xref: /openbmc/linux/include/drm/drm_modes.h (revision 59b4412f)
1 /*
2  * Copyright © 2006 Keith Packard
3  * Copyright © 2007-2008 Dave Airlie
4  * Copyright © 2007-2008 Intel Corporation
5  *   Jesse Barnes <jesse.barnes@intel.com>
6  * Copyright © 2014 Intel Corporation
7  *   Daniel Vetter <daniel.vetter@ffwll.ch>
8  *
9  * Permission is hereby granted, free of charge, to any person obtaining a
10  * copy of this software and associated documentation files (the "Software"),
11  * to deal in the Software without restriction, including without limitation
12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13  * and/or sell copies of the Software, and to permit persons to whom the
14  * Software is furnished to do so, subject to the following conditions:
15  *
16  * The above copyright notice and this permission notice shall be included in
17  * all copies or substantial portions of the Software.
18  *
19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25  * OTHER DEALINGS IN THE SOFTWARE.
26  */
27 #ifndef __DRM_MODES_H__
28 #define __DRM_MODES_H__
29 
30 #include <linux/hdmi.h>
31 
32 #include <drm/drm_mode_object.h>
33 #include <drm/drm_connector.h>
34 
35 struct videomode;
36 
37 /*
38  * Note on terminology:  here, for brevity and convenience, we refer to connector
39  * control chips as 'CRTCs'.  They can control any type of connector, VGA, LVDS,
40  * DVI, etc.  And 'screen' refers to the whole of the visible display, which
41  * may span multiple monitors (and therefore multiple CRTC and connector
42  * structures).
43  */
44 
45 /**
46  * enum drm_mode_status - hardware support status of a mode
47  * @MODE_OK: Mode OK
48  * @MODE_HSYNC: hsync out of range
49  * @MODE_VSYNC: vsync out of range
50  * @MODE_H_ILLEGAL: mode has illegal horizontal timings
51  * @MODE_V_ILLEGAL: mode has illegal vertical timings
52  * @MODE_BAD_WIDTH: requires an unsupported linepitch
53  * @MODE_NOMODE: no mode with a matching name
54  * @MODE_NO_INTERLACE: interlaced mode not supported
55  * @MODE_NO_DBLESCAN: doublescan mode not supported
56  * @MODE_NO_VSCAN: multiscan mode not supported
57  * @MODE_MEM: insufficient video memory
58  * @MODE_VIRTUAL_X: mode width too large for specified virtual size
59  * @MODE_VIRTUAL_Y: mode height too large for specified virtual size
60  * @MODE_MEM_VIRT: insufficient video memory given virtual size
61  * @MODE_NOCLOCK: no fixed clock available
62  * @MODE_CLOCK_HIGH: clock required is too high
63  * @MODE_CLOCK_LOW: clock required is too low
64  * @MODE_CLOCK_RANGE: clock/mode isn't in a ClockRange
65  * @MODE_BAD_HVALUE: horizontal timing was out of range
66  * @MODE_BAD_VVALUE: vertical timing was out of range
67  * @MODE_BAD_VSCAN: VScan value out of range
68  * @MODE_HSYNC_NARROW: horizontal sync too narrow
69  * @MODE_HSYNC_WIDE: horizontal sync too wide
70  * @MODE_HBLANK_NARROW: horizontal blanking too narrow
71  * @MODE_HBLANK_WIDE: horizontal blanking too wide
72  * @MODE_VSYNC_NARROW: vertical sync too narrow
73  * @MODE_VSYNC_WIDE: vertical sync too wide
74  * @MODE_VBLANK_NARROW: vertical blanking too narrow
75  * @MODE_VBLANK_WIDE: vertical blanking too wide
76  * @MODE_PANEL: exceeds panel dimensions
77  * @MODE_INTERLACE_WIDTH: width too large for interlaced mode
78  * @MODE_ONE_WIDTH: only one width is supported
79  * @MODE_ONE_HEIGHT: only one height is supported
80  * @MODE_ONE_SIZE: only one resolution is supported
81  * @MODE_NO_REDUCED: monitor doesn't accept reduced blanking
82  * @MODE_NO_STEREO: stereo modes not supported
83  * @MODE_NO_420: ycbcr 420 modes not supported
84  * @MODE_STALE: mode has become stale
85  * @MODE_BAD: unspecified reason
86  * @MODE_ERROR: error condition
87  *
88  * This enum is used to filter out modes not supported by the driver/hardware
89  * combination.
90  */
91 enum drm_mode_status {
92 	MODE_OK = 0,
93 	MODE_HSYNC,
94 	MODE_VSYNC,
95 	MODE_H_ILLEGAL,
96 	MODE_V_ILLEGAL,
97 	MODE_BAD_WIDTH,
98 	MODE_NOMODE,
99 	MODE_NO_INTERLACE,
100 	MODE_NO_DBLESCAN,
101 	MODE_NO_VSCAN,
102 	MODE_MEM,
103 	MODE_VIRTUAL_X,
104 	MODE_VIRTUAL_Y,
105 	MODE_MEM_VIRT,
106 	MODE_NOCLOCK,
107 	MODE_CLOCK_HIGH,
108 	MODE_CLOCK_LOW,
109 	MODE_CLOCK_RANGE,
110 	MODE_BAD_HVALUE,
111 	MODE_BAD_VVALUE,
112 	MODE_BAD_VSCAN,
113 	MODE_HSYNC_NARROW,
114 	MODE_HSYNC_WIDE,
115 	MODE_HBLANK_NARROW,
116 	MODE_HBLANK_WIDE,
117 	MODE_VSYNC_NARROW,
118 	MODE_VSYNC_WIDE,
119 	MODE_VBLANK_NARROW,
120 	MODE_VBLANK_WIDE,
121 	MODE_PANEL,
122 	MODE_INTERLACE_WIDTH,
123 	MODE_ONE_WIDTH,
124 	MODE_ONE_HEIGHT,
125 	MODE_ONE_SIZE,
126 	MODE_NO_REDUCED,
127 	MODE_NO_STEREO,
128 	MODE_NO_420,
129 	MODE_STALE = -3,
130 	MODE_BAD = -2,
131 	MODE_ERROR = -1
132 };
133 
134 #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
135 	.name = nm, .status = 0, .type = (t), .clock = (c), \
136 	.hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
137 	.htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
138 	.vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
139 	.vscan = (vs), .flags = (f)
140 
141 /**
142  * DRM_SIMPLE_MODE - Simple display mode
143  * @hd: Horizontal resolution, width
144  * @vd: Vertical resolution, height
145  * @hd_mm: Display width in millimeters
146  * @vd_mm: Display height in millimeters
147  *
148  * This macro initializes a &drm_display_mode that only contains info about
149  * resolution and physical size.
150  */
151 #define DRM_SIMPLE_MODE(hd, vd, hd_mm, vd_mm) \
152 	.type = DRM_MODE_TYPE_DRIVER, .clock = 1 /* pass validation */, \
153 	.hdisplay = (hd), .hsync_start = (hd), .hsync_end = (hd), \
154 	.htotal = (hd), .vdisplay = (vd), .vsync_start = (vd), \
155 	.vsync_end = (vd), .vtotal = (vd), .width_mm = (hd_mm), \
156 	.height_mm = (vd_mm)
157 
158 #define CRTC_INTERLACE_HALVE_V	(1 << 0) /* halve V values for interlacing */
159 #define CRTC_STEREO_DOUBLE	(1 << 1) /* adjust timings for stereo modes */
160 #define CRTC_NO_DBLSCAN		(1 << 2) /* don't adjust doublescan */
161 #define CRTC_NO_VSCAN		(1 << 3) /* don't adjust doublescan */
162 #define CRTC_STEREO_DOUBLE_ONLY	(CRTC_STEREO_DOUBLE | CRTC_NO_DBLSCAN | CRTC_NO_VSCAN)
163 
164 #define DRM_MODE_FLAG_3D_MAX	DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
165 
166 #define DRM_MODE_MATCH_TIMINGS (1 << 0)
167 #define DRM_MODE_MATCH_CLOCK (1 << 1)
168 #define DRM_MODE_MATCH_FLAGS (1 << 2)
169 #define DRM_MODE_MATCH_3D_FLAGS (1 << 3)
170 #define DRM_MODE_MATCH_ASPECT_RATIO (1 << 4)
171 
172 /**
173  * struct drm_display_mode - DRM kernel-internal display mode structure
174  * @hdisplay: horizontal display size
175  * @hsync_start: horizontal sync start
176  * @hsync_end: horizontal sync end
177  * @htotal: horizontal total size
178  * @hskew: horizontal skew?!
179  * @vdisplay: vertical display size
180  * @vsync_start: vertical sync start
181  * @vsync_end: vertical sync end
182  * @vtotal: vertical total size
183  * @vscan: vertical scan?!
184  * @crtc_hdisplay: hardware mode horizontal display size
185  * @crtc_hblank_start: hardware mode horizontal blank start
186  * @crtc_hblank_end: hardware mode horizontal blank end
187  * @crtc_hsync_start: hardware mode horizontal sync start
188  * @crtc_hsync_end: hardware mode horizontal sync end
189  * @crtc_htotal: hardware mode horizontal total size
190  * @crtc_hskew: hardware mode horizontal skew?!
191  * @crtc_vdisplay: hardware mode vertical display size
192  * @crtc_vblank_start: hardware mode vertical blank start
193  * @crtc_vblank_end: hardware mode vertical blank end
194  * @crtc_vsync_start: hardware mode vertical sync start
195  * @crtc_vsync_end: hardware mode vertical sync end
196  * @crtc_vtotal: hardware mode vertical total size
197  *
198  * The horizontal and vertical timings are defined per the following diagram.
199  *
200  * ::
201  *
202  *
203  *               Active                 Front           Sync           Back
204  *              Region                 Porch                          Porch
205  *     <-----------------------><----------------><-------------><-------------->
206  *       //////////////////////|
207  *      ////////////////////// |
208  *     //////////////////////  |..................               ................
209  *                                                _______________
210  *     <----- [hv]display ----->
211  *     <------------- [hv]sync_start ------------>
212  *     <--------------------- [hv]sync_end --------------------->
213  *     <-------------------------------- [hv]total ----------------------------->*
214  *
215  * This structure contains two copies of timings. First are the plain timings,
216  * which specify the logical mode, as it would be for a progressive 1:1 scanout
217  * at the refresh rate userspace can observe through vblank timestamps. Then
218  * there's the hardware timings, which are corrected for interlacing,
219  * double-clocking and similar things. They are provided as a convenience, and
220  * can be appropriately computed using drm_mode_set_crtcinfo().
221  *
222  * For printing you can use %DRM_MODE_FMT and DRM_MODE_ARG().
223  */
224 struct drm_display_mode {
225 	/**
226 	 * @head:
227 	 *
228 	 * struct list_head for mode lists.
229 	 */
230 	struct list_head head;
231 
232 	/**
233 	 * @name:
234 	 *
235 	 * Human-readable name of the mode, filled out with drm_mode_set_name().
236 	 */
237 	char name[DRM_DISPLAY_MODE_LEN];
238 
239 	/**
240 	 * @status:
241 	 *
242 	 * Status of the mode, used to filter out modes not supported by the
243 	 * hardware. See enum &drm_mode_status.
244 	 */
245 	enum drm_mode_status status;
246 
247 	/**
248 	 * @type:
249 	 *
250 	 * A bitmask of flags, mostly about the source of a mode. Possible flags
251 	 * are:
252 	 *
253 	 *  - DRM_MODE_TYPE_PREFERRED: Preferred mode, usually the native
254 	 *    resolution of an LCD panel. There should only be one preferred
255 	 *    mode per connector at any given time.
256 	 *  - DRM_MODE_TYPE_DRIVER: Mode created by the driver, which is all of
257 	 *    them really. Drivers must set this bit for all modes they create
258 	 *    and expose to userspace.
259 	 *  - DRM_MODE_TYPE_USERDEF: Mode defined via kernel command line
260 	 *
261 	 * Plus a big list of flags which shouldn't be used at all, but are
262 	 * still around since these flags are also used in the userspace ABI.
263 	 * We no longer accept modes with these types though:
264 	 *
265 	 *  - DRM_MODE_TYPE_BUILTIN: Meant for hard-coded modes, unused.
266 	 *    Use DRM_MODE_TYPE_DRIVER instead.
267 	 *  - DRM_MODE_TYPE_DEFAULT: Again a leftover, use
268 	 *    DRM_MODE_TYPE_PREFERRED instead.
269 	 *  - DRM_MODE_TYPE_CLOCK_C and DRM_MODE_TYPE_CRTC_C: Define leftovers
270 	 *    which are stuck around for hysterical raisins only. No one has an
271 	 *    idea what they were meant for. Don't use.
272 	 */
273 	unsigned int type;
274 
275 	/**
276 	 * @clock:
277 	 *
278 	 * Pixel clock in kHz.
279 	 */
280 	int clock;		/* in kHz */
281 	int hdisplay;
282 	int hsync_start;
283 	int hsync_end;
284 	int htotal;
285 	int hskew;
286 	int vdisplay;
287 	int vsync_start;
288 	int vsync_end;
289 	int vtotal;
290 	int vscan;
291 	/**
292 	 * @flags:
293 	 *
294 	 * Sync and timing flags:
295 	 *
296 	 *  - DRM_MODE_FLAG_PHSYNC: horizontal sync is active high.
297 	 *  - DRM_MODE_FLAG_NHSYNC: horizontal sync is active low.
298 	 *  - DRM_MODE_FLAG_PVSYNC: vertical sync is active high.
299 	 *  - DRM_MODE_FLAG_NVSYNC: vertical sync is active low.
300 	 *  - DRM_MODE_FLAG_INTERLACE: mode is interlaced.
301 	 *  - DRM_MODE_FLAG_DBLSCAN: mode uses doublescan.
302 	 *  - DRM_MODE_FLAG_CSYNC: mode uses composite sync.
303 	 *  - DRM_MODE_FLAG_PCSYNC: composite sync is active high.
304 	 *  - DRM_MODE_FLAG_NCSYNC: composite sync is active low.
305 	 *  - DRM_MODE_FLAG_HSKEW: hskew provided (not used?).
306 	 *  - DRM_MODE_FLAG_BCAST: <deprecated>
307 	 *  - DRM_MODE_FLAG_PIXMUX: <deprecated>
308 	 *  - DRM_MODE_FLAG_DBLCLK: double-clocked mode.
309 	 *  - DRM_MODE_FLAG_CLKDIV2: half-clocked mode.
310 	 *
311 	 * Additionally there's flags to specify how 3D modes are packed:
312 	 *
313 	 *  - DRM_MODE_FLAG_3D_NONE: normal, non-3D mode.
314 	 *  - DRM_MODE_FLAG_3D_FRAME_PACKING: 2 full frames for left and right.
315 	 *  - DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE: interleaved like fields.
316 	 *  - DRM_MODE_FLAG_3D_LINE_ALTERNATIVE: interleaved lines.
317 	 *  - DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL: side-by-side full frames.
318 	 *  - DRM_MODE_FLAG_3D_L_DEPTH: ?
319 	 *  - DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH: ?
320 	 *  - DRM_MODE_FLAG_3D_TOP_AND_BOTTOM: frame split into top and bottom
321 	 *    parts.
322 	 *  - DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF: frame split into left and
323 	 *    right parts.
324 	 */
325 	unsigned int flags;
326 
327 	/**
328 	 * @width_mm:
329 	 *
330 	 * Addressable size of the output in mm, projectors should set this to
331 	 * 0.
332 	 */
333 	int width_mm;
334 
335 	/**
336 	 * @height_mm:
337 	 *
338 	 * Addressable size of the output in mm, projectors should set this to
339 	 * 0.
340 	 */
341 	int height_mm;
342 
343 	/**
344 	 * @crtc_clock:
345 	 *
346 	 * Actual pixel or dot clock in the hardware. This differs from the
347 	 * logical @clock when e.g. using interlacing, double-clocking, stereo
348 	 * modes or other fancy stuff that changes the timings and signals
349 	 * actually sent over the wire.
350 	 *
351 	 * This is again in kHz.
352 	 *
353 	 * Note that with digital outputs like HDMI or DP there's usually a
354 	 * massive confusion between the dot clock and the signal clock at the
355 	 * bit encoding level. Especially when a 8b/10b encoding is used and the
356 	 * difference is exactly a factor of 10.
357 	 */
358 	int crtc_clock;
359 	int crtc_hdisplay;
360 	int crtc_hblank_start;
361 	int crtc_hblank_end;
362 	int crtc_hsync_start;
363 	int crtc_hsync_end;
364 	int crtc_htotal;
365 	int crtc_hskew;
366 	int crtc_vdisplay;
367 	int crtc_vblank_start;
368 	int crtc_vblank_end;
369 	int crtc_vsync_start;
370 	int crtc_vsync_end;
371 	int crtc_vtotal;
372 
373 	/**
374 	 * @private_flags:
375 	 *
376 	 * Driver private flags. private_flags can only be used for mode
377 	 * objects passed to drivers in modeset operations. It shouldn't be used
378 	 * by atomic drivers since they can store any additional data by
379 	 * subclassing state structures.
380 	 */
381 	int private_flags;
382 
383 	/**
384 	 * @vrefresh:
385 	 *
386 	 * Vertical refresh rate, for debug output in human readable form. Not
387 	 * used in a functional way.
388 	 *
389 	 * This value is in Hz.
390 	 */
391 	int vrefresh;
392 
393 	/**
394 	 * @picture_aspect_ratio:
395 	 *
396 	 * Field for setting the HDMI picture aspect ratio of a mode.
397 	 */
398 	enum hdmi_picture_aspect picture_aspect_ratio;
399 
400 	/**
401 	 * @export_head:
402 	 *
403 	 * struct list_head for modes to be exposed to the userspace.
404 	 * This is to maintain a list of exposed modes while preparing
405 	 * user-mode's list in drm_mode_getconnector ioctl. The purpose of this
406 	 * list_head only lies in the ioctl function, and is not expected to be
407 	 * used outside the function.
408 	 * Once used, the stale pointers are not reset, but left as it is, to
409 	 * avoid overhead of protecting it by mode_config.mutex.
410 	 */
411 	struct list_head export_head;
412 };
413 
414 /**
415  * DRM_MODE_FMT - printf string for &struct drm_display_mode
416  */
417 #define DRM_MODE_FMT    "\"%s\": %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x"
418 
419 /**
420  * DRM_MODE_ARG - printf arguments for &struct drm_display_mode
421  * @m: display mode
422  */
423 #define DRM_MODE_ARG(m) \
424 	(m)->name, (m)->vrefresh, (m)->clock, \
425 	(m)->hdisplay, (m)->hsync_start, (m)->hsync_end, (m)->htotal, \
426 	(m)->vdisplay, (m)->vsync_start, (m)->vsync_end, (m)->vtotal, \
427 	(m)->type, (m)->flags
428 
429 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
430 
431 /**
432  * drm_mode_is_stereo - check for stereo mode flags
433  * @mode: drm_display_mode to check
434  *
435  * Returns:
436  * True if the mode is one of the stereo modes (like side-by-side), false if
437  * not.
438  */
439 static inline bool drm_mode_is_stereo(const struct drm_display_mode *mode)
440 {
441 	return mode->flags & DRM_MODE_FLAG_3D_MASK;
442 }
443 
444 struct drm_connector;
445 struct drm_cmdline_mode;
446 
447 struct drm_display_mode *drm_mode_create(struct drm_device *dev);
448 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
449 void drm_mode_convert_to_umode(struct drm_mode_modeinfo *out,
450 			       const struct drm_display_mode *in);
451 int drm_mode_convert_umode(struct drm_device *dev,
452 			   struct drm_display_mode *out,
453 			   const struct drm_mode_modeinfo *in);
454 void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
455 void drm_mode_debug_printmodeline(const struct drm_display_mode *mode);
456 bool drm_mode_is_420_only(const struct drm_display_info *display,
457 			  const struct drm_display_mode *mode);
458 bool drm_mode_is_420_also(const struct drm_display_info *display,
459 			  const struct drm_display_mode *mode);
460 bool drm_mode_is_420(const struct drm_display_info *display,
461 		     const struct drm_display_mode *mode);
462 
463 struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
464 				      int hdisplay, int vdisplay, int vrefresh,
465 				      bool reduced, bool interlaced,
466 				      bool margins);
467 struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
468 				      int hdisplay, int vdisplay, int vrefresh,
469 				      bool interlaced, int margins);
470 struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
471 					      int hdisplay, int vdisplay,
472 					      int vrefresh, bool interlaced,
473 					      int margins,
474 					      int GTF_M, int GTF_2C,
475 					      int GTF_K, int GTF_2J);
476 void drm_display_mode_from_videomode(const struct videomode *vm,
477 				     struct drm_display_mode *dmode);
478 void drm_display_mode_to_videomode(const struct drm_display_mode *dmode,
479 				   struct videomode *vm);
480 void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags);
481 int of_get_drm_display_mode(struct device_node *np,
482 			    struct drm_display_mode *dmode, u32 *bus_flags,
483 			    int index);
484 
485 void drm_mode_set_name(struct drm_display_mode *mode);
486 int drm_mode_vrefresh(const struct drm_display_mode *mode);
487 void drm_mode_get_hv_timing(const struct drm_display_mode *mode,
488 			    int *hdisplay, int *vdisplay);
489 
490 void drm_mode_set_crtcinfo(struct drm_display_mode *p,
491 			   int adjust_flags);
492 void drm_mode_copy(struct drm_display_mode *dst,
493 		   const struct drm_display_mode *src);
494 struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
495 					    const struct drm_display_mode *mode);
496 bool drm_mode_match(const struct drm_display_mode *mode1,
497 		    const struct drm_display_mode *mode2,
498 		    unsigned int match_flags);
499 bool drm_mode_equal(const struct drm_display_mode *mode1,
500 		    const struct drm_display_mode *mode2);
501 bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1,
502 			      const struct drm_display_mode *mode2);
503 bool drm_mode_equal_no_clocks_no_stereo(const struct drm_display_mode *mode1,
504 					const struct drm_display_mode *mode2);
505 
506 /* for use by the crtc helper probe functions */
507 enum drm_mode_status drm_mode_validate_driver(struct drm_device *dev,
508 					      const struct drm_display_mode *mode);
509 enum drm_mode_status drm_mode_validate_size(const struct drm_display_mode *mode,
510 					    int maxX, int maxY);
511 enum drm_mode_status
512 drm_mode_validate_ycbcr420(const struct drm_display_mode *mode,
513 			   struct drm_connector *connector);
514 void drm_mode_prune_invalid(struct drm_device *dev,
515 			    struct list_head *mode_list, bool verbose);
516 void drm_mode_sort(struct list_head *mode_list);
517 void drm_connector_list_update(struct drm_connector *connector);
518 
519 /* parsing cmdline modes */
520 bool
521 drm_mode_parse_command_line_for_connector(const char *mode_option,
522 					  const struct drm_connector *connector,
523 					  struct drm_cmdline_mode *mode);
524 struct drm_display_mode *
525 drm_mode_create_from_cmdline_mode(struct drm_device *dev,
526 				  struct drm_cmdline_mode *cmd);
527 
528 #endif /* __DRM_MODES_H__ */
529