119 	u32 quirks;
120 } edid_quirk_list[] = {
121 	/* Acer AL1706 */
122 	EDID_QUIRK('A', 'C', 'R', 44358, EDID_QUIRK_PREFER_LARGE_60),
123 	/* Acer F51 */
124 	EDID_QUIRK('A', 'P', 'I', 0x7602, EDID_QUIRK_PREFER_LARGE_60),
125 
126 	/* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
127 	EDID_QUIRK('A', 'E', 'O', 0, EDID_QUIRK_FORCE_6BPC),
128 
129 	/* BOE model on HP Pavilion 15-n233sl reports 8 bpc, but is a 6 bpc panel */
130 	EDID_QUIRK('B', 'O', 'E', 0x78b, EDID_QUIRK_FORCE_6BPC),
131 
132 	/* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */
133 	EDID_QUIRK('C', 'P', 'T', 0x17df, EDID_QUIRK_FORCE_6BPC),
134 
135 	/* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */
136 	EDID_QUIRK('S', 'D', 'C', 0x3652, EDID_QUIRK_FORCE_6BPC),
137 
138 	/* BOE model 0x0771 reports 8 bpc, but is a 6 bpc panel */
139 	EDID_QUIRK('B', 'O', 'E', 0x0771, EDID_QUIRK_FORCE_6BPC),
140 
141 	/* Belinea 10 15 55 */
142 	EDID_QUIRK('M', 'A', 'X', 1516, EDID_QUIRK_PREFER_LARGE_60),
143 	EDID_QUIRK('M', 'A', 'X', 0x77e, EDID_QUIRK_PREFER_LARGE_60),
144 
145 	/* Envision Peripherals, Inc. EN-7100e */
146 	EDID_QUIRK('E', 'P', 'I', 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH),
147 	/* Envision EN2028 */
148 	EDID_QUIRK('E', 'P', 'I', 8232, EDID_QUIRK_PREFER_LARGE_60),
149 
150 	/* Funai Electronics PM36B */
151 	EDID_QUIRK('F', 'C', 'M', 13600, EDID_QUIRK_PREFER_LARGE_75 |
152 				       EDID_QUIRK_DETAILED_IN_CM),
153 
154 	/* LGD panel of HP zBook 17 G2, eDP 10 bpc, but reports unknown bpc */
155 	EDID_QUIRK('L', 'G', 'D', 764, EDID_QUIRK_FORCE_10BPC),
156 
157 	/* LG Philips LCD LP154W01-A5 */
158 	EDID_QUIRK('L', 'P', 'L', 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE),
159 	EDID_QUIRK('L', 'P', 'L', 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE),
160 
161 	/* Samsung SyncMaster 205BW.  Note: irony */
162 	EDID_QUIRK('S', 'A', 'M', 541, EDID_QUIRK_DETAILED_SYNC_PP),
163 	/* Samsung SyncMaster 22[5-6]BW */
164 	EDID_QUIRK('S', 'A', 'M', 596, EDID_QUIRK_PREFER_LARGE_60),
165 	EDID_QUIRK('S', 'A', 'M', 638, EDID_QUIRK_PREFER_LARGE_60),
166 
167 	/* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */
168 	EDID_QUIRK('S', 'N', 'Y', 0x2541, EDID_QUIRK_FORCE_12BPC),
169 
170 	/* ViewSonic VA2026w */
171 	EDID_QUIRK('V', 'S', 'C', 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING),
172 
173 	/* Medion MD 30217 PG */
174 	EDID_QUIRK('M', 'E', 'D', 0x7b8, EDID_QUIRK_PREFER_LARGE_75),
175 
176 	/* Lenovo G50 */
177 	EDID_QUIRK('S', 'D', 'C', 18514, EDID_QUIRK_FORCE_6BPC),
178 
179 	/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
180 	EDID_QUIRK('S', 'E', 'C', 0xd033, EDID_QUIRK_FORCE_8BPC),
181 
182 	/* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
183 	EDID_QUIRK('E', 'T', 'R', 13896, EDID_QUIRK_FORCE_8BPC),
184 
185 	/* Valve Index Headset */
186 	EDID_QUIRK('V', 'L', 'V', 0x91a8, EDID_QUIRK_NON_DESKTOP),
187 	EDID_QUIRK('V', 'L', 'V', 0x91b0, EDID_QUIRK_NON_DESKTOP),
188 	EDID_QUIRK('V', 'L', 'V', 0x91b1, EDID_QUIRK_NON_DESKTOP),
189 	EDID_QUIRK('V', 'L', 'V', 0x91b2, EDID_QUIRK_NON_DESKTOP),
190 	EDID_QUIRK('V', 'L', 'V', 0x91b3, EDID_QUIRK_NON_DESKTOP),
191 	EDID_QUIRK('V', 'L', 'V', 0x91b4, EDID_QUIRK_NON_DESKTOP),
192 	EDID_QUIRK('V', 'L', 'V', 0x91b5, EDID_QUIRK_NON_DESKTOP),
193 	EDID_QUIRK('V', 'L', 'V', 0x91b6, EDID_QUIRK_NON_DESKTOP),
194 	EDID_QUIRK('V', 'L', 'V', 0x91b7, EDID_QUIRK_NON_DESKTOP),
195 	EDID_QUIRK('V', 'L', 'V', 0x91b8, EDID_QUIRK_NON_DESKTOP),
196 	EDID_QUIRK('V', 'L', 'V', 0x91b9, EDID_QUIRK_NON_DESKTOP),
197 	EDID_QUIRK('V', 'L', 'V', 0x91ba, EDID_QUIRK_NON_DESKTOP),
198 	EDID_QUIRK('V', 'L', 'V', 0x91bb, EDID_QUIRK_NON_DESKTOP),
199 	EDID_QUIRK('V', 'L', 'V', 0x91bc, EDID_QUIRK_NON_DESKTOP),
200 	EDID_QUIRK('V', 'L', 'V', 0x91bd, EDID_QUIRK_NON_DESKTOP),
201 	EDID_QUIRK('V', 'L', 'V', 0x91be, EDID_QUIRK_NON_DESKTOP),
202 	EDID_QUIRK('V', 'L', 'V', 0x91bf, EDID_QUIRK_NON_DESKTOP),
203 
204 	/* HTC Vive and Vive Pro VR Headsets */
205 	EDID_QUIRK('H', 'V', 'R', 0xaa01, EDID_QUIRK_NON_DESKTOP),
206 	EDID_QUIRK('H', 'V', 'R', 0xaa02, EDID_QUIRK_NON_DESKTOP),
207 
208 	/* Oculus Rift DK1, DK2, CV1 and Rift S VR Headsets */
209 	EDID_QUIRK('O', 'V', 'R', 0x0001, EDID_QUIRK_NON_DESKTOP),
210 	EDID_QUIRK('O', 'V', 'R', 0x0003, EDID_QUIRK_NON_DESKTOP),
211 	EDID_QUIRK('O', 'V', 'R', 0x0004, EDID_QUIRK_NON_DESKTOP),
212 	EDID_QUIRK('O', 'V', 'R', 0x0012, EDID_QUIRK_NON_DESKTOP),
213 
214 	/* Windows Mixed Reality Headsets */
215 	EDID_QUIRK('A', 'C', 'R', 0x7fce, EDID_QUIRK_NON_DESKTOP),
216 	EDID_QUIRK('L', 'E', 'N', 0x0408, EDID_QUIRK_NON_DESKTOP),
217 	EDID_QUIRK('F', 'U', 'J', 0x1970, EDID_QUIRK_NON_DESKTOP),
218 	EDID_QUIRK('D', 'E', 'L', 0x7fce, EDID_QUIRK_NON_DESKTOP),
219 	EDID_QUIRK('S', 'E', 'C', 0x144a, EDID_QUIRK_NON_DESKTOP),
220 	EDID_QUIRK('A', 'U', 'S', 0xc102, EDID_QUIRK_NON_DESKTOP),
221 
222 	/* Sony PlayStation VR Headset */
223 	EDID_QUIRK('S', 'N', 'Y', 0x0704, EDID_QUIRK_NON_DESKTOP),
224 
225 	/* Sensics VR Headsets */
226 	EDID_QUIRK('S', 'E', 'N', 0x1019, EDID_QUIRK_NON_DESKTOP),
227 
228 	/* OSVR HDK and HDK2 VR Headsets */
229 	EDID_QUIRK('S', 'V', 'R', 0x1019, EDID_QUIRK_NON_DESKTOP),
230 };
231 
232 /*
233  * Autogenerated from the DMT spec.
234  * This table is copied from xfree86/modes/xf86EdidModes.c.
235  */
236 static const struct drm_display_mode drm_dmt_modes[] = {
237 	/* 0x01 - 640x350@85Hz */
238 	{ DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
239 		   736, 832, 0, 350, 382, 385, 445, 0,
240 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
241 	/* 0x02 - 640x400@85Hz */
242 	{ DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
243 		   736, 832, 0, 400, 401, 404, 445, 0,
244 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
245 	/* 0x03 - 720x400@85Hz */
246 	{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
247 		   828, 936, 0, 400, 401, 404, 446, 0,
248 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
249 	/* 0x04 - 640x480@60Hz */
250 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
251 		   752, 800, 0, 480, 490, 492, 525, 0,
252 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
253 	/* 0x05 - 640x480@72Hz */
254 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
255 		   704, 832, 0, 480, 489, 492, 520, 0,
256 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
257 	/* 0x06 - 640x480@75Hz */
258 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
259 		   720, 840, 0, 480, 481, 484, 500, 0,
260 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
261 	/* 0x07 - 640x480@85Hz */
262 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
263 		   752, 832, 0, 480, 481, 484, 509, 0,
264 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
265 	/* 0x08 - 800x600@56Hz */
266 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
267 		   896, 1024, 0, 600, 601, 603, 625, 0,
268 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
269 	/* 0x09 - 800x600@60Hz */
270 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
271 		   968, 1056, 0, 600, 601, 605, 628, 0,
272 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
273 	/* 0x0a - 800x600@72Hz */
274 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
275 		   976, 1040, 0, 600, 637, 643, 666, 0,
276 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
277 	/* 0x0b - 800x600@75Hz */
278 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
279 		   896, 1056, 0, 600, 601, 604, 625, 0,
280 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
281 	/* 0x0c - 800x600@85Hz */
282 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
283 		   896, 1048, 0, 600, 601, 604, 631, 0,
284 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
285 	/* 0x0d - 800x600@120Hz RB */
286 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 73250, 800, 848,
287 		   880, 960, 0, 600, 603, 607, 636, 0,
288 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
289 	/* 0x0e - 848x480@60Hz */
290 	{ DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
291 		   976, 1088, 0, 480, 486, 494, 517, 0,
292 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
293 	/* 0x0f - 1024x768@43Hz, interlace */
294 	{ DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
295 		   1208, 1264, 0, 768, 768, 776, 817, 0,
296 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
297 		   DRM_MODE_FLAG_INTERLACE) },
298 	/* 0x10 - 1024x768@60Hz */
299 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
300 		   1184, 1344, 0, 768, 771, 777, 806, 0,
301 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
302 	/* 0x11 - 1024x768@70Hz */
303 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
304 		   1184, 1328, 0, 768, 771, 777, 806, 0,
305 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
306 	/* 0x12 - 1024x768@75Hz */
307 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
308 		   1136, 1312, 0, 768, 769, 772, 800, 0,
309 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
310 	/* 0x13 - 1024x768@85Hz */
311 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
312 		   1168, 1376, 0, 768, 769, 772, 808, 0,
313 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
314 	/* 0x14 - 1024x768@120Hz RB */
315 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 115500, 1024, 1072,
316 		   1104, 1184, 0, 768, 771, 775, 813, 0,
317 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
318 	/* 0x15 - 1152x864@75Hz */
319 	{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
320 		   1344, 1600, 0, 864, 865, 868, 900, 0,
321 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
322 	/* 0x55 - 1280x720@60Hz */
323 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
324 		   1430, 1650, 0, 720, 725, 730, 750, 0,
325 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
326 	/* 0x16 - 1280x768@60Hz RB */
327 	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 68250, 1280, 1328,
328 		   1360, 1440, 0, 768, 771, 778, 790, 0,
329 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
330 	/* 0x17 - 1280x768@60Hz */
331 	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
332 		   1472, 1664, 0, 768, 771, 778, 798, 0,
333 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
334 	/* 0x18 - 1280x768@75Hz */
335 	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
336 		   1488, 1696, 0, 768, 771, 778, 805, 0,
337 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
338 	/* 0x19 - 1280x768@85Hz */
339 	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
340 		   1496, 1712, 0, 768, 771, 778, 809, 0,
341 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
342 	/* 0x1a - 1280x768@120Hz RB */
343 	{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 140250, 1280, 1328,
344 		   1360, 1440, 0, 768, 771, 778, 813, 0,
345 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
346 	/* 0x1b - 1280x800@60Hz RB */
347 	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 71000, 1280, 1328,
348 		   1360, 1440, 0, 800, 803, 809, 823, 0,
349 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
350 	/* 0x1c - 1280x800@60Hz */
351 	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
352 		   1480, 1680, 0, 800, 803, 809, 831, 0,
353 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
354 	/* 0x1d - 1280x800@75Hz */
355 	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
356 		   1488, 1696, 0, 800, 803, 809, 838, 0,
357 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
358 	/* 0x1e - 1280x800@85Hz */
359 	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
360 		   1496, 1712, 0, 800, 803, 809, 843, 0,
361 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
362 	/* 0x1f - 1280x800@120Hz RB */
363 	{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 146250, 1280, 1328,
364 		   1360, 1440, 0, 800, 803, 809, 847, 0,
365 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
366 	/* 0x20 - 1280x960@60Hz */
367 	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
368 		   1488, 1800, 0, 960, 961, 964, 1000, 0,
369 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
370 	/* 0x21 - 1280x960@85Hz */
371 	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
372 		   1504, 1728, 0, 960, 961, 964, 1011, 0,
373 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
374 	/* 0x22 - 1280x960@120Hz RB */
375 	{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 175500, 1280, 1328,
376 		   1360, 1440, 0, 960, 963, 967, 1017, 0,
377 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
378 	/* 0x23 - 1280x1024@60Hz */
379 	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
380 		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
381 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
382 	/* 0x24 - 1280x1024@75Hz */
383 	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
384 		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
385 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
386 	/* 0x25 - 1280x1024@85Hz */
387 	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
388 		   1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
389 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
390 	/* 0x26 - 1280x1024@120Hz RB */
391 	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 187250, 1280, 1328,
392 		   1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
393 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
394 	/* 0x27 - 1360x768@60Hz */
395 	{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
396 		   1536, 1792, 0, 768, 771, 777, 795, 0,
397 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
398 	/* 0x28 - 1360x768@120Hz RB */
399 	{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 148250, 1360, 1408,
400 		   1440, 1520, 0, 768, 771, 776, 813, 0,
401 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
402 	/* 0x51 - 1366x768@60Hz */
403 	{ DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 85500, 1366, 1436,
404 		   1579, 1792, 0, 768, 771, 774, 798, 0,
405 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
406 	/* 0x56 - 1366x768@60Hz */
407 	{ DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 72000, 1366, 1380,
408 		   1436, 1500, 0, 768, 769, 772, 800, 0,
409 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
410 	/* 0x29 - 1400x1050@60Hz RB */
411 	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 101000, 1400, 1448,
412 		   1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
413 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
414 	/* 0x2a - 1400x1050@60Hz */
415 	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
416 		   1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
417 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
418 	/* 0x2b - 1400x1050@75Hz */
419 	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
420 		   1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
421 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
422 	/* 0x2c - 1400x1050@85Hz */
423 	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
424 		   1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
425 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
426 	/* 0x2d - 1400x1050@120Hz RB */
427 	{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 208000, 1400, 1448,
428 		   1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
429 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
430 	/* 0x2e - 1440x900@60Hz RB */
431 	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 88750, 1440, 1488,
432 		   1520, 1600, 0, 900, 903, 909, 926, 0,
433 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
434 	/* 0x2f - 1440x900@60Hz */
435 	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
436 		   1672, 1904, 0, 900, 903, 909, 934, 0,
437 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
438 	/* 0x30 - 1440x900@75Hz */
439 	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
440 		   1688, 1936, 0, 900, 903, 909, 942, 0,
441 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
442 	/* 0x31 - 1440x900@85Hz */
443 	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
444 		   1696, 1952, 0, 900, 903, 909, 948, 0,
445 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
446 	/* 0x32 - 1440x900@120Hz RB */
447 	{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 182750, 1440, 1488,
448 		   1520, 1600, 0, 900, 903, 909, 953, 0,
449 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
450 	/* 0x53 - 1600x900@60Hz */
451 	{ DRM_MODE("1600x900", DRM_MODE_TYPE_DRIVER, 108000, 1600, 1624,
452 		   1704, 1800, 0, 900, 901, 904, 1000, 0,
453 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
454 	/* 0x33 - 1600x1200@60Hz */
455 	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
456 		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
457 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
458 	/* 0x34 - 1600x1200@65Hz */
459 	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
460 		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
461 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
462 	/* 0x35 - 1600x1200@70Hz */
463 	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
464 		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
465 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
466 	/* 0x36 - 1600x1200@75Hz */
467 	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
468 		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
469 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
470 	/* 0x37 - 1600x1200@85Hz */
471 	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
472 		   1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
473 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
474 	/* 0x38 - 1600x1200@120Hz RB */
475 	{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 268250, 1600, 1648,
476 		   1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
477 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
478 	/* 0x39 - 1680x1050@60Hz RB */
479 	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 119000, 1680, 1728,
480 		   1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
481 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
482 	/* 0x3a - 1680x1050@60Hz */
483 	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
484 		   1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
485 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
486 	/* 0x3b - 1680x1050@75Hz */
487 	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
488 		   1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
489 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
490 	/* 0x3c - 1680x1050@85Hz */
491 	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
492 		   1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
493 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
494 	/* 0x3d - 1680x1050@120Hz RB */
495 	{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 245500, 1680, 1728,
496 		   1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
497 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
498 	/* 0x3e - 1792x1344@60Hz */
499 	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
500 		   2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
501 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
502 	/* 0x3f - 1792x1344@75Hz */
503 	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
504 		   2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
505 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
506 	/* 0x40 - 1792x1344@120Hz RB */
507 	{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 333250, 1792, 1840,
508 		   1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
509 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
510 	/* 0x41 - 1856x1392@60Hz */
511 	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
512 		   2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
513 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
514 	/* 0x42 - 1856x1392@75Hz */
515 	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
516 		   2208, 2560, 0, 1392, 1393, 1396, 1500, 0,
517 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
518 	/* 0x43 - 1856x1392@120Hz RB */
519 	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
520 		   1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
521 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
522 	/* 0x52 - 1920x1080@60Hz */
523 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
524 		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
525 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
526 	/* 0x44 - 1920x1200@60Hz RB */
527 	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 154000, 1920, 1968,
528 		   2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
529 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
530 	/* 0x45 - 1920x1200@60Hz */
531 	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
532 		   2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
533 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
534 	/* 0x46 - 1920x1200@75Hz */
535 	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
536 		   2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
537 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
538 	/* 0x47 - 1920x1200@85Hz */
539 	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
540 		   2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
541 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
542 	/* 0x48 - 1920x1200@120Hz RB */
543 	{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 317000, 1920, 1968,
544 		   2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
545 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
546 	/* 0x49 - 1920x1440@60Hz */
547 	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
548 		   2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
549 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
550 	/* 0x4a - 1920x1440@75Hz */
551 	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
552 		   2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
553 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
554 	/* 0x4b - 1920x1440@120Hz RB */
555 	{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 380500, 1920, 1968,
556 		   2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
557 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
558 	/* 0x54 - 2048x1152@60Hz */
559 	{ DRM_MODE("2048x1152", DRM_MODE_TYPE_DRIVER, 162000, 2048, 2074,
560 		   2154, 2250, 0, 1152, 1153, 1156, 1200, 0,
561 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
562 	/* 0x4c - 2560x1600@60Hz RB */
563 	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 268500, 2560, 2608,
564 		   2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
565 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
566 	/* 0x4d - 2560x1600@60Hz */
567 	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
568 		   3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
569 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
570 	/* 0x4e - 2560x1600@75Hz */
571 	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
572 		   3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
573 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
574 	/* 0x4f - 2560x1600@85Hz */
575 	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
576 		   3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
577 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
578 	/* 0x50 - 2560x1600@120Hz RB */
579 	{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 552750, 2560, 2608,
580 		   2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
581 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
582 	/* 0x57 - 4096x2160@60Hz RB */
583 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556744, 4096, 4104,
584 		   4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
585 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
586 	/* 0x58 - 4096x2160@59.94Hz RB */
587 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556188, 4096, 4104,
588 		   4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
589 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
590 };
591 
592 /*
593  * These more or less come from the DMT spec.  The 720x400 modes are
594  * inferred from historical 80x25 practice.  The 640x480@67 and 832x624@75
595  * modes are old-school Mac modes.  The EDID spec says the 1152x864@75 mode
596  * should be 1152x870, again for the Mac, but instead we use the x864 DMT
597  * mode.
598  *
599  * The DMT modes have been fact-checked; the rest are mild guesses.
600  */
601 static const struct drm_display_mode edid_est_modes[] = {
602 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
603 		   968, 1056, 0, 600, 601, 605, 628, 0,
604 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
605 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
606 		   896, 1024, 0, 600, 601, 603,  625, 0,
607 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
608 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
609 		   720, 840, 0, 480, 481, 484, 500, 0,
610 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
611 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
612 		   704,  832, 0, 480, 489, 492, 520, 0,
613 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
614 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
615 		   768,  864, 0, 480, 483, 486, 525, 0,
616 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
617 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
618 		   752, 800, 0, 480, 490, 492, 525, 0,
619 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
620 	{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
621 		   846, 900, 0, 400, 421, 423,  449, 0,
622 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
623 	{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
624 		   846,  900, 0, 400, 412, 414, 449, 0,
625 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
626 	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
627 		   1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
628 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
629 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
630 		   1136, 1312, 0,  768, 769, 772, 800, 0,
631 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
632 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
633 		   1184, 1328, 0,  768, 771, 777, 806, 0,
634 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
635 	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
636 		   1184, 1344, 0,  768, 771, 777, 806, 0,
637 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
638 	{ DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
639 		   1208, 1264, 0, 768, 768, 776, 817, 0,
640 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
641 	{ DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
642 		   928, 1152, 0, 624, 625, 628, 667, 0,
643 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
644 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
645 		   896, 1056, 0, 600, 601, 604,  625, 0,
646 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
647 	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
648 		   976, 1040, 0, 600, 637, 643, 666, 0,
649 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
650 	{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
651 		   1344, 1600, 0,  864, 865, 868, 900, 0,
652 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
653 };
654 
655 struct minimode {
656 	short w;
657 	short h;
658 	short r;
659 	short rb;
660 };
661 
662 static const struct minimode est3_modes[] = {
663 	/* byte 6 */
664 	{ 640, 350, 85, 0 },
665 	{ 640, 400, 85, 0 },
666 	{ 720, 400, 85, 0 },
667 	{ 640, 480, 85, 0 },
668 	{ 848, 480, 60, 0 },
669 	{ 800, 600, 85, 0 },
670 	{ 1024, 768, 85, 0 },
671 	{ 1152, 864, 75, 0 },
672 	/* byte 7 */
673 	{ 1280, 768, 60, 1 },
674 	{ 1280, 768, 60, 0 },
675 	{ 1280, 768, 75, 0 },
676 	{ 1280, 768, 85, 0 },
677 	{ 1280, 960, 60, 0 },
678 	{ 1280, 960, 85, 0 },
679 	{ 1280, 1024, 60, 0 },
680 	{ 1280, 1024, 85, 0 },
681 	/* byte 8 */
682 	{ 1360, 768, 60, 0 },
683 	{ 1440, 900, 60, 1 },
684 	{ 1440, 900, 60, 0 },
685 	{ 1440, 900, 75, 0 },
686 	{ 1440, 900, 85, 0 },
687 	{ 1400, 1050, 60, 1 },
688 	{ 1400, 1050, 60, 0 },
689 	{ 1400, 1050, 75, 0 },
690 	/* byte 9 */
691 	{ 1400, 1050, 85, 0 },
692 	{ 1680, 1050, 60, 1 },
693 	{ 1680, 1050, 60, 0 },
694 	{ 1680, 1050, 75, 0 },
695 	{ 1680, 1050, 85, 0 },
696 	{ 1600, 1200, 60, 0 },
697 	{ 1600, 1200, 65, 0 },
698 	{ 1600, 1200, 70, 0 },
699 	/* byte 10 */
700 	{ 1600, 1200, 75, 0 },
701 	{ 1600, 1200, 85, 0 },
702 	{ 1792, 1344, 60, 0 },
703 	{ 1792, 1344, 75, 0 },
704 	{ 1856, 1392, 60, 0 },
705 	{ 1856, 1392, 75, 0 },
706 	{ 1920, 1200, 60, 1 },
707 	{ 1920, 1200, 60, 0 },
708 	/* byte 11 */
709 	{ 1920, 1200, 75, 0 },
710 	{ 1920, 1200, 85, 0 },
711 	{ 1920, 1440, 60, 0 },
712 	{ 1920, 1440, 75, 0 },
713 };
714 
715 static const struct minimode extra_modes[] = {
716 	{ 1024, 576,  60, 0 },
717 	{ 1366, 768,  60, 0 },
718 	{ 1600, 900,  60, 0 },
719 	{ 1680, 945,  60, 0 },
720 	{ 1920, 1080, 60, 0 },
721 	{ 2048, 1152, 60, 0 },
722 	{ 2048, 1536, 60, 0 },
723 };
724 
725 /*
726  * From CEA/CTA-861 spec.
727  *
728  * Do not access directly, instead always use cea_mode_for_vic().
729  */
730 static const struct drm_display_mode edid_cea_modes_1[] = {
731 	/* 1 - 640x480@60Hz 4:3 */
732 	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
733 		   752, 800, 0, 480, 490, 492, 525, 0,
734 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
735 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
736 	/* 2 - 720x480@60Hz 4:3 */
737 	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
738 		   798, 858, 0, 480, 489, 495, 525, 0,
739 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
740 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
741 	/* 3 - 720x480@60Hz 16:9 */
742 	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
743 		   798, 858, 0, 480, 489, 495, 525, 0,
744 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
745 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
746 	/* 4 - 1280x720@60Hz 16:9 */
747 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
748 		   1430, 1650, 0, 720, 725, 730, 750, 0,
749 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
750 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
751 	/* 5 - 1920x1080i@60Hz 16:9 */
752 	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
753 		   2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
754 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
755 		   DRM_MODE_FLAG_INTERLACE),
756 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
757 	/* 6 - 720(1440)x480i@60Hz 4:3 */
758 	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
759 		   801, 858, 0, 480, 488, 494, 525, 0,
760 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
761 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
762 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
763 	/* 7 - 720(1440)x480i@60Hz 16:9 */
764 	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
765 		   801, 858, 0, 480, 488, 494, 525, 0,
766 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
767 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
768 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
769 	/* 8 - 720(1440)x240@60Hz 4:3 */
770 	{ DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
771 		   801, 858, 0, 240, 244, 247, 262, 0,
772 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
773 		   DRM_MODE_FLAG_DBLCLK),
774 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
775 	/* 9 - 720(1440)x240@60Hz 16:9 */
776 	{ DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
777 		   801, 858, 0, 240, 244, 247, 262, 0,
778 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
779 		   DRM_MODE_FLAG_DBLCLK),
780 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
781 	/* 10 - 2880x480i@60Hz 4:3 */
782 	{ DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
783 		   3204, 3432, 0, 480, 488, 494, 525, 0,
784 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
785 		   DRM_MODE_FLAG_INTERLACE),
786 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
787 	/* 11 - 2880x480i@60Hz 16:9 */
788 	{ DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
789 		   3204, 3432, 0, 480, 488, 494, 525, 0,
790 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
791 		   DRM_MODE_FLAG_INTERLACE),
792 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
793 	/* 12 - 2880x240@60Hz 4:3 */
794 	{ DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
795 		   3204, 3432, 0, 240, 244, 247, 262, 0,
796 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
797 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
798 	/* 13 - 2880x240@60Hz 16:9 */
799 	{ DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
800 		   3204, 3432, 0, 240, 244, 247, 262, 0,
801 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
802 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
803 	/* 14 - 1440x480@60Hz 4:3 */
804 	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
805 		   1596, 1716, 0, 480, 489, 495, 525, 0,
806 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
807 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
808 	/* 15 - 1440x480@60Hz 16:9 */
809 	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
810 		   1596, 1716, 0, 480, 489, 495, 525, 0,
811 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
812 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
813 	/* 16 - 1920x1080@60Hz 16:9 */
814 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
815 		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
816 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
817 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
818 	/* 17 - 720x576@50Hz 4:3 */
819 	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
820 		   796, 864, 0, 576, 581, 586, 625, 0,
821 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
822 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
823 	/* 18 - 720x576@50Hz 16:9 */
824 	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
825 		   796, 864, 0, 576, 581, 586, 625, 0,
826 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
827 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
828 	/* 19 - 1280x720@50Hz 16:9 */
829 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
830 		   1760, 1980, 0, 720, 725, 730, 750, 0,
831 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
832 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
833 	/* 20 - 1920x1080i@50Hz 16:9 */
834 	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
835 		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
836 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
837 		   DRM_MODE_FLAG_INTERLACE),
838 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
839 	/* 21 - 720(1440)x576i@50Hz 4:3 */
840 	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
841 		   795, 864, 0, 576, 580, 586, 625, 0,
842 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
843 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
844 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
845 	/* 22 - 720(1440)x576i@50Hz 16:9 */
846 	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
847 		   795, 864, 0, 576, 580, 586, 625, 0,
848 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
849 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
850 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
851 	/* 23 - 720(1440)x288@50Hz 4:3 */
852 	{ DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
853 		   795, 864, 0, 288, 290, 293, 312, 0,
854 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
855 		   DRM_MODE_FLAG_DBLCLK),
856 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
857 	/* 24 - 720(1440)x288@50Hz 16:9 */
858 	{ DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
859 		   795, 864, 0, 288, 290, 293, 312, 0,
860 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
861 		   DRM_MODE_FLAG_DBLCLK),
862 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
863 	/* 25 - 2880x576i@50Hz 4:3 */
864 	{ DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
865 		   3180, 3456, 0, 576, 580, 586, 625, 0,
866 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
867 		   DRM_MODE_FLAG_INTERLACE),
868 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
869 	/* 26 - 2880x576i@50Hz 16:9 */
870 	{ DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
871 		   3180, 3456, 0, 576, 580, 586, 625, 0,
872 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
873 		   DRM_MODE_FLAG_INTERLACE),
874 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
875 	/* 27 - 2880x288@50Hz 4:3 */
876 	{ DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
877 		   3180, 3456, 0, 288, 290, 293, 312, 0,
878 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
879 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
880 	/* 28 - 2880x288@50Hz 16:9 */
881 	{ DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
882 		   3180, 3456, 0, 288, 290, 293, 312, 0,
883 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
884 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
885 	/* 29 - 1440x576@50Hz 4:3 */
886 	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
887 		   1592, 1728, 0, 576, 581, 586, 625, 0,
888 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
889 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
890 	/* 30 - 1440x576@50Hz 16:9 */
891 	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
892 		   1592, 1728, 0, 576, 581, 586, 625, 0,
893 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
894 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
895 	/* 31 - 1920x1080@50Hz 16:9 */
896 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
897 		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
898 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
899 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
900 	/* 32 - 1920x1080@24Hz 16:9 */
901 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
902 		   2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
903 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
904 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
905 	/* 33 - 1920x1080@25Hz 16:9 */
906 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
907 		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
908 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
909 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
910 	/* 34 - 1920x1080@30Hz 16:9 */
911 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
912 		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
913 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
914 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
915 	/* 35 - 2880x480@60Hz 4:3 */
916 	{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
917 		   3192, 3432, 0, 480, 489, 495, 525, 0,
918 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
919 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
920 	/* 36 - 2880x480@60Hz 16:9 */
921 	{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
922 		   3192, 3432, 0, 480, 489, 495, 525, 0,
923 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
924 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
925 	/* 37 - 2880x576@50Hz 4:3 */
926 	{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
927 		   3184, 3456, 0, 576, 581, 586, 625, 0,
928 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
929 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
930 	/* 38 - 2880x576@50Hz 16:9 */
931 	{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
932 		   3184, 3456, 0, 576, 581, 586, 625, 0,
933 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
934 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
935 	/* 39 - 1920x1080i@50Hz 16:9 */
936 	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
937 		   2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
938 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
939 		   DRM_MODE_FLAG_INTERLACE),
940 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
941 	/* 40 - 1920x1080i@100Hz 16:9 */
942 	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
943 		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
944 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
945 		   DRM_MODE_FLAG_INTERLACE),
946 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
947 	/* 41 - 1280x720@100Hz 16:9 */
948 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
949 		   1760, 1980, 0, 720, 725, 730, 750, 0,
950 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
951 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
952 	/* 42 - 720x576@100Hz 4:3 */
953 	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
954 		   796, 864, 0, 576, 581, 586, 625, 0,
955 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
956 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
957 	/* 43 - 720x576@100Hz 16:9 */
958 	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
959 		   796, 864, 0, 576, 581, 586, 625, 0,
960 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
961 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
962 	/* 44 - 720(1440)x576i@100Hz 4:3 */
963 	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
964 		   795, 864, 0, 576, 580, 586, 625, 0,
965 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
966 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
967 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
968 	/* 45 - 720(1440)x576i@100Hz 16:9 */
969 	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
970 		   795, 864, 0, 576, 580, 586, 625, 0,
971 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
972 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
973 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
974 	/* 46 - 1920x1080i@120Hz 16:9 */
975 	{ DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
976 		   2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
977 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
978 		   DRM_MODE_FLAG_INTERLACE),
979 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
980 	/* 47 - 1280x720@120Hz 16:9 */
981 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
982 		   1430, 1650, 0, 720, 725, 730, 750, 0,
983 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
984 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
985 	/* 48 - 720x480@120Hz 4:3 */
986 	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
987 		   798, 858, 0, 480, 489, 495, 525, 0,
988 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
989 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
990 	/* 49 - 720x480@120Hz 16:9 */
991 	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
992 		   798, 858, 0, 480, 489, 495, 525, 0,
993 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
994 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
995 	/* 50 - 720(1440)x480i@120Hz 4:3 */
996 	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
997 		   801, 858, 0, 480, 488, 494, 525, 0,
998 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
999 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1000 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1001 	/* 51 - 720(1440)x480i@120Hz 16:9 */
1002 	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
1003 		   801, 858, 0, 480, 488, 494, 525, 0,
1004 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1005 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1006 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1007 	/* 52 - 720x576@200Hz 4:3 */
1008 	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
1009 		   796, 864, 0, 576, 581, 586, 625, 0,
1010 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1011 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1012 	/* 53 - 720x576@200Hz 16:9 */
1013 	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
1014 		   796, 864, 0, 576, 581, 586, 625, 0,
1015 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1016 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1017 	/* 54 - 720(1440)x576i@200Hz 4:3 */
1018 	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
1019 		   795, 864, 0, 576, 580, 586, 625, 0,
1020 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1021 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1022 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1023 	/* 55 - 720(1440)x576i@200Hz 16:9 */
1024 	{ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
1025 		   795, 864, 0, 576, 580, 586, 625, 0,
1026 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1027 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1028 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1029 	/* 56 - 720x480@240Hz 4:3 */
1030 	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
1031 		   798, 858, 0, 480, 489, 495, 525, 0,
1032 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1033 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1034 	/* 57 - 720x480@240Hz 16:9 */
1035 	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
1036 		   798, 858, 0, 480, 489, 495, 525, 0,
1037 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1038 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1039 	/* 58 - 720(1440)x480i@240Hz 4:3 */
1040 	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
1041 		   801, 858, 0, 480, 488, 494, 525, 0,
1042 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1043 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1044 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1045 	/* 59 - 720(1440)x480i@240Hz 16:9 */
1046 	{ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
1047 		   801, 858, 0, 480, 488, 494, 525, 0,
1048 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1049 		   DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1050 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1051 	/* 60 - 1280x720@24Hz 16:9 */
1052 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
1053 		   3080, 3300, 0, 720, 725, 730, 750, 0,
1054 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1055 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1056 	/* 61 - 1280x720@25Hz 16:9 */
1057 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
1058 		   3740, 3960, 0, 720, 725, 730, 750, 0,
1059 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1060 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1061 	/* 62 - 1280x720@30Hz 16:9 */
1062 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
1063 		   3080, 3300, 0, 720, 725, 730, 750, 0,
1064 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1065 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1066 	/* 63 - 1920x1080@120Hz 16:9 */
1067 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
1068 		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1069 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1070 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1071 	/* 64 - 1920x1080@100Hz 16:9 */
1072 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
1073 		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1074 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1075 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1076 	/* 65 - 1280x720@24Hz 64:27 */
1077 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
1078 		   3080, 3300, 0, 720, 725, 730, 750, 0,
1079 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1080 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1081 	/* 66 - 1280x720@25Hz 64:27 */
1082 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
1083 		   3740, 3960, 0, 720, 725, 730, 750, 0,
1084 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1085 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1086 	/* 67 - 1280x720@30Hz 64:27 */
1087 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
1088 		   3080, 3300, 0, 720, 725, 730, 750, 0,
1089 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1090 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1091 	/* 68 - 1280x720@50Hz 64:27 */
1092 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
1093 		   1760, 1980, 0, 720, 725, 730, 750, 0,
1094 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1095 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1096 	/* 69 - 1280x720@60Hz 64:27 */
1097 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
1098 		   1430, 1650, 0, 720, 725, 730, 750, 0,
1099 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1100 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1101 	/* 70 - 1280x720@100Hz 64:27 */
1102 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
1103 		   1760, 1980, 0, 720, 725, 730, 750, 0,
1104 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1105 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1106 	/* 71 - 1280x720@120Hz 64:27 */
1107 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
1108 		   1430, 1650, 0, 720, 725, 730, 750, 0,
1109 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1110 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1111 	/* 72 - 1920x1080@24Hz 64:27 */
1112 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
1113 		   2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1114 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1115 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1116 	/* 73 - 1920x1080@25Hz 64:27 */
1117 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
1118 		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1119 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1120 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1121 	/* 74 - 1920x1080@30Hz 64:27 */
1122 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
1123 		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1124 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1125 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1126 	/* 75 - 1920x1080@50Hz 64:27 */
1127 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
1128 		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1129 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1130 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1131 	/* 76 - 1920x1080@60Hz 64:27 */
1132 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
1133 		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1134 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1135 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1136 	/* 77 - 1920x1080@100Hz 64:27 */
1137 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
1138 		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1139 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1140 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1141 	/* 78 - 1920x1080@120Hz 64:27 */
1142 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
1143 		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1144 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1145 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1146 	/* 79 - 1680x720@24Hz 64:27 */
1147 	{ DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 3040,
1148 		   3080, 3300, 0, 720, 725, 730, 750, 0,
1149 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1150 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1151 	/* 80 - 1680x720@25Hz 64:27 */
1152 	{ DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 2908,
1153 		   2948, 3168, 0, 720, 725, 730, 750, 0,
1154 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1155 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1156 	/* 81 - 1680x720@30Hz 64:27 */
1157 	{ DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 2380,
1158 		   2420, 2640, 0, 720, 725, 730, 750, 0,
1159 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1160 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1161 	/* 82 - 1680x720@50Hz 64:27 */
1162 	{ DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 82500, 1680, 1940,
1163 		   1980, 2200, 0, 720, 725, 730, 750, 0,
1164 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1165 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1166 	/* 83 - 1680x720@60Hz 64:27 */
1167 	{ DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 99000, 1680, 1940,
1168 		   1980, 2200, 0, 720, 725, 730, 750, 0,
1169 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1170 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1171 	/* 84 - 1680x720@100Hz 64:27 */
1172 	{ DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 165000, 1680, 1740,
1173 		   1780, 2000, 0, 720, 725, 730, 825, 0,
1174 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1175 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1176 	/* 85 - 1680x720@120Hz 64:27 */
1177 	{ DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 198000, 1680, 1740,
1178 		   1780, 2000, 0, 720, 725, 730, 825, 0,
1179 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1180 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1181 	/* 86 - 2560x1080@24Hz 64:27 */
1182 	{ DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 99000, 2560, 3558,
1183 		   3602, 3750, 0, 1080, 1084, 1089, 1100, 0,
1184 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1185 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1186 	/* 87 - 2560x1080@25Hz 64:27 */
1187 	{ DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 90000, 2560, 3008,
1188 		   3052, 3200, 0, 1080, 1084, 1089, 1125, 0,
1189 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1190 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1191 	/* 88 - 2560x1080@30Hz 64:27 */
1192 	{ DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 118800, 2560, 3328,
1193 		   3372, 3520, 0, 1080, 1084, 1089, 1125, 0,
1194 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1195 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1196 	/* 89 - 2560x1080@50Hz 64:27 */
1197 	{ DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 185625, 2560, 3108,
1198 		   3152, 3300, 0, 1080, 1084, 1089, 1125, 0,
1199 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1200 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1201 	/* 90 - 2560x1080@60Hz 64:27 */
1202 	{ DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 198000, 2560, 2808,
1203 		   2852, 3000, 0, 1080, 1084, 1089, 1100, 0,
1204 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1205 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1206 	/* 91 - 2560x1080@100Hz 64:27 */
1207 	{ DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 371250, 2560, 2778,
1208 		   2822, 2970, 0, 1080, 1084, 1089, 1250, 0,
1209 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1210 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1211 	/* 92 - 2560x1080@120Hz 64:27 */
1212 	{ DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 495000, 2560, 3108,
1213 		   3152, 3300, 0, 1080, 1084, 1089, 1250, 0,
1214 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1215 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1216 	/* 93 - 3840x2160@24Hz 16:9 */
1217 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 5116,
1218 		   5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1219 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1220 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1221 	/* 94 - 3840x2160@25Hz 16:9 */
1222 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
1223 		   4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1224 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1225 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1226 	/* 95 - 3840x2160@30Hz 16:9 */
1227 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
1228 		   4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1229 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1230 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1231 	/* 96 - 3840x2160@50Hz 16:9 */
1232 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4896,
1233 		   4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1234 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1235 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1236 	/* 97 - 3840x2160@60Hz 16:9 */
1237 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4016,
1238 		   4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1239 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1240 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1241 	/* 98 - 4096x2160@24Hz 256:135 */
1242 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 5116,
1243 		   5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1244 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1245 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1246 	/* 99 - 4096x2160@25Hz 256:135 */
1247 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 5064,
1248 		   5152, 5280, 0, 2160, 2168, 2178, 2250, 0,
1249 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1250 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1251 	/* 100 - 4096x2160@30Hz 256:135 */
1252 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 4184,
1253 		   4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1254 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1255 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1256 	/* 101 - 4096x2160@50Hz 256:135 */
1257 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 5064,
1258 		   5152, 5280, 0, 2160, 2168, 2178, 2250, 0,
1259 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1260 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1261 	/* 102 - 4096x2160@60Hz 256:135 */
1262 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 4184,
1263 		   4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1264 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1265 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1266 	/* 103 - 3840x2160@24Hz 64:27 */
1267 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 5116,
1268 		   5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1269 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1270 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1271 	/* 104 - 3840x2160@25Hz 64:27 */
1272 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
1273 		   4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1274 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1275 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1276 	/* 105 - 3840x2160@30Hz 64:27 */
1277 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
1278 		   4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1279 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1280 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1281 	/* 106 - 3840x2160@50Hz 64:27 */
1282 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4896,
1283 		   4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1284 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1285 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1286 	/* 107 - 3840x2160@60Hz 64:27 */
1287 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4016,
1288 		   4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1289 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1290 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1291 	/* 108 - 1280x720@48Hz 16:9 */
1292 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 90000, 1280, 2240,
1293 		   2280, 2500, 0, 720, 725, 730, 750, 0,
1294 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1295 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1296 	/* 109 - 1280x720@48Hz 64:27 */
1297 	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 90000, 1280, 2240,
1298 		   2280, 2500, 0, 720, 725, 730, 750, 0,
1299 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1300 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1301 	/* 110 - 1680x720@48Hz 64:27 */
1302 	{ DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 99000, 1680, 2490,
1303 		   2530, 2750, 0, 720, 725, 730, 750, 0,
1304 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1305 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1306 	/* 111 - 1920x1080@48Hz 16:9 */
1307 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2558,
1308 		   2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1309 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1310 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1311 	/* 112 - 1920x1080@48Hz 64:27 */
1312 	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2558,
1313 		   2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1314 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1315 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1316 	/* 113 - 2560x1080@48Hz 64:27 */
1317 	{ DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 198000, 2560, 3558,
1318 		   3602, 3750, 0, 1080, 1084, 1089, 1100, 0,
1319 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1320 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1321 	/* 114 - 3840x2160@48Hz 16:9 */
1322 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 5116,
1323 		   5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1324 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1325 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1326 	/* 115 - 4096x2160@48Hz 256:135 */
1327 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 5116,
1328 		   5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1329 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1330 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1331 	/* 116 - 3840x2160@48Hz 64:27 */
1332 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 5116,
1333 		   5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1334 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1335 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1336 	/* 117 - 3840x2160@100Hz 16:9 */
1337 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4896,
1338 		   4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1339 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1340 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1341 	/* 118 - 3840x2160@120Hz 16:9 */
1342 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4016,
1343 		   4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1344 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1345 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1346 	/* 119 - 3840x2160@100Hz 64:27 */
1347 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4896,
1348 		   4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1349 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1350 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1351 	/* 120 - 3840x2160@120Hz 64:27 */
1352 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4016,
1353 		   4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1354 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1355 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1356 	/* 121 - 5120x2160@24Hz 64:27 */
1357 	{ DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 7116,
1358 		   7204, 7500, 0, 2160, 2168, 2178, 2200, 0,
1359 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1360 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1361 	/* 122 - 5120x2160@25Hz 64:27 */
1362 	{ DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 6816,
1363 		   6904, 7200, 0, 2160, 2168, 2178, 2200, 0,
1364 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1365 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1366 	/* 123 - 5120x2160@30Hz 64:27 */
1367 	{ DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 5784,
1368 		   5872, 6000, 0, 2160, 2168, 2178, 2200, 0,
1369 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1370 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1371 	/* 124 - 5120x2160@48Hz 64:27 */
1372 	{ DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 5866,
1373 		   5954, 6250, 0, 2160, 2168, 2178, 2475, 0,
1374 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1375 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1376 	/* 125 - 5120x2160@50Hz 64:27 */
1377 	{ DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 6216,
1378 		   6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
1379 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1380 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1381 	/* 126 - 5120x2160@60Hz 64:27 */
1382 	{ DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 5284,
1383 		   5372, 5500, 0, 2160, 2168, 2178, 2250, 0,
1384 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1385 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1386 	/* 127 - 5120x2160@100Hz 64:27 */
1387 	{ DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 6216,
1388 		   6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
1389 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1390 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1391 };
1392 
1393 /*
1394  * From CEA/CTA-861 spec.
1395  *
1396  * Do not access directly, instead always use cea_mode_for_vic().
1397  */
1398 static const struct drm_display_mode edid_cea_modes_193[] = {
1399 	/* 193 - 5120x2160@120Hz 64:27 */
1400 	{ DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 5284,
1401 		   5372, 5500, 0, 2160, 2168, 2178, 2250, 0,
1402 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1403 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1404 	/* 194 - 7680x4320@24Hz 16:9 */
1405 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232,
1406 		   10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1407 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1408 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1409 	/* 195 - 7680x4320@25Hz 16:9 */
1410 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032,
1411 		   10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1412 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1413 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1414 	/* 196 - 7680x4320@30Hz 16:9 */
1415 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232,
1416 		   8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1417 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1418 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1419 	/* 197 - 7680x4320@48Hz 16:9 */
1420 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232,
1421 		   10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1422 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1423 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1424 	/* 198 - 7680x4320@50Hz 16:9 */
1425 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032,
1426 		   10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1427 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1428 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1429 	/* 199 - 7680x4320@60Hz 16:9 */
1430 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232,
1431 		   8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1432 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1433 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1434 	/* 200 - 7680x4320@100Hz 16:9 */
1435 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792,
1436 		   9968, 10560, 0, 4320, 4336, 4356, 4500, 0,
1437 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1438 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1439 	/* 201 - 7680x4320@120Hz 16:9 */
1440 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032,
1441 		   8208, 8800, 0, 4320, 4336, 4356, 4500, 0,
1442 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1443 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1444 	/* 202 - 7680x4320@24Hz 64:27 */
1445 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232,
1446 		   10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1447 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1448 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1449 	/* 203 - 7680x4320@25Hz 64:27 */
1450 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032,
1451 		   10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1452 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1453 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1454 	/* 204 - 7680x4320@30Hz 64:27 */
1455 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232,
1456 		   8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1457 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1458 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1459 	/* 205 - 7680x4320@48Hz 64:27 */
1460 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232,
1461 		   10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1462 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1463 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1464 	/* 206 - 7680x4320@50Hz 64:27 */
1465 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032,
1466 		   10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1467 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1468 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1469 	/* 207 - 7680x4320@60Hz 64:27 */
1470 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232,
1471 		   8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1472 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1473 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1474 	/* 208 - 7680x4320@100Hz 64:27 */
1475 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792,
1476 		   9968, 10560, 0, 4320, 4336, 4356, 4500, 0,
1477 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1478 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1479 	/* 209 - 7680x4320@120Hz 64:27 */
1480 	{ DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032,
1481 		   8208, 8800, 0, 4320, 4336, 4356, 4500, 0,
1482 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1483 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1484 	/* 210 - 10240x4320@24Hz 64:27 */
1485 	{ DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 11732,
1486 		   11908, 12500, 0, 4320, 4336, 4356, 4950, 0,
1487 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1488 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1489 	/* 211 - 10240x4320@25Hz 64:27 */
1490 	{ DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 12732,
1491 		   12908, 13500, 0, 4320, 4336, 4356, 4400, 0,
1492 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1493 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1494 	/* 212 - 10240x4320@30Hz 64:27 */
1495 	{ DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 10528,
1496 		   10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1497 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1498 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1499 	/* 213 - 10240x4320@48Hz 64:27 */
1500 	{ DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 11732,
1501 		   11908, 12500, 0, 4320, 4336, 4356, 4950, 0,
1502 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1503 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1504 	/* 214 - 10240x4320@50Hz 64:27 */
1505 	{ DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 12732,
1506 		   12908, 13500, 0, 4320, 4336, 4356, 4400, 0,
1507 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1508 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1509 	/* 215 - 10240x4320@60Hz 64:27 */
1510 	{ DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 10528,
1511 		   10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1512 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1513 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1514 	/* 216 - 10240x4320@100Hz 64:27 */
1515 	{ DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 12432,
1516 		   12608, 13200, 0, 4320, 4336, 4356, 4500, 0,
1517 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1518 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1519 	/* 217 - 10240x4320@120Hz 64:27 */
1520 	{ DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 10528,
1521 		   10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1522 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1523 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1524 	/* 218 - 4096x2160@100Hz 256:135 */
1525 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4896,
1526 		   4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1527 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1528 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1529 	/* 219 - 4096x2160@120Hz 256:135 */
1530 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4184,
1531 		   4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1532 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1533 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1534 };
1535 
1536 /*
1537  * HDMI 1.4 4k modes. Index using the VIC.
1538  */
1539 static const struct drm_display_mode edid_4k_modes[] = {
1540 	/* 0 - dummy, VICs start at 1 */
1541 	{ },
1542 	/* 1 - 3840x2160@30Hz */
1543 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1544 		   3840, 4016, 4104, 4400, 0,
1545 		   2160, 2168, 2178, 2250, 0,
1546 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1547 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1548 	/* 2 - 3840x2160@25Hz */
1549 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1550 		   3840, 4896, 4984, 5280, 0,
1551 		   2160, 2168, 2178, 2250, 0,
1552 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1553 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1554 	/* 3 - 3840x2160@24Hz */
1555 	{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1556 		   3840, 5116, 5204, 5500, 0,
1557 		   2160, 2168, 2178, 2250, 0,
1558 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1559 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1560 	/* 4 - 4096x2160@24Hz (SMPTE) */
1561 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000,
1562 		   4096, 5116, 5204, 5500, 0,
1563 		   2160, 2168, 2178, 2250, 0,
1564 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1565 	  .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1566 };
1567 
1568 /*** DDC fetch and block validation ***/
1569 
1570 static int edid_extension_block_count(const struct edid *edid)
1571 {
1572 	return edid->extensions;
1573 }
1574 
1575 static int edid_block_count(const struct edid *edid)
1576 {
1577 	return edid_extension_block_count(edid) + 1;
1578 }
1579 
1580 static int edid_size_by_blocks(int num_blocks)
1581 {
1582 	return num_blocks * EDID_LENGTH;
1583 }
1584 
1585 static int edid_size(const struct edid *edid)
1586 {
1587 	return edid_size_by_blocks(edid_block_count(edid));
1588 }
1589 
1590 static const void *edid_block_data(const struct edid *edid, int index)
1591 {
1592 	BUILD_BUG_ON(sizeof(*edid) != EDID_LENGTH);
1593 
1594 	return edid + index;
1595 }
1596 
1597 static const void *edid_extension_block_data(const struct edid *edid, int index)
1598 {
1599 	return edid_block_data(edid, index + 1);
1600 }
1601 
1602 static const u8 edid_header[] = {
1603 	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
1604 };
1605 
1606 static void edid_header_fix(void *edid)
1607 {
1608 	memcpy(edid, edid_header, sizeof(edid_header));
1609 }
1610 
1611 /**
1612  * drm_edid_header_is_valid - sanity check the header of the base EDID block
1613  * @_edid: pointer to raw base EDID block
1614  *
1615  * Sanity check the header of the base EDID block.
1616  *
1617  * Return: 8 if the header is perfect, down to 0 if it's totally wrong.
1618  */
1619 int drm_edid_header_is_valid(const void *_edid)
1620 {
1621 	const struct edid *edid = _edid;
1622 	int i, score = 0;
1623 
1624 	for (i = 0; i < sizeof(edid_header); i++) {
1625 		if (edid->header[i] == edid_header[i])
1626 			score++;
1627 	}
1628 
1629 	return score;
1630 }
1631 EXPORT_SYMBOL(drm_edid_header_is_valid);
1632 
1633 static int edid_fixup __read_mostly = 6;
1634 module_param_named(edid_fixup, edid_fixup, int, 0400);
1635 MODULE_PARM_DESC(edid_fixup,
1636 		 "Minimum number of valid EDID header bytes (0-8, default 6)");
1637 
1638 static int edid_block_compute_checksum(const void *_block)
1639 {
1640 	const u8 *block = _block;
1641 	int i;
1642 	u8 csum = 0, crc = 0;
1643 
1644 	for (i = 0; i < EDID_LENGTH - 1; i++)
1645 		csum += block[i];
1646 
1647 	crc = 0x100 - csum;
1648 
1649 	return crc;
1650 }
1651 
1652 static int edid_block_get_checksum(const void *_block)
1653 {
1654 	const struct edid *block = _block;
1655 
1656 	return block->checksum;
1657 }
1658 
1659 static int edid_block_tag(const void *_block)
1660 {
1661 	const u8 *block = _block;
1662 
1663 	return block[0];
1664 }
1665 
1666 static bool edid_block_is_zero(const void *edid)
1667 {
1668 	return !memchr_inv(edid, 0, EDID_LENGTH);
1669 }
1670 
1671 /**
1672  * drm_edid_are_equal - compare two edid blobs.
1673  * @edid1: pointer to first blob
1674  * @edid2: pointer to second blob
1675  * This helper can be used during probing to determine if
1676  * edid had changed.
1677  */
1678 bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2)
1679 {
1680 	int edid1_len, edid2_len;
1681 	bool edid1_present = edid1 != NULL;
1682 	bool edid2_present = edid2 != NULL;
1683 
1684 	if (edid1_present != edid2_present)
1685 		return false;
1686 
1687 	if (edid1) {
1688 		edid1_len = edid_size(edid1);
1689 		edid2_len = edid_size(edid2);
1690 
1691 		if (edid1_len != edid2_len)
1692 			return false;
1693 
1694 		if (memcmp(edid1, edid2, edid1_len))
1695 			return false;
1696 	}
1697 
1698 	return true;
1699 }
1700 EXPORT_SYMBOL(drm_edid_are_equal);
1701 
1702 enum edid_block_status {
1703 	EDID_BLOCK_OK = 0,
1704 	EDID_BLOCK_READ_FAIL,
1705 	EDID_BLOCK_NULL,
1706 	EDID_BLOCK_ZERO,
1707 	EDID_BLOCK_HEADER_CORRUPT,
1708 	EDID_BLOCK_HEADER_REPAIR,
1709 	EDID_BLOCK_HEADER_FIXED,
1710 	EDID_BLOCK_CHECKSUM,
1711 	EDID_BLOCK_VERSION,
1712 };
1713 
1714 static enum edid_block_status edid_block_check(const void *_block,
1715 					       bool is_base_block)
1716 {
1717 	const struct edid *block = _block;
1718 
1719 	if (!block)
1720 		return EDID_BLOCK_NULL;
1721 
1722 	if (is_base_block) {
1723 		int score = drm_edid_header_is_valid(block);
1724 
1725 		if (score < clamp(edid_fixup, 0, 8)) {
1726 			if (edid_block_is_zero(block))
1727 				return EDID_BLOCK_ZERO;
1728 			else
1729 				return EDID_BLOCK_HEADER_CORRUPT;
1730 		}
1731 
1732 		if (score < 8)
1733 			return EDID_BLOCK_HEADER_REPAIR;
1734 	}
1735 
1736 	if (edid_block_compute_checksum(block) != edid_block_get_checksum(block)) {
1737 		if (edid_block_is_zero(block))
1738 			return EDID_BLOCK_ZERO;
1739 		else
1740 			return EDID_BLOCK_CHECKSUM;
1741 	}
1742 
1743 	if (is_base_block) {
1744 		if (block->version != 1)
1745 			return EDID_BLOCK_VERSION;
1746 	}
1747 
1748 	return EDID_BLOCK_OK;
1749 }
1750 
1751 static bool edid_block_status_valid(enum edid_block_status status, int tag)
1752 {
1753 	return status == EDID_BLOCK_OK ||
1754 		status == EDID_BLOCK_HEADER_FIXED ||
1755 		(status == EDID_BLOCK_CHECKSUM && tag == CEA_EXT);
1756 }
1757 
1758 static bool edid_block_valid(const void *block, bool base)
1759 {
1760 	return edid_block_status_valid(edid_block_check(block, base),
1761 				       edid_block_tag(block));
1762 }
1763 
1764 static void edid_block_status_print(enum edid_block_status status,
1765 				    const struct edid *block,
1766 				    int block_num)
1767 {
1768 	switch (status) {
1769 	case EDID_BLOCK_OK:
1770 		break;
1771 	case EDID_BLOCK_READ_FAIL:
1772 		pr_debug("EDID block %d read failed\n", block_num);
1773 		break;
1774 	case EDID_BLOCK_NULL:
1775 		pr_debug("EDID block %d pointer is NULL\n", block_num);
1776 		break;
1777 	case EDID_BLOCK_ZERO:
1778 		pr_notice("EDID block %d is all zeroes\n", block_num);
1779 		break;
1780 	case EDID_BLOCK_HEADER_CORRUPT:
1781 		pr_notice("EDID has corrupt header\n");
1782 		break;
1783 	case EDID_BLOCK_HEADER_REPAIR:
1784 		pr_debug("EDID corrupt header needs repair\n");
1785 		break;
1786 	case EDID_BLOCK_HEADER_FIXED:
1787 		pr_debug("EDID corrupt header fixed\n");
1788 		break;
1789 	case EDID_BLOCK_CHECKSUM:
1790 		if (edid_block_status_valid(status, edid_block_tag(block))) {
1791 			pr_debug("EDID block %d (tag 0x%02x) checksum is invalid, remainder is %d, ignoring\n",
1792 				 block_num, edid_block_tag(block),
1793 				 edid_block_compute_checksum(block));
1794 		} else {
1795 			pr_notice("EDID block %d (tag 0x%02x) checksum is invalid, remainder is %d\n",
1796 				  block_num, edid_block_tag(block),
1797 				  edid_block_compute_checksum(block));
1798 		}
1799 		break;
1800 	case EDID_BLOCK_VERSION:
1801 		pr_notice("EDID has major version %d, instead of 1\n",
1802 			  block->version);
1803 		break;
1804 	default:
1805 		WARN(1, "EDID block %d unknown edid block status code %d\n",
1806 		     block_num, status);
1807 		break;
1808 	}
1809 }
1810 
1811 static void edid_block_dump(const char *level, const void *block, int block_num)
1812 {
1813 	enum edid_block_status status;
1814 	char prefix[20];
1815 
1816 	status = edid_block_check(block, block_num == 0);
1817 	if (status == EDID_BLOCK_ZERO)
1818 		sprintf(prefix, "\t[%02x] ZERO ", block_num);
1819 	else if (!edid_block_status_valid(status, edid_block_tag(block)))
1820 		sprintf(prefix, "\t[%02x] BAD  ", block_num);
1821 	else
1822 		sprintf(prefix, "\t[%02x] GOOD ", block_num);
1823 
1824 	print_hex_dump(level, prefix, DUMP_PREFIX_NONE, 16, 1,
1825 		       block, EDID_LENGTH, false);
1826 }
1827 
1828 /**
1829  * drm_edid_block_valid - Sanity check the EDID block (base or extension)
1830  * @_block: pointer to raw EDID block
1831  * @block_num: type of block to validate (0 for base, extension otherwise)
1832  * @print_bad_edid: if true, dump bad EDID blocks to the console
1833  * @edid_corrupt: if true, the header or checksum is invalid
1834  *
1835  * Validate a base or extension EDID block and optionally dump bad blocks to
1836  * the console.
1837  *
1838  * Return: True if the block is valid, false otherwise.
1839  */
1840 bool drm_edid_block_valid(u8 *_block, int block_num, bool print_bad_edid,
1841 			  bool *edid_corrupt)
1842 {
1843 	struct edid *block = (struct edid *)_block;
1844 	enum edid_block_status status;
1845 	bool is_base_block = block_num == 0;
1846 	bool valid;
1847 
1848 	if (WARN_ON(!block))
1849 		return false;
1850 
1851 	status = edid_block_check(block, is_base_block);
1852 	if (status == EDID_BLOCK_HEADER_REPAIR) {
1853 		DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
1854 		edid_header_fix(block);
1855 
1856 		/* Retry with fixed header, update status if that worked. */
1857 		status = edid_block_check(block, is_base_block);
1858 		if (status == EDID_BLOCK_OK)
1859 			status = EDID_BLOCK_HEADER_FIXED;
1860 	}
1861 
1862 	if (edid_corrupt) {
1863 		/*
1864 		 * Unknown major version isn't corrupt but we can't use it. Only
1865 		 * the base block can reset edid_corrupt to false.
1866 		 */
1867 		if (is_base_block &&
1868 		    (status == EDID_BLOCK_OK || status == EDID_BLOCK_VERSION))
1869 			*edid_corrupt = false;
1870 		else if (status != EDID_BLOCK_OK)
1871 			*edid_corrupt = true;
1872 	}
1873 
1874 	edid_block_status_print(status, block, block_num);
1875 
1876 	/* Determine whether we can use this block with this status. */
1877 	valid = edid_block_status_valid(status, edid_block_tag(block));
1878 
1879 	if (!valid && print_bad_edid && status != EDID_BLOCK_ZERO) {
1880 		pr_notice("Raw EDID:\n");
1881 		edid_block_dump(KERN_NOTICE, block, block_num);
1882 	}
1883 
1884 	return valid;
1885 }
1886 EXPORT_SYMBOL(drm_edid_block_valid);
1887 
1888 /**
1889  * drm_edid_is_valid - sanity check EDID data
1890  * @edid: EDID data
1891  *
1892  * Sanity-check an entire EDID record (including extensions)
1893  *
1894  * Return: True if the EDID data is valid, false otherwise.
1895  */
1896 bool drm_edid_is_valid(struct edid *edid)
1897 {
1898 	int i;
1899 
1900 	if (!edid)
1901 		return false;
1902 
1903 	for (i = 0; i < edid_block_count(edid); i++) {
1904 		void *block = (void *)edid_block_data(edid, i);
1905 
1906 		if (!drm_edid_block_valid(block, i, true, NULL))
1907 			return false;
1908 	}
1909 
1910 	return true;
1911 }
1912 EXPORT_SYMBOL(drm_edid_is_valid);
1913 
1914 static struct edid *edid_filter_invalid_blocks(const struct edid *edid,
1915 					       int invalid_blocks)
1916 {
1917 	struct edid *new, *dest_block;
1918 	int valid_extensions = edid->extensions - invalid_blocks;
1919 	int i;
1920 
1921 	new = kmalloc(edid_size_by_blocks(valid_extensions + 1), GFP_KERNEL);
1922 	if (!new)
1923 		goto out;
1924 
1925 	dest_block = new;
1926 	for (i = 0; i < edid_block_count(edid); i++) {
1927 		const void *block = edid_block_data(edid, i);
1928 
1929 		if (edid_block_valid(block, i == 0))
1930 			memcpy(dest_block++, block, EDID_LENGTH);
1931 	}
1932 
1933 	new->extensions = valid_extensions;
1934 	new->checksum = edid_block_compute_checksum(new);
1935 
1936 out:
1937 	kfree(edid);
1938 
1939 	return new;
1940 }
1941 
1942 #define DDC_SEGMENT_ADDR 0x30
1943 /**
1944  * drm_do_probe_ddc_edid() - get EDID information via I2C
1945  * @data: I2C device adapter
1946  * @buf: EDID data buffer to be filled
1947  * @block: 128 byte EDID block to start fetching from
1948  * @len: EDID data buffer length to fetch
1949  *
1950  * Try to fetch EDID information by calling I2C driver functions.
1951  *
1952  * Return: 0 on success or -1 on failure.
1953  */
1954 static int
1955 drm_do_probe_ddc_edid(void *data, u8 *buf, unsigned int block, size_t len)
1956 {
1957 	struct i2c_adapter *adapter = data;
1958 	unsigned char start = block * EDID_LENGTH;
1959 	unsigned char segment = block >> 1;
1960 	unsigned char xfers = segment ? 3 : 2;
1961 	int ret, retries = 5;
1962 
1963 	/*
1964 	 * The core I2C driver will automatically retry the transfer if the
1965 	 * adapter reports EAGAIN. However, we find that bit-banging transfers
1966 	 * are susceptible to errors under a heavily loaded machine and
1967 	 * generate spurious NAKs and timeouts. Retrying the transfer
1968 	 * of the individual block a few times seems to overcome this.
1969 	 */
1970 	do {
1971 		struct i2c_msg msgs[] = {
1972 			{
1973 				.addr	= DDC_SEGMENT_ADDR,
1974 				.flags	= 0,
1975 				.len	= 1,
1976 				.buf	= &segment,
1977 			}, {
1978 				.addr	= DDC_ADDR,
1979 				.flags	= 0,
1980 				.len	= 1,
1981 				.buf	= &start,
1982 			}, {
1983 				.addr	= DDC_ADDR,
1984 				.flags	= I2C_M_RD,
1985 				.len	= len,
1986 				.buf	= buf,
1987 			}
1988 		};
1989 
1990 		/*
1991 		 * Avoid sending the segment addr to not upset non-compliant
1992 		 * DDC monitors.
1993 		 */
1994 		ret = i2c_transfer(adapter, &msgs[3 - xfers], xfers);
1995 
1996 		if (ret == -ENXIO) {
1997 			DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
1998 					adapter->name);
1999 			break;
2000 		}
2001 	} while (ret != xfers && --retries);
2002 
2003 	return ret == xfers ? 0 : -1;
2004 }
2005 
2006 static void connector_bad_edid(struct drm_connector *connector,
2007 			       const struct edid *edid, int num_blocks)
2008 {
2009 	int i;
2010 	u8 last_block;
2011 
2012 	/*
2013 	 * 0x7e in the EDID is the number of extension blocks. The EDID
2014 	 * is 1 (base block) + num_ext_blocks big. That means we can think
2015 	 * of 0x7e in the EDID of the _index_ of the last block in the
2016 	 * combined chunk of memory.
2017 	 */
2018 	last_block = edid->extensions;
2019 
2020 	/* Calculate real checksum for the last edid extension block data */
2021 	if (last_block < num_blocks)
2022 		connector->real_edid_checksum =
2023 			edid_block_compute_checksum(edid + last_block);
2024 
2025 	if (connector->bad_edid_counter++ && !drm_debug_enabled(DRM_UT_KMS))
2026 		return;
2027 
2028 	drm_dbg_kms(connector->dev, "%s: EDID is invalid:\n", connector->name);
2029 	for (i = 0; i < num_blocks; i++)
2030 		edid_block_dump(KERN_DEBUG, edid + i, i);
2031 }
2032 
2033 /* Get override or firmware EDID */
2034 static struct edid *drm_get_override_edid(struct drm_connector *connector)
2035 {
2036 	struct edid *override = NULL;
2037 
2038 	if (connector->override_edid)
2039 		override = drm_edid_duplicate(connector->edid_blob_ptr->data);
2040 
2041 	if (!override)
2042 		override = drm_load_edid_firmware(connector);
2043 
2044 	return IS_ERR(override) ? NULL : override;
2045 }
2046 
2047 /**
2048  * drm_add_override_edid_modes - add modes from override/firmware EDID
2049  * @connector: connector we're probing
2050  *
2051  * Add modes from the override/firmware EDID, if available. Only to be used from
2052  * drm_helper_probe_single_connector_modes() as a fallback for when DDC probe
2053  * failed during drm_get_edid() and caused the override/firmware EDID to be
2054  * skipped.
2055  *
2056  * Return: The number of modes added or 0 if we couldn't find any.
2057  */
2058 int drm_add_override_edid_modes(struct drm_connector *connector)
2059 {
2060 	struct edid *override;
2061 	int num_modes = 0;
2062 
2063 	override = drm_get_override_edid(connector);
2064 	if (override) {
2065 		drm_connector_update_edid_property(connector, override);
2066 		num_modes = drm_add_edid_modes(connector, override);
2067 		kfree(override);
2068 
2069 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] adding %d modes via fallback override/firmware EDID\n",
2070 			      connector->base.id, connector->name, num_modes);
2071 	}
2072 
2073 	return num_modes;
2074 }
2075 EXPORT_SYMBOL(drm_add_override_edid_modes);
2076 
2077 typedef int read_block_fn(void *context, u8 *buf, unsigned int block, size_t len);
2078 
2079 static enum edid_block_status edid_block_read(void *block, unsigned int block_num,
2080 					      read_block_fn read_block,
2081 					      void *context)
2082 {
2083 	enum edid_block_status status;
2084 	bool is_base_block = block_num == 0;
2085 	int try;
2086 
2087 	for (try = 0; try < 4; try++) {
2088 		if (read_block(context, block, block_num, EDID_LENGTH))
2089 			return EDID_BLOCK_READ_FAIL;
2090 
2091 		status = edid_block_check(block, is_base_block);
2092 		if (status == EDID_BLOCK_HEADER_REPAIR) {
2093 			edid_header_fix(block);
2094 
2095 			/* Retry with fixed header, update status if that worked. */
2096 			status = edid_block_check(block, is_base_block);
2097 			if (status == EDID_BLOCK_OK)
2098 				status = EDID_BLOCK_HEADER_FIXED;
2099 		}
2100 
2101 		if (edid_block_status_valid(status, edid_block_tag(block)))
2102 			break;
2103 
2104 		/* Fail early for unrepairable base block all zeros. */
2105 		if (try == 0 && is_base_block && status == EDID_BLOCK_ZERO)
2106 			break;
2107 	}
2108 
2109 	return status;
2110 }
2111 
2112 /**
2113  * drm_do_get_edid - get EDID data using a custom EDID block read function
2114  * @connector: connector we're probing
2115  * @read_block: EDID block read function
2116  * @context: private data passed to the block read function
2117  *
2118  * When the I2C adapter connected to the DDC bus is hidden behind a device that
2119  * exposes a different interface to read EDID blocks this function can be used
2120  * to get EDID data using a custom block read function.
2121  *
2122  * As in the general case the DDC bus is accessible by the kernel at the I2C
2123  * level, drivers must make all reasonable efforts to expose it as an I2C
2124  * adapter and use drm_get_edid() instead of abusing this function.
2125  *
2126  * The EDID may be overridden using debugfs override_edid or firmware EDID
2127  * (drm_load_edid_firmware() and drm.edid_firmware parameter), in this priority
2128  * order. Having either of them bypasses actual EDID reads.
2129  *
2130  * Return: Pointer to valid EDID or NULL if we couldn't find any.
2131  */
2132 struct edid *drm_do_get_edid(struct drm_connector *connector,
2133 			     read_block_fn read_block,
2134 			     void *context)
2135 {
2136 	enum edid_block_status status;
2137 	int i, invalid_blocks = 0;
2138 	struct edid *edid, *new;
2139 
2140 	edid = drm_get_override_edid(connector);
2141 	if (edid)
2142 		goto ok;
2143 
2144 	edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
2145 	if (!edid)
2146 		return NULL;
2147 
2148 	status = edid_block_read(edid, 0, read_block, context);
2149 
2150 	edid_block_status_print(status, edid, 0);
2151 
2152 	if (status == EDID_BLOCK_READ_FAIL)
2153 		goto fail;
2154 
2155 	/* FIXME: Clarify what a corrupt EDID actually means. */
2156 	if (status == EDID_BLOCK_OK || status == EDID_BLOCK_VERSION)
2157 		connector->edid_corrupt = false;
2158 	else
2159 		connector->edid_corrupt = true;
2160 
2161 	if (!edid_block_status_valid(status, edid_block_tag(edid))) {
2162 		if (status == EDID_BLOCK_ZERO)
2163 			connector->null_edid_counter++;
2164 
2165 		connector_bad_edid(connector, edid, 1);
2166 		goto fail;
2167 	}
2168 
2169 	if (!edid_extension_block_count(edid))
2170 		goto ok;
2171 
2172 	new = krealloc(edid, edid_size(edid), GFP_KERNEL);
2173 	if (!new)
2174 		goto fail;
2175 	edid = new;
2176 
2177 	for (i = 1; i < edid_block_count(edid); i++) {
2178 		void *block = (void *)edid_block_data(edid, i);
2179 
2180 		status = edid_block_read(block, i, read_block, context);
2181 
2182 		edid_block_status_print(status, block, i);
2183 
2184 		if (!edid_block_status_valid(status, edid_block_tag(block))) {
2185 			if (status == EDID_BLOCK_READ_FAIL)
2186 				goto fail;
2187 			invalid_blocks++;
2188 		}
2189 	}
2190 
2191 	if (invalid_blocks) {
2192 		connector_bad_edid(connector, edid, edid_block_count(edid));
2193 
2194 		edid = edid_filter_invalid_blocks(edid, invalid_blocks);
2195 	}
2196 
2197 ok:
2198 	return edid;
2199 
2200 fail:
2201 	kfree(edid);
2202 	return NULL;
2203 }
2204 EXPORT_SYMBOL_GPL(drm_do_get_edid);
2205 
2206 /**
2207  * drm_probe_ddc() - probe DDC presence
2208  * @adapter: I2C adapter to probe
2209  *
2210  * Return: True on success, false on failure.
2211  */
2212 bool
2213 drm_probe_ddc(struct i2c_adapter *adapter)
2214 {
2215 	unsigned char out;
2216 
2217 	return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
2218 }
2219 EXPORT_SYMBOL(drm_probe_ddc);
2220 
2221 /**
2222  * drm_get_edid - get EDID data, if available
2223  * @connector: connector we're probing
2224  * @adapter: I2C adapter to use for DDC
2225  *
2226  * Poke the given I2C channel to grab EDID data if possible.  If found,
2227  * attach it to the connector.
2228  *
2229  * Return: Pointer to valid EDID or NULL if we couldn't find any.
2230  */
2231 struct edid *drm_get_edid(struct drm_connector *connector,
2232 			  struct i2c_adapter *adapter)
2233 {
2234 	struct edid *edid;
2235 
2236 	if (connector->force == DRM_FORCE_OFF)
2237 		return NULL;
2238 
2239 	if (connector->force == DRM_FORCE_UNSPECIFIED && !drm_probe_ddc(adapter))
2240 		return NULL;
2241 
2242 	edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);
2243 	drm_connector_update_edid_property(connector, edid);
2244 	return edid;
2245 }
2246 EXPORT_SYMBOL(drm_get_edid);
2247 
2248 static u32 edid_extract_panel_id(const struct edid *edid)
2249 {
2250 	/*
2251 	 * We represent the ID as a 32-bit number so it can easily be compared
2252 	 * with "==".
2253 	 *
2254 	 * NOTE that we deal with endianness differently for the top half
2255 	 * of this ID than for the bottom half. The bottom half (the product
2256 	 * id) gets decoded as little endian by the EDID_PRODUCT_ID because
2257 	 * that's how everyone seems to interpret it. The top half (the mfg_id)
2258 	 * gets stored as big endian because that makes
2259 	 * drm_edid_encode_panel_id() and drm_edid_decode_panel_id() easier
2260 	 * to write (it's easier to extract the ASCII). It doesn't really
2261 	 * matter, though, as long as the number here is unique.
2262 	 */
2263 	return (u32)edid->mfg_id[0] << 24   |
2264 	       (u32)edid->mfg_id[1] << 16   |
2265 	       (u32)EDID_PRODUCT_ID(edid);
2266 }
2267 
2268 /**
2269  * drm_edid_get_panel_id - Get a panel's ID through DDC
2270  * @adapter: I2C adapter to use for DDC
2271  *
2272  * This function reads the first block of the EDID of a panel and (assuming
2273  * that the EDID is valid) extracts the ID out of it. The ID is a 32-bit value
2274  * (16 bits of manufacturer ID and 16 bits of per-manufacturer ID) that's
2275  * supposed to be different for each different modem of panel.
2276  *
2277  * This function is intended to be used during early probing on devices where
2278  * more than one panel might be present. Because of its intended use it must
2279  * assume that the EDID of the panel is correct, at least as far as the ID
2280  * is concerned (in other words, we don't process any overrides here).
2281  *
2282  * NOTE: it's expected that this function and drm_do_get_edid() will both
2283  * be read the EDID, but there is no caching between them. Since we're only
2284  * reading the first block, hopefully this extra overhead won't be too big.
2285  *
2286  * Return: A 32-bit ID that should be different for each make/model of panel.
2287  *         See the functions drm_edid_encode_panel_id() and
2288  *         drm_edid_decode_panel_id() for some details on the structure of this
2289  *         ID.
2290  */
2291 
2292 u32 drm_edid_get_panel_id(struct i2c_adapter *adapter)
2293 {
2294 	enum edid_block_status status;
2295 	void *base_block;
2296 	u32 panel_id = 0;
2297 
2298 	/*
2299 	 * There are no manufacturer IDs of 0, so if there is a problem reading
2300 	 * the EDID then we'll just return 0.
2301 	 */
2302 
2303 	base_block = kmalloc(EDID_LENGTH, GFP_KERNEL);
2304 	if (!base_block)
2305 		return 0;
2306 
2307 	status = edid_block_read(base_block, 0, drm_do_probe_ddc_edid, adapter);
2308 
2309 	edid_block_status_print(status, base_block, 0);
2310 
2311 	if (edid_block_status_valid(status, edid_block_tag(base_block)))
2312 		panel_id = edid_extract_panel_id(base_block);
2313 
2314 	kfree(base_block);
2315 
2316 	return panel_id;
2317 }
2318 EXPORT_SYMBOL(drm_edid_get_panel_id);
2319 
2320 /**
2321  * drm_get_edid_switcheroo - get EDID data for a vga_switcheroo output
2322  * @connector: connector we're probing
2323  * @adapter: I2C adapter to use for DDC
2324  *
2325  * Wrapper around drm_get_edid() for laptops with dual GPUs using one set of
2326  * outputs. The wrapper adds the requisite vga_switcheroo calls to temporarily
2327  * switch DDC to the GPU which is retrieving EDID.
2328  *
2329  * Return: Pointer to valid EDID or %NULL if we couldn't find any.
2330  */
2331 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
2332 				     struct i2c_adapter *adapter)
2333 {
2334 	struct drm_device *dev = connector->dev;
2335 	struct pci_dev *pdev = to_pci_dev(dev->dev);
2336 	struct edid *edid;
2337 
2338 	if (drm_WARN_ON_ONCE(dev, !dev_is_pci(dev->dev)))
2339 		return NULL;
2340 
2341 	vga_switcheroo_lock_ddc(pdev);
2342 	edid = drm_get_edid(connector, adapter);
2343 	vga_switcheroo_unlock_ddc(pdev);
2344 
2345 	return edid;
2346 }
2347 EXPORT_SYMBOL(drm_get_edid_switcheroo);
2348 
2349 /**
2350  * drm_edid_duplicate - duplicate an EDID and the extensions
2351  * @edid: EDID to duplicate
2352  *
2353  * Return: Pointer to duplicated EDID or NULL on allocation failure.
2354  */
2355 struct edid *drm_edid_duplicate(const struct edid *edid)
2356 {
2357 	return kmemdup(edid, edid_size(edid), GFP_KERNEL);
2358 }
2359 EXPORT_SYMBOL(drm_edid_duplicate);
2360 
2361 /*** EDID parsing ***/
2362 
2363 /**
2364  * edid_get_quirks - return quirk flags for a given EDID
2365  * @edid: EDID to process
2366  *
2367  * This tells subsequent routines what fixes they need to apply.
2368  */
2369 static u32 edid_get_quirks(const struct edid *edid)
2370 {
2371 	u32 panel_id = edid_extract_panel_id(edid);
2372 	const struct edid_quirk *quirk;
2373 	int i;
2374 
2375 	for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
2376 		quirk = &edid_quirk_list[i];
2377 		if (quirk->panel_id == panel_id)
2378 			return quirk->quirks;
2379 	}
2380 
2381 	return 0;
2382 }
2383 
2384 #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
2385 #define MODE_REFRESH_DIFF(c,t) (abs((c) - (t)))
2386 
2387 /*
2388  * Walk the mode list for connector, clearing the preferred status on existing
2389  * modes and setting it anew for the right mode ala quirks.
2390  */
2391 static void edid_fixup_preferred(struct drm_connector *connector,
2392 				 u32 quirks)
2393 {
2394 	struct drm_display_mode *t, *cur_mode, *preferred_mode;
2395 	int target_refresh = 0;
2396 	int cur_vrefresh, preferred_vrefresh;
2397 
2398 	if (list_empty(&connector->probed_modes))
2399 		return;
2400 
2401 	if (quirks & EDID_QUIRK_PREFER_LARGE_60)
2402 		target_refresh = 60;
2403 	if (quirks & EDID_QUIRK_PREFER_LARGE_75)
2404 		target_refresh = 75;
2405 
2406 	preferred_mode = list_first_entry(&connector->probed_modes,
2407 					  struct drm_display_mode, head);
2408 
2409 	list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
2410 		cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
2411 
2412 		if (cur_mode == preferred_mode)
2413 			continue;
2414 
2415 		/* Largest mode is preferred */
2416 		if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
2417 			preferred_mode = cur_mode;
2418 
2419 		cur_vrefresh = drm_mode_vrefresh(cur_mode);
2420 		preferred_vrefresh = drm_mode_vrefresh(preferred_mode);
2421 		/* At a given size, try to get closest to target refresh */
2422 		if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
2423 		    MODE_REFRESH_DIFF(cur_vrefresh, target_refresh) <
2424 		    MODE_REFRESH_DIFF(preferred_vrefresh, target_refresh)) {
2425 			preferred_mode = cur_mode;
2426 		}
2427 	}
2428 
2429 	preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
2430 }
2431 
2432 static bool
2433 mode_is_rb(const struct drm_display_mode *mode)
2434 {
2435 	return (mode->htotal - mode->hdisplay == 160) &&
2436 	       (mode->hsync_end - mode->hdisplay == 80) &&
2437 	       (mode->hsync_end - mode->hsync_start == 32) &&
2438 	       (mode->vsync_start - mode->vdisplay == 3);
2439 }
2440 
2441 /*
2442  * drm_mode_find_dmt - Create a copy of a mode if present in DMT
2443  * @dev: Device to duplicate against
2444  * @hsize: Mode width
2445  * @vsize: Mode height
2446  * @fresh: Mode refresh rate
2447  * @rb: Mode reduced-blanking-ness
2448  *
2449  * Walk the DMT mode list looking for a match for the given parameters.
2450  *
2451  * Return: A newly allocated copy of the mode, or NULL if not found.
2452  */
2453 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
2454 					   int hsize, int vsize, int fresh,
2455 					   bool rb)
2456 {
2457 	int i;
2458 
2459 	for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
2460 		const struct drm_display_mode *ptr = &drm_dmt_modes[i];
2461 
2462 		if (hsize != ptr->hdisplay)
2463 			continue;
2464 		if (vsize != ptr->vdisplay)
2465 			continue;
2466 		if (fresh != drm_mode_vrefresh(ptr))
2467 			continue;
2468 		if (rb != mode_is_rb(ptr))
2469 			continue;
2470 
2471 		return drm_mode_duplicate(dev, ptr);
2472 	}
2473 
2474 	return NULL;
2475 }
2476 EXPORT_SYMBOL(drm_mode_find_dmt);
2477 
2478 static bool is_display_descriptor(const struct detailed_timing *descriptor, u8 type)
2479 {
2480 	BUILD_BUG_ON(offsetof(typeof(*descriptor), pixel_clock) != 0);
2481 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.pad1) != 2);
2482 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.type) != 3);
2483 
2484 	return descriptor->pixel_clock == 0 &&
2485 		descriptor->data.other_data.pad1 == 0 &&
2486 		descriptor->data.other_data.type == type;
2487 }
2488 
2489 static bool is_detailed_timing_descriptor(const struct detailed_timing *descriptor)
2490 {
2491 	BUILD_BUG_ON(offsetof(typeof(*descriptor), pixel_clock) != 0);
2492 
2493 	return descriptor->pixel_clock != 0;
2494 }
2495 
2496 typedef void detailed_cb(const struct detailed_timing *timing, void *closure);
2497 
2498 static void
2499 cea_for_each_detailed_block(const u8 *ext, detailed_cb *cb, void *closure)
2500 {
2501 	int i, n;
2502 	u8 d = ext[0x02];
2503 	const u8 *det_base = ext + d;
2504 
2505 	if (d < 4 || d > 127)
2506 		return;
2507 
2508 	n = (127 - d) / 18;
2509 	for (i = 0; i < n; i++)
2510 		cb((const struct detailed_timing *)(det_base + 18 * i), closure);
2511 }
2512 
2513 static void
2514 vtb_for_each_detailed_block(const u8 *ext, detailed_cb *cb, void *closure)
2515 {
2516 	unsigned int i, n = min((int)ext[0x02], 6);
2517 	const u8 *det_base = ext + 5;
2518 
2519 	if (ext[0x01] != 1)
2520 		return; /* unknown version */
2521 
2522 	for (i = 0; i < n; i++)
2523 		cb((const struct detailed_timing *)(det_base + 18 * i), closure);
2524 }
2525 
2526 static void
2527 drm_for_each_detailed_block(const struct edid *edid, detailed_cb *cb, void *closure)
2528 {
2529 	int i;
2530 
2531 	if (edid == NULL)
2532 		return;
2533 
2534 	for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
2535 		cb(&(edid->detailed_timings[i]), closure);
2536 
2537 	for (i = 0; i < edid_extension_block_count(edid); i++) {
2538 		const u8 *ext = edid_extension_block_data(edid, i);
2539 
2540 		switch (*ext) {
2541 		case CEA_EXT:
2542 			cea_for_each_detailed_block(ext, cb, closure);
2543 			break;
2544 		case VTB_EXT:
2545 			vtb_for_each_detailed_block(ext, cb, closure);
2546 			break;
2547 		default:
2548 			break;
2549 		}
2550 	}
2551 }
2552 
2553 static void
2554 is_rb(const struct detailed_timing *descriptor, void *data)
2555 {
2556 	bool *res = data;
2557 
2558 	if (!is_display_descriptor(descriptor, EDID_DETAIL_MONITOR_RANGE))
2559 		return;
2560 
2561 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.flags) != 10);
2562 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.cvt.flags) != 15);
2563 
2564 	if (descriptor->data.other_data.data.range.flags == DRM_EDID_CVT_SUPPORT_FLAG &&
2565 	    descriptor->data.other_data.data.range.formula.cvt.flags & 0x10)
2566 		*res = true;
2567 }
2568 
2569 /* EDID 1.4 defines this explicitly.  For EDID 1.3, we guess, badly. */
2570 static bool
2571 drm_monitor_supports_rb(const struct edid *edid)
2572 {
2573 	if (edid->revision >= 4) {
2574 		bool ret = false;
2575 
2576 		drm_for_each_detailed_block(edid, is_rb, &ret);
2577 		return ret;
2578 	}
2579 
2580 	return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
2581 }
2582 
2583 static void
2584 find_gtf2(const struct detailed_timing *descriptor, void *data)
2585 {
2586 	const struct detailed_timing **res = data;
2587 
2588 	if (!is_display_descriptor(descriptor, EDID_DETAIL_MONITOR_RANGE))
2589 		return;
2590 
2591 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.flags) != 10);
2592 
2593 	if (descriptor->data.other_data.data.range.flags == 0x02)
2594 		*res = descriptor;
2595 }
2596 
2597 /* Secondary GTF curve kicks in above some break frequency */
2598 static int
2599 drm_gtf2_hbreak(const struct edid *edid)
2600 {
2601 	const struct detailed_timing *descriptor = NULL;
2602 
2603 	drm_for_each_detailed_block(edid, find_gtf2, &descriptor);
2604 
2605 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.hfreq_start_khz) != 12);
2606 
2607 	return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.hfreq_start_khz * 2 : 0;
2608 }
2609 
2610 static int
2611 drm_gtf2_2c(const struct edid *edid)
2612 {
2613 	const struct detailed_timing *descriptor = NULL;
2614 
2615 	drm_for_each_detailed_block(edid, find_gtf2, &descriptor);
2616 
2617 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.c) != 13);
2618 
2619 	return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.c : 0;
2620 }
2621 
2622 static int
2623 drm_gtf2_m(const struct edid *edid)
2624 {
2625 	const struct detailed_timing *descriptor = NULL;
2626 
2627 	drm_for_each_detailed_block(edid, find_gtf2, &descriptor);
2628 
2629 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.m) != 14);
2630 
2631 	return descriptor ? le16_to_cpu(descriptor->data.other_data.data.range.formula.gtf2.m) : 0;
2632 }
2633 
2634 static int
2635 drm_gtf2_k(const struct edid *edid)
2636 {
2637 	const struct detailed_timing *descriptor = NULL;
2638 
2639 	drm_for_each_detailed_block(edid, find_gtf2, &descriptor);
2640 
2641 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.k) != 16);
2642 
2643 	return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.k : 0;
2644 }
2645 
2646 static int
2647 drm_gtf2_2j(const struct edid *edid)
2648 {
2649 	const struct detailed_timing *descriptor = NULL;
2650 
2651 	drm_for_each_detailed_block(edid, find_gtf2, &descriptor);
2652 
2653 	BUILD_BUG_ON(offsetof(typeof(*descriptor), data.other_data.data.range.formula.gtf2.j) != 17);
2654 
2655 	return descriptor ? descriptor->data.other_data.data.range.formula.gtf2.j : 0;
2656 }
2657 
2658 /* Get standard timing level (CVT/GTF/DMT). */
2659 static int standard_timing_level(const struct edid *edid)
2660 {
2661 	if (edid->revision >= 2) {
2662 		if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
2663 			return LEVEL_CVT;
2664 		if (drm_gtf2_hbreak(edid))
2665 			return LEVEL_GTF2;
2666 		if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
2667 			return LEVEL_GTF;
2668 	}
2669 	return LEVEL_DMT;
2670 }
2671 
2672 /*
2673  * 0 is reserved.  The spec says 0x01 fill for unused timings.  Some old
2674  * monitors fill with ascii space (0x20) instead.
2675  */
2676 static int
2677 bad_std_timing(u8 a, u8 b)
2678 {
2679 	return (a == 0x00 && b == 0x00) ||
2680 	       (a == 0x01 && b == 0x01) ||
2681 	       (a == 0x20 && b == 0x20);
2682 }
2683 
2684 static int drm_mode_hsync(const struct drm_display_mode *mode)
2685 {
2686 	if (mode->htotal <= 0)
2687 		return 0;
2688 
2689 	return DIV_ROUND_CLOSEST(mode->clock, mode->htotal);
2690 }
2691 
2692 /*
2693  * Take the standard timing params (in this case width, aspect, and refresh)
2694  * and convert them into a real mode using CVT/GTF/DMT.
2695  */
2696 static struct drm_display_mode *
2697 drm_mode_std(struct drm_connector *connector, const struct edid *edid,
2698 	     const struct std_timing *t)
2699 {
2700 	struct drm_device *dev = connector->dev;
2701 	struct drm_display_mode *m, *mode = NULL;
2702 	int hsize, vsize;
2703 	int vrefresh_rate;
2704 	unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
2705 		>> EDID_TIMING_ASPECT_SHIFT;
2706 	unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
2707 		>> EDID_TIMING_VFREQ_SHIFT;
2708 	int timing_level = standard_timing_level(edid);
2709 
2710 	if (bad_std_timing(t->hsize, t->vfreq_aspect))
2711 		return NULL;
2712 
2713 	/* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
2714 	hsize = t->hsize * 8 + 248;
2715 	/* vrefresh_rate = vfreq + 60 */
2716 	vrefresh_rate = vfreq + 60;
2717 	/* the vdisplay is calculated based on the aspect ratio */
2718 	if (aspect_ratio == 0) {
2719 		if (edid->revision < 3)
2720 			vsize = hsize;
2721 		else
2722 			vsize = (hsize * 10) / 16;
2723 	} else if (aspect_ratio == 1)
2724 		vsize = (hsize * 3) / 4;
2725 	else if (aspect_ratio == 2)
2726 		vsize = (hsize * 4) / 5;
2727 	else
2728 		vsize = (hsize * 9) / 16;
2729 
2730 	/* HDTV hack, part 1 */
2731 	if (vrefresh_rate == 60 &&
2732 	    ((hsize == 1360 && vsize == 765) ||
2733 	     (hsize == 1368 && vsize == 769))) {
2734 		hsize = 1366;
2735 		vsize = 768;
2736 	}
2737 
2738 	/*
2739 	 * If this connector already has a mode for this size and refresh
2740 	 * rate (because it came from detailed or CVT info), use that
2741 	 * instead.  This way we don't have to guess at interlace or
2742 	 * reduced blanking.
2743 	 */
2744 	list_for_each_entry(m, &connector->probed_modes, head)
2745 		if (m->hdisplay == hsize && m->vdisplay == vsize &&
2746 		    drm_mode_vrefresh(m) == vrefresh_rate)
2747 			return NULL;
2748 
2749 	/* HDTV hack, part 2 */
2750 	if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
2751 		mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
2752 				    false);
2753 		if (!mode)
2754 			return NULL;
2755 		mode->hdisplay = 1366;
2756 		mode->hsync_start = mode->hsync_start - 1;
2757 		mode->hsync_end = mode->hsync_end - 1;
2758 		return mode;
2759 	}
2760 
2761 	/* check whether it can be found in default mode table */
2762 	if (drm_monitor_supports_rb(edid)) {
2763 		mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate,
2764 					 true);
2765 		if (mode)
2766 			return mode;
2767 	}
2768 	mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate, false);
2769 	if (mode)
2770 		return mode;
2771 
2772 	/* okay, generate it */
2773 	switch (timing_level) {
2774 	case LEVEL_DMT:
2775 		break;
2776 	case LEVEL_GTF:
2777 		mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
2778 		break;
2779 	case LEVEL_GTF2:
2780 		/*
2781 		 * This is potentially wrong if there's ever a monitor with
2782 		 * more than one ranges section, each claiming a different
2783 		 * secondary GTF curve.  Please don't do that.
2784 		 */
2785 		mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
2786 		if (!mode)
2787 			return NULL;
2788 		if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
2789 			drm_mode_destroy(dev, mode);
2790 			mode = drm_gtf_mode_complex(dev, hsize, vsize,
2791 						    vrefresh_rate, 0, 0,
2792 						    drm_gtf2_m(edid),
2793 						    drm_gtf2_2c(edid),
2794 						    drm_gtf2_k(edid),
2795 						    drm_gtf2_2j(edid));
2796 		}
2797 		break;
2798 	case LEVEL_CVT:
2799 		mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
2800 				    false);
2801 		break;
2802 	}
2803 	return mode;
2804 }
2805 
2806 /*
2807  * EDID is delightfully ambiguous about how interlaced modes are to be
2808  * encoded.  Our internal representation is of frame height, but some
2809  * HDTV detailed timings are encoded as field height.
2810  *
2811  * The format list here is from CEA, in frame size.  Technically we
2812  * should be checking refresh rate too.  Whatever.
2813  */
2814 static void
2815 drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
2816 			    const struct detailed_pixel_timing *pt)
2817 {
2818 	int i;
2819 	static const struct {
2820 		int w, h;
2821 	} cea_interlaced[] = {
2822 		{ 1920, 1080 },
2823 		{  720,  480 },
2824 		{ 1440,  480 },
2825 		{ 2880,  480 },
2826 		{  720,  576 },
2827 		{ 1440,  576 },
2828 		{ 2880,  576 },
2829 	};
2830 
2831 	if (!(pt->misc & DRM_EDID_PT_INTERLACED))
2832 		return;
2833 
2834 	for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
2835 		if ((mode->hdisplay == cea_interlaced[i].w) &&
2836 		    (mode->vdisplay == cea_interlaced[i].h / 2)) {
2837 			mode->vdisplay *= 2;
2838 			mode->vsync_start *= 2;
2839 			mode->vsync_end *= 2;
2840 			mode->vtotal *= 2;
2841 			mode->vtotal |= 1;
2842 		}
2843 	}
2844 
2845 	mode->flags |= DRM_MODE_FLAG_INTERLACE;
2846 }
2847 
2848 /*
2849  * Create a new mode from an EDID detailed timing section. An EDID detailed
2850  * timing block contains enough info for us to create and return a new struct
2851  * drm_display_mode.
2852  */
2853 static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
2854 						  const struct edid *edid,
2855 						  const struct detailed_timing *timing,
2856 						  u32 quirks)
2857 {
2858 	struct drm_display_mode *mode;
2859 	const struct detailed_pixel_timing *pt = &timing->data.pixel_data;
2860 	unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
2861 	unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
2862 	unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
2863 	unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
2864 	unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
2865 	unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
2866 	unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4;
2867 	unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
2868 
2869 	/* ignore tiny modes */
2870 	if (hactive < 64 || vactive < 64)
2871 		return NULL;
2872 
2873 	if (pt->misc & DRM_EDID_PT_STEREO) {
2874 		DRM_DEBUG_KMS("stereo mode not supported\n");
2875 		return NULL;
2876 	}
2877 	if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
2878 		DRM_DEBUG_KMS("composite sync not supported\n");
2879 	}
2880 
2881 	/* it is incorrect if hsync/vsync width is zero */
2882 	if (!hsync_pulse_width || !vsync_pulse_width) {
2883 		DRM_DEBUG_KMS("Incorrect Detailed timing. "
2884 				"Wrong Hsync/Vsync pulse width\n");
2885 		return NULL;
2886 	}
2887 
2888 	if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
2889 		mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
2890 		if (!mode)
2891 			return NULL;
2892 
2893 		goto set_size;
2894 	}
2895 
2896 	mode = drm_mode_create(dev);
2897 	if (!mode)
2898 		return NULL;
2899 
2900 	if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
2901 		mode->clock = 1088 * 10;
2902 	else
2903 		mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
2904 
2905 	mode->hdisplay = hactive;
2906 	mode->hsync_start = mode->hdisplay + hsync_offset;
2907 	mode->hsync_end = mode->hsync_start + hsync_pulse_width;
2908 	mode->htotal = mode->hdisplay + hblank;
2909 
2910 	mode->vdisplay = vactive;
2911 	mode->vsync_start = mode->vdisplay + vsync_offset;
2912 	mode->vsync_end = mode->vsync_start + vsync_pulse_width;
2913 	mode->vtotal = mode->vdisplay + vblank;
2914 
2915 	/* Some EDIDs have bogus h/vtotal values */
2916 	if (mode->hsync_end > mode->htotal)
2917 		mode->htotal = mode->hsync_end + 1;
2918 	if (mode->vsync_end > mode->vtotal)
2919 		mode->vtotal = mode->vsync_end + 1;
2920 
2921 	drm_mode_do_interlace_quirk(mode, pt);
2922 
2923 	if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
2924 		mode->flags |= DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC;
2925 	} else {
2926 		mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
2927 			DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
2928 		mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
2929 			DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
2930 	}
2931 
2932 set_size:
2933 	mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
2934 	mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
2935 
2936 	if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
2937 		mode->width_mm *= 10;
2938 		mode->height_mm *= 10;
2939 	}
2940 
2941 	if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
2942 		mode->width_mm = edid->width_cm * 10;
2943 		mode->height_mm = edid->height_cm * 10;
2944 	}
2945 
2946 	mode->type = DRM_MODE_TYPE_DRIVER;
2947 	drm_mode_set_name(mode);
2948 
2949 	return mode;
2950 }
2951 
2952 static bool
2953 mode_in_hsync_range(const struct drm_display_mode *mode,
2954 		    const struct edid *edid, const u8 *t)
2955 {
2956 	int hsync, hmin, hmax;
2957 
2958 	hmin = t[7];
2959 	if (edid->revision >= 4)
2960 	    hmin += ((t[4] & 0x04) ? 255 : 0);
2961 	hmax = t[8];
2962 	if (edid->revision >= 4)
2963 	    hmax += ((t[4] & 0x08) ? 255 : 0);
2964 	hsync = drm_mode_hsync(mode);
2965 
2966 	return (hsync <= hmax && hsync >= hmin);
2967 }
2968 
2969 static bool
2970 mode_in_vsync_range(const struct drm_display_mode *mode,
2971 		    const struct edid *edid, const u8 *t)
2972 {
2973 	int vsync, vmin, vmax;
2974 
2975 	vmin = t[5];
2976 	if (edid->revision >= 4)
2977 	    vmin += ((t[4] & 0x01) ? 255 : 0);
2978 	vmax = t[6];
2979 	if (edid->revision >= 4)
2980 	    vmax += ((t[4] & 0x02) ? 255 : 0);
2981 	vsync = drm_mode_vrefresh(mode);
2982 
2983 	return (vsync <= vmax && vsync >= vmin);
2984 }
2985 
2986 static u32
2987 range_pixel_clock(const struct edid *edid, const u8 *t)
2988 {
2989 	/* unspecified */
2990 	if (t[9] == 0 || t[9] == 255)
2991 		return 0;
2992 
2993 	/* 1.4 with CVT support gives us real precision, yay */
2994 	if (edid->revision >= 4 && t[10] == 0x04)
2995 		return (t[9] * 10000) - ((t[12] >> 2) * 250);
2996 
2997 	/* 1.3 is pathetic, so fuzz up a bit */
2998 	return t[9] * 10000 + 5001;
2999 }
3000 
3001 static bool
3002 mode_in_range(const struct drm_display_mode *mode, const struct edid *edid,
3003 	      const struct detailed_timing *timing)
3004 {
3005 	u32 max_clock;
3006 	const u8 *t = (const u8 *)timing;
3007 
3008 	if (!mode_in_hsync_range(mode, edid, t))
3009 		return false;
3010 
3011 	if (!mode_in_vsync_range(mode, edid, t))
3012 		return false;
3013 
3014 	if ((max_clock = range_pixel_clock(edid, t)))
3015 		if (mode->clock > max_clock)
3016 			return false;
3017 
3018 	/* 1.4 max horizontal check */
3019 	if (edid->revision >= 4 && t[10] == 0x04)
3020 		if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
3021 			return false;
3022 
3023 	if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))
3024 		return false;
3025 
3026 	return true;
3027 }
3028 
3029 static bool valid_inferred_mode(const struct drm_connector *connector,
3030 				const struct drm_display_mode *mode)
3031 {
3032 	const struct drm_display_mode *m;
3033 	bool ok = false;
3034 
3035 	list_for_each_entry(m, &connector->probed_modes, head) {
3036 		if (mode->hdisplay == m->hdisplay &&
3037 		    mode->vdisplay == m->vdisplay &&
3038 		    drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
3039 			return false; /* duplicated */
3040 		if (mode->hdisplay <= m->hdisplay &&
3041 		    mode->vdisplay <= m->vdisplay)
3042 			ok = true;
3043 	}
3044 	return ok;
3045 }
3046 
3047 static int
3048 drm_dmt_modes_for_range(struct drm_connector *connector, const struct edid *edid,
3049 			const struct detailed_timing *timing)
3050 {
3051 	int i, modes = 0;
3052 	struct drm_display_mode *newmode;
3053 	struct drm_device *dev = connector->dev;
3054 
3055 	for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
3056 		if (mode_in_range(drm_dmt_modes + i, edid, timing) &&
3057 		    valid_inferred_mode(connector, drm_dmt_modes + i)) {
3058 			newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
3059 			if (newmode) {
3060 				drm_mode_probed_add(connector, newmode);
3061 				modes++;
3062 			}
3063 		}
3064 	}
3065 
3066 	return modes;
3067 }
3068 
3069 /* fix up 1366x768 mode from 1368x768;
3070  * GFT/CVT can't express 1366 width which isn't dividable by 8
3071  */
3072 void drm_mode_fixup_1366x768(struct drm_display_mode *mode)
3073 {
3074 	if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
3075 		mode->hdisplay = 1366;
3076 		mode->hsync_start--;
3077 		mode->hsync_end--;
3078 		drm_mode_set_name(mode);
3079 	}
3080 }
3081 
3082 static int
3083 drm_gtf_modes_for_range(struct drm_connector *connector, const struct edid *edid,
3084 			const struct detailed_timing *timing)
3085 {
3086 	int i, modes = 0;
3087 	struct drm_display_mode *newmode;
3088 	struct drm_device *dev = connector->dev;
3089 
3090 	for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
3091 		const struct minimode *m = &extra_modes[i];
3092 
3093 		newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);
3094 		if (!newmode)
3095 			return modes;
3096 
3097 		drm_mode_fixup_1366x768(newmode);
3098 		if (!mode_in_range(newmode, edid, timing) ||
3099 		    !valid_inferred_mode(connector, newmode)) {
3100 			drm_mode_destroy(dev, newmode);
3101 			continue;
3102 		}
3103 
3104 		drm_mode_probed_add(connector, newmode);
3105 		modes++;
3106 	}
3107 
3108 	return modes;
3109 }
3110 
3111 static int
3112 drm_cvt_modes_for_range(struct drm_connector *connector, const struct edid *edid,
3113 			const struct detailed_timing *timing)
3114 {
3115 	int i, modes = 0;
3116 	struct drm_display_mode *newmode;
3117 	struct drm_device *dev = connector->dev;
3118 	bool rb = drm_monitor_supports_rb(edid);
3119 
3120 	for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
3121 		const struct minimode *m = &extra_modes[i];
3122 
3123 		newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);
3124 		if (!newmode)
3125 			return modes;
3126 
3127 		drm_mode_fixup_1366x768(newmode);
3128 		if (!mode_in_range(newmode, edid, timing) ||
3129 		    !valid_inferred_mode(connector, newmode)) {
3130 			drm_mode_destroy(dev, newmode);
3131 			continue;
3132 		}
3133 
3134 		drm_mode_probed_add(connector, newmode);
3135 		modes++;
3136 	}
3137 
3138 	return modes;
3139 }
3140 
3141 static void
3142 do_inferred_modes(const struct detailed_timing *timing, void *c)
3143 {
3144 	struct detailed_mode_closure *closure = c;
3145 	const struct detailed_non_pixel *data = &timing->data.other_data;
3146 	const struct detailed_data_monitor_range *range = &data->data.range;
3147 
3148 	if (!is_display_descriptor(timing, EDID_DETAIL_MONITOR_RANGE))
3149 		return;
3150 
3151 	closure->modes += drm_dmt_modes_for_range(closure->connector,
3152 						  closure->edid,
3153 						  timing);
3154 
3155 	if (!version_greater(closure->edid, 1, 1))
3156 		return; /* GTF not defined yet */
3157 
3158 	switch (range->flags) {
3159 	case 0x02: /* secondary gtf, XXX could do more */
3160 	case 0x00: /* default gtf */
3161 		closure->modes += drm_gtf_modes_for_range(closure->connector,
3162 							  closure->edid,
3163 							  timing);
3164 		break;
3165 	case 0x04: /* cvt, only in 1.4+ */
3166 		if (!version_greater(closure->edid, 1, 3))
3167 			break;
3168 
3169 		closure->modes += drm_cvt_modes_for_range(closure->connector,
3170 							  closure->edid,
3171 							  timing);
3172 		break;
3173 	case 0x01: /* just the ranges, no formula */
3174 	default:
3175 		break;
3176 	}
3177 }
3178 
3179 static int
3180 add_inferred_modes(struct drm_connector *connector, const struct edid *edid)
3181 {
3182 	struct detailed_mode_closure closure = {
3183 		.connector = connector,
3184 		.edid = edid,
3185 	};
3186 
3187 	if (version_greater(edid, 1, 0))
3188 		drm_for_each_detailed_block(edid, do_inferred_modes, &closure);
3189 
3190 	return closure.modes;
3191 }
3192 
3193 static int
3194 drm_est3_modes(struct drm_connector *connector, const struct detailed_timing *timing)
3195 {
3196 	int i, j, m, modes = 0;
3197 	struct drm_display_mode *mode;
3198 	const u8 *est = ((const u8 *)timing) + 6;
3199 
3200 	for (i = 0; i < 6; i++) {
3201 		for (j = 7; j >= 0; j--) {
3202 			m = (i * 8) + (7 - j);
3203 			if (m >= ARRAY_SIZE(est3_modes))
3204 				break;
3205 			if (est[i] & (1 << j)) {
3206 				mode = drm_mode_find_dmt(connector->dev,
3207 							 est3_modes[m].w,
3208 							 est3_modes[m].h,
3209 							 est3_modes[m].r,
3210 							 est3_modes[m].rb);
3211 				if (mode) {
3212 					drm_mode_probed_add(connector, mode);
3213 					modes++;
3214 				}
3215 			}
3216 		}
3217 	}
3218 
3219 	return modes;
3220 }
3221 
3222 static void
3223 do_established_modes(const struct detailed_timing *timing, void *c)
3224 {
3225 	struct detailed_mode_closure *closure = c;
3226 
3227 	if (!is_display_descriptor(timing, EDID_DETAIL_EST_TIMINGS))
3228 		return;
3229 
3230 	closure->modes += drm_est3_modes(closure->connector, timing);
3231 }
3232 
3233 /*
3234  * Get established modes from EDID and add them. Each EDID block contains a
3235  * bitmap of the supported "established modes" list (defined above). Tease them
3236  * out and add them to the global modes list.
3237  */
3238 static int
3239 add_established_modes(struct drm_connector *connector, const struct edid *edid)
3240 {
3241 	struct drm_device *dev = connector->dev;
3242 	unsigned long est_bits = edid->established_timings.t1 |
3243 		(edid->established_timings.t2 << 8) |
3244 		((edid->established_timings.mfg_rsvd & 0x80) << 9);
3245 	int i, modes = 0;
3246 	struct detailed_mode_closure closure = {
3247 		.connector = connector,
3248 		.edid = edid,
3249 	};
3250 
3251 	for (i = 0; i <= EDID_EST_TIMINGS; i++) {
3252 		if (est_bits & (1<<i)) {
3253 			struct drm_display_mode *newmode;
3254 
3255 			newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
3256 			if (newmode) {
3257 				drm_mode_probed_add(connector, newmode);
3258 				modes++;
3259 			}
3260 		}
3261 	}
3262 
3263 	if (version_greater(edid, 1, 0))
3264 		drm_for_each_detailed_block(edid, do_established_modes,
3265 					    &closure);
3266 
3267 	return modes + closure.modes;
3268 }
3269 
3270 static void
3271 do_standard_modes(const struct detailed_timing *timing, void *c)
3272 {
3273 	struct detailed_mode_closure *closure = c;
3274 	const struct detailed_non_pixel *data = &timing->data.other_data;
3275 	struct drm_connector *connector = closure->connector;
3276 	const struct edid *edid = closure->edid;
3277 	int i;
3278 
3279 	if (!is_display_descriptor(timing, EDID_DETAIL_STD_MODES))
3280 		return;
3281 
3282 	for (i = 0; i < 6; i++) {
3283 		const struct std_timing *std = &data->data.timings[i];
3284 		struct drm_display_mode *newmode;
3285 
3286 		newmode = drm_mode_std(connector, edid, std);
3287 		if (newmode) {
3288 			drm_mode_probed_add(connector, newmode);
3289 			closure->modes++;
3290 		}
3291 	}
3292 }
3293 
3294 /*
3295  * Get standard modes from EDID and add them. Standard modes can be calculated
3296  * using the appropriate standard (DMT, GTF, or CVT). Grab them from EDID and
3297  * add them to the list.
3298  */
3299 static int
3300 add_standard_modes(struct drm_connector *connector, const struct edid *edid)
3301 {
3302 	int i, modes = 0;
3303 	struct detailed_mode_closure closure = {
3304 		.connector = connector,
3305 		.edid = edid,
3306 	};
3307 
3308 	for (i = 0; i < EDID_STD_TIMINGS; i++) {
3309 		struct drm_display_mode *newmode;
3310 
3311 		newmode = drm_mode_std(connector, edid,
3312 				       &edid->standard_timings[i]);
3313 		if (newmode) {
3314 			drm_mode_probed_add(connector, newmode);
3315 			modes++;
3316 		}
3317 	}
3318 
3319 	if (version_greater(edid, 1, 0))
3320 		drm_for_each_detailed_block(edid, do_standard_modes,
3321 					    &closure);
3322 
3323 	/* XXX should also look for standard codes in VTB blocks */
3324 
3325 	return modes + closure.modes;
3326 }
3327 
3328 static int drm_cvt_modes(struct drm_connector *connector,
3329 			 const struct detailed_timing *timing)
3330 {
3331 	int i, j, modes = 0;
3332 	struct drm_display_mode *newmode;
3333 	struct drm_device *dev = connector->dev;
3334 	const struct cvt_timing *cvt;
3335 	const int rates[] = { 60, 85, 75, 60, 50 };
3336 	const u8 empty[3] = { 0, 0, 0 };
3337 
3338 	for (i = 0; i < 4; i++) {
3339 		int width, height;
3340 
3341 		cvt = &(timing->data.other_data.data.cvt[i]);
3342 
3343 		if (!memcmp(cvt->code, empty, 3))
3344 			continue;
3345 
3346 		height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
3347 		switch (cvt->code[1] & 0x0c) {
3348 		/* default - because compiler doesn't see that we've enumerated all cases */
3349 		default:
3350 		case 0x00:
3351 			width = height * 4 / 3;
3352 			break;
3353 		case 0x04:
3354 			width = height * 16 / 9;
3355 			break;
3356 		case 0x08:
3357 			width = height * 16 / 10;
3358 			break;
3359 		case 0x0c:
3360 			width = height * 15 / 9;
3361 			break;
3362 		}
3363 
3364 		for (j = 1; j < 5; j++) {
3365 			if (cvt->code[2] & (1 << j)) {
3366 				newmode = drm_cvt_mode(dev, width, height,
3367 						       rates[j], j == 0,
3368 						       false, false);
3369 				if (newmode) {
3370 					drm_mode_probed_add(connector, newmode);
3371 					modes++;
3372 				}
3373 			}
3374 		}
3375 	}
3376 
3377 	return modes;
3378 }
3379 
3380 static void
3381 do_cvt_mode(const struct detailed_timing *timing, void *c)
3382 {
3383 	struct detailed_mode_closure *closure = c;
3384 
3385 	if (!is_display_descriptor(timing, EDID_DETAIL_CVT_3BYTE))
3386 		return;
3387 
3388 	closure->modes += drm_cvt_modes(closure->connector, timing);
3389 }
3390 
3391 static int
3392 add_cvt_modes(struct drm_connector *connector, const struct edid *edid)
3393 {
3394 	struct detailed_mode_closure closure = {
3395 		.connector = connector,
3396 		.edid = edid,
3397 	};
3398 
3399 	if (version_greater(edid, 1, 2))
3400 		drm_for_each_detailed_block(edid, do_cvt_mode, &closure);
3401 
3402 	/* XXX should also look for CVT codes in VTB blocks */
3403 
3404 	return closure.modes;
3405 }
3406 
3407 static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode);
3408 
3409 static void
3410 do_detailed_mode(const struct detailed_timing *timing, void *c)
3411 {
3412 	struct detailed_mode_closure *closure = c;
3413 	struct drm_display_mode *newmode;
3414 
3415 	if (!is_detailed_timing_descriptor(timing))
3416 		return;
3417 
3418 	newmode = drm_mode_detailed(closure->connector->dev,
3419 				    closure->edid, timing,
3420 				    closure->quirks);
3421 	if (!newmode)
3422 		return;
3423 
3424 	if (closure->preferred)
3425 		newmode->type |= DRM_MODE_TYPE_PREFERRED;
3426 
3427 	/*
3428 	 * Detailed modes are limited to 10kHz pixel clock resolution,
3429 	 * so fix up anything that looks like CEA/HDMI mode, but the clock
3430 	 * is just slightly off.
3431 	 */
3432 	fixup_detailed_cea_mode_clock(newmode);
3433 
3434 	drm_mode_probed_add(closure->connector, newmode);
3435 	closure->modes++;
3436 	closure->preferred = false;
3437 }
3438 
3439 /*
3440  * add_detailed_modes - Add modes from detailed timings
3441  * @connector: attached connector
3442  * @edid: EDID block to scan
3443  * @quirks: quirks to apply
3444  */
3445 static int
3446 add_detailed_modes(struct drm_connector *connector, const struct edid *edid,
3447 		   u32 quirks)
3448 {
3449 	struct detailed_mode_closure closure = {
3450 		.connector = connector,
3451 		.edid = edid,
3452 		.preferred = true,
3453 		.quirks = quirks,
3454 	};
3455 
3456 	if (closure.preferred && !version_greater(edid, 1, 3))
3457 		closure.preferred =
3458 		    (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
3459 
3460 	drm_for_each_detailed_block(edid, do_detailed_mode, &closure);
3461 
3462 	return closure.modes;
3463 }
3464 
3465 #define AUDIO_BLOCK	0x01
3466 #define VIDEO_BLOCK     0x02
3467 #define VENDOR_BLOCK    0x03
3468 #define SPEAKER_BLOCK	0x04
3469 #define HDR_STATIC_METADATA_BLOCK	0x6
3470 #define USE_EXTENDED_TAG 0x07
3471 #define EXT_VIDEO_CAPABILITY_BLOCK 0x00
3472 #define EXT_VIDEO_DATA_BLOCK_420	0x0E
3473 #define EXT_VIDEO_CAP_BLOCK_Y420CMDB 0x0F
3474 #define EDID_BASIC_AUDIO	(1 << 6)
3475 #define EDID_CEA_YCRCB444	(1 << 5)
3476 #define EDID_CEA_YCRCB422	(1 << 4)
3477 #define EDID_CEA_VCDB_QS	(1 << 6)
3478 
3479 /*
3480  * Search EDID for CEA extension block.
3481  */
3482 const u8 *drm_find_edid_extension(const struct edid *edid,
3483 				  int ext_id, int *ext_index)
3484 {
3485 	const u8 *edid_ext = NULL;
3486 	int i;
3487 
3488 	/* No EDID or EDID extensions */
3489 	if (!edid || !edid_extension_block_count(edid))
3490 		return NULL;
3491 
3492 	/* Find CEA extension */
3493 	for (i = *ext_index; i < edid_extension_block_count(edid); i++) {
3494 		edid_ext = edid_extension_block_data(edid, i);
3495 		if (edid_block_tag(edid_ext) == ext_id)
3496 			break;
3497 	}
3498 
3499 	if (i >= edid_extension_block_count(edid))
3500 		return NULL;
3501 
3502 	*ext_index = i + 1;
3503 
3504 	return edid_ext;
3505 }
3506 
3507 static const u8 *drm_find_cea_extension(const struct edid *edid)
3508 {
3509 	const struct displayid_block *block;
3510 	struct displayid_iter iter;
3511 	const u8 *cea;
3512 	int ext_index = 0;
3513 
3514 	/* Look for a top level CEA extension block */
3515 	/* FIXME: make callers iterate through multiple CEA ext blocks? */
3516 	cea = drm_find_edid_extension(edid, CEA_EXT, &ext_index);
3517 	if (cea)
3518 		return cea;
3519 
3520 	/* CEA blocks can also be found embedded in a DisplayID block */
3521 	displayid_iter_edid_begin(edid, &iter);
3522 	displayid_iter_for_each(block, &iter) {
3523 		if (block->tag == DATA_BLOCK_CTA) {
3524 			cea = (const u8 *)block;
3525 			break;
3526 		}
3527 	}
3528 	displayid_iter_end(&iter);
3529 
3530 	return cea;
3531 }
3532 
3533 static __always_inline const struct drm_display_mode *cea_mode_for_vic(u8 vic)
3534 {
3535 	BUILD_BUG_ON(1 + ARRAY_SIZE(edid_cea_modes_1) - 1 != 127);
3536 	BUILD_BUG_ON(193 + ARRAY_SIZE(edid_cea_modes_193) - 1 != 219);
3537 
3538 	if (vic >= 1 && vic < 1 + ARRAY_SIZE(edid_cea_modes_1))
3539 		return &edid_cea_modes_1[vic - 1];
3540 	if (vic >= 193 && vic < 193 + ARRAY_SIZE(edid_cea_modes_193))
3541 		return &edid_cea_modes_193[vic - 193];
3542 	return NULL;
3543 }
3544 
3545 static u8 cea_num_vics(void)
3546 {
3547 	return 193 + ARRAY_SIZE(edid_cea_modes_193);
3548 }
3549 
3550 static u8 cea_next_vic(u8 vic)
3551 {
3552 	if (++vic == 1 + ARRAY_SIZE(edid_cea_modes_1))
3553 		vic = 193;
3554 	return vic;
3555 }
3556 
3557 /*
3558  * Calculate the alternate clock for the CEA mode
3559  * (60Hz vs. 59.94Hz etc.)
3560  */
3561 static unsigned int
3562 cea_mode_alternate_clock(const struct drm_display_mode *cea_mode)
3563 {
3564 	unsigned int clock = cea_mode->clock;
3565 
3566 	if (drm_mode_vrefresh(cea_mode) % 6 != 0)
3567 		return clock;
3568 
3569 	/*
3570 	 * edid_cea_modes contains the 59.94Hz
3571 	 * variant for 240 and 480 line modes,
3572 	 * and the 60Hz variant otherwise.
3573 	 */
3574 	if (cea_mode->vdisplay == 240 || cea_mode->vdisplay == 480)
3575 		clock = DIV_ROUND_CLOSEST(clock * 1001, 1000);
3576 	else
3577 		clock = DIV_ROUND_CLOSEST(clock * 1000, 1001);
3578 
3579 	return clock;
3580 }
3581 
3582 static bool
3583 cea_mode_alternate_timings(u8 vic, struct drm_display_mode *mode)
3584 {
3585 	/*
3586 	 * For certain VICs the spec allows the vertical
3587 	 * front porch to vary by one or two lines.
3588 	 *
3589 	 * cea_modes[] stores the variant with the shortest
3590 	 * vertical front porch. We can adjust the mode to
3591 	 * get the other variants by simply increasing the
3592 	 * vertical front porch length.
3593 	 */
3594 	BUILD_BUG_ON(cea_mode_for_vic(8)->vtotal != 262 ||
3595 		     cea_mode_for_vic(9)->vtotal != 262 ||
3596 		     cea_mode_for_vic(12)->vtotal != 262 ||
3597 		     cea_mode_for_vic(13)->vtotal != 262 ||
3598 		     cea_mode_for_vic(23)->vtotal != 312 ||
3599 		     cea_mode_for_vic(24)->vtotal != 312 ||
3600 		     cea_mode_for_vic(27)->vtotal != 312 ||
3601 		     cea_mode_for_vic(28)->vtotal != 312);
3602 
3603 	if (((vic == 8 || vic == 9 ||
3604 	      vic == 12 || vic == 13) && mode->vtotal < 263) ||
3605 	    ((vic == 23 || vic == 24 ||
3606 	      vic == 27 || vic == 28) && mode->vtotal < 314)) {
3607 		mode->vsync_start++;
3608 		mode->vsync_end++;
3609 		mode->vtotal++;
3610 
3611 		return true;
3612 	}
3613 
3614 	return false;
3615 }
3616 
3617 static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_match,
3618 					     unsigned int clock_tolerance)
3619 {
3620 	unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3621 	u8 vic;
3622 
3623 	if (!to_match->clock)
3624 		return 0;
3625 
3626 	if (to_match->picture_aspect_ratio)
3627 		match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3628 
3629 	for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) {
3630 		struct drm_display_mode cea_mode;
3631 		unsigned int clock1, clock2;
3632 
3633 		drm_mode_init(&cea_mode, cea_mode_for_vic(vic));
3634 
3635 		/* Check both 60Hz and 59.94Hz */
3636 		clock1 = cea_mode.clock;
3637 		clock2 = cea_mode_alternate_clock(&cea_mode);
3638 
3639 		if (abs(to_match->clock - clock1) > clock_tolerance &&
3640 		    abs(to_match->clock - clock2) > clock_tolerance)
3641 			continue;
3642 
3643 		do {
3644 			if (drm_mode_match(to_match, &cea_mode, match_flags))
3645 				return vic;
3646 		} while (cea_mode_alternate_timings(vic, &cea_mode));
3647 	}
3648 
3649 	return 0;
3650 }
3651 
3652 /**
3653  * drm_match_cea_mode - look for a CEA mode matching given mode
3654  * @to_match: display mode
3655  *
3656  * Return: The CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
3657  * mode.
3658  */
3659 u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
3660 {
3661 	unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3662 	u8 vic;
3663 
3664 	if (!to_match->clock)
3665 		return 0;
3666 
3667 	if (to_match->picture_aspect_ratio)
3668 		match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3669 
3670 	for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) {
3671 		struct drm_display_mode cea_mode;
3672 		unsigned int clock1, clock2;
3673 
3674 		drm_mode_init(&cea_mode, cea_mode_for_vic(vic));
3675 
3676 		/* Check both 60Hz and 59.94Hz */
3677 		clock1 = cea_mode.clock;
3678 		clock2 = cea_mode_alternate_clock(&cea_mode);
3679 
3680 		if (KHZ2PICOS(to_match->clock) != KHZ2PICOS(clock1) &&
3681 		    KHZ2PICOS(to_match->clock) != KHZ2PICOS(clock2))
3682 			continue;
3683 
3684 		do {
3685 			if (drm_mode_match(to_match, &cea_mode, match_flags))
3686 				return vic;
3687 		} while (cea_mode_alternate_timings(vic, &cea_mode));
3688 	}
3689 
3690 	return 0;
3691 }
3692 EXPORT_SYMBOL(drm_match_cea_mode);
3693 
3694 static bool drm_valid_cea_vic(u8 vic)
3695 {
3696 	return cea_mode_for_vic(vic) != NULL;
3697 }
3698 
3699 static enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code)
3700 {
3701 	const struct drm_display_mode *mode = cea_mode_for_vic(video_code);
3702 
3703 	if (mode)
3704 		return mode->picture_aspect_ratio;
3705 
3706 	return HDMI_PICTURE_ASPECT_NONE;
3707 }
3708 
3709 static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code)
3710 {
3711 	return edid_4k_modes[video_code].picture_aspect_ratio;
3712 }
3713 
3714 /*
3715  * Calculate the alternate clock for HDMI modes (those from the HDMI vendor
3716  * specific block).
3717  */
3718 static unsigned int
3719 hdmi_mode_alternate_clock(const struct drm_display_mode *hdmi_mode)
3720 {
3721 	return cea_mode_alternate_clock(hdmi_mode);
3722 }
3723 
3724 static u8 drm_match_hdmi_mode_clock_tolerance(const struct drm_display_mode *to_match,
3725 					      unsigned int clock_tolerance)
3726 {
3727 	unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3728 	u8 vic;
3729 
3730 	if (!to_match->clock)
3731 		return 0;
3732 
3733 	if (to_match->picture_aspect_ratio)
3734 		match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3735 
3736 	for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
3737 		const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
3738 		unsigned int clock1, clock2;
3739 
3740 		/* Make sure to also match alternate clocks */
3741 		clock1 = hdmi_mode->clock;
3742 		clock2 = hdmi_mode_alternate_clock(hdmi_mode);
3743 
3744 		if (abs(to_match->clock - clock1) > clock_tolerance &&
3745 		    abs(to_match->clock - clock2) > clock_tolerance)
3746 			continue;
3747 
3748 		if (drm_mode_match(to_match, hdmi_mode, match_flags))
3749 			return vic;
3750 	}
3751 
3752 	return 0;
3753 }
3754 
3755 /*
3756  * drm_match_hdmi_mode - look for a HDMI mode matching given mode
3757  * @to_match: display mode
3758  *
3759  * An HDMI mode is one defined in the HDMI vendor specific block.
3760  *
3761  * Returns the HDMI Video ID (VIC) of the mode or 0 if it isn't one.
3762  */
3763 static u8 drm_match_hdmi_mode(const struct drm_display_mode *to_match)
3764 {
3765 	unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3766 	u8 vic;
3767 
3768 	if (!to_match->clock)
3769 		return 0;
3770 
3771 	if (to_match->picture_aspect_ratio)
3772 		match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3773 
3774 	for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
3775 		const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
3776 		unsigned int clock1, clock2;
3777 
3778 		/* Make sure to also match alternate clocks */
3779 		clock1 = hdmi_mode->clock;
3780 		clock2 = hdmi_mode_alternate_clock(hdmi_mode);
3781 
3782 		if ((KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock1) ||
3783 		     KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock2)) &&
3784 		    drm_mode_match(to_match, hdmi_mode, match_flags))
3785 			return vic;
3786 	}
3787 	return 0;
3788 }
3789 
3790 static bool drm_valid_hdmi_vic(u8 vic)
3791 {
3792 	return vic > 0 && vic < ARRAY_SIZE(edid_4k_modes);
3793 }
3794 
3795 static int
3796 add_alternate_cea_modes(struct drm_connector *connector, const struct edid *edid)
3797 {
3798 	struct drm_device *dev = connector->dev;
3799 	struct drm_display_mode *mode, *tmp;
3800 	LIST_HEAD(list);
3801 	int modes = 0;
3802 
3803 	/* Don't add CEA modes if the CEA extension block is missing */
3804 	if (!drm_find_cea_extension(edid))
3805 		return 0;
3806 
3807 	/*
3808 	 * Go through all probed modes and create a new mode
3809 	 * with the alternate clock for certain CEA modes.
3810 	 */
3811 	list_for_each_entry(mode, &connector->probed_modes, head) {
3812 		const struct drm_display_mode *cea_mode = NULL;
3813 		struct drm_display_mode *newmode;
3814 		u8 vic = drm_match_cea_mode(mode);
3815 		unsigned int clock1, clock2;
3816 
3817 		if (drm_valid_cea_vic(vic)) {
3818 			cea_mode = cea_mode_for_vic(vic);
3819 			clock2 = cea_mode_alternate_clock(cea_mode);
3820 		} else {
3821 			vic = drm_match_hdmi_mode(mode);
3822 			if (drm_valid_hdmi_vic(vic)) {
3823 				cea_mode = &edid_4k_modes[vic];
3824 				clock2 = hdmi_mode_alternate_clock(cea_mode);
3825 			}
3826 		}
3827 
3828 		if (!cea_mode)
3829 			continue;
3830 
3831 		clock1 = cea_mode->clock;
3832 
3833 		if (clock1 == clock2)
3834 			continue;
3835 
3836 		if (mode->clock != clock1 && mode->clock != clock2)
3837 			continue;
3838 
3839 		newmode = drm_mode_duplicate(dev, cea_mode);
3840 		if (!newmode)
3841 			continue;
3842 
3843 		/* Carry over the stereo flags */
3844 		newmode->flags |= mode->flags & DRM_MODE_FLAG_3D_MASK;
3845 
3846 		/*
3847 		 * The current mode could be either variant. Make
3848 		 * sure to pick the "other" clock for the new mode.
3849 		 */
3850 		if (mode->clock != clock1)
3851 			newmode->clock = clock1;
3852 		else
3853 			newmode->clock = clock2;
3854 
3855 		list_add_tail(&newmode->head, &list);
3856 	}
3857 
3858 	list_for_each_entry_safe(mode, tmp, &list, head) {
3859 		list_del(&mode->head);
3860 		drm_mode_probed_add(connector, mode);
3861 		modes++;
3862 	}
3863 
3864 	return modes;
3865 }
3866 
3867 static u8 svd_to_vic(u8 svd)
3868 {
3869 	/* 0-6 bit vic, 7th bit native mode indicator */
3870 	if ((svd >= 1 &&  svd <= 64) || (svd >= 129 && svd <= 192))
3871 		return svd & 127;
3872 
3873 	return svd;
3874 }
3875 
3876 static struct drm_display_mode *
3877 drm_display_mode_from_vic_index(struct drm_connector *connector,
3878 				const u8 *video_db, u8 video_len,
3879 				u8 video_index)
3880 {
3881 	struct drm_device *dev = connector->dev;
3882 	struct drm_display_mode *newmode;
3883 	u8 vic;
3884 
3885 	if (video_db == NULL || video_index >= video_len)
3886 		return NULL;
3887 
3888 	/* CEA modes are numbered 1..127 */
3889 	vic = svd_to_vic(video_db[video_index]);
3890 	if (!drm_valid_cea_vic(vic))
3891 		return NULL;
3892 
3893 	newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic));
3894 	if (!newmode)
3895 		return NULL;
3896 
3897 	return newmode;
3898 }
3899 
3900 /*
3901  * do_y420vdb_modes - Parse YCBCR 420 only modes
3902  * @connector: connector corresponding to the HDMI sink
3903  * @svds: start of the data block of CEA YCBCR 420 VDB
3904  * @len: length of the CEA YCBCR 420 VDB
3905  *
3906  * Parse the CEA-861-F YCBCR 420 Video Data Block (Y420VDB)
3907  * which contains modes which can be supported in YCBCR 420
3908  * output format only.
3909  */
3910 static int do_y420vdb_modes(struct drm_connector *connector,
3911 			    const u8 *svds, u8 svds_len)
3912 {
3913 	int modes = 0, i;
3914 	struct drm_device *dev = connector->dev;
3915 	struct drm_display_info *info = &connector->display_info;
3916 	struct drm_hdmi_info *hdmi = &info->hdmi;
3917 
3918 	for (i = 0; i < svds_len; i++) {
3919 		u8 vic = svd_to_vic(svds[i]);
3920 		struct drm_display_mode *newmode;
3921 
3922 		if (!drm_valid_cea_vic(vic))
3923 			continue;
3924 
3925 		newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic));
3926 		if (!newmode)
3927 			break;
3928 		bitmap_set(hdmi->y420_vdb_modes, vic, 1);
3929 		drm_mode_probed_add(connector, newmode);
3930 		modes++;
3931 	}
3932 
3933 	if (modes > 0)
3934 		info->color_formats |= DRM_COLOR_FORMAT_YCBCR420;
3935 	return modes;
3936 }
3937 
3938 /*
3939  * drm_add_cmdb_modes - Add a YCBCR 420 mode into bitmap
3940  * @connector: connector corresponding to the HDMI sink
3941  * @vic: CEA vic for the video mode to be added in the map
3942  *
3943  * Makes an entry for a videomode in the YCBCR 420 bitmap
3944  */
3945 static void
3946 drm_add_cmdb_modes(struct drm_connector *connector, u8 svd)
3947 {
3948 	u8 vic = svd_to_vic(svd);
3949 	struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
3950 
3951 	if (!drm_valid_cea_vic(vic))
3952 		return;
3953 
3954 	bitmap_set(hdmi->y420_cmdb_modes, vic, 1);
3955 }
3956 
3957 /**
3958  * drm_display_mode_from_cea_vic() - return a mode for CEA VIC
3959  * @dev: DRM device
3960  * @video_code: CEA VIC of the mode
3961  *
3962  * Creates a new mode matching the specified CEA VIC.
3963  *
3964  * Returns: A new drm_display_mode on success or NULL on failure
3965  */
3966 struct drm_display_mode *
3967 drm_display_mode_from_cea_vic(struct drm_device *dev,
3968 			      u8 video_code)
3969 {
3970 	const struct drm_display_mode *cea_mode;
3971 	struct drm_display_mode *newmode;
3972 
3973 	cea_mode = cea_mode_for_vic(video_code);
3974 	if (!cea_mode)
3975 		return NULL;
3976 
3977 	newmode = drm_mode_duplicate(dev, cea_mode);
3978 	if (!newmode)
3979 		return NULL;
3980 
3981 	return newmode;
3982 }
3983 EXPORT_SYMBOL(drm_display_mode_from_cea_vic);
3984 
3985 static int
3986 do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)
3987 {
3988 	int i, modes = 0;
3989 	struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
3990 
3991 	for (i = 0; i < len; i++) {
3992 		struct drm_display_mode *mode;
3993 
3994 		mode = drm_display_mode_from_vic_index(connector, db, len, i);
3995 		if (mode) {
3996 			/*
3997 			 * YCBCR420 capability block contains a bitmap which
3998 			 * gives the index of CEA modes from CEA VDB, which
3999 			 * can support YCBCR 420 sampling output also (apart
4000 			 * from RGB/YCBCR444 etc).
4001 			 * For example, if the bit 0 in bitmap is set,
4002 			 * first mode in VDB can support YCBCR420 output too.
4003 			 * Add YCBCR420 modes only if sink is HDMI 2.0 capable.
4004 			 */
4005 			if (i < 64 && hdmi->y420_cmdb_map & (1ULL << i))
4006 				drm_add_cmdb_modes(connector, db[i]);
4007 
4008 			drm_mode_probed_add(connector, mode);
4009 			modes++;
4010 		}
4011 	}
4012 
4013 	return modes;
4014 }
4015 
4016 struct stereo_mandatory_mode {
4017 	int width, height, vrefresh;
4018 	unsigned int flags;
4019 };
4020 
4021 static const struct stereo_mandatory_mode stereo_mandatory_modes[] = {
4022 	{ 1920, 1080, 24, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
4023 	{ 1920, 1080, 24, DRM_MODE_FLAG_3D_FRAME_PACKING },
4024 	{ 1920, 1080, 50,
4025 	  DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
4026 	{ 1920, 1080, 60,
4027 	  DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
4028 	{ 1280, 720,  50, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
4029 	{ 1280, 720,  50, DRM_MODE_FLAG_3D_FRAME_PACKING },
4030 	{ 1280, 720,  60, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
4031 	{ 1280, 720,  60, DRM_MODE_FLAG_3D_FRAME_PACKING }
4032 };
4033 
4034 static bool
4035 stereo_match_mandatory(const struct drm_display_mode *mode,
4036 		       const struct stereo_mandatory_mode *stereo_mode)
4037 {
4038 	unsigned int interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
4039 
4040 	return mode->hdisplay == stereo_mode->width &&
4041 	       mode->vdisplay == stereo_mode->height &&
4042 	       interlaced == (stereo_mode->flags & DRM_MODE_FLAG_INTERLACE) &&
4043 	       drm_mode_vrefresh(mode) == stereo_mode->vrefresh;
4044 }
4045 
4046 static int add_hdmi_mandatory_stereo_modes(struct drm_connector *connector)
4047 {
4048 	struct drm_device *dev = connector->dev;
4049 	const struct drm_display_mode *mode;
4050 	struct list_head stereo_modes;
4051 	int modes = 0, i;
4052 
4053 	INIT_LIST_HEAD(&stereo_modes);
4054 
4055 	list_for_each_entry(mode, &connector->probed_modes, head) {
4056 		for (i = 0; i < ARRAY_SIZE(stereo_mandatory_modes); i++) {
4057 			const struct stereo_mandatory_mode *mandatory;
4058 			struct drm_display_mode *new_mode;
4059 
4060 			if (!stereo_match_mandatory(mode,
4061 						    &stereo_mandatory_modes[i]))
4062 				continue;
4063 
4064 			mandatory = &stereo_mandatory_modes[i];
4065 			new_mode = drm_mode_duplicate(dev, mode);
4066 			if (!new_mode)
4067 				continue;
4068 
4069 			new_mode->flags |= mandatory->flags;
4070 			list_add_tail(&new_mode->head, &stereo_modes);
4071 			modes++;
4072 		}
4073 	}
4074 
4075 	list_splice_tail(&stereo_modes, &connector->probed_modes);
4076 
4077 	return modes;
4078 }
4079 
4080 static int add_hdmi_mode(struct drm_connector *connector, u8 vic)
4081 {
4082 	struct drm_device *dev = connector->dev;
4083 	struct drm_display_mode *newmode;
4084 
4085 	if (!drm_valid_hdmi_vic(vic)) {
4086 		DRM_ERROR("Unknown HDMI VIC: %d\n", vic);
4087 		return 0;
4088 	}
4089 
4090 	newmode = drm_mode_duplicate(dev, &edid_4k_modes[vic]);
4091 	if (!newmode)
4092 		return 0;
4093 
4094 	drm_mode_probed_add(connector, newmode);
4095 
4096 	return 1;
4097 }
4098 
4099 static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
4100 			       const u8 *video_db, u8 video_len, u8 video_index)
4101 {
4102 	struct drm_display_mode *newmode;
4103 	int modes = 0;
4104 
4105 	if (structure & (1 << 0)) {
4106 		newmode = drm_display_mode_from_vic_index(connector, video_db,
4107 							  video_len,
4108 							  video_index);
4109 		if (newmode) {
4110 			newmode->flags |= DRM_MODE_FLAG_3D_FRAME_PACKING;
4111 			drm_mode_probed_add(connector, newmode);
4112 			modes++;
4113 		}
4114 	}
4115 	if (structure & (1 << 6)) {
4116 		newmode = drm_display_mode_from_vic_index(connector, video_db,
4117 							  video_len,
4118 							  video_index);
4119 		if (newmode) {
4120 			newmode->flags |= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
4121 			drm_mode_probed_add(connector, newmode);
4122 			modes++;
4123 		}
4124 	}
4125 	if (structure & (1 << 8)) {
4126 		newmode = drm_display_mode_from_vic_index(connector, video_db,
4127 							  video_len,
4128 							  video_index);
4129 		if (newmode) {
4130 			newmode->flags |= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
4131 			drm_mode_probed_add(connector, newmode);
4132 			modes++;
4133 		}
4134 	}
4135 
4136 	return modes;
4137 }
4138 
4139 /*
4140  * do_hdmi_vsdb_modes - Parse the HDMI Vendor Specific data block
4141  * @connector: connector corresponding to the HDMI sink
4142  * @db: start of the CEA vendor specific block
4143  * @len: length of the CEA block payload, ie. one can access up to db[len]
4144  *
4145  * Parses the HDMI VSDB looking for modes to add to @connector. This function
4146  * also adds the stereo 3d modes when applicable.
4147  */
4148 static int
4149 do_hdmi_vsdb_modes(struct drm_connector *connector, const u8 *db, u8 len,
4150 		   const u8 *video_db, u8 video_len)
4151 {
4152 	struct drm_display_info *info = &connector->display_info;
4153 	int modes = 0, offset = 0, i, multi_present = 0, multi_len;
4154 	u8 vic_len, hdmi_3d_len = 0;
4155 	u16 mask;
4156 	u16 structure_all;
4157 
4158 	if (len < 8)
4159 		goto out;
4160 
4161 	/* no HDMI_Video_Present */
4162 	if (!(db[8] & (1 << 5)))
4163 		goto out;
4164 
4165 	/* Latency_Fields_Present */
4166 	if (db[8] & (1 << 7))
4167 		offset += 2;
4168 
4169 	/* I_Latency_Fields_Present */
4170 	if (db[8] & (1 << 6))
4171 		offset += 2;
4172 
4173 	/* the declared length is not long enough for the 2 first bytes
4174 	 * of additional video format capabilities */
4175 	if (len < (8 + offset + 2))
4176 		goto out;
4177 
4178 	/* 3D_Present */
4179 	offset++;
4180 	if (db[8 + offset] & (1 << 7)) {
4181 		modes += add_hdmi_mandatory_stereo_modes(connector);
4182 
4183 		/* 3D_Multi_present */
4184 		multi_present = (db[8 + offset] & 0x60) >> 5;
4185 	}
4186 
4187 	offset++;
4188 	vic_len = db[8 + offset] >> 5;
4189 	hdmi_3d_len = db[8 + offset] & 0x1f;
4190 
4191 	for (i = 0; i < vic_len && len >= (9 + offset + i); i++) {
4192 		u8 vic;
4193 
4194 		vic = db[9 + offset + i];
4195 		modes += add_hdmi_mode(connector, vic);
4196 	}
4197 	offset += 1 + vic_len;
4198 
4199 	if (multi_present == 1)
4200 		multi_len = 2;
4201 	else if (multi_present == 2)
4202 		multi_len = 4;
4203 	else
4204 		multi_len = 0;
4205 
4206 	if (len < (8 + offset + hdmi_3d_len - 1))
4207 		goto out;
4208 
4209 	if (hdmi_3d_len < multi_len)
4210 		goto out;
4211 
4212 	if (multi_present == 1 || multi_present == 2) {
4213 		/* 3D_Structure_ALL */
4214 		structure_all = (db[8 + offset] << 8) | db[9 + offset];
4215 
4216 		/* check if 3D_MASK is present */
4217 		if (multi_present == 2)
4218 			mask = (db[10 + offset] << 8) | db[11 + offset];
4219 		else
4220 			mask = 0xffff;
4221 
4222 		for (i = 0; i < 16; i++) {
4223 			if (mask & (1 << i))
4224 				modes += add_3d_struct_modes(connector,
4225 						structure_all,
4226 						video_db,
4227 						video_len, i);
4228 		}
4229 	}
4230 
4231 	offset += multi_len;
4232 
4233 	for (i = 0; i < (hdmi_3d_len - multi_len); i++) {
4234 		int vic_index;
4235 		struct drm_display_mode *newmode = NULL;
4236 		unsigned int newflag = 0;
4237 		bool detail_present;
4238 
4239 		detail_present = ((db[8 + offset + i] & 0x0f) > 7);
4240 
4241 		if (detail_present && (i + 1 == hdmi_3d_len - multi_len))
4242 			break;
4243 
4244 		/* 2D_VIC_order_X */
4245 		vic_index = db[8 + offset + i] >> 4;
4246 
4247 		/* 3D_Structure_X */
4248 		switch (db[8 + offset + i] & 0x0f) {
4249 		case 0:
4250 			newflag = DRM_MODE_FLAG_3D_FRAME_PACKING;
4251 			break;
4252 		case 6:
4253 			newflag = DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
4254 			break;
4255 		case 8:
4256 			/* 3D_Detail_X */
4257 			if ((db[9 + offset + i] >> 4) == 1)
4258 				newflag = DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
4259 			break;
4260 		}
4261 
4262 		if (newflag != 0) {
4263 			newmode = drm_display_mode_from_vic_index(connector,
4264 								  video_db,
4265 								  video_len,
4266 								  vic_index);
4267 
4268 			if (newmode) {
4269 				newmode->flags |= newflag;
4270 				drm_mode_probed_add(connector, newmode);
4271 				modes++;
4272 			}
4273 		}
4274 
4275 		if (detail_present)
4276 			i++;
4277 	}
4278 
4279 out:
4280 	if (modes > 0)
4281 		info->has_hdmi_infoframe = true;
4282 	return modes;
4283 }
4284 
4285 static int
4286 cea_db_payload_len(const u8 *db)
4287 {
4288 	return db[0] & 0x1f;
4289 }
4290 
4291 static int
4292 cea_db_extended_tag(const u8 *db)
4293 {
4294 	return db[1];
4295 }
4296 
4297 static int
4298 cea_db_tag(const u8 *db)
4299 {
4300 	return db[0] >> 5;
4301 }
4302 
4303 static int
4304 cea_revision(const u8 *cea)
4305 {
4306 	/*
4307 	 * FIXME is this correct for the DispID variant?
4308 	 * The DispID spec doesn't really specify whether
4309 	 * this is the revision of the CEA extension or
4310 	 * the DispID CEA data block. And the only value
4311 	 * given as an example is 0.
4312 	 */
4313 	return cea[1];
4314 }
4315 
4316 static int
4317 cea_db_offsets(const u8 *cea, int *start, int *end)
4318 {
4319 	/* DisplayID CTA extension blocks and top-level CEA EDID
4320 	 * block header definitions differ in the following bytes:
4321 	 *   1) Byte 2 of the header specifies length differently,
4322 	 *   2) Byte 3 is only present in the CEA top level block.
4323 	 *
4324 	 * The different definitions for byte 2 follow.
4325 	 *
4326 	 * DisplayID CTA extension block defines byte 2 as:
4327 	 *   Number of payload bytes
4328 	 *
4329 	 * CEA EDID block defines byte 2 as:
4330 	 *   Byte number (decimal) within this block where the 18-byte
4331 	 *   DTDs begin. If no non-DTD data is present in this extension
4332 	 *   block, the value should be set to 04h (the byte after next).
4333 	 *   If set to 00h, there are no DTDs present in this block and
4334 	 *   no non-DTD data.
4335 	 */
4336 	if (cea[0] == DATA_BLOCK_CTA) {
4337 		/*
4338 		 * for_each_displayid_db() has already verified
4339 		 * that these stay within expected bounds.
4340 		 */
4341 		*start = 3;
4342 		*end = *start + cea[2];
4343 	} else if (cea[0] == CEA_EXT) {
4344 		/* Data block offset in CEA extension block */
4345 		*start = 4;
4346 		*end = cea[2];
4347 		if (*end == 0)
4348 			*end = 127;
4349 		if (*end < 4 || *end > 127)
4350 			return -ERANGE;
4351 	} else {
4352 		return -EOPNOTSUPP;
4353 	}
4354 
4355 	return 0;
4356 }
4357 
4358 static bool cea_db_is_hdmi_vsdb(const u8 *db)
4359 {
4360 	if (cea_db_tag(db) != VENDOR_BLOCK)
4361 		return false;
4362 
4363 	if (cea_db_payload_len(db) < 5)
4364 		return false;
4365 
4366 	return oui(db[3], db[2], db[1]) == HDMI_IEEE_OUI;
4367 }
4368 
4369 static bool cea_db_is_hdmi_forum_vsdb(const u8 *db)
4370 {
4371 	if (cea_db_tag(db) != VENDOR_BLOCK)
4372 		return false;
4373 
4374 	if (cea_db_payload_len(db) < 7)
4375 		return false;
4376 
4377 	return oui(db[3], db[2], db[1]) == HDMI_FORUM_IEEE_OUI;
4378 }
4379 
4380 static bool cea_db_is_microsoft_vsdb(const u8 *db)
4381 {
4382 	if (cea_db_tag(db) != VENDOR_BLOCK)
4383 		return false;
4384 
4385 	if (cea_db_payload_len(db) != 21)
4386 		return false;
4387 
4388 	return oui(db[3], db[2], db[1]) == MICROSOFT_IEEE_OUI;
4389 }
4390 
4391 static bool cea_db_is_vcdb(const u8 *db)
4392 {
4393 	if (cea_db_tag(db) != USE_EXTENDED_TAG)
4394 		return false;
4395 
4396 	if (cea_db_payload_len(db) != 2)
4397 		return false;
4398 
4399 	if (cea_db_extended_tag(db) != EXT_VIDEO_CAPABILITY_BLOCK)
4400 		return false;
4401 
4402 	return true;
4403 }
4404 
4405 static bool cea_db_is_y420cmdb(const u8 *db)
4406 {
4407 	if (cea_db_tag(db) != USE_EXTENDED_TAG)
4408 		return false;
4409 
4410 	if (!cea_db_payload_len(db))
4411 		return false;
4412 
4413 	if (cea_db_extended_tag(db) != EXT_VIDEO_CAP_BLOCK_Y420CMDB)
4414 		return false;
4415 
4416 	return true;
4417 }
4418 
4419 static bool cea_db_is_y420vdb(const u8 *db)
4420 {
4421 	if (cea_db_tag(db) != USE_EXTENDED_TAG)
4422 		return false;
4423 
4424 	if (!cea_db_payload_len(db))
4425 		return false;
4426 
4427 	if (cea_db_extended_tag(db) != EXT_VIDEO_DATA_BLOCK_420)
4428 		return false;
4429 
4430 	return true;
4431 }
4432 
4433 #define for_each_cea_db(cea, i, start, end) \
4434 	for ((i) = (start); (i) < (end) && (i) + cea_db_payload_len(&(cea)[(i)]) < (end); (i) += cea_db_payload_len(&(cea)[(i)]) + 1)
4435 
4436 static void drm_parse_y420cmdb_bitmap(struct drm_connector *connector,
4437 				      const u8 *db)
4438 {
4439 	struct drm_display_info *info = &connector->display_info;
4440 	struct drm_hdmi_info *hdmi = &info->hdmi;
4441 	u8 map_len = cea_db_payload_len(db) - 1;
4442 	u8 count;
4443 	u64 map = 0;
4444 
4445 	if (map_len == 0) {
4446 		/* All CEA modes support ycbcr420 sampling also.*/
4447 		hdmi->y420_cmdb_map = U64_MAX;
4448 		info->color_formats |= DRM_COLOR_FORMAT_YCBCR420;
4449 		return;
4450 	}
4451 
4452 	/*
4453 	 * This map indicates which of the existing CEA block modes
4454 	 * from VDB can support YCBCR420 output too. So if bit=0 is
4455 	 * set, first mode from VDB can support YCBCR420 output too.
4456 	 * We will parse and keep this map, before parsing VDB itself
4457 	 * to avoid going through the same block again and again.
4458 	 *
4459 	 * Spec is not clear about max possible size of this block.
4460 	 * Clamping max bitmap block size at 8 bytes. Every byte can
4461 	 * address 8 CEA modes, in this way this map can address
4462 	 * 8*8 = first 64 SVDs.
4463 	 */
4464 	if (WARN_ON_ONCE(map_len > 8))
4465 		map_len = 8;
4466 
4467 	for (count = 0; count < map_len; count++)
4468 		map |= (u64)db[2 + count] << (8 * count);
4469 
4470 	if (map)
4471 		info->color_formats |= DRM_COLOR_FORMAT_YCBCR420;
4472 
4473 	hdmi->y420_cmdb_map = map;
4474 }
4475 
4476 static int
4477 add_cea_modes(struct drm_connector *connector, const struct edid *edid)
4478 {
4479 	const u8 *cea = drm_find_cea_extension(edid);
4480 	const u8 *db, *hdmi = NULL, *video = NULL;
4481 	u8 dbl, hdmi_len, video_len = 0;
4482 	int modes = 0;
4483 
4484 	if (cea && cea_revision(cea) >= 3) {
4485 		int i, start, end;
4486 
4487 		if (cea_db_offsets(cea, &start, &end))
4488 			return 0;
4489 
4490 		for_each_cea_db(cea, i, start, end) {
4491 			db = &cea[i];
4492 			dbl = cea_db_payload_len(db);
4493 
4494 			if (cea_db_tag(db) == VIDEO_BLOCK) {
4495 				video = db + 1;
4496 				video_len = dbl;
4497 				modes += do_cea_modes(connector, video, dbl);
4498 			} else if (cea_db_is_hdmi_vsdb(db)) {
4499 				hdmi = db;
4500 				hdmi_len = dbl;
4501 			} else if (cea_db_is_y420vdb(db)) {
4502 				const u8 *vdb420 = &db[2];
4503 
4504 				/* Add 4:2:0(only) modes present in EDID */
4505 				modes += do_y420vdb_modes(connector,
4506 							  vdb420,
4507 							  dbl - 1);
4508 			}
4509 		}
4510 	}
4511 
4512 	/*
4513 	 * We parse the HDMI VSDB after having added the cea modes as we will
4514 	 * be patching their flags when the sink supports stereo 3D.
4515 	 */
4516 	if (hdmi)
4517 		modes += do_hdmi_vsdb_modes(connector, hdmi, hdmi_len, video,
4518 					    video_len);
4519 
4520 	return modes;
4521 }
4522 
4523 static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode)
4524 {
4525 	const struct drm_display_mode *cea_mode;
4526 	int clock1, clock2, clock;
4527 	u8 vic;
4528 	const char *type;
4529 
4530 	/*
4531 	 * allow 5kHz clock difference either way to account for
4532 	 * the 10kHz clock resolution limit of detailed timings.
4533 	 */
4534 	vic = drm_match_cea_mode_clock_tolerance(mode, 5);
4535 	if (drm_valid_cea_vic(vic)) {
4536 		type = "CEA";
4537 		cea_mode = cea_mode_for_vic(vic);
4538 		clock1 = cea_mode->clock;
4539 		clock2 = cea_mode_alternate_clock(cea_mode);
4540 	} else {
4541 		vic = drm_match_hdmi_mode_clock_tolerance(mode, 5);
4542 		if (drm_valid_hdmi_vic(vic)) {
4543 			type = "HDMI";
4544 			cea_mode = &edid_4k_modes[vic];
4545 			clock1 = cea_mode->clock;
4546 			clock2 = hdmi_mode_alternate_clock(cea_mode);
4547 		} else {
4548 			return;
4549 		}
4550 	}
4551 
4552 	/* pick whichever is closest */
4553 	if (abs(mode->clock - clock1) < abs(mode->clock - clock2))
4554 		clock = clock1;
4555 	else
4556 		clock = clock2;
4557 
4558 	if (mode->clock == clock)
4559 		return;
4560 
4561 	DRM_DEBUG("detailed mode matches %s VIC %d, adjusting clock %d -> %d\n",
4562 		  type, vic, mode->clock, clock);
4563 	mode->clock = clock;
4564 }
4565 
4566 static bool cea_db_is_hdmi_hdr_metadata_block(const u8 *db)
4567 {
4568 	if (cea_db_tag(db) != USE_EXTENDED_TAG)
4569 		return false;
4570 
4571 	if (db[1] != HDR_STATIC_METADATA_BLOCK)
4572 		return false;
4573 
4574 	if (cea_db_payload_len(db) < 3)
4575 		return false;
4576 
4577 	return true;
4578 }
4579 
4580 static uint8_t eotf_supported(const u8 *edid_ext)
4581 {
4582 	return edid_ext[2] &
4583 		(BIT(HDMI_EOTF_TRADITIONAL_GAMMA_SDR) |
4584 		 BIT(HDMI_EOTF_TRADITIONAL_GAMMA_HDR) |
4585 		 BIT(HDMI_EOTF_SMPTE_ST2084) |
4586 		 BIT(HDMI_EOTF_BT_2100_HLG));
4587 }
4588 
4589 static uint8_t hdr_metadata_type(const u8 *edid_ext)
4590 {
4591 	return edid_ext[3] &
4592 		BIT(HDMI_STATIC_METADATA_TYPE1);
4593 }
4594 
4595 static void
4596 drm_parse_hdr_metadata_block(struct drm_connector *connector, const u8 *db)
4597 {
4598 	u16 len;
4599 
4600 	len = cea_db_payload_len(db);
4601 
4602 	connector->hdr_sink_metadata.hdmi_type1.eotf =
4603 						eotf_supported(db);
4604 	connector->hdr_sink_metadata.hdmi_type1.metadata_type =
4605 						hdr_metadata_type(db);
4606 
4607 	if (len >= 4)
4608 		connector->hdr_sink_metadata.hdmi_type1.max_cll = db[4];
4609 	if (len >= 5)
4610 		connector->hdr_sink_metadata.hdmi_type1.max_fall = db[5];
4611 	if (len >= 6)
4612 		connector->hdr_sink_metadata.hdmi_type1.min_cll = db[6];
4613 }
4614 
4615 static void
4616 drm_parse_hdmi_vsdb_audio(struct drm_connector *connector, const u8 *db)
4617 {
4618 	u8 len = cea_db_payload_len(db);
4619 
4620 	if (len >= 6 && (db[6] & (1 << 7)))
4621 		connector->eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_SUPPORTS_AI;
4622 	if (len >= 8) {
4623 		connector->latency_present[0] = db[8] >> 7;
4624 		connector->latency_present[1] = (db[8] >> 6) & 1;
4625 	}
4626 	if (len >= 9)
4627 		connector->video_latency[0] = db[9];
4628 	if (len >= 10)
4629 		connector->audio_latency[0] = db[10];
4630 	if (len >= 11)
4631 		connector->video_latency[1] = db[11];
4632 	if (len >= 12)
4633 		connector->audio_latency[1] = db[12];
4634 
4635 	DRM_DEBUG_KMS("HDMI: latency present %d %d, "
4636 		      "video latency %d %d, "
4637 		      "audio latency %d %d\n",
4638 		      connector->latency_present[0],
4639 		      connector->latency_present[1],
4640 		      connector->video_latency[0],
4641 		      connector->video_latency[1],
4642 		      connector->audio_latency[0],
4643 		      connector->audio_latency[1]);
4644 }
4645 
4646 static void
4647 monitor_name(const struct detailed_timing *timing, void *data)
4648 {
4649 	const char **res = data;
4650 
4651 	if (!is_display_descriptor(timing, EDID_DETAIL_MONITOR_NAME))
4652 		return;
4653 
4654 	*res = timing->data.other_data.data.str.str;
4655 }
4656 
4657 static int get_monitor_name(const struct edid *edid, char name[13])
4658 {
4659 	const char *edid_name = NULL;
4660 	int mnl;
4661 
4662 	if (!edid || !name)
4663 		return 0;
4664 
4665 	drm_for_each_detailed_block(edid, monitor_name, &edid_name);
4666 	for (mnl = 0; edid_name && mnl < 13; mnl++) {
4667 		if (edid_name[mnl] == 0x0a)
4668 			break;
4669 
4670 		name[mnl] = edid_name[mnl];
4671 	}
4672 
4673 	return mnl;
4674 }
4675 
4676 /**
4677  * drm_edid_get_monitor_name - fetch the monitor name from the edid
4678  * @edid: monitor EDID information
4679  * @name: pointer to a character array to hold the name of the monitor
4680  * @bufsize: The size of the name buffer (should be at least 14 chars.)
4681  *
4682  */
4683 void drm_edid_get_monitor_name(const struct edid *edid, char *name, int bufsize)
4684 {
4685 	int name_length;
4686 	char buf[13];
4687 
4688 	if (bufsize <= 0)
4689 		return;
4690 
4691 	name_length = min(get_monitor_name(edid, buf), bufsize - 1);
4692 	memcpy(name, buf, name_length);
4693 	name[name_length] = '\0';
4694 }
4695 EXPORT_SYMBOL(drm_edid_get_monitor_name);
4696 
4697 static void clear_eld(struct drm_connector *connector)
4698 {
4699 	memset(connector->eld, 0, sizeof(connector->eld));
4700 
4701 	connector->latency_present[0] = false;
4702 	connector->latency_present[1] = false;
4703 	connector->video_latency[0] = 0;
4704 	connector->audio_latency[0] = 0;
4705 	connector->video_latency[1] = 0;
4706 	connector->audio_latency[1] = 0;
4707 }
4708 
4709 /*
4710  * drm_edid_to_eld - build ELD from EDID
4711  * @connector: connector corresponding to the HDMI/DP sink
4712  * @edid: EDID to parse
4713  *
4714  * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver. The
4715  * HDCP and Port_ID ELD fields are left for the graphics driver to fill in.
4716  */
4717 static void drm_edid_to_eld(struct drm_connector *connector,
4718 			    const struct edid *edid)
4719 {
4720 	uint8_t *eld = connector->eld;
4721 	const u8 *cea;
4722 	const u8 *db;
4723 	int total_sad_count = 0;
4724 	int mnl;
4725 	int dbl;
4726 
4727 	clear_eld(connector);
4728 
4729 	if (!edid)
4730 		return;
4731 
4732 	cea = drm_find_cea_extension(edid);
4733 	if (!cea) {
4734 		DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
4735 		return;
4736 	}
4737 
4738 	mnl = get_monitor_name(edid, &eld[DRM_ELD_MONITOR_NAME_STRING]);
4739 	DRM_DEBUG_KMS("ELD monitor %s\n", &eld[DRM_ELD_MONITOR_NAME_STRING]);
4740 
4741 	eld[DRM_ELD_CEA_EDID_VER_MNL] = cea[1] << DRM_ELD_CEA_EDID_VER_SHIFT;
4742 	eld[DRM_ELD_CEA_EDID_VER_MNL] |= mnl;
4743 
4744 	eld[DRM_ELD_VER] = DRM_ELD_VER_CEA861D;
4745 
4746 	eld[DRM_ELD_MANUFACTURER_NAME0] = edid->mfg_id[0];
4747 	eld[DRM_ELD_MANUFACTURER_NAME1] = edid->mfg_id[1];
4748 	eld[DRM_ELD_PRODUCT_CODE0] = edid->prod_code[0];
4749 	eld[DRM_ELD_PRODUCT_CODE1] = edid->prod_code[1];
4750 
4751 	if (cea_revision(cea) >= 3) {
4752 		int i, start, end;
4753 		int sad_count;
4754 
4755 		if (cea_db_offsets(cea, &start, &end)) {
4756 			start = 0;
4757 			end = 0;
4758 		}
4759 
4760 		for_each_cea_db(cea, i, start, end) {
4761 			db = &cea[i];
4762 			dbl = cea_db_payload_len(db);
4763 
4764 			switch (cea_db_tag(db)) {
4765 			case AUDIO_BLOCK:
4766 				/* Audio Data Block, contains SADs */
4767 				sad_count = min(dbl / 3, 15 - total_sad_count);
4768 				if (sad_count >= 1)
4769 					memcpy(&eld[DRM_ELD_CEA_SAD(mnl, total_sad_count)],
4770 					       &db[1], sad_count * 3);
4771 				total_sad_count += sad_count;
4772 				break;
4773 			case SPEAKER_BLOCK:
4774 				/* Speaker Allocation Data Block */
4775 				if (dbl >= 1)
4776 					eld[DRM_ELD_SPEAKER] = db[1];
4777 				break;
4778 			case VENDOR_BLOCK:
4779 				/* HDMI Vendor-Specific Data Block */
4780 				if (cea_db_is_hdmi_vsdb(db))
4781 					drm_parse_hdmi_vsdb_audio(connector, db);
4782 				break;
4783 			default:
4784 				break;
4785 			}
4786 		}
4787 	}
4788 	eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= total_sad_count << DRM_ELD_SAD_COUNT_SHIFT;
4789 
4790 	if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
4791 	    connector->connector_type == DRM_MODE_CONNECTOR_eDP)
4792 		eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_CONN_TYPE_DP;
4793 	else
4794 		eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_CONN_TYPE_HDMI;
4795 
4796 	eld[DRM_ELD_BASELINE_ELD_LEN] =
4797 		DIV_ROUND_UP(drm_eld_calc_baseline_block_size(eld), 4);
4798 
4799 	DRM_DEBUG_KMS("ELD size %d, SAD count %d\n",
4800 		      drm_eld_size(eld), total_sad_count);
4801 }
4802 
4803 /**
4804  * drm_edid_to_sad - extracts SADs from EDID
4805  * @edid: EDID to parse
4806  * @sads: pointer that will be set to the extracted SADs
4807  *
4808  * Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
4809  *
4810  * Note: The returned pointer needs to be freed using kfree().
4811  *
4812  * Return: The number of found SADs or negative number on error.
4813  */
4814 int drm_edid_to_sad(const struct edid *edid, struct cea_sad **sads)
4815 {
4816 	int count = 0;
4817 	int i, start, end, dbl;
4818 	const u8 *cea;
4819 
4820 	cea = drm_find_cea_extension(edid);
4821 	if (!cea) {
4822 		DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
4823 		return 0;
4824 	}
4825 
4826 	if (cea_revision(cea) < 3) {
4827 		DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
4828 		return 0;
4829 	}
4830 
4831 	if (cea_db_offsets(cea, &start, &end)) {
4832 		DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
4833 		return -EPROTO;
4834 	}
4835 
4836 	for_each_cea_db(cea, i, start, end) {
4837 		const u8 *db = &cea[i];
4838 
4839 		if (cea_db_tag(db) == AUDIO_BLOCK) {
4840 			int j;
4841 
4842 			dbl = cea_db_payload_len(db);
4843 
4844 			count = dbl / 3; /* SAD is 3B */
4845 			*sads = kcalloc(count, sizeof(**sads), GFP_KERNEL);
4846 			if (!*sads)
4847 				return -ENOMEM;
4848 			for (j = 0; j < count; j++) {
4849 				const u8 *sad = &db[1 + j * 3];
4850 
4851 				(*sads)[j].format = (sad[0] & 0x78) >> 3;
4852 				(*sads)[j].channels = sad[0] & 0x7;
4853 				(*sads)[j].freq = sad[1] & 0x7F;
4854 				(*sads)[j].byte2 = sad[2];
4855 			}
4856 			break;
4857 		}
4858 	}
4859 
4860 	return count;
4861 }
4862 EXPORT_SYMBOL(drm_edid_to_sad);
4863 
4864 /**
4865  * drm_edid_to_speaker_allocation - extracts Speaker Allocation Data Blocks from EDID
4866  * @edid: EDID to parse
4867  * @sadb: pointer to the speaker block
4868  *
4869  * Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
4870  *
4871  * Note: The returned pointer needs to be freed using kfree().
4872  *
4873  * Return: The number of found Speaker Allocation Blocks or negative number on
4874  * error.
4875  */
4876 int drm_edid_to_speaker_allocation(const struct edid *edid, u8 **sadb)
4877 {
4878 	int count = 0;
4879 	int i, start, end, dbl;
4880 	const u8 *cea;
4881 
4882 	cea = drm_find_cea_extension(edid);
4883 	if (!cea) {
4884 		DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
4885 		return 0;
4886 	}
4887 
4888 	if (cea_revision(cea) < 3) {
4889 		DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
4890 		return 0;
4891 	}
4892 
4893 	if (cea_db_offsets(cea, &start, &end)) {
4894 		DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
4895 		return -EPROTO;
4896 	}
4897 
4898 	for_each_cea_db(cea, i, start, end) {
4899 		const u8 *db = &cea[i];
4900 
4901 		if (cea_db_tag(db) == SPEAKER_BLOCK) {
4902 			dbl = cea_db_payload_len(db);
4903 
4904 			/* Speaker Allocation Data Block */
4905 			if (dbl == 3) {
4906 				*sadb = kmemdup(&db[1], dbl, GFP_KERNEL);
4907 				if (!*sadb)
4908 					return -ENOMEM;
4909 				count = dbl;
4910 				break;
4911 			}
4912 		}
4913 	}
4914 
4915 	return count;
4916 }
4917 EXPORT_SYMBOL(drm_edid_to_speaker_allocation);
4918 
4919 /**
4920  * drm_av_sync_delay - compute the HDMI/DP sink audio-video sync delay
4921  * @connector: connector associated with the HDMI/DP sink
4922  * @mode: the display mode
4923  *
4924  * Return: The HDMI/DP sink's audio-video sync delay in milliseconds or 0 if
4925  * the sink doesn't support audio or video.
4926  */
4927 int drm_av_sync_delay(struct drm_connector *connector,
4928 		      const struct drm_display_mode *mode)
4929 {
4930 	int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
4931 	int a, v;
4932 
4933 	if (!connector->latency_present[0])
4934 		return 0;
4935 	if (!connector->latency_present[1])
4936 		i = 0;
4937 
4938 	a = connector->audio_latency[i];
4939 	v = connector->video_latency[i];
4940 
4941 	/*
4942 	 * HDMI/DP sink doesn't support audio or video?
4943 	 */
4944 	if (a == 255 || v == 255)
4945 		return 0;
4946 
4947 	/*
4948 	 * Convert raw EDID values to millisecond.
4949 	 * Treat unknown latency as 0ms.
4950 	 */
4951 	if (a)
4952 		a = min(2 * (a - 1), 500);
4953 	if (v)
4954 		v = min(2 * (v - 1), 500);
4955 
4956 	return max(v - a, 0);
4957 }
4958 EXPORT_SYMBOL(drm_av_sync_delay);
4959 
4960 /**
4961  * drm_detect_hdmi_monitor - detect whether monitor is HDMI
4962  * @edid: monitor EDID information
4963  *
4964  * Parse the CEA extension according to CEA-861-B.
4965  *
4966  * Drivers that have added the modes parsed from EDID to drm_display_info
4967  * should use &drm_display_info.is_hdmi instead of calling this function.
4968  *
4969  * Return: True if the monitor is HDMI, false if not or unknown.
4970  */
4971 bool drm_detect_hdmi_monitor(const struct edid *edid)
4972 {
4973 	const u8 *edid_ext;
4974 	int i;
4975 	int start_offset, end_offset;
4976 
4977 	edid_ext = drm_find_cea_extension(edid);
4978 	if (!edid_ext)
4979 		return false;
4980 
4981 	if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
4982 		return false;
4983 
4984 	/*
4985 	 * Because HDMI identifier is in Vendor Specific Block,
4986 	 * search it from all data blocks of CEA extension.
4987 	 */
4988 	for_each_cea_db(edid_ext, i, start_offset, end_offset) {
4989 		if (cea_db_is_hdmi_vsdb(&edid_ext[i]))
4990 			return true;
4991 	}
4992 
4993 	return false;
4994 }
4995 EXPORT_SYMBOL(drm_detect_hdmi_monitor);
4996 
4997 /**
4998  * drm_detect_monitor_audio - check monitor audio capability
4999  * @edid: EDID block to scan
5000  *
5001  * Monitor should have CEA extension block.
5002  * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
5003  * audio' only. If there is any audio extension block and supported
5004  * audio format, assume at least 'basic audio' support, even if 'basic
5005  * audio' is not defined in EDID.
5006  *
5007  * Return: True if the monitor supports audio, false otherwise.
5008  */
5009 bool drm_detect_monitor_audio(const struct edid *edid)
5010 {
5011 	const u8 *edid_ext;
5012 	int i, j;
5013 	bool has_audio = false;
5014 	int start_offset, end_offset;
5015 
5016 	edid_ext = drm_find_cea_extension(edid);
5017 	if (!edid_ext)
5018 		goto end;
5019 
5020 	has_audio = (edid_ext[0] == CEA_EXT &&
5021 		    (edid_ext[3] & EDID_BASIC_AUDIO) != 0);
5022 
5023 	if (has_audio) {
5024 		DRM_DEBUG_KMS("Monitor has basic audio support\n");
5025 		goto end;
5026 	}
5027 
5028 	if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
5029 		goto end;
5030 
5031 	for_each_cea_db(edid_ext, i, start_offset, end_offset) {
5032 		if (cea_db_tag(&edid_ext[i]) == AUDIO_BLOCK) {
5033 			has_audio = true;
5034 			for (j = 1; j < cea_db_payload_len(&edid_ext[i]) + 1; j += 3)
5035 				DRM_DEBUG_KMS("CEA audio format %d\n",
5036 					      (edid_ext[i + j] >> 3) & 0xf);
5037 			goto end;
5038 		}
5039 	}
5040 end:
5041 	return has_audio;
5042 }
5043 EXPORT_SYMBOL(drm_detect_monitor_audio);
5044 
5045 
5046 /**
5047  * drm_default_rgb_quant_range - default RGB quantization range
5048  * @mode: display mode
5049  *
5050  * Determine the default RGB quantization range for the mode,
5051  * as specified in CEA-861.
5052  *
5053  * Return: The default RGB quantization range for the mode
5054  */
5055 enum hdmi_quantization_range
5056 drm_default_rgb_quant_range(const struct drm_display_mode *mode)
5057 {
5058 	/* All CEA modes other than VIC 1 use limited quantization range. */
5059 	return drm_match_cea_mode(mode) > 1 ?
5060 		HDMI_QUANTIZATION_RANGE_LIMITED :
5061 		HDMI_QUANTIZATION_RANGE_FULL;
5062 }
5063 EXPORT_SYMBOL(drm_default_rgb_quant_range);
5064 
5065 static void drm_parse_vcdb(struct drm_connector *connector, const u8 *db)
5066 {
5067 	struct drm_display_info *info = &connector->display_info;
5068 
5069 	DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", db[2]);
5070 
5071 	if (db[2] & EDID_CEA_VCDB_QS)
5072 		info->rgb_quant_range_selectable = true;
5073 }
5074 
5075 static
5076 void drm_get_max_frl_rate(int max_frl_rate, u8 *max_lanes, u8 *max_rate_per_lane)
5077 {
5078 	switch (max_frl_rate) {
5079 	case 1:
5080 		*max_lanes = 3;
5081 		*max_rate_per_lane = 3;
5082 		break;
5083 	case 2:
5084 		*max_lanes = 3;
5085 		*max_rate_per_lane = 6;
5086 		break;
5087 	case 3:
5088 		*max_lanes = 4;
5089 		*max_rate_per_lane = 6;
5090 		break;
5091 	case 4:
5092 		*max_lanes = 4;
5093 		*max_rate_per_lane = 8;
5094 		break;
5095 	case 5:
5096 		*max_lanes = 4;
5097 		*max_rate_per_lane = 10;
5098 		break;
5099 	case 6:
5100 		*max_lanes = 4;
5101 		*max_rate_per_lane = 12;
5102 		break;
5103 	case 0:
5104 	default:
5105 		*max_lanes = 0;
5106 		*max_rate_per_lane = 0;
5107 	}
5108 }
5109 
5110 static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
5111 					       const u8 *db)
5112 {
5113 	u8 dc_mask;
5114 	struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
5115 
5116 	dc_mask = db[7] & DRM_EDID_YCBCR420_DC_MASK;
5117 	hdmi->y420_dc_modes = dc_mask;
5118 }
5119 
5120 static void drm_parse_hdmi_forum_vsdb(struct drm_connector *connector,
5121 				 const u8 *hf_vsdb)
5122 {
5123 	struct drm_display_info *display = &connector->display_info;
5124 	struct drm_hdmi_info *hdmi = &display->hdmi;
5125 
5126 	display->has_hdmi_infoframe = true;
5127 
5128 	if (hf_vsdb[6] & 0x80) {
5129 		hdmi->scdc.supported = true;
5130 		if (hf_vsdb[6] & 0x40)
5131 			hdmi->scdc.read_request = true;
5132 	}
5133 
5134 	/*
5135 	 * All HDMI 2.0 monitors must support scrambling at rates > 340 MHz.
5136 	 * And as per the spec, three factors confirm this:
5137 	 * * Availability of a HF-VSDB block in EDID (check)
5138 	 * * Non zero Max_TMDS_Char_Rate filed in HF-VSDB (let's check)
5139 	 * * SCDC support available (let's check)
5140 	 * Lets check it out.
5141 	 */
5142 
5143 	if (hf_vsdb[5]) {
5144 		/* max clock is 5000 KHz times block value */
5145 		u32 max_tmds_clock = hf_vsdb[5] * 5000;
5146 		struct drm_scdc *scdc = &hdmi->scdc;
5147 
5148 		if (max_tmds_clock > 340000) {
5149 			display->max_tmds_clock = max_tmds_clock;
5150 			DRM_DEBUG_KMS("HF-VSDB: max TMDS clock %d kHz\n",
5151 				display->max_tmds_clock);
5152 		}
5153 
5154 		if (scdc->supported) {
5155 			scdc->scrambling.supported = true;
5156 
5157 			/* Few sinks support scrambling for clocks < 340M */
5158 			if ((hf_vsdb[6] & 0x8))
5159 				scdc->scrambling.low_rates = true;
5160 		}
5161 	}
5162 
5163 	if (hf_vsdb[7]) {
5164 		u8 max_frl_rate;
5165 		u8 dsc_max_frl_rate;
5166 		u8 dsc_max_slices;
5167 		struct drm_hdmi_dsc_cap *hdmi_dsc = &hdmi->dsc_cap;
5168 
5169 		DRM_DEBUG_KMS("hdmi_21 sink detected. parsing edid\n");
5170 		max_frl_rate = (hf_vsdb[7] & DRM_EDID_MAX_FRL_RATE_MASK) >> 4;
5171 		drm_get_max_frl_rate(max_frl_rate, &hdmi->max_lanes,
5172 				     &hdmi->max_frl_rate_per_lane);
5173 		hdmi_dsc->v_1p2 = hf_vsdb[11] & DRM_EDID_DSC_1P2;
5174 
5175 		if (hdmi_dsc->v_1p2) {
5176 			hdmi_dsc->native_420 = hf_vsdb[11] & DRM_EDID_DSC_NATIVE_420;
5177 			hdmi_dsc->all_bpp = hf_vsdb[11] & DRM_EDID_DSC_ALL_BPP;
5178 
5179 			if (hf_vsdb[11] & DRM_EDID_DSC_16BPC)
5180 				hdmi_dsc->bpc_supported = 16;
5181 			else if (hf_vsdb[11] & DRM_EDID_DSC_12BPC)
5182 				hdmi_dsc->bpc_supported = 12;
5183 			else if (hf_vsdb[11] & DRM_EDID_DSC_10BPC)
5184 				hdmi_dsc->bpc_supported = 10;
5185 			else
5186 				hdmi_dsc->bpc_supported = 0;
5187 
5188 			dsc_max_frl_rate = (hf_vsdb[12] & DRM_EDID_DSC_MAX_FRL_RATE_MASK) >> 4;
5189 			drm_get_max_frl_rate(dsc_max_frl_rate, &hdmi_dsc->max_lanes,
5190 					     &hdmi_dsc->max_frl_rate_per_lane);
5191 			hdmi_dsc->total_chunk_kbytes = hf_vsdb[13] & DRM_EDID_DSC_TOTAL_CHUNK_KBYTES;
5192 
5193 			dsc_max_slices = hf_vsdb[12] & DRM_EDID_DSC_MAX_SLICES;
5194 			switch (dsc_max_slices) {
5195 			case 1:
5196 				hdmi_dsc->max_slices = 1;
5197 				hdmi_dsc->clk_per_slice = 340;
5198 				break;
5199 			case 2:
5200 				hdmi_dsc->max_slices = 2;
5201 				hdmi_dsc->clk_per_slice = 340;
5202 				break;
5203 			case 3:
5204 				hdmi_dsc->max_slices = 4;
5205 				hdmi_dsc->clk_per_slice = 340;
5206 				break;
5207 			case 4:
5208 				hdmi_dsc->max_slices = 8;
5209 				hdmi_dsc->clk_per_slice = 340;
5210 				break;
5211 			case 5:
5212 				hdmi_dsc->max_slices = 8;
5213 				hdmi_dsc->clk_per_slice = 400;
5214 				break;
5215 			case 6:
5216 				hdmi_dsc->max_slices = 12;
5217 				hdmi_dsc->clk_per_slice = 400;
5218 				break;
5219 			case 7:
5220 				hdmi_dsc->max_slices = 16;
5221 				hdmi_dsc->clk_per_slice = 400;
5222 				break;
5223 			case 0:
5224 			default:
5225 				hdmi_dsc->max_slices = 0;
5226 				hdmi_dsc->clk_per_slice = 0;
5227 			}
5228 		}
5229 	}
5230 
5231 	drm_parse_ycbcr420_deep_color_info(connector, hf_vsdb);
5232 }
5233 
5234 static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
5235 					   const u8 *hdmi)
5236 {
5237 	struct drm_display_info *info = &connector->display_info;
5238 	unsigned int dc_bpc = 0;
5239 
5240 	/* HDMI supports at least 8 bpc */
5241 	info->bpc = 8;
5242 
5243 	if (cea_db_payload_len(hdmi) < 6)
5244 		return;
5245 
5246 	if (hdmi[6] & DRM_EDID_HDMI_DC_30) {
5247 		dc_bpc = 10;
5248 		info->edid_hdmi_rgb444_dc_modes |= DRM_EDID_HDMI_DC_30;
5249 		DRM_DEBUG("%s: HDMI sink does deep color 30.\n",
5250 			  connector->name);
5251 	}
5252 
5253 	if (hdmi[6] & DRM_EDID_HDMI_DC_36) {
5254 		dc_bpc = 12;
5255 		info->edid_hdmi_rgb444_dc_modes |= DRM_EDID_HDMI_DC_36;
5256 		DRM_DEBUG("%s: HDMI sink does deep color 36.\n",
5257 			  connector->name);
5258 	}
5259 
5260 	if (hdmi[6] & DRM_EDID_HDMI_DC_48) {
5261 		dc_bpc = 16;
5262 		info->edid_hdmi_rgb444_dc_modes |= DRM_EDID_HDMI_DC_48;
5263 		DRM_DEBUG("%s: HDMI sink does deep color 48.\n",
5264 			  connector->name);
5265 	}
5266 
5267 	if (dc_bpc == 0) {
5268 		DRM_DEBUG("%s: No deep color support on this HDMI sink.\n",
5269 			  connector->name);
5270 		return;
5271 	}
5272 
5273 	DRM_DEBUG("%s: Assigning HDMI sink color depth as %d bpc.\n",
5274 		  connector->name, dc_bpc);
5275 	info->bpc = dc_bpc;
5276 
5277 	/* YCRCB444 is optional according to spec. */
5278 	if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
5279 		info->edid_hdmi_ycbcr444_dc_modes = info->edid_hdmi_rgb444_dc_modes;
5280 		DRM_DEBUG("%s: HDMI sink does YCRCB444 in deep color.\n",
5281 			  connector->name);
5282 	}
5283 
5284 	/*
5285 	 * Spec says that if any deep color mode is supported at all,
5286 	 * then deep color 36 bit must be supported.
5287 	 */
5288 	if (!(hdmi[6] & DRM_EDID_HDMI_DC_36)) {
5289 		DRM_DEBUG("%s: HDMI sink should do DC_36, but does not!\n",
5290 			  connector->name);
5291 	}
5292 }
5293 
5294 static void
5295 drm_parse_hdmi_vsdb_video(struct drm_connector *connector, const u8 *db)
5296 {
5297 	struct drm_display_info *info = &connector->display_info;
5298 	u8 len = cea_db_payload_len(db);
5299 
5300 	info->is_hdmi = true;
5301 
5302 	if (len >= 6)
5303 		info->dvi_dual = db[6] & 1;
5304 	if (len >= 7)
5305 		info->max_tmds_clock = db[7] * 5000;
5306 
5307 	DRM_DEBUG_KMS("HDMI: DVI dual %d, "
5308 		      "max TMDS clock %d kHz\n",
5309 		      info->dvi_dual,
5310 		      info->max_tmds_clock);
5311 
5312 	drm_parse_hdmi_deep_color_info(connector, db);
5313 }
5314 
5315 /*
5316  * See EDID extension for head-mounted and specialized monitors, specified at:
5317  * https://docs.microsoft.com/en-us/windows-hardware/drivers/display/specialized-monitors-edid-extension
5318  */
5319 static void drm_parse_microsoft_vsdb(struct drm_connector *connector,
5320 				     const u8 *db)
5321 {
5322 	struct drm_display_info *info = &connector->display_info;
5323 	u8 version = db[4];
5324 	bool desktop_usage = db[5] & BIT(6);
5325 
5326 	/* Version 1 and 2 for HMDs, version 3 flags desktop usage explicitly */
5327 	if (version == 1 || version == 2 || (version == 3 && !desktop_usage))
5328 		info->non_desktop = true;
5329 
5330 	drm_dbg_kms(connector->dev, "HMD or specialized display VSDB version %u: 0x%02x\n",
5331 		    version, db[5]);
5332 }
5333 
5334 static void drm_parse_cea_ext(struct drm_connector *connector,
5335 			      const struct edid *edid)
5336 {
5337 	struct drm_display_info *info = &connector->display_info;
5338 	const u8 *edid_ext;
5339 	int i, start, end;
5340 
5341 	edid_ext = drm_find_cea_extension(edid);
5342 	if (!edid_ext)
5343 		return;
5344 
5345 	info->cea_rev = edid_ext[1];
5346 
5347 	/* The existence of a CEA block should imply RGB support */
5348 	info->color_formats = DRM_COLOR_FORMAT_RGB444;
5349 
5350 	/* CTA DisplayID Data Block does not have byte #3 */
5351 	if (edid_ext[0] == CEA_EXT) {
5352 		if (edid_ext[3] & EDID_CEA_YCRCB444)
5353 			info->color_formats |= DRM_COLOR_FORMAT_YCBCR444;
5354 		if (edid_ext[3] & EDID_CEA_YCRCB422)
5355 			info->color_formats |= DRM_COLOR_FORMAT_YCBCR422;
5356 	}
5357 
5358 	if (cea_db_offsets(edid_ext, &start, &end))
5359 		return;
5360 
5361 	for_each_cea_db(edid_ext, i, start, end) {
5362 		const u8 *db = &edid_ext[i];
5363 
5364 		if (cea_db_is_hdmi_vsdb(db))
5365 			drm_parse_hdmi_vsdb_video(connector, db);
5366 		if (cea_db_is_hdmi_forum_vsdb(db))
5367 			drm_parse_hdmi_forum_vsdb(connector, db);
5368 		if (cea_db_is_microsoft_vsdb(db))
5369 			drm_parse_microsoft_vsdb(connector, db);
5370 		if (cea_db_is_y420cmdb(db))
5371 			drm_parse_y420cmdb_bitmap(connector, db);
5372 		if (cea_db_is_vcdb(db))
5373 			drm_parse_vcdb(connector, db);
5374 		if (cea_db_is_hdmi_hdr_metadata_block(db))
5375 			drm_parse_hdr_metadata_block(connector, db);
5376 	}
5377 }
5378 
5379 static
5380 void get_monitor_range(const struct detailed_timing *timing,
5381 		       void *info_monitor_range)
5382 {
5383 	struct drm_monitor_range_info *monitor_range = info_monitor_range;
5384 	const struct detailed_non_pixel *data = &timing->data.other_data;
5385 	const struct detailed_data_monitor_range *range = &data->data.range;
5386 
5387 	if (!is_display_descriptor(timing, EDID_DETAIL_MONITOR_RANGE))
5388 		return;
5389 
5390 	/*
5391 	 * Check for flag range limits only. If flag == 1 then
5392 	 * no additional timing information provided.
5393 	 * Default GTF, GTF Secondary curve and CVT are not
5394 	 * supported
5395 	 */
5396 	if (range->flags != DRM_EDID_RANGE_LIMITS_ONLY_FLAG)
5397 		return;
5398 
5399 	monitor_range->min_vfreq = range->min_vfreq;
5400 	monitor_range->max_vfreq = range->max_vfreq;
5401 }
5402 
5403 static
5404 void drm_get_monitor_range(struct drm_connector *connector,
5405 			   const struct edid *edid)
5406 {
5407 	struct drm_display_info *info = &connector->display_info;
5408 
5409 	if (!version_greater(edid, 1, 1))
5410 		return;
5411 
5412 	drm_for_each_detailed_block(edid, get_monitor_range,
5413 				    &info->monitor_range);
5414 
5415 	DRM_DEBUG_KMS("Supported Monitor Refresh rate range is %d Hz - %d Hz\n",
5416 		      info->monitor_range.min_vfreq,
5417 		      info->monitor_range.max_vfreq);
5418 }
5419 
5420 static void drm_parse_vesa_mso_data(struct drm_connector *connector,
5421 				    const struct displayid_block *block)
5422 {
5423 	struct displayid_vesa_vendor_specific_block *vesa =
5424 		(struct displayid_vesa_vendor_specific_block *)block;
5425 	struct drm_display_info *info = &connector->display_info;
5426 
5427 	if (block->num_bytes < 3) {
5428 		drm_dbg_kms(connector->dev, "Unexpected vendor block size %u\n",
5429 			    block->num_bytes);
5430 		return;
5431 	}
5432 
5433 	if (oui(vesa->oui[0], vesa->oui[1], vesa->oui[2]) != VESA_IEEE_OUI)
5434 		return;
5435 
5436 	if (sizeof(*vesa) != sizeof(*block) + block->num_bytes) {
5437 		drm_dbg_kms(connector->dev, "Unexpected VESA vendor block size\n");
5438 		return;
5439 	}
5440 
5441 	switch (FIELD_GET(DISPLAYID_VESA_MSO_MODE, vesa->mso)) {
5442 	default:
5443 		drm_dbg_kms(connector->dev, "Reserved MSO mode value\n");
5444 		fallthrough;
5445 	case 0:
5446 		info->mso_stream_count = 0;
5447 		break;
5448 	case 1:
5449 		info->mso_stream_count = 2; /* 2 or 4 links */
5450 		break;
5451 	case 2:
5452 		info->mso_stream_count = 4; /* 4 links */
5453 		break;
5454 	}
5455 
5456 	if (!info->mso_stream_count) {
5457 		info->mso_pixel_overlap = 0;
5458 		return;
5459 	}
5460 
5461 	info->mso_pixel_overlap = FIELD_GET(DISPLAYID_VESA_MSO_OVERLAP, vesa->mso);
5462 	if (info->mso_pixel_overlap > 8) {
5463 		drm_dbg_kms(connector->dev, "Reserved MSO pixel overlap value %u\n",
5464 			    info->mso_pixel_overlap);
5465 		info->mso_pixel_overlap = 8;
5466 	}
5467 
5468 	drm_dbg_kms(connector->dev, "MSO stream count %u, pixel overlap %u\n",
5469 		    info->mso_stream_count, info->mso_pixel_overlap);
5470 }
5471 
5472 static void drm_update_mso(struct drm_connector *connector, const struct edid *edid)
5473 {
5474 	const struct displayid_block *block;
5475 	struct displayid_iter iter;
5476 
5477 	displayid_iter_edid_begin(edid, &iter);
5478 	displayid_iter_for_each(block, &iter) {
5479 		if (block->tag == DATA_BLOCK_2_VENDOR_SPECIFIC)
5480 			drm_parse_vesa_mso_data(connector, block);
5481 	}
5482 	displayid_iter_end(&iter);
5483 }
5484 
5485 /* A connector has no EDID information, so we've got no EDID to compute quirks from. Reset
5486  * all of the values which would have been set from EDID
5487  */
5488 void
5489 drm_reset_display_info(struct drm_connector *connector)
5490 {
5491 	struct drm_display_info *info = &connector->display_info;
5492 
5493 	info->width_mm = 0;
5494 	info->height_mm = 0;
5495 
5496 	info->bpc = 0;
5497 	info->color_formats = 0;
5498 	info->cea_rev = 0;
5499 	info->max_tmds_clock = 0;
5500 	info->dvi_dual = false;
5501 	info->is_hdmi = false;
5502 	info->has_hdmi_infoframe = false;
5503 	info->rgb_quant_range_selectable = false;
5504 	memset(&info->hdmi, 0, sizeof(info->hdmi));
5505 
5506 	info->edid_hdmi_rgb444_dc_modes = 0;
5507 	info->edid_hdmi_ycbcr444_dc_modes = 0;
5508 
5509 	info->non_desktop = 0;
5510 	memset(&info->monitor_range, 0, sizeof(info->monitor_range));
5511 
5512 	info->mso_stream_count = 0;
5513 	info->mso_pixel_overlap = 0;
5514 }
5515 
5516 u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid)
5517 {
5518 	struct drm_display_info *info = &connector->display_info;
5519 
5520 	u32 quirks = edid_get_quirks(edid);
5521 
5522 	drm_reset_display_info(connector);
5523 
5524 	info->width_mm = edid->width_cm * 10;
5525 	info->height_mm = edid->height_cm * 10;
5526 
5527 	drm_get_monitor_range(connector, edid);
5528 
5529 	if (edid->revision < 3)
5530 		goto out;
5531 
5532 	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
5533 		goto out;
5534 
5535 	info->color_formats |= DRM_COLOR_FORMAT_RGB444;
5536 	drm_parse_cea_ext(connector, edid);
5537 
5538 	/*
5539 	 * Digital sink with "DFP 1.x compliant TMDS" according to EDID 1.3?
5540 	 *
5541 	 * For such displays, the DFP spec 1.0, section 3.10 "EDID support"
5542 	 * tells us to assume 8 bpc color depth if the EDID doesn't have
5543 	 * extensions which tell otherwise.
5544 	 */
5545 	if (info->bpc == 0 && edid->revision == 3 &&
5546 	    edid->input & DRM_EDID_DIGITAL_DFP_1_X) {
5547 		info->bpc = 8;
5548 		DRM_DEBUG("%s: Assigning DFP sink color depth as %d bpc.\n",
5549 			  connector->name, info->bpc);
5550 	}
5551 
5552 	/* Only defined for 1.4 with digital displays */
5553 	if (edid->revision < 4)
5554 		goto out;
5555 
5556 	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
5557 	case DRM_EDID_DIGITAL_DEPTH_6:
5558 		info->bpc = 6;
5559 		break;
5560 	case DRM_EDID_DIGITAL_DEPTH_8:
5561 		info->bpc = 8;
5562 		break;
5563 	case DRM_EDID_DIGITAL_DEPTH_10:
5564 		info->bpc = 10;
5565 		break;
5566 	case DRM_EDID_DIGITAL_DEPTH_12:
5567 		info->bpc = 12;
5568 		break;
5569 	case DRM_EDID_DIGITAL_DEPTH_14:
5570 		info->bpc = 14;
5571 		break;
5572 	case DRM_EDID_DIGITAL_DEPTH_16:
5573 		info->bpc = 16;
5574 		break;
5575 	case DRM_EDID_DIGITAL_DEPTH_UNDEF:
5576 	default:
5577 		info->bpc = 0;
5578 		break;
5579 	}
5580 
5581 	DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
5582 			  connector->name, info->bpc);
5583 
5584 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
5585 		info->color_formats |= DRM_COLOR_FORMAT_YCBCR444;
5586 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
5587 		info->color_formats |= DRM_COLOR_FORMAT_YCBCR422;
5588 
5589 	drm_update_mso(connector, edid);
5590 
5591 out:
5592 	if (quirks & EDID_QUIRK_NON_DESKTOP) {
5593 		drm_dbg_kms(connector->dev, "Non-desktop display%s\n",
5594 			    info->non_desktop ? " (redundant quirk)" : "");
5595 		info->non_desktop = true;
5596 	}
5597 
5598 	return quirks;
5599 }
5600 
5601 static struct drm_display_mode *drm_mode_displayid_detailed(struct drm_device *dev,
5602 							    struct displayid_detailed_timings_1 *timings,
5603 							    bool type_7)
5604 {
5605 	struct drm_display_mode *mode;
5606 	unsigned pixel_clock = (timings->pixel_clock[0] |
5607 				(timings->pixel_clock[1] << 8) |
5608 				(timings->pixel_clock[2] << 16)) + 1;
5609 	unsigned hactive = (timings->hactive[0] | timings->hactive[1] << 8) + 1;
5610 	unsigned hblank = (timings->hblank[0] | timings->hblank[1] << 8) + 1;
5611 	unsigned hsync = (timings->hsync[0] | (timings->hsync[1] & 0x7f) << 8) + 1;
5612 	unsigned hsync_width = (timings->hsw[0] | timings->hsw[1] << 8) + 1;
5613 	unsigned vactive = (timings->vactive[0] | timings->vactive[1] << 8) + 1;
5614 	unsigned vblank = (timings->vblank[0] | timings->vblank[1] << 8) + 1;
5615 	unsigned vsync = (timings->vsync[0] | (timings->vsync[1] & 0x7f) << 8) + 1;
5616 	unsigned vsync_width = (timings->vsw[0] | timings->vsw[1] << 8) + 1;
5617 	bool hsync_positive = (timings->hsync[1] >> 7) & 0x1;
5618 	bool vsync_positive = (timings->vsync[1] >> 7) & 0x1;
5619 
5620 	mode = drm_mode_create(dev);
5621 	if (!mode)
5622 		return NULL;
5623 
5624 	/* resolution is kHz for type VII, and 10 kHz for type I */
5625 	mode->clock = type_7 ? pixel_clock : pixel_clock * 10;
5626 	mode->hdisplay = hactive;
5627 	mode->hsync_start = mode->hdisplay + hsync;
5628 	mode->hsync_end = mode->hsync_start + hsync_width;
5629 	mode->htotal = mode->hdisplay + hblank;
5630 
5631 	mode->vdisplay = vactive;
5632 	mode->vsync_start = mode->vdisplay + vsync;
5633 	mode->vsync_end = mode->vsync_start + vsync_width;
5634 	mode->vtotal = mode->vdisplay + vblank;
5635 
5636 	mode->flags = 0;
5637 	mode->flags |= hsync_positive ? DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
5638 	mode->flags |= vsync_positive ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
5639 	mode->type = DRM_MODE_TYPE_DRIVER;
5640 
5641 	if (timings->flags & 0x80)
5642 		mode->type |= DRM_MODE_TYPE_PREFERRED;
5643 	drm_mode_set_name(mode);
5644 
5645 	return mode;
5646 }
5647 
5648 static int add_displayid_detailed_1_modes(struct drm_connector *connector,
5649 					  const struct displayid_block *block)
5650 {
5651 	struct displayid_detailed_timing_block *det = (struct displayid_detailed_timing_block *)block;
5652 	int i;
5653 	int num_timings;
5654 	struct drm_display_mode *newmode;
5655 	int num_modes = 0;
5656 	bool type_7 = block->tag == DATA_BLOCK_2_TYPE_7_DETAILED_TIMING;
5657 	/* blocks must be multiple of 20 bytes length */
5658 	if (block->num_bytes % 20)
5659 		return 0;
5660 
5661 	num_timings = block->num_bytes / 20;
5662 	for (i = 0; i < num_timings; i++) {
5663 		struct displayid_detailed_timings_1 *timings = &det->timings[i];
5664 
5665 		newmode = drm_mode_displayid_detailed(connector->dev, timings, type_7);
5666 		if (!newmode)
5667 			continue;
5668 
5669 		drm_mode_probed_add(connector, newmode);
5670 		num_modes++;
5671 	}
5672 	return num_modes;
5673 }
5674 
5675 static int add_displayid_detailed_modes(struct drm_connector *connector,
5676 					const struct edid *edid)
5677 {
5678 	const struct displayid_block *block;
5679 	struct displayid_iter iter;
5680 	int num_modes = 0;
5681 
5682 	displayid_iter_edid_begin(edid, &iter);
5683 	displayid_iter_for_each(block, &iter) {
5684 		if (block->tag == DATA_BLOCK_TYPE_1_DETAILED_TIMING ||
5685 		    block->tag == DATA_BLOCK_2_TYPE_7_DETAILED_TIMING)
5686 			num_modes += add_displayid_detailed_1_modes(connector, block);
5687 	}
5688 	displayid_iter_end(&iter);
5689 
5690 	return num_modes;
5691 }
5692 
5693 static int drm_edid_connector_update(struct drm_connector *connector,
5694 				     const struct edid *edid)
5695 {
5696 	int num_modes = 0;
5697 	u32 quirks;
5698 
5699 	if (edid == NULL) {
5700 		clear_eld(connector);
5701 		return 0;
5702 	}
5703 
5704 	drm_edid_to_eld(connector, edid);
5705 
5706 	/*
5707 	 * CEA-861-F adds ycbcr capability map block, for HDMI 2.0 sinks.
5708 	 * To avoid multiple parsing of same block, lets parse that map
5709 	 * from sink info, before parsing CEA modes.
5710 	 */
5711 	quirks = drm_add_display_info(connector, edid);
5712 
5713 	/*
5714 	 * EDID spec says modes should be preferred in this order:
5715 	 * - preferred detailed mode
5716 	 * - other detailed modes from base block
5717 	 * - detailed modes from extension blocks
5718 	 * - CVT 3-byte code modes
5719 	 * - standard timing codes
5720 	 * - established timing codes
5721 	 * - modes inferred from GTF or CVT range information
5722 	 *
5723 	 * We get this pretty much right.
5724 	 *
5725 	 * XXX order for additional mode types in extension blocks?
5726 	 */
5727 	num_modes += add_detailed_modes(connector, edid, quirks);
5728 	num_modes += add_cvt_modes(connector, edid);
5729 	num_modes += add_standard_modes(connector, edid);
5730 	num_modes += add_established_modes(connector, edid);
5731 	num_modes += add_cea_modes(connector, edid);
5732 	num_modes += add_alternate_cea_modes(connector, edid);
5733 	num_modes += add_displayid_detailed_modes(connector, edid);
5734 	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
5735 		num_modes += add_inferred_modes(connector, edid);
5736 
5737 	if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
5738 		edid_fixup_preferred(connector, quirks);
5739 
5740 	if (quirks & EDID_QUIRK_FORCE_6BPC)
5741 		connector->display_info.bpc = 6;
5742 
5743 	if (quirks & EDID_QUIRK_FORCE_8BPC)
5744 		connector->display_info.bpc = 8;
5745 
5746 	if (quirks & EDID_QUIRK_FORCE_10BPC)
5747 		connector->display_info.bpc = 10;
5748 
5749 	if (quirks & EDID_QUIRK_FORCE_12BPC)
5750 		connector->display_info.bpc = 12;
5751 
5752 	return num_modes;
5753 }
5754 
5755 /**
5756  * drm_add_edid_modes - add modes from EDID data, if available
5757  * @connector: connector we're probing
5758  * @edid: EDID data
5759  *
5760  * Add the specified modes to the connector's mode list. Also fills out the
5761  * &drm_display_info structure and ELD in @connector with any information which
5762  * can be derived from the edid.
5763  *
5764  * Return: The number of modes added or 0 if we couldn't find any.
5765  */
5766 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
5767 {
5768 	if (edid && !drm_edid_is_valid(edid)) {
5769 		drm_warn(connector->dev, "%s: EDID invalid.\n",
5770 			 connector->name);
5771 		edid = NULL;
5772 	}
5773 
5774 	return drm_edid_connector_update(connector, edid);
5775 }
5776 EXPORT_SYMBOL(drm_add_edid_modes);
5777 
5778 /**
5779  * drm_add_modes_noedid - add modes for the connectors without EDID
5780  * @connector: connector we're probing
5781  * @hdisplay: the horizontal display limit
5782  * @vdisplay: the vertical display limit
5783  *
5784  * Add the specified modes to the connector's mode list. Only when the
5785  * hdisplay/vdisplay is not beyond the given limit, it will be added.
5786  *
5787  * Return: The number of modes added or 0 if we couldn't find any.
5788  */
5789 int drm_add_modes_noedid(struct drm_connector *connector,
5790 			int hdisplay, int vdisplay)
5791 {
5792 	int i, count, num_modes = 0;
5793 	struct drm_display_mode *mode;
5794 	struct drm_device *dev = connector->dev;
5795 
5796 	count = ARRAY_SIZE(drm_dmt_modes);
5797 	if (hdisplay < 0)
5798 		hdisplay = 0;
5799 	if (vdisplay < 0)
5800 		vdisplay = 0;
5801 
5802 	for (i = 0; i < count; i++) {
5803 		const struct drm_display_mode *ptr = &drm_dmt_modes[i];
5804 
5805 		if (hdisplay && vdisplay) {
5806 			/*
5807 			 * Only when two are valid, they will be used to check
5808 			 * whether the mode should be added to the mode list of
5809 			 * the connector.
5810 			 */
5811 			if (ptr->hdisplay > hdisplay ||
5812 					ptr->vdisplay > vdisplay)
5813 				continue;
5814 		}
5815 		if (drm_mode_vrefresh(ptr) > 61)
5816 			continue;
5817 		mode = drm_mode_duplicate(dev, ptr);
5818 		if (mode) {
5819 			drm_mode_probed_add(connector, mode);
5820 			num_modes++;
5821 		}
5822 	}
5823 	return num_modes;
5824 }
5825 EXPORT_SYMBOL(drm_add_modes_noedid);
5826 
5827 /**
5828  * drm_set_preferred_mode - Sets the preferred mode of a connector
5829  * @connector: connector whose mode list should be processed
5830  * @hpref: horizontal resolution of preferred mode
5831  * @vpref: vertical resolution of preferred mode
5832  *
5833  * Marks a mode as preferred if it matches the resolution specified by @hpref
5834  * and @vpref.
5835  */
5836 void drm_set_preferred_mode(struct drm_connector *connector,
5837 			   int hpref, int vpref)
5838 {
5839 	struct drm_display_mode *mode;
5840 
5841 	list_for_each_entry(mode, &connector->probed_modes, head) {
5842 		if (mode->hdisplay == hpref &&
5843 		    mode->vdisplay == vpref)
5844 			mode->type |= DRM_MODE_TYPE_PREFERRED;
5845 	}
5846 }
5847 EXPORT_SYMBOL(drm_set_preferred_mode);
5848 
5849 static bool is_hdmi2_sink(const struct drm_connector *connector)
5850 {
5851 	/*
5852 	 * FIXME: sil-sii8620 doesn't have a connector around when
5853 	 * we need one, so we have to be prepared for a NULL connector.
5854 	 */
5855 	if (!connector)
5856 		return true;
5857 
5858 	return connector->display_info.hdmi.scdc.supported ||
5859 		connector->display_info.color_formats & DRM_COLOR_FORMAT_YCBCR420;
5860 }
5861 
5862 static u8 drm_mode_hdmi_vic(const struct drm_connector *connector,
5863 			    const struct drm_display_mode *mode)
5864 {
5865 	bool has_hdmi_infoframe = connector ?
5866 		connector->display_info.has_hdmi_infoframe : false;
5867 
5868 	if (!has_hdmi_infoframe)
5869 		return 0;
5870 
5871 	/* No HDMI VIC when signalling 3D video format */
5872 	if (mode->flags & DRM_MODE_FLAG_3D_MASK)
5873 		return 0;
5874 
5875 	return drm_match_hdmi_mode(mode);
5876 }
5877 
5878 static u8 drm_mode_cea_vic(const struct drm_connector *connector,
5879 			   const struct drm_display_mode *mode)
5880 {
5881 	u8 vic;
5882 
5883 	/*
5884 	 * HDMI spec says if a mode is found in HDMI 1.4b 4K modes
5885 	 * we should send its VIC in vendor infoframes, else send the
5886 	 * VIC in AVI infoframes. Lets check if this mode is present in
5887 	 * HDMI 1.4b 4K modes
5888 	 */
5889 	if (drm_mode_hdmi_vic(connector, mode))
5890 		return 0;
5891 
5892 	vic = drm_match_cea_mode(mode);
5893 
5894 	/*
5895 	 * HDMI 1.4 VIC range: 1 <= VIC <= 64 (CEA-861-D) but
5896 	 * HDMI 2.0 VIC range: 1 <= VIC <= 107 (CEA-861-F). So we
5897 	 * have to make sure we dont break HDMI 1.4 sinks.
5898 	 */
5899 	if (!is_hdmi2_sink(connector) && vic > 64)
5900 		return 0;
5901 
5902 	return vic;
5903 }
5904 
5905 /**
5906  * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
5907  *                                              data from a DRM display mode
5908  * @frame: HDMI AVI infoframe
5909  * @connector: the connector
5910  * @mode: DRM display mode
5911  *
5912  * Return: 0 on success or a negative error code on failure.
5913  */
5914 int
5915 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
5916 					 const struct drm_connector *connector,
5917 					 const struct drm_display_mode *mode)
5918 {
5919 	enum hdmi_picture_aspect picture_aspect;
5920 	u8 vic, hdmi_vic;
5921 
5922 	if (!frame || !mode)
5923 		return -EINVAL;
5924 
5925 	hdmi_avi_infoframe_init(frame);
5926 
5927 	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
5928 		frame->pixel_repeat = 1;
5929 
5930 	vic = drm_mode_cea_vic(connector, mode);
5931 	hdmi_vic = drm_mode_hdmi_vic(connector, mode);
5932 
5933 	frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
5934 
5935 	/*
5936 	 * As some drivers don't support atomic, we can't use connector state.
5937 	 * So just initialize the frame with default values, just the same way
5938 	 * as it's done with other properties here.
5939 	 */
5940 	frame->content_type = HDMI_CONTENT_TYPE_GRAPHICS;
5941 	frame->itc = 0;
5942 
5943 	/*
5944 	 * Populate picture aspect ratio from either
5945 	 * user input (if specified) or from the CEA/HDMI mode lists.
5946 	 */
5947 	picture_aspect = mode->picture_aspect_ratio;
5948 	if (picture_aspect == HDMI_PICTURE_ASPECT_NONE) {
5949 		if (vic)
5950 			picture_aspect = drm_get_cea_aspect_ratio(vic);
5951 		else if (hdmi_vic)
5952 			picture_aspect = drm_get_hdmi_aspect_ratio(hdmi_vic);
5953 	}
5954 
5955 	/*
5956 	 * The infoframe can't convey anything but none, 4:3
5957 	 * and 16:9, so if the user has asked for anything else
5958 	 * we can only satisfy it by specifying the right VIC.
5959 	 */
5960 	if (picture_aspect > HDMI_PICTURE_ASPECT_16_9) {
5961 		if (vic) {
5962 			if (picture_aspect != drm_get_cea_aspect_ratio(vic))
5963 				return -EINVAL;
5964 		} else if (hdmi_vic) {
5965 			if (picture_aspect != drm_get_hdmi_aspect_ratio(hdmi_vic))
5966 				return -EINVAL;
5967 		} else {
5968 			return -EINVAL;
5969 		}
5970 
5971 		picture_aspect = HDMI_PICTURE_ASPECT_NONE;
5972 	}
5973 
5974 	frame->video_code = vic;
5975 	frame->picture_aspect = picture_aspect;
5976 	frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
5977 	frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
5978 
5979 	return 0;
5980 }
5981 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
5982 
5983 /**
5984  * drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI infoframe
5985  *                                        quantization range information
5986  * @frame: HDMI AVI infoframe
5987  * @connector: the connector
5988  * @mode: DRM display mode
5989  * @rgb_quant_range: RGB quantization range (Q)
5990  */
5991 void
5992 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
5993 				   const struct drm_connector *connector,
5994 				   const struct drm_display_mode *mode,
5995 				   enum hdmi_quantization_range rgb_quant_range)
5996 {
5997 	const struct drm_display_info *info = &connector->display_info;
5998 
5999 	/*
6000 	 * CEA-861:
6001 	 * "A Source shall not send a non-zero Q value that does not correspond
6002 	 *  to the default RGB Quantization Range for the transmitted Picture
6003 	 *  unless the Sink indicates support for the Q bit in a Video
6004 	 *  Capabilities Data Block."
6005 	 *
6006 	 * HDMI 2.0 recommends sending non-zero Q when it does match the
6007 	 * default RGB quantization range for the mode, even when QS=0.
6008 	 */
6009 	if (info->rgb_quant_range_selectable ||
6010 	    rgb_quant_range == drm_default_rgb_quant_range(mode))
6011 		frame->quantization_range = rgb_quant_range;
6012 	else
6013 		frame->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
6014 
6015 	/*
6016 	 * CEA-861-F:
6017 	 * "When transmitting any RGB colorimetry, the Source should set the
6018 	 *  YQ-field to match the RGB Quantization Range being transmitted
6019 	 *  (e.g., when Limited Range RGB, set YQ=0 or when Full Range RGB,
6020 	 *  set YQ=1) and the Sink shall ignore the YQ-field."
6021 	 *
6022 	 * Unfortunate certain sinks (eg. VIZ Model 67/E261VA) get confused
6023 	 * by non-zero YQ when receiving RGB. There doesn't seem to be any
6024 	 * good way to tell which version of CEA-861 the sink supports, so
6025 	 * we limit non-zero YQ to HDMI 2.0 sinks only as HDMI 2.0 is based
6026 	 * on on CEA-861-F.
6027 	 */
6028 	if (!is_hdmi2_sink(connector) ||
6029 	    rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)
6030 		frame->ycc_quantization_range =
6031 			HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
6032 	else
6033 		frame->ycc_quantization_range =
6034 			HDMI_YCC_QUANTIZATION_RANGE_FULL;
6035 }
6036 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_quant_range);
6037 
6038 static enum hdmi_3d_structure
6039 s3d_structure_from_display_mode(const struct drm_display_mode *mode)
6040 {
6041 	u32 layout = mode->flags & DRM_MODE_FLAG_3D_MASK;
6042 
6043 	switch (layout) {
6044 	case DRM_MODE_FLAG_3D_FRAME_PACKING:
6045 		return HDMI_3D_STRUCTURE_FRAME_PACKING;
6046 	case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
6047 		return HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE;
6048 	case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
6049 		return HDMI_3D_STRUCTURE_LINE_ALTERNATIVE;
6050 	case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
6051 		return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL;
6052 	case DRM_MODE_FLAG_3D_L_DEPTH:
6053 		return HDMI_3D_STRUCTURE_L_DEPTH;
6054 	case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
6055 		return HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH;
6056 	case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
6057 		return HDMI_3D_STRUCTURE_TOP_AND_BOTTOM;
6058 	case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
6059 		return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF;
6060 	default:
6061 		return HDMI_3D_STRUCTURE_INVALID;
6062 	}
6063 }
6064 
6065 /**
6066  * drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
6067  * data from a DRM display mode
6068  * @frame: HDMI vendor infoframe
6069  * @connector: the connector
6070  * @mode: DRM display mode
6071  *
6072  * Note that there's is a need to send HDMI vendor infoframes only when using a
6073  * 4k or stereoscopic 3D mode. So when giving any other mode as input this
6074  * function will return -EINVAL, error that can be safely ignored.
6075  *
6076  * Return: 0 on success or a negative error code on failure.
6077  */
6078 int
6079 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
6080 					    const struct drm_connector *connector,
6081 					    const struct drm_display_mode *mode)
6082 {
6083 	/*
6084 	 * FIXME: sil-sii8620 doesn't have a connector around when
6085 	 * we need one, so we have to be prepared for a NULL connector.
6086 	 */
6087 	bool has_hdmi_infoframe = connector ?
6088 		connector->display_info.has_hdmi_infoframe : false;
6089 	int err;
6090 
6091 	if (!frame || !mode)
6092 		return -EINVAL;
6093 
6094 	if (!has_hdmi_infoframe)
6095 		return -EINVAL;
6096 
6097 	err = hdmi_vendor_infoframe_init(frame);
6098 	if (err < 0)
6099 		return err;
6100 
6101 	/*
6102 	 * Even if it's not absolutely necessary to send the infoframe
6103 	 * (ie.vic==0 and s3d_struct==0) we will still send it if we
6104 	 * know that the sink can handle it. This is based on a
6105 	 * suggestion in HDMI 2.0 Appendix F. Apparently some sinks
6106 	 * have trouble realizing that they should switch from 3D to 2D
6107 	 * mode if the source simply stops sending the infoframe when
6108 	 * it wants to switch from 3D to 2D.
6109 	 */
6110 	frame->vic = drm_mode_hdmi_vic(connector, mode);
6111 	frame->s3d_struct = s3d_structure_from_display_mode(mode);
6112 
6113 	return 0;
6114 }
6115 EXPORT_SYMBOL(drm_hdmi_vendor_infoframe_from_display_mode);
6116 
6117 static void drm_parse_tiled_block(struct drm_connector *connector,
6118 				  const struct displayid_block *block)
6119 {
6120 	const struct displayid_tiled_block *tile = (struct displayid_tiled_block *)block;
6121 	u16 w, h;
6122 	u8 tile_v_loc, tile_h_loc;
6123 	u8 num_v_tile, num_h_tile;
6124 	struct drm_tile_group *tg;
6125 
6126 	w = tile->tile_size[0] | tile->tile_size[1] << 8;
6127 	h = tile->tile_size[2] | tile->tile_size[3] << 8;
6128 
6129 	num_v_tile = (tile->topo[0] & 0xf) | (tile->topo[2] & 0x30);
6130 	num_h_tile = (tile->topo[0] >> 4) | ((tile->topo[2] >> 2) & 0x30);
6131 	tile_v_loc = (tile->topo[1] & 0xf) | ((tile->topo[2] & 0x3) << 4);
6132 	tile_h_loc = (tile->topo[1] >> 4) | (((tile->topo[2] >> 2) & 0x3) << 4);
6133 
6134 	connector->has_tile = true;
6135 	if (tile->tile_cap & 0x80)
6136 		connector->tile_is_single_monitor = true;
6137 
6138 	connector->num_h_tile = num_h_tile + 1;
6139 	connector->num_v_tile = num_v_tile + 1;
6140 	connector->tile_h_loc = tile_h_loc;
6141 	connector->tile_v_loc = tile_v_loc;
6142 	connector->tile_h_size = w + 1;
6143 	connector->tile_v_size = h + 1;
6144 
6145 	DRM_DEBUG_KMS("tile cap 0x%x\n", tile->tile_cap);
6146 	DRM_DEBUG_KMS("tile_size %d x %d\n", w + 1, h + 1);
6147 	DRM_DEBUG_KMS("topo num tiles %dx%d, location %dx%d\n",
6148 		      num_h_tile + 1, num_v_tile + 1, tile_h_loc, tile_v_loc);
6149 	DRM_DEBUG_KMS("vend %c%c%c\n", tile->topology_id[0], tile->topology_id[1], tile->topology_id[2]);
6150 
6151 	tg = drm_mode_get_tile_group(connector->dev, tile->topology_id);
6152 	if (!tg)
6153 		tg = drm_mode_create_tile_group(connector->dev, tile->topology_id);
6154 	if (!tg)
6155 		return;
6156 
6157 	if (connector->tile_group != tg) {
6158 		/* if we haven't got a pointer,
6159 		   take the reference, drop ref to old tile group */
6160 		if (connector->tile_group)
6161 			drm_mode_put_tile_group(connector->dev, connector->tile_group);
6162 		connector->tile_group = tg;
6163 	} else {
6164 		/* if same tile group, then release the ref we just took. */
6165 		drm_mode_put_tile_group(connector->dev, tg);
6166 	}
6167 }
6168 
6169 void drm_update_tile_info(struct drm_connector *connector,
6170 			  const struct edid *edid)
6171 {
6172 	const struct displayid_block *block;
6173 	struct displayid_iter iter;
6174 
6175 	connector->has_tile = false;
6176 
6177 	displayid_iter_edid_begin(edid, &iter);
6178 	displayid_iter_for_each(block, &iter) {
6179 		if (block->tag == DATA_BLOCK_TILED_DISPLAY)
6180 			drm_parse_tiled_block(connector, block);
6181 	}
6182 	displayid_iter_end(&iter);
6183 
6184 	if (!connector->has_tile && connector->tile_group) {
6185 		drm_mode_put_tile_group(connector->dev, connector->tile_group);
6186 		connector->tile_group = NULL;
6187 	}
6188 }
6189