1 /*
2  * Copyright 2004 ATI Technologies Inc., Markham, Ontario
3  * Copyright 2007-8 Advanced Micro Devices, Inc.
4  * Copyright 2008 Red Hat Inc.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Dave Airlie
25  *          Alex Deucher
26  */
27 #include <drm/drmP.h>
28 #include <drm/radeon_drm.h>
29 #include "radeon.h"
30 #include "atom.h"
31 
32 #ifdef CONFIG_PPC_PMAC
33 /* not sure which of these are needed */
34 #include <asm/machdep.h>
35 #include <asm/pmac_feature.h>
36 #include <asm/prom.h>
37 #include <asm/pci-bridge.h>
38 #endif /* CONFIG_PPC_PMAC */
39 
40 /* from radeon_legacy_encoder.c */
41 extern void
42 radeon_add_legacy_encoder(struct drm_device *dev, uint32_t encoder_enum,
43 			  uint32_t supported_device);
44 
45 /* old legacy ATI BIOS routines */
46 
47 /* COMBIOS table offsets */
48 enum radeon_combios_table_offset {
49 	/* absolute offset tables */
50 	COMBIOS_ASIC_INIT_1_TABLE,
51 	COMBIOS_BIOS_SUPPORT_TABLE,
52 	COMBIOS_DAC_PROGRAMMING_TABLE,
53 	COMBIOS_MAX_COLOR_DEPTH_TABLE,
54 	COMBIOS_CRTC_INFO_TABLE,
55 	COMBIOS_PLL_INFO_TABLE,
56 	COMBIOS_TV_INFO_TABLE,
57 	COMBIOS_DFP_INFO_TABLE,
58 	COMBIOS_HW_CONFIG_INFO_TABLE,
59 	COMBIOS_MULTIMEDIA_INFO_TABLE,
60 	COMBIOS_TV_STD_PATCH_TABLE,
61 	COMBIOS_LCD_INFO_TABLE,
62 	COMBIOS_MOBILE_INFO_TABLE,
63 	COMBIOS_PLL_INIT_TABLE,
64 	COMBIOS_MEM_CONFIG_TABLE,
65 	COMBIOS_SAVE_MASK_TABLE,
66 	COMBIOS_HARDCODED_EDID_TABLE,
67 	COMBIOS_ASIC_INIT_2_TABLE,
68 	COMBIOS_CONNECTOR_INFO_TABLE,
69 	COMBIOS_DYN_CLK_1_TABLE,
70 	COMBIOS_RESERVED_MEM_TABLE,
71 	COMBIOS_EXT_TMDS_INFO_TABLE,
72 	COMBIOS_MEM_CLK_INFO_TABLE,
73 	COMBIOS_EXT_DAC_INFO_TABLE,
74 	COMBIOS_MISC_INFO_TABLE,
75 	COMBIOS_CRT_INFO_TABLE,
76 	COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE,
77 	COMBIOS_COMPONENT_VIDEO_INFO_TABLE,
78 	COMBIOS_FAN_SPEED_INFO_TABLE,
79 	COMBIOS_OVERDRIVE_INFO_TABLE,
80 	COMBIOS_OEM_INFO_TABLE,
81 	COMBIOS_DYN_CLK_2_TABLE,
82 	COMBIOS_POWER_CONNECTOR_INFO_TABLE,
83 	COMBIOS_I2C_INFO_TABLE,
84 	/* relative offset tables */
85 	COMBIOS_ASIC_INIT_3_TABLE,	/* offset from misc info */
86 	COMBIOS_ASIC_INIT_4_TABLE,	/* offset from misc info */
87 	COMBIOS_DETECTED_MEM_TABLE,	/* offset from misc info */
88 	COMBIOS_ASIC_INIT_5_TABLE,	/* offset from misc info */
89 	COMBIOS_RAM_RESET_TABLE,	/* offset from mem config */
90 	COMBIOS_POWERPLAY_INFO_TABLE,	/* offset from mobile info */
91 	COMBIOS_GPIO_INFO_TABLE,	/* offset from mobile info */
92 	COMBIOS_LCD_DDC_INFO_TABLE,	/* offset from mobile info */
93 	COMBIOS_TMDS_POWER_TABLE,	/* offset from mobile info */
94 	COMBIOS_TMDS_POWER_ON_TABLE,	/* offset from tmds power */
95 	COMBIOS_TMDS_POWER_OFF_TABLE,	/* offset from tmds power */
96 };
97 
98 enum radeon_combios_ddc {
99 	DDC_NONE_DETECTED,
100 	DDC_MONID,
101 	DDC_DVI,
102 	DDC_VGA,
103 	DDC_CRT2,
104 	DDC_LCD,
105 	DDC_GPIO,
106 };
107 
108 enum radeon_combios_connector {
109 	CONNECTOR_NONE_LEGACY,
110 	CONNECTOR_PROPRIETARY_LEGACY,
111 	CONNECTOR_CRT_LEGACY,
112 	CONNECTOR_DVI_I_LEGACY,
113 	CONNECTOR_DVI_D_LEGACY,
114 	CONNECTOR_CTV_LEGACY,
115 	CONNECTOR_STV_LEGACY,
116 	CONNECTOR_UNSUPPORTED_LEGACY
117 };
118 
119 static const int legacy_connector_convert[] = {
120 	DRM_MODE_CONNECTOR_Unknown,
121 	DRM_MODE_CONNECTOR_DVID,
122 	DRM_MODE_CONNECTOR_VGA,
123 	DRM_MODE_CONNECTOR_DVII,
124 	DRM_MODE_CONNECTOR_DVID,
125 	DRM_MODE_CONNECTOR_Composite,
126 	DRM_MODE_CONNECTOR_SVIDEO,
127 	DRM_MODE_CONNECTOR_Unknown,
128 };
129 
130 static uint16_t combios_get_table_offset(struct drm_device *dev,
131 					 enum radeon_combios_table_offset table)
132 {
133 	struct radeon_device *rdev = dev->dev_private;
134 	int rev, size;
135 	uint16_t offset = 0, check_offset;
136 
137 	if (!rdev->bios)
138 		return 0;
139 
140 	switch (table) {
141 		/* absolute offset tables */
142 	case COMBIOS_ASIC_INIT_1_TABLE:
143 		check_offset = 0xc;
144 		break;
145 	case COMBIOS_BIOS_SUPPORT_TABLE:
146 		check_offset = 0x14;
147 		break;
148 	case COMBIOS_DAC_PROGRAMMING_TABLE:
149 		check_offset = 0x2a;
150 		break;
151 	case COMBIOS_MAX_COLOR_DEPTH_TABLE:
152 		check_offset = 0x2c;
153 		break;
154 	case COMBIOS_CRTC_INFO_TABLE:
155 		check_offset = 0x2e;
156 		break;
157 	case COMBIOS_PLL_INFO_TABLE:
158 		check_offset = 0x30;
159 		break;
160 	case COMBIOS_TV_INFO_TABLE:
161 		check_offset = 0x32;
162 		break;
163 	case COMBIOS_DFP_INFO_TABLE:
164 		check_offset = 0x34;
165 		break;
166 	case COMBIOS_HW_CONFIG_INFO_TABLE:
167 		check_offset = 0x36;
168 		break;
169 	case COMBIOS_MULTIMEDIA_INFO_TABLE:
170 		check_offset = 0x38;
171 		break;
172 	case COMBIOS_TV_STD_PATCH_TABLE:
173 		check_offset = 0x3e;
174 		break;
175 	case COMBIOS_LCD_INFO_TABLE:
176 		check_offset = 0x40;
177 		break;
178 	case COMBIOS_MOBILE_INFO_TABLE:
179 		check_offset = 0x42;
180 		break;
181 	case COMBIOS_PLL_INIT_TABLE:
182 		check_offset = 0x46;
183 		break;
184 	case COMBIOS_MEM_CONFIG_TABLE:
185 		check_offset = 0x48;
186 		break;
187 	case COMBIOS_SAVE_MASK_TABLE:
188 		check_offset = 0x4a;
189 		break;
190 	case COMBIOS_HARDCODED_EDID_TABLE:
191 		check_offset = 0x4c;
192 		break;
193 	case COMBIOS_ASIC_INIT_2_TABLE:
194 		check_offset = 0x4e;
195 		break;
196 	case COMBIOS_CONNECTOR_INFO_TABLE:
197 		check_offset = 0x50;
198 		break;
199 	case COMBIOS_DYN_CLK_1_TABLE:
200 		check_offset = 0x52;
201 		break;
202 	case COMBIOS_RESERVED_MEM_TABLE:
203 		check_offset = 0x54;
204 		break;
205 	case COMBIOS_EXT_TMDS_INFO_TABLE:
206 		check_offset = 0x58;
207 		break;
208 	case COMBIOS_MEM_CLK_INFO_TABLE:
209 		check_offset = 0x5a;
210 		break;
211 	case COMBIOS_EXT_DAC_INFO_TABLE:
212 		check_offset = 0x5c;
213 		break;
214 	case COMBIOS_MISC_INFO_TABLE:
215 		check_offset = 0x5e;
216 		break;
217 	case COMBIOS_CRT_INFO_TABLE:
218 		check_offset = 0x60;
219 		break;
220 	case COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE:
221 		check_offset = 0x62;
222 		break;
223 	case COMBIOS_COMPONENT_VIDEO_INFO_TABLE:
224 		check_offset = 0x64;
225 		break;
226 	case COMBIOS_FAN_SPEED_INFO_TABLE:
227 		check_offset = 0x66;
228 		break;
229 	case COMBIOS_OVERDRIVE_INFO_TABLE:
230 		check_offset = 0x68;
231 		break;
232 	case COMBIOS_OEM_INFO_TABLE:
233 		check_offset = 0x6a;
234 		break;
235 	case COMBIOS_DYN_CLK_2_TABLE:
236 		check_offset = 0x6c;
237 		break;
238 	case COMBIOS_POWER_CONNECTOR_INFO_TABLE:
239 		check_offset = 0x6e;
240 		break;
241 	case COMBIOS_I2C_INFO_TABLE:
242 		check_offset = 0x70;
243 		break;
244 		/* relative offset tables */
245 	case COMBIOS_ASIC_INIT_3_TABLE:	/* offset from misc info */
246 		check_offset =
247 		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
248 		if (check_offset) {
249 			rev = RBIOS8(check_offset);
250 			if (rev > 0) {
251 				check_offset = RBIOS16(check_offset + 0x3);
252 				if (check_offset)
253 					offset = check_offset;
254 			}
255 		}
256 		break;
257 	case COMBIOS_ASIC_INIT_4_TABLE:	/* offset from misc info */
258 		check_offset =
259 		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
260 		if (check_offset) {
261 			rev = RBIOS8(check_offset);
262 			if (rev > 0) {
263 				check_offset = RBIOS16(check_offset + 0x5);
264 				if (check_offset)
265 					offset = check_offset;
266 			}
267 		}
268 		break;
269 	case COMBIOS_DETECTED_MEM_TABLE:	/* offset from misc info */
270 		check_offset =
271 		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
272 		if (check_offset) {
273 			rev = RBIOS8(check_offset);
274 			if (rev > 0) {
275 				check_offset = RBIOS16(check_offset + 0x7);
276 				if (check_offset)
277 					offset = check_offset;
278 			}
279 		}
280 		break;
281 	case COMBIOS_ASIC_INIT_5_TABLE:	/* offset from misc info */
282 		check_offset =
283 		    combios_get_table_offset(dev, COMBIOS_MISC_INFO_TABLE);
284 		if (check_offset) {
285 			rev = RBIOS8(check_offset);
286 			if (rev == 2) {
287 				check_offset = RBIOS16(check_offset + 0x9);
288 				if (check_offset)
289 					offset = check_offset;
290 			}
291 		}
292 		break;
293 	case COMBIOS_RAM_RESET_TABLE:	/* offset from mem config */
294 		check_offset =
295 		    combios_get_table_offset(dev, COMBIOS_MEM_CONFIG_TABLE);
296 		if (check_offset) {
297 			while (RBIOS8(check_offset++));
298 			check_offset += 2;
299 			if (check_offset)
300 				offset = check_offset;
301 		}
302 		break;
303 	case COMBIOS_POWERPLAY_INFO_TABLE:	/* offset from mobile info */
304 		check_offset =
305 		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
306 		if (check_offset) {
307 			check_offset = RBIOS16(check_offset + 0x11);
308 			if (check_offset)
309 				offset = check_offset;
310 		}
311 		break;
312 	case COMBIOS_GPIO_INFO_TABLE:	/* offset from mobile info */
313 		check_offset =
314 		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
315 		if (check_offset) {
316 			check_offset = RBIOS16(check_offset + 0x13);
317 			if (check_offset)
318 				offset = check_offset;
319 		}
320 		break;
321 	case COMBIOS_LCD_DDC_INFO_TABLE:	/* offset from mobile info */
322 		check_offset =
323 		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
324 		if (check_offset) {
325 			check_offset = RBIOS16(check_offset + 0x15);
326 			if (check_offset)
327 				offset = check_offset;
328 		}
329 		break;
330 	case COMBIOS_TMDS_POWER_TABLE:	/* offset from mobile info */
331 		check_offset =
332 		    combios_get_table_offset(dev, COMBIOS_MOBILE_INFO_TABLE);
333 		if (check_offset) {
334 			check_offset = RBIOS16(check_offset + 0x17);
335 			if (check_offset)
336 				offset = check_offset;
337 		}
338 		break;
339 	case COMBIOS_TMDS_POWER_ON_TABLE:	/* offset from tmds power */
340 		check_offset =
341 		    combios_get_table_offset(dev, COMBIOS_TMDS_POWER_TABLE);
342 		if (check_offset) {
343 			check_offset = RBIOS16(check_offset + 0x2);
344 			if (check_offset)
345 				offset = check_offset;
346 		}
347 		break;
348 	case COMBIOS_TMDS_POWER_OFF_TABLE:	/* offset from tmds power */
349 		check_offset =
350 		    combios_get_table_offset(dev, COMBIOS_TMDS_POWER_TABLE);
351 		if (check_offset) {
352 			check_offset = RBIOS16(check_offset + 0x4);
353 			if (check_offset)
354 				offset = check_offset;
355 		}
356 		break;
357 	default:
358 		check_offset = 0;
359 		break;
360 	}
361 
362 	size = RBIOS8(rdev->bios_header_start + 0x6);
363 	/* check absolute offset tables */
364 	if (table < COMBIOS_ASIC_INIT_3_TABLE && check_offset && check_offset < size)
365 		offset = RBIOS16(rdev->bios_header_start + check_offset);
366 
367 	return offset;
368 }
369 
370 bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
371 {
372 	int edid_info, size;
373 	struct edid *edid;
374 	unsigned char *raw;
375 	edid_info = combios_get_table_offset(rdev->ddev, COMBIOS_HARDCODED_EDID_TABLE);
376 	if (!edid_info)
377 		return false;
378 
379 	raw = rdev->bios + edid_info;
380 	size = EDID_LENGTH * (raw[0x7e] + 1);
381 	edid = kmalloc(size, GFP_KERNEL);
382 	if (edid == NULL)
383 		return false;
384 
385 	memcpy((unsigned char *)edid, raw, size);
386 
387 	if (!drm_edid_is_valid(edid)) {
388 		kfree(edid);
389 		return false;
390 	}
391 
392 	rdev->mode_info.bios_hardcoded_edid = edid;
393 	rdev->mode_info.bios_hardcoded_edid_size = size;
394 	return true;
395 }
396 
397 /* this is used for atom LCDs as well */
398 struct edid *
399 radeon_bios_get_hardcoded_edid(struct radeon_device *rdev)
400 {
401 	struct edid *edid;
402 
403 	if (rdev->mode_info.bios_hardcoded_edid) {
404 		edid = kmalloc(rdev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL);
405 		if (edid) {
406 			memcpy((unsigned char *)edid,
407 			       (unsigned char *)rdev->mode_info.bios_hardcoded_edid,
408 			       rdev->mode_info.bios_hardcoded_edid_size);
409 			return edid;
410 		}
411 	}
412 	return NULL;
413 }
414 
415 static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rdev,
416 						       enum radeon_combios_ddc ddc,
417 						       u32 clk_mask,
418 						       u32 data_mask)
419 {
420 	struct radeon_i2c_bus_rec i2c;
421 	int ddc_line = 0;
422 
423 	/* ddc id            = mask reg
424 	 * DDC_NONE_DETECTED = none
425 	 * DDC_DVI           = RADEON_GPIO_DVI_DDC
426 	 * DDC_VGA           = RADEON_GPIO_VGA_DDC
427 	 * DDC_LCD           = RADEON_GPIOPAD_MASK
428 	 * DDC_GPIO          = RADEON_MDGPIO_MASK
429 	 * r1xx
430 	 * DDC_MONID         = RADEON_GPIO_MONID
431 	 * DDC_CRT2          = RADEON_GPIO_CRT2_DDC
432 	 * r200
433 	 * DDC_MONID         = RADEON_GPIO_MONID
434 	 * DDC_CRT2          = RADEON_GPIO_DVI_DDC
435 	 * r300/r350
436 	 * DDC_MONID         = RADEON_GPIO_DVI_DDC
437 	 * DDC_CRT2          = RADEON_GPIO_DVI_DDC
438 	 * rv2xx/rv3xx
439 	 * DDC_MONID         = RADEON_GPIO_MONID
440 	 * DDC_CRT2          = RADEON_GPIO_MONID
441 	 * rs3xx/rs4xx
442 	 * DDC_MONID         = RADEON_GPIOPAD_MASK
443 	 * DDC_CRT2          = RADEON_GPIO_MONID
444 	 */
445 	switch (ddc) {
446 	case DDC_NONE_DETECTED:
447 	default:
448 		ddc_line = 0;
449 		break;
450 	case DDC_DVI:
451 		ddc_line = RADEON_GPIO_DVI_DDC;
452 		break;
453 	case DDC_VGA:
454 		ddc_line = RADEON_GPIO_VGA_DDC;
455 		break;
456 	case DDC_LCD:
457 		ddc_line = RADEON_GPIOPAD_MASK;
458 		break;
459 	case DDC_GPIO:
460 		ddc_line = RADEON_MDGPIO_MASK;
461 		break;
462 	case DDC_MONID:
463 		if (rdev->family == CHIP_RS300 ||
464 		    rdev->family == CHIP_RS400 ||
465 		    rdev->family == CHIP_RS480)
466 			ddc_line = RADEON_GPIOPAD_MASK;
467 		else if (rdev->family == CHIP_R300 ||
468 			 rdev->family == CHIP_R350) {
469 			ddc_line = RADEON_GPIO_DVI_DDC;
470 			ddc = DDC_DVI;
471 		} else
472 			ddc_line = RADEON_GPIO_MONID;
473 		break;
474 	case DDC_CRT2:
475 		if (rdev->family == CHIP_R200 ||
476 		    rdev->family == CHIP_R300 ||
477 		    rdev->family == CHIP_R350) {
478 			ddc_line = RADEON_GPIO_DVI_DDC;
479 			ddc = DDC_DVI;
480 		} else if (rdev->family == CHIP_RS300 ||
481 			   rdev->family == CHIP_RS400 ||
482 			   rdev->family == CHIP_RS480)
483 			ddc_line = RADEON_GPIO_MONID;
484 		else if (rdev->family >= CHIP_RV350) {
485 			ddc_line = RADEON_GPIO_MONID;
486 			ddc = DDC_MONID;
487 		} else
488 			ddc_line = RADEON_GPIO_CRT2_DDC;
489 		break;
490 	}
491 
492 	if (ddc_line == RADEON_GPIOPAD_MASK) {
493 		i2c.mask_clk_reg = RADEON_GPIOPAD_MASK;
494 		i2c.mask_data_reg = RADEON_GPIOPAD_MASK;
495 		i2c.a_clk_reg = RADEON_GPIOPAD_A;
496 		i2c.a_data_reg = RADEON_GPIOPAD_A;
497 		i2c.en_clk_reg = RADEON_GPIOPAD_EN;
498 		i2c.en_data_reg = RADEON_GPIOPAD_EN;
499 		i2c.y_clk_reg = RADEON_GPIOPAD_Y;
500 		i2c.y_data_reg = RADEON_GPIOPAD_Y;
501 	} else if (ddc_line == RADEON_MDGPIO_MASK) {
502 		i2c.mask_clk_reg = RADEON_MDGPIO_MASK;
503 		i2c.mask_data_reg = RADEON_MDGPIO_MASK;
504 		i2c.a_clk_reg = RADEON_MDGPIO_A;
505 		i2c.a_data_reg = RADEON_MDGPIO_A;
506 		i2c.en_clk_reg = RADEON_MDGPIO_EN;
507 		i2c.en_data_reg = RADEON_MDGPIO_EN;
508 		i2c.y_clk_reg = RADEON_MDGPIO_Y;
509 		i2c.y_data_reg = RADEON_MDGPIO_Y;
510 	} else {
511 		i2c.mask_clk_reg = ddc_line;
512 		i2c.mask_data_reg = ddc_line;
513 		i2c.a_clk_reg = ddc_line;
514 		i2c.a_data_reg = ddc_line;
515 		i2c.en_clk_reg = ddc_line;
516 		i2c.en_data_reg = ddc_line;
517 		i2c.y_clk_reg = ddc_line;
518 		i2c.y_data_reg = ddc_line;
519 	}
520 
521 	if (clk_mask && data_mask) {
522 		/* system specific masks */
523 		i2c.mask_clk_mask = clk_mask;
524 		i2c.mask_data_mask = data_mask;
525 		i2c.a_clk_mask = clk_mask;
526 		i2c.a_data_mask = data_mask;
527 		i2c.en_clk_mask = clk_mask;
528 		i2c.en_data_mask = data_mask;
529 		i2c.y_clk_mask = clk_mask;
530 		i2c.y_data_mask = data_mask;
531 	} else if ((ddc_line == RADEON_GPIOPAD_MASK) ||
532 		   (ddc_line == RADEON_MDGPIO_MASK)) {
533 		/* default gpiopad masks */
534 		i2c.mask_clk_mask = (0x20 << 8);
535 		i2c.mask_data_mask = 0x80;
536 		i2c.a_clk_mask = (0x20 << 8);
537 		i2c.a_data_mask = 0x80;
538 		i2c.en_clk_mask = (0x20 << 8);
539 		i2c.en_data_mask = 0x80;
540 		i2c.y_clk_mask = (0x20 << 8);
541 		i2c.y_data_mask = 0x80;
542 	} else {
543 		/* default masks for ddc pads */
544 		i2c.mask_clk_mask = RADEON_GPIO_MASK_1;
545 		i2c.mask_data_mask = RADEON_GPIO_MASK_0;
546 		i2c.a_clk_mask = RADEON_GPIO_A_1;
547 		i2c.a_data_mask = RADEON_GPIO_A_0;
548 		i2c.en_clk_mask = RADEON_GPIO_EN_1;
549 		i2c.en_data_mask = RADEON_GPIO_EN_0;
550 		i2c.y_clk_mask = RADEON_GPIO_Y_1;
551 		i2c.y_data_mask = RADEON_GPIO_Y_0;
552 	}
553 
554 	switch (rdev->family) {
555 	case CHIP_R100:
556 	case CHIP_RV100:
557 	case CHIP_RS100:
558 	case CHIP_RV200:
559 	case CHIP_RS200:
560 	case CHIP_RS300:
561 		switch (ddc_line) {
562 		case RADEON_GPIO_DVI_DDC:
563 			i2c.hw_capable = true;
564 			break;
565 		default:
566 			i2c.hw_capable = false;
567 			break;
568 		}
569 		break;
570 	case CHIP_R200:
571 		switch (ddc_line) {
572 		case RADEON_GPIO_DVI_DDC:
573 		case RADEON_GPIO_MONID:
574 			i2c.hw_capable = true;
575 			break;
576 		default:
577 			i2c.hw_capable = false;
578 			break;
579 		}
580 		break;
581 	case CHIP_RV250:
582 	case CHIP_RV280:
583 		switch (ddc_line) {
584 		case RADEON_GPIO_VGA_DDC:
585 		case RADEON_GPIO_DVI_DDC:
586 		case RADEON_GPIO_CRT2_DDC:
587 			i2c.hw_capable = true;
588 			break;
589 		default:
590 			i2c.hw_capable = false;
591 			break;
592 		}
593 		break;
594 	case CHIP_R300:
595 	case CHIP_R350:
596 		switch (ddc_line) {
597 		case RADEON_GPIO_VGA_DDC:
598 		case RADEON_GPIO_DVI_DDC:
599 			i2c.hw_capable = true;
600 			break;
601 		default:
602 			i2c.hw_capable = false;
603 			break;
604 		}
605 		break;
606 	case CHIP_RV350:
607 	case CHIP_RV380:
608 	case CHIP_RS400:
609 	case CHIP_RS480:
610 		switch (ddc_line) {
611 		case RADEON_GPIO_VGA_DDC:
612 		case RADEON_GPIO_DVI_DDC:
613 			i2c.hw_capable = true;
614 			break;
615 		case RADEON_GPIO_MONID:
616 			/* hw i2c on RADEON_GPIO_MONID doesn't seem to work
617 			 * reliably on some pre-r4xx hardware; not sure why.
618 			 */
619 			i2c.hw_capable = false;
620 			break;
621 		default:
622 			i2c.hw_capable = false;
623 			break;
624 		}
625 		break;
626 	default:
627 		i2c.hw_capable = false;
628 		break;
629 	}
630 	i2c.mm_i2c = false;
631 
632 	i2c.i2c_id = ddc;
633 	i2c.hpd = RADEON_HPD_NONE;
634 
635 	if (ddc_line)
636 		i2c.valid = true;
637 	else
638 		i2c.valid = false;
639 
640 	return i2c;
641 }
642 
643 static struct radeon_i2c_bus_rec radeon_combios_get_i2c_info_from_table(struct radeon_device *rdev)
644 {
645 	struct drm_device *dev = rdev->ddev;
646 	struct radeon_i2c_bus_rec i2c;
647 	u16 offset;
648 	u8 id, blocks, clk, data;
649 	int i;
650 
651 	i2c.valid = false;
652 
653 	offset = combios_get_table_offset(dev, COMBIOS_I2C_INFO_TABLE);
654 	if (offset) {
655 		blocks = RBIOS8(offset + 2);
656 		for (i = 0; i < blocks; i++) {
657 			id = RBIOS8(offset + 3 + (i * 5) + 0);
658 			if (id == 136) {
659 				clk = RBIOS8(offset + 3 + (i * 5) + 3);
660 				data = RBIOS8(offset + 3 + (i * 5) + 4);
661 				/* gpiopad */
662 				i2c = combios_setup_i2c_bus(rdev, DDC_MONID,
663 							    (1 << clk), (1 << data));
664 				break;
665 			}
666 		}
667 	}
668 	return i2c;
669 }
670 
671 void radeon_combios_i2c_init(struct radeon_device *rdev)
672 {
673 	struct drm_device *dev = rdev->ddev;
674 	struct radeon_i2c_bus_rec i2c;
675 
676 	/* actual hw pads
677 	 * r1xx/rs2xx/rs3xx
678 	 * 0x60, 0x64, 0x68, 0x6c, gpiopads, mm
679 	 * r200
680 	 * 0x60, 0x64, 0x68, mm
681 	 * r300/r350
682 	 * 0x60, 0x64, mm
683 	 * rv2xx/rv3xx/rs4xx
684 	 * 0x60, 0x64, 0x68, gpiopads, mm
685 	 */
686 
687 	/* 0x60 */
688 	i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
689 	rdev->i2c_bus[0] = radeon_i2c_create(dev, &i2c, "DVI_DDC");
690 	/* 0x64 */
691 	i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
692 	rdev->i2c_bus[1] = radeon_i2c_create(dev, &i2c, "VGA_DDC");
693 
694 	/* mm i2c */
695 	i2c.valid = true;
696 	i2c.hw_capable = true;
697 	i2c.mm_i2c = true;
698 	i2c.i2c_id = 0xa0;
699 	rdev->i2c_bus[2] = radeon_i2c_create(dev, &i2c, "MM_I2C");
700 
701 	if (rdev->family == CHIP_R300 ||
702 	    rdev->family == CHIP_R350) {
703 		/* only 2 sw i2c pads */
704 	} else if (rdev->family == CHIP_RS300 ||
705 		   rdev->family == CHIP_RS400 ||
706 		   rdev->family == CHIP_RS480) {
707 		/* 0x68 */
708 		i2c = combios_setup_i2c_bus(rdev, DDC_CRT2, 0, 0);
709 		rdev->i2c_bus[3] = radeon_i2c_create(dev, &i2c, "MONID");
710 
711 		/* gpiopad */
712 		i2c = radeon_combios_get_i2c_info_from_table(rdev);
713 		if (i2c.valid)
714 			rdev->i2c_bus[4] = radeon_i2c_create(dev, &i2c, "GPIOPAD_MASK");
715 	} else if ((rdev->family == CHIP_R200) ||
716 		   (rdev->family >= CHIP_R300)) {
717 		/* 0x68 */
718 		i2c = combios_setup_i2c_bus(rdev, DDC_MONID, 0, 0);
719 		rdev->i2c_bus[3] = radeon_i2c_create(dev, &i2c, "MONID");
720 	} else {
721 		/* 0x68 */
722 		i2c = combios_setup_i2c_bus(rdev, DDC_MONID, 0, 0);
723 		rdev->i2c_bus[3] = radeon_i2c_create(dev, &i2c, "MONID");
724 		/* 0x6c */
725 		i2c = combios_setup_i2c_bus(rdev, DDC_CRT2, 0, 0);
726 		rdev->i2c_bus[4] = radeon_i2c_create(dev, &i2c, "CRT2_DDC");
727 	}
728 }
729 
730 bool radeon_combios_get_clock_info(struct drm_device *dev)
731 {
732 	struct radeon_device *rdev = dev->dev_private;
733 	uint16_t pll_info;
734 	struct radeon_pll *p1pll = &rdev->clock.p1pll;
735 	struct radeon_pll *p2pll = &rdev->clock.p2pll;
736 	struct radeon_pll *spll = &rdev->clock.spll;
737 	struct radeon_pll *mpll = &rdev->clock.mpll;
738 	int8_t rev;
739 	uint16_t sclk, mclk;
740 
741 	pll_info = combios_get_table_offset(dev, COMBIOS_PLL_INFO_TABLE);
742 	if (pll_info) {
743 		rev = RBIOS8(pll_info);
744 
745 		/* pixel clocks */
746 		p1pll->reference_freq = RBIOS16(pll_info + 0xe);
747 		p1pll->reference_div = RBIOS16(pll_info + 0x10);
748 		p1pll->pll_out_min = RBIOS32(pll_info + 0x12);
749 		p1pll->pll_out_max = RBIOS32(pll_info + 0x16);
750 		p1pll->lcd_pll_out_min = p1pll->pll_out_min;
751 		p1pll->lcd_pll_out_max = p1pll->pll_out_max;
752 
753 		if (rev > 9) {
754 			p1pll->pll_in_min = RBIOS32(pll_info + 0x36);
755 			p1pll->pll_in_max = RBIOS32(pll_info + 0x3a);
756 		} else {
757 			p1pll->pll_in_min = 40;
758 			p1pll->pll_in_max = 500;
759 		}
760 		*p2pll = *p1pll;
761 
762 		/* system clock */
763 		spll->reference_freq = RBIOS16(pll_info + 0x1a);
764 		spll->reference_div = RBIOS16(pll_info + 0x1c);
765 		spll->pll_out_min = RBIOS32(pll_info + 0x1e);
766 		spll->pll_out_max = RBIOS32(pll_info + 0x22);
767 
768 		if (rev > 10) {
769 			spll->pll_in_min = RBIOS32(pll_info + 0x48);
770 			spll->pll_in_max = RBIOS32(pll_info + 0x4c);
771 		} else {
772 			/* ??? */
773 			spll->pll_in_min = 40;
774 			spll->pll_in_max = 500;
775 		}
776 
777 		/* memory clock */
778 		mpll->reference_freq = RBIOS16(pll_info + 0x26);
779 		mpll->reference_div = RBIOS16(pll_info + 0x28);
780 		mpll->pll_out_min = RBIOS32(pll_info + 0x2a);
781 		mpll->pll_out_max = RBIOS32(pll_info + 0x2e);
782 
783 		if (rev > 10) {
784 			mpll->pll_in_min = RBIOS32(pll_info + 0x5a);
785 			mpll->pll_in_max = RBIOS32(pll_info + 0x5e);
786 		} else {
787 			/* ??? */
788 			mpll->pll_in_min = 40;
789 			mpll->pll_in_max = 500;
790 		}
791 
792 		/* default sclk/mclk */
793 		sclk = RBIOS16(pll_info + 0xa);
794 		mclk = RBIOS16(pll_info + 0x8);
795 		if (sclk == 0)
796 			sclk = 200 * 100;
797 		if (mclk == 0)
798 			mclk = 200 * 100;
799 
800 		rdev->clock.default_sclk = sclk;
801 		rdev->clock.default_mclk = mclk;
802 
803 		if (RBIOS32(pll_info + 0x16))
804 			rdev->clock.max_pixel_clock = RBIOS32(pll_info + 0x16);
805 		else
806 			rdev->clock.max_pixel_clock = 35000; /* might need something asic specific */
807 
808 		return true;
809 	}
810 	return false;
811 }
812 
813 bool radeon_combios_sideport_present(struct radeon_device *rdev)
814 {
815 	struct drm_device *dev = rdev->ddev;
816 	u16 igp_info;
817 
818 	/* sideport is AMD only */
819 	if (rdev->family == CHIP_RS400)
820 		return false;
821 
822 	igp_info = combios_get_table_offset(dev, COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE);
823 
824 	if (igp_info) {
825 		if (RBIOS16(igp_info + 0x4))
826 			return true;
827 	}
828 	return false;
829 }
830 
831 static const uint32_t default_primarydac_adj[CHIP_LAST] = {
832 	0x00000808,		/* r100  */
833 	0x00000808,		/* rv100 */
834 	0x00000808,		/* rs100 */
835 	0x00000808,		/* rv200 */
836 	0x00000808,		/* rs200 */
837 	0x00000808,		/* r200  */
838 	0x00000808,		/* rv250 */
839 	0x00000000,		/* rs300 */
840 	0x00000808,		/* rv280 */
841 	0x00000808,		/* r300  */
842 	0x00000808,		/* r350  */
843 	0x00000808,		/* rv350 */
844 	0x00000808,		/* rv380 */
845 	0x00000808,		/* r420  */
846 	0x00000808,		/* r423  */
847 	0x00000808,		/* rv410 */
848 	0x00000000,		/* rs400 */
849 	0x00000000,		/* rs480 */
850 };
851 
852 static void radeon_legacy_get_primary_dac_info_from_table(struct radeon_device *rdev,
853 							  struct radeon_encoder_primary_dac *p_dac)
854 {
855 	p_dac->ps2_pdac_adj = default_primarydac_adj[rdev->family];
856 	return;
857 }
858 
859 struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct
860 								       radeon_encoder
861 								       *encoder)
862 {
863 	struct drm_device *dev = encoder->base.dev;
864 	struct radeon_device *rdev = dev->dev_private;
865 	uint16_t dac_info;
866 	uint8_t rev, bg, dac;
867 	struct radeon_encoder_primary_dac *p_dac = NULL;
868 	int found = 0;
869 
870 	p_dac = kzalloc(sizeof(struct radeon_encoder_primary_dac),
871 			GFP_KERNEL);
872 
873 	if (!p_dac)
874 		return NULL;
875 
876 	/* check CRT table */
877 	dac_info = combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
878 	if (dac_info) {
879 		rev = RBIOS8(dac_info) & 0x3;
880 		if (rev < 2) {
881 			bg = RBIOS8(dac_info + 0x2) & 0xf;
882 			dac = (RBIOS8(dac_info + 0x2) >> 4) & 0xf;
883 			p_dac->ps2_pdac_adj = (bg << 8) | (dac);
884 		} else {
885 			bg = RBIOS8(dac_info + 0x2) & 0xf;
886 			dac = RBIOS8(dac_info + 0x3) & 0xf;
887 			p_dac->ps2_pdac_adj = (bg << 8) | (dac);
888 		}
889 		/* if the values are zeros, use the table */
890 		if ((dac == 0) || (bg == 0))
891 			found = 0;
892 		else
893 			found = 1;
894 	}
895 
896 	/* quirks */
897 	/* Radeon 7000 (RV100) */
898 	if (((dev->pdev->device == 0x5159) &&
899 	    (dev->pdev->subsystem_vendor == 0x174B) &&
900 	    (dev->pdev->subsystem_device == 0x7c28)) ||
901 	/* Radeon 9100 (R200) */
902 	   ((dev->pdev->device == 0x514D) &&
903 	    (dev->pdev->subsystem_vendor == 0x174B) &&
904 	    (dev->pdev->subsystem_device == 0x7149))) {
905 		/* vbios value is bad, use the default */
906 		found = 0;
907 	}
908 
909 	if (!found) /* fallback to defaults */
910 		radeon_legacy_get_primary_dac_info_from_table(rdev, p_dac);
911 
912 	return p_dac;
913 }
914 
915 enum radeon_tv_std
916 radeon_combios_get_tv_info(struct radeon_device *rdev)
917 {
918 	struct drm_device *dev = rdev->ddev;
919 	uint16_t tv_info;
920 	enum radeon_tv_std tv_std = TV_STD_NTSC;
921 
922 	tv_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
923 	if (tv_info) {
924 		if (RBIOS8(tv_info + 6) == 'T') {
925 			switch (RBIOS8(tv_info + 7) & 0xf) {
926 			case 1:
927 				tv_std = TV_STD_NTSC;
928 				DRM_DEBUG_KMS("Default TV standard: NTSC\n");
929 				break;
930 			case 2:
931 				tv_std = TV_STD_PAL;
932 				DRM_DEBUG_KMS("Default TV standard: PAL\n");
933 				break;
934 			case 3:
935 				tv_std = TV_STD_PAL_M;
936 				DRM_DEBUG_KMS("Default TV standard: PAL-M\n");
937 				break;
938 			case 4:
939 				tv_std = TV_STD_PAL_60;
940 				DRM_DEBUG_KMS("Default TV standard: PAL-60\n");
941 				break;
942 			case 5:
943 				tv_std = TV_STD_NTSC_J;
944 				DRM_DEBUG_KMS("Default TV standard: NTSC-J\n");
945 				break;
946 			case 6:
947 				tv_std = TV_STD_SCART_PAL;
948 				DRM_DEBUG_KMS("Default TV standard: SCART-PAL\n");
949 				break;
950 			default:
951 				tv_std = TV_STD_NTSC;
952 				DRM_DEBUG_KMS
953 				    ("Unknown TV standard; defaulting to NTSC\n");
954 				break;
955 			}
956 
957 			switch ((RBIOS8(tv_info + 9) >> 2) & 0x3) {
958 			case 0:
959 				DRM_DEBUG_KMS("29.498928713 MHz TV ref clk\n");
960 				break;
961 			case 1:
962 				DRM_DEBUG_KMS("28.636360000 MHz TV ref clk\n");
963 				break;
964 			case 2:
965 				DRM_DEBUG_KMS("14.318180000 MHz TV ref clk\n");
966 				break;
967 			case 3:
968 				DRM_DEBUG_KMS("27.000000000 MHz TV ref clk\n");
969 				break;
970 			default:
971 				break;
972 			}
973 		}
974 	}
975 	return tv_std;
976 }
977 
978 static const uint32_t default_tvdac_adj[CHIP_LAST] = {
979 	0x00000000,		/* r100  */
980 	0x00280000,		/* rv100 */
981 	0x00000000,		/* rs100 */
982 	0x00880000,		/* rv200 */
983 	0x00000000,		/* rs200 */
984 	0x00000000,		/* r200  */
985 	0x00770000,		/* rv250 */
986 	0x00290000,		/* rs300 */
987 	0x00560000,		/* rv280 */
988 	0x00780000,		/* r300  */
989 	0x00770000,		/* r350  */
990 	0x00780000,		/* rv350 */
991 	0x00780000,		/* rv380 */
992 	0x01080000,		/* r420  */
993 	0x01080000,		/* r423  */
994 	0x01080000,		/* rv410 */
995 	0x00780000,		/* rs400 */
996 	0x00780000,		/* rs480 */
997 };
998 
999 static void radeon_legacy_get_tv_dac_info_from_table(struct radeon_device *rdev,
1000 						     struct radeon_encoder_tv_dac *tv_dac)
1001 {
1002 	tv_dac->ps2_tvdac_adj = default_tvdac_adj[rdev->family];
1003 	if ((rdev->flags & RADEON_IS_MOBILITY) && (rdev->family == CHIP_RV250))
1004 		tv_dac->ps2_tvdac_adj = 0x00880000;
1005 	tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
1006 	tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
1007 	return;
1008 }
1009 
1010 struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
1011 							     radeon_encoder
1012 							     *encoder)
1013 {
1014 	struct drm_device *dev = encoder->base.dev;
1015 	struct radeon_device *rdev = dev->dev_private;
1016 	uint16_t dac_info;
1017 	uint8_t rev, bg, dac;
1018 	struct radeon_encoder_tv_dac *tv_dac = NULL;
1019 	int found = 0;
1020 
1021 	tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL);
1022 	if (!tv_dac)
1023 		return NULL;
1024 
1025 	/* first check TV table */
1026 	dac_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
1027 	if (dac_info) {
1028 		rev = RBIOS8(dac_info + 0x3);
1029 		if (rev > 4) {
1030 			bg = RBIOS8(dac_info + 0xc) & 0xf;
1031 			dac = RBIOS8(dac_info + 0xd) & 0xf;
1032 			tv_dac->ps2_tvdac_adj = (bg << 16) | (dac << 20);
1033 
1034 			bg = RBIOS8(dac_info + 0xe) & 0xf;
1035 			dac = RBIOS8(dac_info + 0xf) & 0xf;
1036 			tv_dac->pal_tvdac_adj = (bg << 16) | (dac << 20);
1037 
1038 			bg = RBIOS8(dac_info + 0x10) & 0xf;
1039 			dac = RBIOS8(dac_info + 0x11) & 0xf;
1040 			tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);
1041 			/* if the values are all zeros, use the table */
1042 			if (tv_dac->ps2_tvdac_adj)
1043 				found = 1;
1044 		} else if (rev > 1) {
1045 			bg = RBIOS8(dac_info + 0xc) & 0xf;
1046 			dac = (RBIOS8(dac_info + 0xc) >> 4) & 0xf;
1047 			tv_dac->ps2_tvdac_adj = (bg << 16) | (dac << 20);
1048 
1049 			bg = RBIOS8(dac_info + 0xd) & 0xf;
1050 			dac = (RBIOS8(dac_info + 0xd) >> 4) & 0xf;
1051 			tv_dac->pal_tvdac_adj = (bg << 16) | (dac << 20);
1052 
1053 			bg = RBIOS8(dac_info + 0xe) & 0xf;
1054 			dac = (RBIOS8(dac_info + 0xe) >> 4) & 0xf;
1055 			tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);
1056 			/* if the values are all zeros, use the table */
1057 			if (tv_dac->ps2_tvdac_adj)
1058 				found = 1;
1059 		}
1060 		tv_dac->tv_std = radeon_combios_get_tv_info(rdev);
1061 	}
1062 	if (!found) {
1063 		/* then check CRT table */
1064 		dac_info =
1065 		    combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
1066 		if (dac_info) {
1067 			rev = RBIOS8(dac_info) & 0x3;
1068 			if (rev < 2) {
1069 				bg = RBIOS8(dac_info + 0x3) & 0xf;
1070 				dac = (RBIOS8(dac_info + 0x3) >> 4) & 0xf;
1071 				tv_dac->ps2_tvdac_adj =
1072 				    (bg << 16) | (dac << 20);
1073 				tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
1074 				tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
1075 				/* if the values are all zeros, use the table */
1076 				if (tv_dac->ps2_tvdac_adj)
1077 					found = 1;
1078 			} else {
1079 				bg = RBIOS8(dac_info + 0x4) & 0xf;
1080 				dac = RBIOS8(dac_info + 0x5) & 0xf;
1081 				tv_dac->ps2_tvdac_adj =
1082 				    (bg << 16) | (dac << 20);
1083 				tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
1084 				tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
1085 				/* if the values are all zeros, use the table */
1086 				if (tv_dac->ps2_tvdac_adj)
1087 					found = 1;
1088 			}
1089 		} else {
1090 			DRM_INFO("No TV DAC info found in BIOS\n");
1091 		}
1092 	}
1093 
1094 	if (!found) /* fallback to defaults */
1095 		radeon_legacy_get_tv_dac_info_from_table(rdev, tv_dac);
1096 
1097 	return tv_dac;
1098 }
1099 
1100 static struct radeon_encoder_lvds *radeon_legacy_get_lvds_info_from_regs(struct
1101 									 radeon_device
1102 									 *rdev)
1103 {
1104 	struct radeon_encoder_lvds *lvds = NULL;
1105 	uint32_t fp_vert_stretch, fp_horz_stretch;
1106 	uint32_t ppll_div_sel, ppll_val;
1107 	uint32_t lvds_ss_gen_cntl = RREG32(RADEON_LVDS_SS_GEN_CNTL);
1108 
1109 	lvds = kzalloc(sizeof(struct radeon_encoder_lvds), GFP_KERNEL);
1110 
1111 	if (!lvds)
1112 		return NULL;
1113 
1114 	fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH);
1115 	fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH);
1116 
1117 	/* These should be fail-safe defaults, fingers crossed */
1118 	lvds->panel_pwr_delay = 200;
1119 	lvds->panel_vcc_delay = 2000;
1120 
1121 	lvds->lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
1122 	lvds->panel_digon_delay = (lvds_ss_gen_cntl >> RADEON_LVDS_PWRSEQ_DELAY1_SHIFT) & 0xf;
1123 	lvds->panel_blon_delay = (lvds_ss_gen_cntl >> RADEON_LVDS_PWRSEQ_DELAY2_SHIFT) & 0xf;
1124 
1125 	if (fp_vert_stretch & RADEON_VERT_STRETCH_ENABLE)
1126 		lvds->native_mode.vdisplay =
1127 		    ((fp_vert_stretch & RADEON_VERT_PANEL_SIZE) >>
1128 		     RADEON_VERT_PANEL_SHIFT) + 1;
1129 	else
1130 		lvds->native_mode.vdisplay =
1131 		    (RREG32(RADEON_CRTC_V_TOTAL_DISP) >> 16) + 1;
1132 
1133 	if (fp_horz_stretch & RADEON_HORZ_STRETCH_ENABLE)
1134 		lvds->native_mode.hdisplay =
1135 		    (((fp_horz_stretch & RADEON_HORZ_PANEL_SIZE) >>
1136 		      RADEON_HORZ_PANEL_SHIFT) + 1) * 8;
1137 	else
1138 		lvds->native_mode.hdisplay =
1139 		    ((RREG32(RADEON_CRTC_H_TOTAL_DISP) >> 16) + 1) * 8;
1140 
1141 	if ((lvds->native_mode.hdisplay < 640) ||
1142 	    (lvds->native_mode.vdisplay < 480)) {
1143 		lvds->native_mode.hdisplay = 640;
1144 		lvds->native_mode.vdisplay = 480;
1145 	}
1146 
1147 	ppll_div_sel = RREG8(RADEON_CLOCK_CNTL_INDEX + 1) & 0x3;
1148 	ppll_val = RREG32_PLL(RADEON_PPLL_DIV_0 + ppll_div_sel);
1149 	if ((ppll_val & 0x000707ff) == 0x1bb)
1150 		lvds->use_bios_dividers = false;
1151 	else {
1152 		lvds->panel_ref_divider =
1153 		    RREG32_PLL(RADEON_PPLL_REF_DIV) & 0x3ff;
1154 		lvds->panel_post_divider = (ppll_val >> 16) & 0x7;
1155 		lvds->panel_fb_divider = ppll_val & 0x7ff;
1156 
1157 		if ((lvds->panel_ref_divider != 0) &&
1158 		    (lvds->panel_fb_divider > 3))
1159 			lvds->use_bios_dividers = true;
1160 	}
1161 	lvds->panel_vcc_delay = 200;
1162 
1163 	DRM_INFO("Panel info derived from registers\n");
1164 	DRM_INFO("Panel Size %dx%d\n", lvds->native_mode.hdisplay,
1165 		 lvds->native_mode.vdisplay);
1166 
1167 	return lvds;
1168 }
1169 
1170 struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
1171 							 *encoder)
1172 {
1173 	struct drm_device *dev = encoder->base.dev;
1174 	struct radeon_device *rdev = dev->dev_private;
1175 	uint16_t lcd_info;
1176 	uint32_t panel_setup;
1177 	char stmp[30];
1178 	int tmp, i;
1179 	struct radeon_encoder_lvds *lvds = NULL;
1180 
1181 	lcd_info = combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);
1182 
1183 	if (lcd_info) {
1184 		lvds = kzalloc(sizeof(struct radeon_encoder_lvds), GFP_KERNEL);
1185 
1186 		if (!lvds)
1187 			return NULL;
1188 
1189 		for (i = 0; i < 24; i++)
1190 			stmp[i] = RBIOS8(lcd_info + i + 1);
1191 		stmp[24] = 0;
1192 
1193 		DRM_INFO("Panel ID String: %s\n", stmp);
1194 
1195 		lvds->native_mode.hdisplay = RBIOS16(lcd_info + 0x19);
1196 		lvds->native_mode.vdisplay = RBIOS16(lcd_info + 0x1b);
1197 
1198 		DRM_INFO("Panel Size %dx%d\n", lvds->native_mode.hdisplay,
1199 			 lvds->native_mode.vdisplay);
1200 
1201 		lvds->panel_vcc_delay = RBIOS16(lcd_info + 0x2c);
1202 		lvds->panel_vcc_delay = min_t(u16, lvds->panel_vcc_delay, 2000);
1203 
1204 		lvds->panel_pwr_delay = RBIOS8(lcd_info + 0x24);
1205 		lvds->panel_digon_delay = RBIOS16(lcd_info + 0x38) & 0xf;
1206 		lvds->panel_blon_delay = (RBIOS16(lcd_info + 0x38) >> 4) & 0xf;
1207 
1208 		lvds->panel_ref_divider = RBIOS16(lcd_info + 0x2e);
1209 		lvds->panel_post_divider = RBIOS8(lcd_info + 0x30);
1210 		lvds->panel_fb_divider = RBIOS16(lcd_info + 0x31);
1211 		if ((lvds->panel_ref_divider != 0) &&
1212 		    (lvds->panel_fb_divider > 3))
1213 			lvds->use_bios_dividers = true;
1214 
1215 		panel_setup = RBIOS32(lcd_info + 0x39);
1216 		lvds->lvds_gen_cntl = 0xff00;
1217 		if (panel_setup & 0x1)
1218 			lvds->lvds_gen_cntl |= RADEON_LVDS_PANEL_FORMAT;
1219 
1220 		if ((panel_setup >> 4) & 0x1)
1221 			lvds->lvds_gen_cntl |= RADEON_LVDS_PANEL_TYPE;
1222 
1223 		switch ((panel_setup >> 8) & 0x7) {
1224 		case 0:
1225 			lvds->lvds_gen_cntl |= RADEON_LVDS_NO_FM;
1226 			break;
1227 		case 1:
1228 			lvds->lvds_gen_cntl |= RADEON_LVDS_2_GREY;
1229 			break;
1230 		case 2:
1231 			lvds->lvds_gen_cntl |= RADEON_LVDS_4_GREY;
1232 			break;
1233 		default:
1234 			break;
1235 		}
1236 
1237 		if ((panel_setup >> 16) & 0x1)
1238 			lvds->lvds_gen_cntl |= RADEON_LVDS_FP_POL_LOW;
1239 
1240 		if ((panel_setup >> 17) & 0x1)
1241 			lvds->lvds_gen_cntl |= RADEON_LVDS_LP_POL_LOW;
1242 
1243 		if ((panel_setup >> 18) & 0x1)
1244 			lvds->lvds_gen_cntl |= RADEON_LVDS_DTM_POL_LOW;
1245 
1246 		if ((panel_setup >> 23) & 0x1)
1247 			lvds->lvds_gen_cntl |= RADEON_LVDS_BL_CLK_SEL;
1248 
1249 		lvds->lvds_gen_cntl |= (panel_setup & 0xf0000000);
1250 
1251 		for (i = 0; i < 32; i++) {
1252 			tmp = RBIOS16(lcd_info + 64 + i * 2);
1253 			if (tmp == 0)
1254 				break;
1255 
1256 			if ((RBIOS16(tmp) == lvds->native_mode.hdisplay) &&
1257 			    (RBIOS16(tmp + 2) == lvds->native_mode.vdisplay)) {
1258 				lvds->native_mode.htotal = lvds->native_mode.hdisplay +
1259 					(RBIOS16(tmp + 17) - RBIOS16(tmp + 19)) * 8;
1260 				lvds->native_mode.hsync_start = lvds->native_mode.hdisplay +
1261 					(RBIOS16(tmp + 21) - RBIOS16(tmp + 19) - 1) * 8;
1262 				lvds->native_mode.hsync_end = lvds->native_mode.hsync_start +
1263 					(RBIOS8(tmp + 23) * 8);
1264 
1265 				lvds->native_mode.vtotal = lvds->native_mode.vdisplay +
1266 					(RBIOS16(tmp + 24) - RBIOS16(tmp + 26));
1267 				lvds->native_mode.vsync_start = lvds->native_mode.vdisplay +
1268 					((RBIOS16(tmp + 28) & 0x7ff) - RBIOS16(tmp + 26));
1269 				lvds->native_mode.vsync_end = lvds->native_mode.vsync_start +
1270 					((RBIOS16(tmp + 28) & 0xf800) >> 11);
1271 
1272 				lvds->native_mode.clock = RBIOS16(tmp + 9) * 10;
1273 				lvds->native_mode.flags = 0;
1274 				/* set crtc values */
1275 				drm_mode_set_crtcinfo(&lvds->native_mode, CRTC_INTERLACE_HALVE_V);
1276 
1277 			}
1278 		}
1279 	} else {
1280 		DRM_INFO("No panel info found in BIOS\n");
1281 		lvds = radeon_legacy_get_lvds_info_from_regs(rdev);
1282 	}
1283 
1284 	if (lvds)
1285 		encoder->native_mode = lvds->native_mode;
1286 	return lvds;
1287 }
1288 
1289 static const struct radeon_tmds_pll default_tmds_pll[CHIP_LAST][4] = {
1290 	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_R100  */
1291 	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RV100 */
1292 	{{0, 0}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RS100 */
1293 	{{15000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RV200 */
1294 	{{12000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_RS200 */
1295 	{{15000, 0xa1b}, {0xffffffff, 0xa3f}, {0, 0}, {0, 0}},	/* CHIP_R200  */
1296 	{{15500, 0x81b}, {0xffffffff, 0x83f}, {0, 0}, {0, 0}},	/* CHIP_RV250 */
1297 	{{0, 0}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RS300 */
1298 	{{13000, 0x400f4}, {15000, 0x400f7}, {0xffffffff, 0x40111}, {0, 0}},	/* CHIP_RV280 */
1299 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R300  */
1300 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R350  */
1301 	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RV350 */
1302 	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RV380 */
1303 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R420  */
1304 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_R423  */
1305 	{{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},	/* CHIP_RV410 */
1306 	{ {0, 0}, {0, 0}, {0, 0}, {0, 0} },	/* CHIP_RS400 */
1307 	{ {0, 0}, {0, 0}, {0, 0}, {0, 0} },	/* CHIP_RS480 */
1308 };
1309 
1310 bool radeon_legacy_get_tmds_info_from_table(struct radeon_encoder *encoder,
1311 					    struct radeon_encoder_int_tmds *tmds)
1312 {
1313 	struct drm_device *dev = encoder->base.dev;
1314 	struct radeon_device *rdev = dev->dev_private;
1315 	int i;
1316 
1317 	for (i = 0; i < 4; i++) {
1318 		tmds->tmds_pll[i].value =
1319 			default_tmds_pll[rdev->family][i].value;
1320 		tmds->tmds_pll[i].freq = default_tmds_pll[rdev->family][i].freq;
1321 	}
1322 
1323 	return true;
1324 }
1325 
1326 bool radeon_legacy_get_tmds_info_from_combios(struct radeon_encoder *encoder,
1327 					      struct radeon_encoder_int_tmds *tmds)
1328 {
1329 	struct drm_device *dev = encoder->base.dev;
1330 	struct radeon_device *rdev = dev->dev_private;
1331 	uint16_t tmds_info;
1332 	int i, n;
1333 	uint8_t ver;
1334 
1335 	tmds_info = combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);
1336 
1337 	if (tmds_info) {
1338 		ver = RBIOS8(tmds_info);
1339 		DRM_DEBUG_KMS("DFP table revision: %d\n", ver);
1340 		if (ver == 3) {
1341 			n = RBIOS8(tmds_info + 5) + 1;
1342 			if (n > 4)
1343 				n = 4;
1344 			for (i = 0; i < n; i++) {
1345 				tmds->tmds_pll[i].value =
1346 				    RBIOS32(tmds_info + i * 10 + 0x08);
1347 				tmds->tmds_pll[i].freq =
1348 				    RBIOS16(tmds_info + i * 10 + 0x10);
1349 				DRM_DEBUG_KMS("TMDS PLL From COMBIOS %u %x\n",
1350 					  tmds->tmds_pll[i].freq,
1351 					  tmds->tmds_pll[i].value);
1352 			}
1353 		} else if (ver == 4) {
1354 			int stride = 0;
1355 			n = RBIOS8(tmds_info + 5) + 1;
1356 			if (n > 4)
1357 				n = 4;
1358 			for (i = 0; i < n; i++) {
1359 				tmds->tmds_pll[i].value =
1360 				    RBIOS32(tmds_info + stride + 0x08);
1361 				tmds->tmds_pll[i].freq =
1362 				    RBIOS16(tmds_info + stride + 0x10);
1363 				if (i == 0)
1364 					stride += 10;
1365 				else
1366 					stride += 6;
1367 				DRM_DEBUG_KMS("TMDS PLL From COMBIOS %u %x\n",
1368 					  tmds->tmds_pll[i].freq,
1369 					  tmds->tmds_pll[i].value);
1370 			}
1371 		}
1372 	} else {
1373 		DRM_INFO("No TMDS info found in BIOS\n");
1374 		return false;
1375 	}
1376 	return true;
1377 }
1378 
1379 bool radeon_legacy_get_ext_tmds_info_from_table(struct radeon_encoder *encoder,
1380 						struct radeon_encoder_ext_tmds *tmds)
1381 {
1382 	struct drm_device *dev = encoder->base.dev;
1383 	struct radeon_device *rdev = dev->dev_private;
1384 	struct radeon_i2c_bus_rec i2c_bus;
1385 
1386 	/* default for macs */
1387 	i2c_bus = combios_setup_i2c_bus(rdev, DDC_MONID, 0, 0);
1388 	tmds->i2c_bus = radeon_i2c_lookup(rdev, &i2c_bus);
1389 
1390 	/* XXX some macs have duallink chips */
1391 	switch (rdev->mode_info.connector_table) {
1392 	case CT_POWERBOOK_EXTERNAL:
1393 	case CT_MINI_EXTERNAL:
1394 	default:
1395 		tmds->dvo_chip = DVO_SIL164;
1396 		tmds->slave_addr = 0x70 >> 1; /* 7 bit addressing */
1397 		break;
1398 	}
1399 
1400 	return true;
1401 }
1402 
1403 bool radeon_legacy_get_ext_tmds_info_from_combios(struct radeon_encoder *encoder,
1404 						  struct radeon_encoder_ext_tmds *tmds)
1405 {
1406 	struct drm_device *dev = encoder->base.dev;
1407 	struct radeon_device *rdev = dev->dev_private;
1408 	uint16_t offset;
1409 	uint8_t ver;
1410 	enum radeon_combios_ddc gpio;
1411 	struct radeon_i2c_bus_rec i2c_bus;
1412 
1413 	tmds->i2c_bus = NULL;
1414 	if (rdev->flags & RADEON_IS_IGP) {
1415 		i2c_bus = combios_setup_i2c_bus(rdev, DDC_MONID, 0, 0);
1416 		tmds->i2c_bus = radeon_i2c_lookup(rdev, &i2c_bus);
1417 		tmds->dvo_chip = DVO_SIL164;
1418 		tmds->slave_addr = 0x70 >> 1; /* 7 bit addressing */
1419 	} else {
1420 		offset = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
1421 		if (offset) {
1422 			ver = RBIOS8(offset);
1423 			DRM_DEBUG_KMS("External TMDS Table revision: %d\n", ver);
1424 			tmds->slave_addr = RBIOS8(offset + 4 + 2);
1425 			tmds->slave_addr >>= 1; /* 7 bit addressing */
1426 			gpio = RBIOS8(offset + 4 + 3);
1427 			if (gpio == DDC_LCD) {
1428 				/* MM i2c */
1429 				i2c_bus.valid = true;
1430 				i2c_bus.hw_capable = true;
1431 				i2c_bus.mm_i2c = true;
1432 				i2c_bus.i2c_id = 0xa0;
1433 			} else
1434 				i2c_bus = combios_setup_i2c_bus(rdev, gpio, 0, 0);
1435 			tmds->i2c_bus = radeon_i2c_lookup(rdev, &i2c_bus);
1436 		}
1437 	}
1438 
1439 	if (!tmds->i2c_bus) {
1440 		DRM_INFO("No valid Ext TMDS info found in BIOS\n");
1441 		return false;
1442 	}
1443 
1444 	return true;
1445 }
1446 
1447 bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
1448 {
1449 	struct radeon_device *rdev = dev->dev_private;
1450 	struct radeon_i2c_bus_rec ddc_i2c;
1451 	struct radeon_hpd hpd;
1452 
1453 	rdev->mode_info.connector_table = radeon_connector_table;
1454 	if (rdev->mode_info.connector_table == CT_NONE) {
1455 #ifdef CONFIG_PPC_PMAC
1456 		if (of_machine_is_compatible("PowerBook3,3")) {
1457 			/* powerbook with VGA */
1458 			rdev->mode_info.connector_table = CT_POWERBOOK_VGA;
1459 		} else if (of_machine_is_compatible("PowerBook3,4") ||
1460 			   of_machine_is_compatible("PowerBook3,5")) {
1461 			/* powerbook with internal tmds */
1462 			rdev->mode_info.connector_table = CT_POWERBOOK_INTERNAL;
1463 		} else if (of_machine_is_compatible("PowerBook5,1") ||
1464 			   of_machine_is_compatible("PowerBook5,2") ||
1465 			   of_machine_is_compatible("PowerBook5,3") ||
1466 			   of_machine_is_compatible("PowerBook5,4") ||
1467 			   of_machine_is_compatible("PowerBook5,5")) {
1468 			/* powerbook with external single link tmds (sil164) */
1469 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
1470 		} else if (of_machine_is_compatible("PowerBook5,6")) {
1471 			/* powerbook with external dual or single link tmds */
1472 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
1473 		} else if (of_machine_is_compatible("PowerBook5,7") ||
1474 			   of_machine_is_compatible("PowerBook5,8") ||
1475 			   of_machine_is_compatible("PowerBook5,9")) {
1476 			/* PowerBook6,2 ? */
1477 			/* powerbook with external dual link tmds (sil1178?) */
1478 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
1479 		} else if (of_machine_is_compatible("PowerBook4,1") ||
1480 			   of_machine_is_compatible("PowerBook4,2") ||
1481 			   of_machine_is_compatible("PowerBook4,3") ||
1482 			   of_machine_is_compatible("PowerBook6,3") ||
1483 			   of_machine_is_compatible("PowerBook6,5") ||
1484 			   of_machine_is_compatible("PowerBook6,7")) {
1485 			/* ibook */
1486 			rdev->mode_info.connector_table = CT_IBOOK;
1487 		} else if (of_machine_is_compatible("PowerMac3,5")) {
1488 			/* PowerMac G4 Silver radeon 7500 */
1489 			rdev->mode_info.connector_table = CT_MAC_G4_SILVER;
1490 		} else if (of_machine_is_compatible("PowerMac4,4")) {
1491 			/* emac */
1492 			rdev->mode_info.connector_table = CT_EMAC;
1493 		} else if (of_machine_is_compatible("PowerMac10,1")) {
1494 			/* mini with internal tmds */
1495 			rdev->mode_info.connector_table = CT_MINI_INTERNAL;
1496 		} else if (of_machine_is_compatible("PowerMac10,2")) {
1497 			/* mini with external tmds */
1498 			rdev->mode_info.connector_table = CT_MINI_EXTERNAL;
1499 		} else if (of_machine_is_compatible("PowerMac12,1")) {
1500 			/* PowerMac8,1 ? */
1501 			/* imac g5 isight */
1502 			rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;
1503 		} else if ((rdev->pdev->device == 0x4a48) &&
1504 			   (rdev->pdev->subsystem_vendor == 0x1002) &&
1505 			   (rdev->pdev->subsystem_device == 0x4a48)) {
1506 			/* Mac X800 */
1507 			rdev->mode_info.connector_table = CT_MAC_X800;
1508 		} else if ((of_machine_is_compatible("PowerMac7,2") ||
1509 			    of_machine_is_compatible("PowerMac7,3")) &&
1510 			   (rdev->pdev->device == 0x4150) &&
1511 			   (rdev->pdev->subsystem_vendor == 0x1002) &&
1512 			   (rdev->pdev->subsystem_device == 0x4150)) {
1513 			/* Mac G5 tower 9600 */
1514 			rdev->mode_info.connector_table = CT_MAC_G5_9600;
1515 		} else if ((rdev->pdev->device == 0x4c66) &&
1516 			   (rdev->pdev->subsystem_vendor == 0x1002) &&
1517 			   (rdev->pdev->subsystem_device == 0x4c66)) {
1518 			/* SAM440ep RV250 embedded board */
1519 			rdev->mode_info.connector_table = CT_SAM440EP;
1520 		} else
1521 #endif /* CONFIG_PPC_PMAC */
1522 #ifdef CONFIG_PPC64
1523 		if (ASIC_IS_RN50(rdev))
1524 			rdev->mode_info.connector_table = CT_RN50_POWER;
1525 		else
1526 #endif
1527 			rdev->mode_info.connector_table = CT_GENERIC;
1528 	}
1529 
1530 	switch (rdev->mode_info.connector_table) {
1531 	case CT_GENERIC:
1532 		DRM_INFO("Connector Table: %d (generic)\n",
1533 			 rdev->mode_info.connector_table);
1534 		/* these are the most common settings */
1535 		if (rdev->flags & RADEON_SINGLE_CRTC) {
1536 			/* VGA - primary dac */
1537 			ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1538 			hpd.hpd = RADEON_HPD_NONE;
1539 			radeon_add_legacy_encoder(dev,
1540 						  radeon_get_encoder_enum(dev,
1541 									ATOM_DEVICE_CRT1_SUPPORT,
1542 									1),
1543 						  ATOM_DEVICE_CRT1_SUPPORT);
1544 			radeon_add_legacy_connector(dev, 0,
1545 						    ATOM_DEVICE_CRT1_SUPPORT,
1546 						    DRM_MODE_CONNECTOR_VGA,
1547 						    &ddc_i2c,
1548 						    CONNECTOR_OBJECT_ID_VGA,
1549 						    &hpd);
1550 		} else if (rdev->flags & RADEON_IS_MOBILITY) {
1551 			/* LVDS */
1552 			ddc_i2c = combios_setup_i2c_bus(rdev, DDC_NONE_DETECTED, 0, 0);
1553 			hpd.hpd = RADEON_HPD_NONE;
1554 			radeon_add_legacy_encoder(dev,
1555 						  radeon_get_encoder_enum(dev,
1556 									ATOM_DEVICE_LCD1_SUPPORT,
1557 									0),
1558 						  ATOM_DEVICE_LCD1_SUPPORT);
1559 			radeon_add_legacy_connector(dev, 0,
1560 						    ATOM_DEVICE_LCD1_SUPPORT,
1561 						    DRM_MODE_CONNECTOR_LVDS,
1562 						    &ddc_i2c,
1563 						    CONNECTOR_OBJECT_ID_LVDS,
1564 						    &hpd);
1565 
1566 			/* VGA - primary dac */
1567 			ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1568 			hpd.hpd = RADEON_HPD_NONE;
1569 			radeon_add_legacy_encoder(dev,
1570 						  radeon_get_encoder_enum(dev,
1571 									ATOM_DEVICE_CRT1_SUPPORT,
1572 									1),
1573 						  ATOM_DEVICE_CRT1_SUPPORT);
1574 			radeon_add_legacy_connector(dev, 1,
1575 						    ATOM_DEVICE_CRT1_SUPPORT,
1576 						    DRM_MODE_CONNECTOR_VGA,
1577 						    &ddc_i2c,
1578 						    CONNECTOR_OBJECT_ID_VGA,
1579 						    &hpd);
1580 		} else {
1581 			/* DVI-I - tv dac, int tmds */
1582 			ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
1583 			hpd.hpd = RADEON_HPD_1;
1584 			radeon_add_legacy_encoder(dev,
1585 						  radeon_get_encoder_enum(dev,
1586 									ATOM_DEVICE_DFP1_SUPPORT,
1587 									0),
1588 						  ATOM_DEVICE_DFP1_SUPPORT);
1589 			radeon_add_legacy_encoder(dev,
1590 						  radeon_get_encoder_enum(dev,
1591 									ATOM_DEVICE_CRT2_SUPPORT,
1592 									2),
1593 						  ATOM_DEVICE_CRT2_SUPPORT);
1594 			radeon_add_legacy_connector(dev, 0,
1595 						    ATOM_DEVICE_DFP1_SUPPORT |
1596 						    ATOM_DEVICE_CRT2_SUPPORT,
1597 						    DRM_MODE_CONNECTOR_DVII,
1598 						    &ddc_i2c,
1599 						    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
1600 						    &hpd);
1601 
1602 			/* VGA - primary dac */
1603 			ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1604 			hpd.hpd = RADEON_HPD_NONE;
1605 			radeon_add_legacy_encoder(dev,
1606 						  radeon_get_encoder_enum(dev,
1607 									ATOM_DEVICE_CRT1_SUPPORT,
1608 									1),
1609 						  ATOM_DEVICE_CRT1_SUPPORT);
1610 			radeon_add_legacy_connector(dev, 1,
1611 						    ATOM_DEVICE_CRT1_SUPPORT,
1612 						    DRM_MODE_CONNECTOR_VGA,
1613 						    &ddc_i2c,
1614 						    CONNECTOR_OBJECT_ID_VGA,
1615 						    &hpd);
1616 		}
1617 
1618 		if (rdev->family != CHIP_R100 && rdev->family != CHIP_R200) {
1619 			/* TV - tv dac */
1620 			ddc_i2c.valid = false;
1621 			hpd.hpd = RADEON_HPD_NONE;
1622 			radeon_add_legacy_encoder(dev,
1623 						  radeon_get_encoder_enum(dev,
1624 									ATOM_DEVICE_TV1_SUPPORT,
1625 									2),
1626 						  ATOM_DEVICE_TV1_SUPPORT);
1627 			radeon_add_legacy_connector(dev, 2,
1628 						    ATOM_DEVICE_TV1_SUPPORT,
1629 						    DRM_MODE_CONNECTOR_SVIDEO,
1630 						    &ddc_i2c,
1631 						    CONNECTOR_OBJECT_ID_SVIDEO,
1632 						    &hpd);
1633 		}
1634 		break;
1635 	case CT_IBOOK:
1636 		DRM_INFO("Connector Table: %d (ibook)\n",
1637 			 rdev->mode_info.connector_table);
1638 		/* LVDS */
1639 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
1640 		hpd.hpd = RADEON_HPD_NONE;
1641 		radeon_add_legacy_encoder(dev,
1642 					  radeon_get_encoder_enum(dev,
1643 								ATOM_DEVICE_LCD1_SUPPORT,
1644 								0),
1645 					  ATOM_DEVICE_LCD1_SUPPORT);
1646 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
1647 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
1648 					    CONNECTOR_OBJECT_ID_LVDS,
1649 					    &hpd);
1650 		/* VGA - TV DAC */
1651 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1652 		hpd.hpd = RADEON_HPD_NONE;
1653 		radeon_add_legacy_encoder(dev,
1654 					  radeon_get_encoder_enum(dev,
1655 								ATOM_DEVICE_CRT2_SUPPORT,
1656 								2),
1657 					  ATOM_DEVICE_CRT2_SUPPORT);
1658 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
1659 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1660 					    CONNECTOR_OBJECT_ID_VGA,
1661 					    &hpd);
1662 		/* TV - TV DAC */
1663 		ddc_i2c.valid = false;
1664 		hpd.hpd = RADEON_HPD_NONE;
1665 		radeon_add_legacy_encoder(dev,
1666 					  radeon_get_encoder_enum(dev,
1667 								ATOM_DEVICE_TV1_SUPPORT,
1668 								2),
1669 					  ATOM_DEVICE_TV1_SUPPORT);
1670 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1671 					    DRM_MODE_CONNECTOR_SVIDEO,
1672 					    &ddc_i2c,
1673 					    CONNECTOR_OBJECT_ID_SVIDEO,
1674 					    &hpd);
1675 		break;
1676 	case CT_POWERBOOK_EXTERNAL:
1677 		DRM_INFO("Connector Table: %d (powerbook external tmds)\n",
1678 			 rdev->mode_info.connector_table);
1679 		/* LVDS */
1680 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
1681 		hpd.hpd = RADEON_HPD_NONE;
1682 		radeon_add_legacy_encoder(dev,
1683 					  radeon_get_encoder_enum(dev,
1684 								ATOM_DEVICE_LCD1_SUPPORT,
1685 								0),
1686 					  ATOM_DEVICE_LCD1_SUPPORT);
1687 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
1688 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
1689 					    CONNECTOR_OBJECT_ID_LVDS,
1690 					    &hpd);
1691 		/* DVI-I - primary dac, ext tmds */
1692 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1693 		hpd.hpd = RADEON_HPD_2; /* ??? */
1694 		radeon_add_legacy_encoder(dev,
1695 					  radeon_get_encoder_enum(dev,
1696 								ATOM_DEVICE_DFP2_SUPPORT,
1697 								0),
1698 					  ATOM_DEVICE_DFP2_SUPPORT);
1699 		radeon_add_legacy_encoder(dev,
1700 					  radeon_get_encoder_enum(dev,
1701 								ATOM_DEVICE_CRT1_SUPPORT,
1702 								1),
1703 					  ATOM_DEVICE_CRT1_SUPPORT);
1704 		/* XXX some are SL */
1705 		radeon_add_legacy_connector(dev, 1,
1706 					    ATOM_DEVICE_DFP2_SUPPORT |
1707 					    ATOM_DEVICE_CRT1_SUPPORT,
1708 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
1709 					    CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I,
1710 					    &hpd);
1711 		/* TV - TV DAC */
1712 		ddc_i2c.valid = false;
1713 		hpd.hpd = RADEON_HPD_NONE;
1714 		radeon_add_legacy_encoder(dev,
1715 					  radeon_get_encoder_enum(dev,
1716 								ATOM_DEVICE_TV1_SUPPORT,
1717 								2),
1718 					  ATOM_DEVICE_TV1_SUPPORT);
1719 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1720 					    DRM_MODE_CONNECTOR_SVIDEO,
1721 					    &ddc_i2c,
1722 					    CONNECTOR_OBJECT_ID_SVIDEO,
1723 					    &hpd);
1724 		break;
1725 	case CT_POWERBOOK_INTERNAL:
1726 		DRM_INFO("Connector Table: %d (powerbook internal tmds)\n",
1727 			 rdev->mode_info.connector_table);
1728 		/* LVDS */
1729 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
1730 		hpd.hpd = RADEON_HPD_NONE;
1731 		radeon_add_legacy_encoder(dev,
1732 					  radeon_get_encoder_enum(dev,
1733 								ATOM_DEVICE_LCD1_SUPPORT,
1734 								0),
1735 					  ATOM_DEVICE_LCD1_SUPPORT);
1736 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
1737 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
1738 					    CONNECTOR_OBJECT_ID_LVDS,
1739 					    &hpd);
1740 		/* DVI-I - primary dac, int tmds */
1741 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1742 		hpd.hpd = RADEON_HPD_1; /* ??? */
1743 		radeon_add_legacy_encoder(dev,
1744 					  radeon_get_encoder_enum(dev,
1745 								ATOM_DEVICE_DFP1_SUPPORT,
1746 								0),
1747 					  ATOM_DEVICE_DFP1_SUPPORT);
1748 		radeon_add_legacy_encoder(dev,
1749 					  radeon_get_encoder_enum(dev,
1750 								ATOM_DEVICE_CRT1_SUPPORT,
1751 								1),
1752 					  ATOM_DEVICE_CRT1_SUPPORT);
1753 		radeon_add_legacy_connector(dev, 1,
1754 					    ATOM_DEVICE_DFP1_SUPPORT |
1755 					    ATOM_DEVICE_CRT1_SUPPORT,
1756 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
1757 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
1758 					    &hpd);
1759 		/* TV - TV DAC */
1760 		ddc_i2c.valid = false;
1761 		hpd.hpd = RADEON_HPD_NONE;
1762 		radeon_add_legacy_encoder(dev,
1763 					  radeon_get_encoder_enum(dev,
1764 								ATOM_DEVICE_TV1_SUPPORT,
1765 								2),
1766 					  ATOM_DEVICE_TV1_SUPPORT);
1767 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1768 					    DRM_MODE_CONNECTOR_SVIDEO,
1769 					    &ddc_i2c,
1770 					    CONNECTOR_OBJECT_ID_SVIDEO,
1771 					    &hpd);
1772 		break;
1773 	case CT_POWERBOOK_VGA:
1774 		DRM_INFO("Connector Table: %d (powerbook vga)\n",
1775 			 rdev->mode_info.connector_table);
1776 		/* LVDS */
1777 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
1778 		hpd.hpd = RADEON_HPD_NONE;
1779 		radeon_add_legacy_encoder(dev,
1780 					  radeon_get_encoder_enum(dev,
1781 								ATOM_DEVICE_LCD1_SUPPORT,
1782 								0),
1783 					  ATOM_DEVICE_LCD1_SUPPORT);
1784 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
1785 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
1786 					    CONNECTOR_OBJECT_ID_LVDS,
1787 					    &hpd);
1788 		/* VGA - primary dac */
1789 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1790 		hpd.hpd = RADEON_HPD_NONE;
1791 		radeon_add_legacy_encoder(dev,
1792 					  radeon_get_encoder_enum(dev,
1793 								ATOM_DEVICE_CRT1_SUPPORT,
1794 								1),
1795 					  ATOM_DEVICE_CRT1_SUPPORT);
1796 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT1_SUPPORT,
1797 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1798 					    CONNECTOR_OBJECT_ID_VGA,
1799 					    &hpd);
1800 		/* TV - TV DAC */
1801 		ddc_i2c.valid = false;
1802 		hpd.hpd = RADEON_HPD_NONE;
1803 		radeon_add_legacy_encoder(dev,
1804 					  radeon_get_encoder_enum(dev,
1805 								ATOM_DEVICE_TV1_SUPPORT,
1806 								2),
1807 					  ATOM_DEVICE_TV1_SUPPORT);
1808 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1809 					    DRM_MODE_CONNECTOR_SVIDEO,
1810 					    &ddc_i2c,
1811 					    CONNECTOR_OBJECT_ID_SVIDEO,
1812 					    &hpd);
1813 		break;
1814 	case CT_MINI_EXTERNAL:
1815 		DRM_INFO("Connector Table: %d (mini external tmds)\n",
1816 			 rdev->mode_info.connector_table);
1817 		/* DVI-I - tv dac, ext tmds */
1818 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_CRT2, 0, 0);
1819 		hpd.hpd = RADEON_HPD_2; /* ??? */
1820 		radeon_add_legacy_encoder(dev,
1821 					  radeon_get_encoder_enum(dev,
1822 								ATOM_DEVICE_DFP2_SUPPORT,
1823 								0),
1824 					  ATOM_DEVICE_DFP2_SUPPORT);
1825 		radeon_add_legacy_encoder(dev,
1826 					  radeon_get_encoder_enum(dev,
1827 								ATOM_DEVICE_CRT2_SUPPORT,
1828 								2),
1829 					  ATOM_DEVICE_CRT2_SUPPORT);
1830 		/* XXX are any DL? */
1831 		radeon_add_legacy_connector(dev, 0,
1832 					    ATOM_DEVICE_DFP2_SUPPORT |
1833 					    ATOM_DEVICE_CRT2_SUPPORT,
1834 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
1835 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
1836 					    &hpd);
1837 		/* TV - TV DAC */
1838 		ddc_i2c.valid = false;
1839 		hpd.hpd = RADEON_HPD_NONE;
1840 		radeon_add_legacy_encoder(dev,
1841 					  radeon_get_encoder_enum(dev,
1842 								ATOM_DEVICE_TV1_SUPPORT,
1843 								2),
1844 					  ATOM_DEVICE_TV1_SUPPORT);
1845 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_TV1_SUPPORT,
1846 					    DRM_MODE_CONNECTOR_SVIDEO,
1847 					    &ddc_i2c,
1848 					    CONNECTOR_OBJECT_ID_SVIDEO,
1849 					    &hpd);
1850 		break;
1851 	case CT_MINI_INTERNAL:
1852 		DRM_INFO("Connector Table: %d (mini internal tmds)\n",
1853 			 rdev->mode_info.connector_table);
1854 		/* DVI-I - tv dac, int tmds */
1855 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_CRT2, 0, 0);
1856 		hpd.hpd = RADEON_HPD_1; /* ??? */
1857 		radeon_add_legacy_encoder(dev,
1858 					  radeon_get_encoder_enum(dev,
1859 								ATOM_DEVICE_DFP1_SUPPORT,
1860 								0),
1861 					  ATOM_DEVICE_DFP1_SUPPORT);
1862 		radeon_add_legacy_encoder(dev,
1863 					  radeon_get_encoder_enum(dev,
1864 								ATOM_DEVICE_CRT2_SUPPORT,
1865 								2),
1866 					  ATOM_DEVICE_CRT2_SUPPORT);
1867 		radeon_add_legacy_connector(dev, 0,
1868 					    ATOM_DEVICE_DFP1_SUPPORT |
1869 					    ATOM_DEVICE_CRT2_SUPPORT,
1870 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
1871 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
1872 					    &hpd);
1873 		/* TV - TV DAC */
1874 		ddc_i2c.valid = false;
1875 		hpd.hpd = RADEON_HPD_NONE;
1876 		radeon_add_legacy_encoder(dev,
1877 					  radeon_get_encoder_enum(dev,
1878 								ATOM_DEVICE_TV1_SUPPORT,
1879 								2),
1880 					  ATOM_DEVICE_TV1_SUPPORT);
1881 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_TV1_SUPPORT,
1882 					    DRM_MODE_CONNECTOR_SVIDEO,
1883 					    &ddc_i2c,
1884 					    CONNECTOR_OBJECT_ID_SVIDEO,
1885 					    &hpd);
1886 		break;
1887 	case CT_IMAC_G5_ISIGHT:
1888 		DRM_INFO("Connector Table: %d (imac g5 isight)\n",
1889 			 rdev->mode_info.connector_table);
1890 		/* DVI-D - int tmds */
1891 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_MONID, 0, 0);
1892 		hpd.hpd = RADEON_HPD_1; /* ??? */
1893 		radeon_add_legacy_encoder(dev,
1894 					  radeon_get_encoder_enum(dev,
1895 								ATOM_DEVICE_DFP1_SUPPORT,
1896 								0),
1897 					  ATOM_DEVICE_DFP1_SUPPORT);
1898 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_DFP1_SUPPORT,
1899 					    DRM_MODE_CONNECTOR_DVID, &ddc_i2c,
1900 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D,
1901 					    &hpd);
1902 		/* VGA - tv dac */
1903 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
1904 		hpd.hpd = RADEON_HPD_NONE;
1905 		radeon_add_legacy_encoder(dev,
1906 					  radeon_get_encoder_enum(dev,
1907 								ATOM_DEVICE_CRT2_SUPPORT,
1908 								2),
1909 					  ATOM_DEVICE_CRT2_SUPPORT);
1910 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
1911 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1912 					    CONNECTOR_OBJECT_ID_VGA,
1913 					    &hpd);
1914 		/* TV - TV DAC */
1915 		ddc_i2c.valid = false;
1916 		hpd.hpd = RADEON_HPD_NONE;
1917 		radeon_add_legacy_encoder(dev,
1918 					  radeon_get_encoder_enum(dev,
1919 								ATOM_DEVICE_TV1_SUPPORT,
1920 								2),
1921 					  ATOM_DEVICE_TV1_SUPPORT);
1922 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1923 					    DRM_MODE_CONNECTOR_SVIDEO,
1924 					    &ddc_i2c,
1925 					    CONNECTOR_OBJECT_ID_SVIDEO,
1926 					    &hpd);
1927 		break;
1928 	case CT_EMAC:
1929 		DRM_INFO("Connector Table: %d (emac)\n",
1930 			 rdev->mode_info.connector_table);
1931 		/* VGA - primary dac */
1932 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1933 		hpd.hpd = RADEON_HPD_NONE;
1934 		radeon_add_legacy_encoder(dev,
1935 					  radeon_get_encoder_enum(dev,
1936 								ATOM_DEVICE_CRT1_SUPPORT,
1937 								1),
1938 					  ATOM_DEVICE_CRT1_SUPPORT);
1939 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_CRT1_SUPPORT,
1940 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1941 					    CONNECTOR_OBJECT_ID_VGA,
1942 					    &hpd);
1943 		/* VGA - tv dac */
1944 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_CRT2, 0, 0);
1945 		hpd.hpd = RADEON_HPD_NONE;
1946 		radeon_add_legacy_encoder(dev,
1947 					  radeon_get_encoder_enum(dev,
1948 								ATOM_DEVICE_CRT2_SUPPORT,
1949 								2),
1950 					  ATOM_DEVICE_CRT2_SUPPORT);
1951 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
1952 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1953 					    CONNECTOR_OBJECT_ID_VGA,
1954 					    &hpd);
1955 		/* TV - TV DAC */
1956 		ddc_i2c.valid = false;
1957 		hpd.hpd = RADEON_HPD_NONE;
1958 		radeon_add_legacy_encoder(dev,
1959 					  radeon_get_encoder_enum(dev,
1960 								ATOM_DEVICE_TV1_SUPPORT,
1961 								2),
1962 					  ATOM_DEVICE_TV1_SUPPORT);
1963 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
1964 					    DRM_MODE_CONNECTOR_SVIDEO,
1965 					    &ddc_i2c,
1966 					    CONNECTOR_OBJECT_ID_SVIDEO,
1967 					    &hpd);
1968 		break;
1969 	case CT_RN50_POWER:
1970 		DRM_INFO("Connector Table: %d (rn50-power)\n",
1971 			 rdev->mode_info.connector_table);
1972 		/* VGA - primary dac */
1973 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
1974 		hpd.hpd = RADEON_HPD_NONE;
1975 		radeon_add_legacy_encoder(dev,
1976 					  radeon_get_encoder_enum(dev,
1977 								ATOM_DEVICE_CRT1_SUPPORT,
1978 								1),
1979 					  ATOM_DEVICE_CRT1_SUPPORT);
1980 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_CRT1_SUPPORT,
1981 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1982 					    CONNECTOR_OBJECT_ID_VGA,
1983 					    &hpd);
1984 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_CRT2, 0, 0);
1985 		hpd.hpd = RADEON_HPD_NONE;
1986 		radeon_add_legacy_encoder(dev,
1987 					  radeon_get_encoder_enum(dev,
1988 								ATOM_DEVICE_CRT2_SUPPORT,
1989 								2),
1990 					  ATOM_DEVICE_CRT2_SUPPORT);
1991 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
1992 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
1993 					    CONNECTOR_OBJECT_ID_VGA,
1994 					    &hpd);
1995 		break;
1996 	case CT_MAC_X800:
1997 		DRM_INFO("Connector Table: %d (mac x800)\n",
1998 			 rdev->mode_info.connector_table);
1999 		/* DVI - primary dac, internal tmds */
2000 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
2001 		hpd.hpd = RADEON_HPD_1; /* ??? */
2002 		radeon_add_legacy_encoder(dev,
2003 					  radeon_get_encoder_enum(dev,
2004 								  ATOM_DEVICE_DFP1_SUPPORT,
2005 								  0),
2006 					  ATOM_DEVICE_DFP1_SUPPORT);
2007 		radeon_add_legacy_encoder(dev,
2008 					  radeon_get_encoder_enum(dev,
2009 								  ATOM_DEVICE_CRT1_SUPPORT,
2010 								  1),
2011 					  ATOM_DEVICE_CRT1_SUPPORT);
2012 		radeon_add_legacy_connector(dev, 0,
2013 					    ATOM_DEVICE_DFP1_SUPPORT |
2014 					    ATOM_DEVICE_CRT1_SUPPORT,
2015 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
2016 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
2017 					    &hpd);
2018 		/* DVI - tv dac, dvo */
2019 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_MONID, 0, 0);
2020 		hpd.hpd = RADEON_HPD_2; /* ??? */
2021 		radeon_add_legacy_encoder(dev,
2022 					  radeon_get_encoder_enum(dev,
2023 								  ATOM_DEVICE_DFP2_SUPPORT,
2024 								  0),
2025 					  ATOM_DEVICE_DFP2_SUPPORT);
2026 		radeon_add_legacy_encoder(dev,
2027 					  radeon_get_encoder_enum(dev,
2028 								  ATOM_DEVICE_CRT2_SUPPORT,
2029 								  2),
2030 					  ATOM_DEVICE_CRT2_SUPPORT);
2031 		radeon_add_legacy_connector(dev, 1,
2032 					    ATOM_DEVICE_DFP2_SUPPORT |
2033 					    ATOM_DEVICE_CRT2_SUPPORT,
2034 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
2035 					    CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I,
2036 					    &hpd);
2037 		break;
2038 	case CT_MAC_G5_9600:
2039 		DRM_INFO("Connector Table: %d (mac g5 9600)\n",
2040 			 rdev->mode_info.connector_table);
2041 		/* DVI - tv dac, dvo */
2042 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
2043 		hpd.hpd = RADEON_HPD_1; /* ??? */
2044 		radeon_add_legacy_encoder(dev,
2045 					  radeon_get_encoder_enum(dev,
2046 								  ATOM_DEVICE_DFP2_SUPPORT,
2047 								  0),
2048 					  ATOM_DEVICE_DFP2_SUPPORT);
2049 		radeon_add_legacy_encoder(dev,
2050 					  radeon_get_encoder_enum(dev,
2051 								  ATOM_DEVICE_CRT2_SUPPORT,
2052 								  2),
2053 					  ATOM_DEVICE_CRT2_SUPPORT);
2054 		radeon_add_legacy_connector(dev, 0,
2055 					    ATOM_DEVICE_DFP2_SUPPORT |
2056 					    ATOM_DEVICE_CRT2_SUPPORT,
2057 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
2058 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
2059 					    &hpd);
2060 		/* ADC - primary dac, internal tmds */
2061 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
2062 		hpd.hpd = RADEON_HPD_2; /* ??? */
2063 		radeon_add_legacy_encoder(dev,
2064 					  radeon_get_encoder_enum(dev,
2065 								  ATOM_DEVICE_DFP1_SUPPORT,
2066 								  0),
2067 					  ATOM_DEVICE_DFP1_SUPPORT);
2068 		radeon_add_legacy_encoder(dev,
2069 					  radeon_get_encoder_enum(dev,
2070 								  ATOM_DEVICE_CRT1_SUPPORT,
2071 								  1),
2072 					  ATOM_DEVICE_CRT1_SUPPORT);
2073 		radeon_add_legacy_connector(dev, 1,
2074 					    ATOM_DEVICE_DFP1_SUPPORT |
2075 					    ATOM_DEVICE_CRT1_SUPPORT,
2076 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
2077 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
2078 					    &hpd);
2079 		/* TV - TV DAC */
2080 		ddc_i2c.valid = false;
2081 		hpd.hpd = RADEON_HPD_NONE;
2082 		radeon_add_legacy_encoder(dev,
2083 					  radeon_get_encoder_enum(dev,
2084 								ATOM_DEVICE_TV1_SUPPORT,
2085 								2),
2086 					  ATOM_DEVICE_TV1_SUPPORT);
2087 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
2088 					    DRM_MODE_CONNECTOR_SVIDEO,
2089 					    &ddc_i2c,
2090 					    CONNECTOR_OBJECT_ID_SVIDEO,
2091 					    &hpd);
2092 		break;
2093 	case CT_SAM440EP:
2094 		DRM_INFO("Connector Table: %d (SAM440ep embedded board)\n",
2095 			 rdev->mode_info.connector_table);
2096 		/* LVDS */
2097 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_NONE_DETECTED, 0, 0);
2098 		hpd.hpd = RADEON_HPD_NONE;
2099 		radeon_add_legacy_encoder(dev,
2100 					  radeon_get_encoder_enum(dev,
2101 								ATOM_DEVICE_LCD1_SUPPORT,
2102 								0),
2103 					  ATOM_DEVICE_LCD1_SUPPORT);
2104 		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
2105 					    DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
2106 					    CONNECTOR_OBJECT_ID_LVDS,
2107 					    &hpd);
2108 		/* DVI-I - secondary dac, int tmds */
2109 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
2110 		hpd.hpd = RADEON_HPD_1; /* ??? */
2111 		radeon_add_legacy_encoder(dev,
2112 					  radeon_get_encoder_enum(dev,
2113 								ATOM_DEVICE_DFP1_SUPPORT,
2114 								0),
2115 					  ATOM_DEVICE_DFP1_SUPPORT);
2116 		radeon_add_legacy_encoder(dev,
2117 					  radeon_get_encoder_enum(dev,
2118 								ATOM_DEVICE_CRT2_SUPPORT,
2119 								2),
2120 					  ATOM_DEVICE_CRT2_SUPPORT);
2121 		radeon_add_legacy_connector(dev, 1,
2122 					    ATOM_DEVICE_DFP1_SUPPORT |
2123 					    ATOM_DEVICE_CRT2_SUPPORT,
2124 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
2125 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
2126 					    &hpd);
2127 		/* VGA - primary dac */
2128 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
2129 		hpd.hpd = RADEON_HPD_NONE;
2130 		radeon_add_legacy_encoder(dev,
2131 					  radeon_get_encoder_enum(dev,
2132 								ATOM_DEVICE_CRT1_SUPPORT,
2133 								1),
2134 					  ATOM_DEVICE_CRT1_SUPPORT);
2135 		radeon_add_legacy_connector(dev, 2,
2136 					    ATOM_DEVICE_CRT1_SUPPORT,
2137 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
2138 					    CONNECTOR_OBJECT_ID_VGA,
2139 					    &hpd);
2140 		/* TV - TV DAC */
2141 		ddc_i2c.valid = false;
2142 		hpd.hpd = RADEON_HPD_NONE;
2143 		radeon_add_legacy_encoder(dev,
2144 					  radeon_get_encoder_enum(dev,
2145 								ATOM_DEVICE_TV1_SUPPORT,
2146 								2),
2147 					  ATOM_DEVICE_TV1_SUPPORT);
2148 		radeon_add_legacy_connector(dev, 3, ATOM_DEVICE_TV1_SUPPORT,
2149 					    DRM_MODE_CONNECTOR_SVIDEO,
2150 					    &ddc_i2c,
2151 					    CONNECTOR_OBJECT_ID_SVIDEO,
2152 					    &hpd);
2153 		break;
2154 	case CT_MAC_G4_SILVER:
2155 		DRM_INFO("Connector Table: %d (mac g4 silver)\n",
2156 			 rdev->mode_info.connector_table);
2157 		/* DVI-I - tv dac, int tmds */
2158 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
2159 		hpd.hpd = RADEON_HPD_1; /* ??? */
2160 		radeon_add_legacy_encoder(dev,
2161 					  radeon_get_encoder_enum(dev,
2162 								ATOM_DEVICE_DFP1_SUPPORT,
2163 								0),
2164 					  ATOM_DEVICE_DFP1_SUPPORT);
2165 		radeon_add_legacy_encoder(dev,
2166 					  radeon_get_encoder_enum(dev,
2167 								ATOM_DEVICE_CRT2_SUPPORT,
2168 								2),
2169 					  ATOM_DEVICE_CRT2_SUPPORT);
2170 		radeon_add_legacy_connector(dev, 0,
2171 					    ATOM_DEVICE_DFP1_SUPPORT |
2172 					    ATOM_DEVICE_CRT2_SUPPORT,
2173 					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
2174 					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
2175 					    &hpd);
2176 		/* VGA - primary dac */
2177 		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
2178 		hpd.hpd = RADEON_HPD_NONE;
2179 		radeon_add_legacy_encoder(dev,
2180 					  radeon_get_encoder_enum(dev,
2181 								ATOM_DEVICE_CRT1_SUPPORT,
2182 								1),
2183 					  ATOM_DEVICE_CRT1_SUPPORT);
2184 		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT1_SUPPORT,
2185 					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
2186 					    CONNECTOR_OBJECT_ID_VGA,
2187 					    &hpd);
2188 		/* TV - TV DAC */
2189 		ddc_i2c.valid = false;
2190 		hpd.hpd = RADEON_HPD_NONE;
2191 		radeon_add_legacy_encoder(dev,
2192 					  radeon_get_encoder_enum(dev,
2193 								ATOM_DEVICE_TV1_SUPPORT,
2194 								2),
2195 					  ATOM_DEVICE_TV1_SUPPORT);
2196 		radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
2197 					    DRM_MODE_CONNECTOR_SVIDEO,
2198 					    &ddc_i2c,
2199 					    CONNECTOR_OBJECT_ID_SVIDEO,
2200 					    &hpd);
2201 		break;
2202 	default:
2203 		DRM_INFO("Connector table: %d (invalid)\n",
2204 			 rdev->mode_info.connector_table);
2205 		return false;
2206 	}
2207 
2208 	radeon_link_encoder_connector(dev);
2209 
2210 	return true;
2211 }
2212 
2213 static bool radeon_apply_legacy_quirks(struct drm_device *dev,
2214 				       int bios_index,
2215 				       enum radeon_combios_connector
2216 				       *legacy_connector,
2217 				       struct radeon_i2c_bus_rec *ddc_i2c,
2218 				       struct radeon_hpd *hpd)
2219 {
2220 
2221 	/* Certain IBM chipset RN50s have a BIOS reporting two VGAs,
2222 	   one with VGA DDC and one with CRT2 DDC. - kill the CRT2 DDC one */
2223 	if (dev->pdev->device == 0x515e &&
2224 	    dev->pdev->subsystem_vendor == 0x1014) {
2225 		if (*legacy_connector == CONNECTOR_CRT_LEGACY &&
2226 		    ddc_i2c->mask_clk_reg == RADEON_GPIO_CRT2_DDC)
2227 			return false;
2228 	}
2229 
2230 	/* X300 card with extra non-existent DVI port */
2231 	if (dev->pdev->device == 0x5B60 &&
2232 	    dev->pdev->subsystem_vendor == 0x17af &&
2233 	    dev->pdev->subsystem_device == 0x201e && bios_index == 2) {
2234 		if (*legacy_connector == CONNECTOR_DVI_I_LEGACY)
2235 			return false;
2236 	}
2237 
2238 	return true;
2239 }
2240 
2241 static bool radeon_apply_legacy_tv_quirks(struct drm_device *dev)
2242 {
2243 	/* Acer 5102 has non-existent TV port */
2244 	if (dev->pdev->device == 0x5975 &&
2245 	    dev->pdev->subsystem_vendor == 0x1025 &&
2246 	    dev->pdev->subsystem_device == 0x009f)
2247 		return false;
2248 
2249 	/* HP dc5750 has non-existent TV port */
2250 	if (dev->pdev->device == 0x5974 &&
2251 	    dev->pdev->subsystem_vendor == 0x103c &&
2252 	    dev->pdev->subsystem_device == 0x280a)
2253 		return false;
2254 
2255 	/* MSI S270 has non-existent TV port */
2256 	if (dev->pdev->device == 0x5955 &&
2257 	    dev->pdev->subsystem_vendor == 0x1462 &&
2258 	    dev->pdev->subsystem_device == 0x0131)
2259 		return false;
2260 
2261 	return true;
2262 }
2263 
2264 static uint16_t combios_check_dl_dvi(struct drm_device *dev, int is_dvi_d)
2265 {
2266 	struct radeon_device *rdev = dev->dev_private;
2267 	uint32_t ext_tmds_info;
2268 
2269 	if (rdev->flags & RADEON_IS_IGP) {
2270 		if (is_dvi_d)
2271 			return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D;
2272 		else
2273 			return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
2274 	}
2275 	ext_tmds_info = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
2276 	if (ext_tmds_info) {
2277 		uint8_t rev = RBIOS8(ext_tmds_info);
2278 		uint8_t flags = RBIOS8(ext_tmds_info + 4 + 5);
2279 		if (rev >= 3) {
2280 			if (is_dvi_d)
2281 				return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D;
2282 			else
2283 				return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I;
2284 		} else {
2285 			if (flags & 1) {
2286 				if (is_dvi_d)
2287 					return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D;
2288 				else
2289 					return CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I;
2290 			}
2291 		}
2292 	}
2293 	if (is_dvi_d)
2294 		return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D;
2295 	else
2296 		return CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
2297 }
2298 
2299 bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev)
2300 {
2301 	struct radeon_device *rdev = dev->dev_private;
2302 	uint32_t conn_info, entry, devices;
2303 	uint16_t tmp, connector_object_id;
2304 	enum radeon_combios_ddc ddc_type;
2305 	enum radeon_combios_connector connector;
2306 	int i = 0;
2307 	struct radeon_i2c_bus_rec ddc_i2c;
2308 	struct radeon_hpd hpd;
2309 
2310 	conn_info = combios_get_table_offset(dev, COMBIOS_CONNECTOR_INFO_TABLE);
2311 	if (conn_info) {
2312 		for (i = 0; i < 4; i++) {
2313 			entry = conn_info + 2 + i * 2;
2314 
2315 			if (!RBIOS16(entry))
2316 				break;
2317 
2318 			tmp = RBIOS16(entry);
2319 
2320 			connector = (tmp >> 12) & 0xf;
2321 
2322 			ddc_type = (tmp >> 8) & 0xf;
2323 			if (ddc_type == 5)
2324 				ddc_i2c = radeon_combios_get_i2c_info_from_table(rdev);
2325 			else
2326 				ddc_i2c = combios_setup_i2c_bus(rdev, ddc_type, 0, 0);
2327 
2328 			switch (connector) {
2329 			case CONNECTOR_PROPRIETARY_LEGACY:
2330 			case CONNECTOR_DVI_I_LEGACY:
2331 			case CONNECTOR_DVI_D_LEGACY:
2332 				if ((tmp >> 4) & 0x1)
2333 					hpd.hpd = RADEON_HPD_2;
2334 				else
2335 					hpd.hpd = RADEON_HPD_1;
2336 				break;
2337 			default:
2338 				hpd.hpd = RADEON_HPD_NONE;
2339 				break;
2340 			}
2341 
2342 			if (!radeon_apply_legacy_quirks(dev, i, &connector,
2343 							&ddc_i2c, &hpd))
2344 				continue;
2345 
2346 			switch (connector) {
2347 			case CONNECTOR_PROPRIETARY_LEGACY:
2348 				if ((tmp >> 4) & 0x1)
2349 					devices = ATOM_DEVICE_DFP2_SUPPORT;
2350 				else
2351 					devices = ATOM_DEVICE_DFP1_SUPPORT;
2352 				radeon_add_legacy_encoder(dev,
2353 							  radeon_get_encoder_enum
2354 							  (dev, devices, 0),
2355 							  devices);
2356 				radeon_add_legacy_connector(dev, i, devices,
2357 							    legacy_connector_convert
2358 							    [connector],
2359 							    &ddc_i2c,
2360 							    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D,
2361 							    &hpd);
2362 				break;
2363 			case CONNECTOR_CRT_LEGACY:
2364 				if (tmp & 0x1) {
2365 					devices = ATOM_DEVICE_CRT2_SUPPORT;
2366 					radeon_add_legacy_encoder(dev,
2367 								  radeon_get_encoder_enum
2368 								  (dev,
2369 								   ATOM_DEVICE_CRT2_SUPPORT,
2370 								   2),
2371 								  ATOM_DEVICE_CRT2_SUPPORT);
2372 				} else {
2373 					devices = ATOM_DEVICE_CRT1_SUPPORT;
2374 					radeon_add_legacy_encoder(dev,
2375 								  radeon_get_encoder_enum
2376 								  (dev,
2377 								   ATOM_DEVICE_CRT1_SUPPORT,
2378 								   1),
2379 								  ATOM_DEVICE_CRT1_SUPPORT);
2380 				}
2381 				radeon_add_legacy_connector(dev,
2382 							    i,
2383 							    devices,
2384 							    legacy_connector_convert
2385 							    [connector],
2386 							    &ddc_i2c,
2387 							    CONNECTOR_OBJECT_ID_VGA,
2388 							    &hpd);
2389 				break;
2390 			case CONNECTOR_DVI_I_LEGACY:
2391 				devices = 0;
2392 				if (tmp & 0x1) {
2393 					devices |= ATOM_DEVICE_CRT2_SUPPORT;
2394 					radeon_add_legacy_encoder(dev,
2395 								  radeon_get_encoder_enum
2396 								  (dev,
2397 								   ATOM_DEVICE_CRT2_SUPPORT,
2398 								   2),
2399 								  ATOM_DEVICE_CRT2_SUPPORT);
2400 				} else {
2401 					devices |= ATOM_DEVICE_CRT1_SUPPORT;
2402 					radeon_add_legacy_encoder(dev,
2403 								  radeon_get_encoder_enum
2404 								  (dev,
2405 								   ATOM_DEVICE_CRT1_SUPPORT,
2406 								   1),
2407 								  ATOM_DEVICE_CRT1_SUPPORT);
2408 				}
2409 				/* RV100 board with external TDMS bit mis-set.
2410 				 * Actually uses internal TMDS, clear the bit.
2411 				 */
2412 				if (dev->pdev->device == 0x5159 &&
2413 				    dev->pdev->subsystem_vendor == 0x1014 &&
2414 				    dev->pdev->subsystem_device == 0x029A) {
2415 					tmp &= ~(1 << 4);
2416 				}
2417 				if ((tmp >> 4) & 0x1) {
2418 					devices |= ATOM_DEVICE_DFP2_SUPPORT;
2419 					radeon_add_legacy_encoder(dev,
2420 								  radeon_get_encoder_enum
2421 								  (dev,
2422 								   ATOM_DEVICE_DFP2_SUPPORT,
2423 								   0),
2424 								  ATOM_DEVICE_DFP2_SUPPORT);
2425 					connector_object_id = combios_check_dl_dvi(dev, 0);
2426 				} else {
2427 					devices |= ATOM_DEVICE_DFP1_SUPPORT;
2428 					radeon_add_legacy_encoder(dev,
2429 								  radeon_get_encoder_enum
2430 								  (dev,
2431 								   ATOM_DEVICE_DFP1_SUPPORT,
2432 								   0),
2433 								  ATOM_DEVICE_DFP1_SUPPORT);
2434 					connector_object_id = CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
2435 				}
2436 				radeon_add_legacy_connector(dev,
2437 							    i,
2438 							    devices,
2439 							    legacy_connector_convert
2440 							    [connector],
2441 							    &ddc_i2c,
2442 							    connector_object_id,
2443 							    &hpd);
2444 				break;
2445 			case CONNECTOR_DVI_D_LEGACY:
2446 				if ((tmp >> 4) & 0x1) {
2447 					devices = ATOM_DEVICE_DFP2_SUPPORT;
2448 					connector_object_id = combios_check_dl_dvi(dev, 1);
2449 				} else {
2450 					devices = ATOM_DEVICE_DFP1_SUPPORT;
2451 					connector_object_id = CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I;
2452 				}
2453 				radeon_add_legacy_encoder(dev,
2454 							  radeon_get_encoder_enum
2455 							  (dev, devices, 0),
2456 							  devices);
2457 				radeon_add_legacy_connector(dev, i, devices,
2458 							    legacy_connector_convert
2459 							    [connector],
2460 							    &ddc_i2c,
2461 							    connector_object_id,
2462 							    &hpd);
2463 				break;
2464 			case CONNECTOR_CTV_LEGACY:
2465 			case CONNECTOR_STV_LEGACY:
2466 				radeon_add_legacy_encoder(dev,
2467 							  radeon_get_encoder_enum
2468 							  (dev,
2469 							   ATOM_DEVICE_TV1_SUPPORT,
2470 							   2),
2471 							  ATOM_DEVICE_TV1_SUPPORT);
2472 				radeon_add_legacy_connector(dev, i,
2473 							    ATOM_DEVICE_TV1_SUPPORT,
2474 							    legacy_connector_convert
2475 							    [connector],
2476 							    &ddc_i2c,
2477 							    CONNECTOR_OBJECT_ID_SVIDEO,
2478 							    &hpd);
2479 				break;
2480 			default:
2481 				DRM_ERROR("Unknown connector type: %d\n",
2482 					  connector);
2483 				continue;
2484 			}
2485 
2486 		}
2487 	} else {
2488 		uint16_t tmds_info =
2489 		    combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);
2490 		if (tmds_info) {
2491 			DRM_DEBUG_KMS("Found DFP table, assuming DVI connector\n");
2492 
2493 			radeon_add_legacy_encoder(dev,
2494 						  radeon_get_encoder_enum(dev,
2495 									ATOM_DEVICE_CRT1_SUPPORT,
2496 									1),
2497 						  ATOM_DEVICE_CRT1_SUPPORT);
2498 			radeon_add_legacy_encoder(dev,
2499 						  radeon_get_encoder_enum(dev,
2500 									ATOM_DEVICE_DFP1_SUPPORT,
2501 									0),
2502 						  ATOM_DEVICE_DFP1_SUPPORT);
2503 
2504 			ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
2505 			hpd.hpd = RADEON_HPD_1;
2506 			radeon_add_legacy_connector(dev,
2507 						    0,
2508 						    ATOM_DEVICE_CRT1_SUPPORT |
2509 						    ATOM_DEVICE_DFP1_SUPPORT,
2510 						    DRM_MODE_CONNECTOR_DVII,
2511 						    &ddc_i2c,
2512 						    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
2513 						    &hpd);
2514 		} else {
2515 			uint16_t crt_info =
2516 				combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
2517 			DRM_DEBUG_KMS("Found CRT table, assuming VGA connector\n");
2518 			if (crt_info) {
2519 				radeon_add_legacy_encoder(dev,
2520 							  radeon_get_encoder_enum(dev,
2521 										ATOM_DEVICE_CRT1_SUPPORT,
2522 										1),
2523 							  ATOM_DEVICE_CRT1_SUPPORT);
2524 				ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
2525 				hpd.hpd = RADEON_HPD_NONE;
2526 				radeon_add_legacy_connector(dev,
2527 							    0,
2528 							    ATOM_DEVICE_CRT1_SUPPORT,
2529 							    DRM_MODE_CONNECTOR_VGA,
2530 							    &ddc_i2c,
2531 							    CONNECTOR_OBJECT_ID_VGA,
2532 							    &hpd);
2533 			} else {
2534 				DRM_DEBUG_KMS("No connector info found\n");
2535 				return false;
2536 			}
2537 		}
2538 	}
2539 
2540 	if (rdev->flags & RADEON_IS_MOBILITY || rdev->flags & RADEON_IS_IGP) {
2541 		uint16_t lcd_info =
2542 		    combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);
2543 		if (lcd_info) {
2544 			uint16_t lcd_ddc_info =
2545 			    combios_get_table_offset(dev,
2546 						     COMBIOS_LCD_DDC_INFO_TABLE);
2547 
2548 			radeon_add_legacy_encoder(dev,
2549 						  radeon_get_encoder_enum(dev,
2550 									ATOM_DEVICE_LCD1_SUPPORT,
2551 									0),
2552 						  ATOM_DEVICE_LCD1_SUPPORT);
2553 
2554 			if (lcd_ddc_info) {
2555 				ddc_type = RBIOS8(lcd_ddc_info + 2);
2556 				switch (ddc_type) {
2557 				case DDC_LCD:
2558 					ddc_i2c =
2559 						combios_setup_i2c_bus(rdev,
2560 								      DDC_LCD,
2561 								      RBIOS32(lcd_ddc_info + 3),
2562 								      RBIOS32(lcd_ddc_info + 7));
2563 					radeon_i2c_add(rdev, &ddc_i2c, "LCD");
2564 					break;
2565 				case DDC_GPIO:
2566 					ddc_i2c =
2567 						combios_setup_i2c_bus(rdev,
2568 								      DDC_GPIO,
2569 								      RBIOS32(lcd_ddc_info + 3),
2570 								      RBIOS32(lcd_ddc_info + 7));
2571 					radeon_i2c_add(rdev, &ddc_i2c, "LCD");
2572 					break;
2573 				default:
2574 					ddc_i2c =
2575 						combios_setup_i2c_bus(rdev, ddc_type, 0, 0);
2576 					break;
2577 				}
2578 				DRM_DEBUG_KMS("LCD DDC Info Table found!\n");
2579 			} else
2580 				ddc_i2c.valid = false;
2581 
2582 			hpd.hpd = RADEON_HPD_NONE;
2583 			radeon_add_legacy_connector(dev,
2584 						    5,
2585 						    ATOM_DEVICE_LCD1_SUPPORT,
2586 						    DRM_MODE_CONNECTOR_LVDS,
2587 						    &ddc_i2c,
2588 						    CONNECTOR_OBJECT_ID_LVDS,
2589 						    &hpd);
2590 		}
2591 	}
2592 
2593 	/* check TV table */
2594 	if (rdev->family != CHIP_R100 && rdev->family != CHIP_R200) {
2595 		uint32_t tv_info =
2596 		    combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
2597 		if (tv_info) {
2598 			if (RBIOS8(tv_info + 6) == 'T') {
2599 				if (radeon_apply_legacy_tv_quirks(dev)) {
2600 					hpd.hpd = RADEON_HPD_NONE;
2601 					ddc_i2c.valid = false;
2602 					radeon_add_legacy_encoder(dev,
2603 								  radeon_get_encoder_enum
2604 								  (dev,
2605 								   ATOM_DEVICE_TV1_SUPPORT,
2606 								   2),
2607 								  ATOM_DEVICE_TV1_SUPPORT);
2608 					radeon_add_legacy_connector(dev, 6,
2609 								    ATOM_DEVICE_TV1_SUPPORT,
2610 								    DRM_MODE_CONNECTOR_SVIDEO,
2611 								    &ddc_i2c,
2612 								    CONNECTOR_OBJECT_ID_SVIDEO,
2613 								    &hpd);
2614 				}
2615 			}
2616 		}
2617 	}
2618 
2619 	radeon_link_encoder_connector(dev);
2620 
2621 	return true;
2622 }
2623 
2624 static const char *thermal_controller_names[] = {
2625 	"NONE",
2626 	"lm63",
2627 	"adm1032",
2628 };
2629 
2630 void radeon_combios_get_power_modes(struct radeon_device *rdev)
2631 {
2632 	struct drm_device *dev = rdev->ddev;
2633 	u16 offset, misc, misc2 = 0;
2634 	u8 rev, blocks, tmp;
2635 	int state_index = 0;
2636 	struct radeon_i2c_bus_rec i2c_bus;
2637 
2638 	rdev->pm.default_power_state_index = -1;
2639 
2640 	/* allocate 2 power states */
2641 	rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state) * 2, GFP_KERNEL);
2642 	if (rdev->pm.power_state) {
2643 		/* allocate 1 clock mode per state */
2644 		rdev->pm.power_state[0].clock_info =
2645 			kzalloc(sizeof(struct radeon_pm_clock_info) * 1, GFP_KERNEL);
2646 		rdev->pm.power_state[1].clock_info =
2647 			kzalloc(sizeof(struct radeon_pm_clock_info) * 1, GFP_KERNEL);
2648 		if (!rdev->pm.power_state[0].clock_info ||
2649 		    !rdev->pm.power_state[1].clock_info)
2650 			goto pm_failed;
2651 	} else
2652 		goto pm_failed;
2653 
2654 	/* check for a thermal chip */
2655 	offset = combios_get_table_offset(dev, COMBIOS_OVERDRIVE_INFO_TABLE);
2656 	if (offset) {
2657 		u8 thermal_controller = 0, gpio = 0, i2c_addr = 0, clk_bit = 0, data_bit = 0;
2658 
2659 		rev = RBIOS8(offset);
2660 
2661 		if (rev == 0) {
2662 			thermal_controller = RBIOS8(offset + 3);
2663 			gpio = RBIOS8(offset + 4) & 0x3f;
2664 			i2c_addr = RBIOS8(offset + 5);
2665 		} else if (rev == 1) {
2666 			thermal_controller = RBIOS8(offset + 4);
2667 			gpio = RBIOS8(offset + 5) & 0x3f;
2668 			i2c_addr = RBIOS8(offset + 6);
2669 		} else if (rev == 2) {
2670 			thermal_controller = RBIOS8(offset + 4);
2671 			gpio = RBIOS8(offset + 5) & 0x3f;
2672 			i2c_addr = RBIOS8(offset + 6);
2673 			clk_bit = RBIOS8(offset + 0xa);
2674 			data_bit = RBIOS8(offset + 0xb);
2675 		}
2676 		if ((thermal_controller > 0) && (thermal_controller < 3)) {
2677 			DRM_INFO("Possible %s thermal controller at 0x%02x\n",
2678 				 thermal_controller_names[thermal_controller],
2679 				 i2c_addr >> 1);
2680 			if (gpio == DDC_LCD) {
2681 				/* MM i2c */
2682 				i2c_bus.valid = true;
2683 				i2c_bus.hw_capable = true;
2684 				i2c_bus.mm_i2c = true;
2685 				i2c_bus.i2c_id = 0xa0;
2686 			} else if (gpio == DDC_GPIO)
2687 				i2c_bus = combios_setup_i2c_bus(rdev, gpio, 1 << clk_bit, 1 << data_bit);
2688 			else
2689 				i2c_bus = combios_setup_i2c_bus(rdev, gpio, 0, 0);
2690 			rdev->pm.i2c_bus = radeon_i2c_lookup(rdev, &i2c_bus);
2691 			if (rdev->pm.i2c_bus) {
2692 				struct i2c_board_info info = { };
2693 				const char *name = thermal_controller_names[thermal_controller];
2694 				info.addr = i2c_addr >> 1;
2695 				strlcpy(info.type, name, sizeof(info.type));
2696 				i2c_new_device(&rdev->pm.i2c_bus->adapter, &info);
2697 			}
2698 		}
2699 	} else {
2700 		/* boards with a thermal chip, but no overdrive table */
2701 
2702 		/* Asus 9600xt has an f75375 on the monid bus */
2703 		if ((dev->pdev->device == 0x4152) &&
2704 		    (dev->pdev->subsystem_vendor == 0x1043) &&
2705 		    (dev->pdev->subsystem_device == 0xc002)) {
2706 			i2c_bus = combios_setup_i2c_bus(rdev, DDC_MONID, 0, 0);
2707 			rdev->pm.i2c_bus = radeon_i2c_lookup(rdev, &i2c_bus);
2708 			if (rdev->pm.i2c_bus) {
2709 				struct i2c_board_info info = { };
2710 				const char *name = "f75375";
2711 				info.addr = 0x28;
2712 				strlcpy(info.type, name, sizeof(info.type));
2713 				i2c_new_device(&rdev->pm.i2c_bus->adapter, &info);
2714 				DRM_INFO("Possible %s thermal controller at 0x%02x\n",
2715 					 name, info.addr);
2716 			}
2717 		}
2718 	}
2719 
2720 	if (rdev->flags & RADEON_IS_MOBILITY) {
2721 		offset = combios_get_table_offset(dev, COMBIOS_POWERPLAY_INFO_TABLE);
2722 		if (offset) {
2723 			rev = RBIOS8(offset);
2724 			blocks = RBIOS8(offset + 0x2);
2725 			/* power mode 0 tends to be the only valid one */
2726 			rdev->pm.power_state[state_index].num_clock_modes = 1;
2727 			rdev->pm.power_state[state_index].clock_info[0].mclk = RBIOS32(offset + 0x5 + 0x2);
2728 			rdev->pm.power_state[state_index].clock_info[0].sclk = RBIOS32(offset + 0x5 + 0x6);
2729 			if ((rdev->pm.power_state[state_index].clock_info[0].mclk == 0) ||
2730 			    (rdev->pm.power_state[state_index].clock_info[0].sclk == 0))
2731 				goto default_mode;
2732 			rdev->pm.power_state[state_index].type =
2733 				POWER_STATE_TYPE_BATTERY;
2734 			misc = RBIOS16(offset + 0x5 + 0x0);
2735 			if (rev > 4)
2736 				misc2 = RBIOS16(offset + 0x5 + 0xe);
2737 			rdev->pm.power_state[state_index].misc = misc;
2738 			rdev->pm.power_state[state_index].misc2 = misc2;
2739 			if (misc & 0x4) {
2740 				rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_GPIO;
2741 				if (misc & 0x8)
2742 					rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
2743 						true;
2744 				else
2745 					rdev->pm.power_state[state_index].clock_info[0].voltage.active_high =
2746 						false;
2747 				rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.valid = true;
2748 				if (rev < 6) {
2749 					rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.reg =
2750 						RBIOS16(offset + 0x5 + 0xb) * 4;
2751 					tmp = RBIOS8(offset + 0x5 + 0xd);
2752 					rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.mask = (1 << tmp);
2753 				} else {
2754 					u8 entries = RBIOS8(offset + 0x5 + 0xb);
2755 					u16 voltage_table_offset = RBIOS16(offset + 0x5 + 0xc);
2756 					if (entries && voltage_table_offset) {
2757 						rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.reg =
2758 							RBIOS16(voltage_table_offset) * 4;
2759 						tmp = RBIOS8(voltage_table_offset + 0x2);
2760 						rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.mask = (1 << tmp);
2761 					} else
2762 						rdev->pm.power_state[state_index].clock_info[0].voltage.gpio.valid = false;
2763 				}
2764 				switch ((misc2 & 0x700) >> 8) {
2765 				case 0:
2766 				default:
2767 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 0;
2768 					break;
2769 				case 1:
2770 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 33;
2771 					break;
2772 				case 2:
2773 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 66;
2774 					break;
2775 				case 3:
2776 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 99;
2777 					break;
2778 				case 4:
2779 					rdev->pm.power_state[state_index].clock_info[0].voltage.delay = 132;
2780 					break;
2781 				}
2782 			} else
2783 				rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_NONE;
2784 			if (rev > 6)
2785 				rdev->pm.power_state[state_index].pcie_lanes =
2786 					RBIOS8(offset + 0x5 + 0x10);
2787 			rdev->pm.power_state[state_index].flags = RADEON_PM_STATE_SINGLE_DISPLAY_ONLY;
2788 			state_index++;
2789 		} else {
2790 			/* XXX figure out some good default low power mode for mobility cards w/out power tables */
2791 		}
2792 	} else {
2793 		/* XXX figure out some good default low power mode for desktop cards */
2794 	}
2795 
2796 default_mode:
2797 	/* add the default mode */
2798 	rdev->pm.power_state[state_index].type =
2799 		POWER_STATE_TYPE_DEFAULT;
2800 	rdev->pm.power_state[state_index].num_clock_modes = 1;
2801 	rdev->pm.power_state[state_index].clock_info[0].mclk = rdev->clock.default_mclk;
2802 	rdev->pm.power_state[state_index].clock_info[0].sclk = rdev->clock.default_sclk;
2803 	rdev->pm.power_state[state_index].default_clock_mode = &rdev->pm.power_state[state_index].clock_info[0];
2804 	if ((state_index > 0) &&
2805 	    (rdev->pm.power_state[0].clock_info[0].voltage.type == VOLTAGE_GPIO))
2806 		rdev->pm.power_state[state_index].clock_info[0].voltage =
2807 			rdev->pm.power_state[0].clock_info[0].voltage;
2808 	else
2809 		rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_NONE;
2810 	rdev->pm.power_state[state_index].pcie_lanes = 16;
2811 	rdev->pm.power_state[state_index].flags = 0;
2812 	rdev->pm.default_power_state_index = state_index;
2813 	rdev->pm.num_power_states = state_index + 1;
2814 
2815 	rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
2816 	rdev->pm.current_clock_mode_index = 0;
2817 	return;
2818 
2819 pm_failed:
2820 	rdev->pm.default_power_state_index = state_index;
2821 	rdev->pm.num_power_states = 0;
2822 
2823 	rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
2824 	rdev->pm.current_clock_mode_index = 0;
2825 }
2826 
2827 void radeon_external_tmds_setup(struct drm_encoder *encoder)
2828 {
2829 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
2830 	struct radeon_encoder_ext_tmds *tmds = radeon_encoder->enc_priv;
2831 
2832 	if (!tmds)
2833 		return;
2834 
2835 	switch (tmds->dvo_chip) {
2836 	case DVO_SIL164:
2837 		/* sil 164 */
2838 		radeon_i2c_put_byte(tmds->i2c_bus,
2839 				    tmds->slave_addr,
2840 				    0x08, 0x30);
2841 		radeon_i2c_put_byte(tmds->i2c_bus,
2842 				       tmds->slave_addr,
2843 				       0x09, 0x00);
2844 		radeon_i2c_put_byte(tmds->i2c_bus,
2845 				    tmds->slave_addr,
2846 				    0x0a, 0x90);
2847 		radeon_i2c_put_byte(tmds->i2c_bus,
2848 				    tmds->slave_addr,
2849 				    0x0c, 0x89);
2850 		radeon_i2c_put_byte(tmds->i2c_bus,
2851 				       tmds->slave_addr,
2852 				       0x08, 0x3b);
2853 		break;
2854 	case DVO_SIL1178:
2855 		/* sil 1178 - untested */
2856 		/*
2857 		 * 0x0f, 0x44
2858 		 * 0x0f, 0x4c
2859 		 * 0x0e, 0x01
2860 		 * 0x0a, 0x80
2861 		 * 0x09, 0x30
2862 		 * 0x0c, 0xc9
2863 		 * 0x0d, 0x70
2864 		 * 0x08, 0x32
2865 		 * 0x08, 0x33
2866 		 */
2867 		break;
2868 	default:
2869 		break;
2870 	}
2871 
2872 }
2873 
2874 bool radeon_combios_external_tmds_setup(struct drm_encoder *encoder)
2875 {
2876 	struct drm_device *dev = encoder->dev;
2877 	struct radeon_device *rdev = dev->dev_private;
2878 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
2879 	uint16_t offset;
2880 	uint8_t blocks, slave_addr, rev;
2881 	uint32_t index, id;
2882 	uint32_t reg, val, and_mask, or_mask;
2883 	struct radeon_encoder_ext_tmds *tmds = radeon_encoder->enc_priv;
2884 
2885 	if (!tmds)
2886 		return false;
2887 
2888 	if (rdev->flags & RADEON_IS_IGP) {
2889 		offset = combios_get_table_offset(dev, COMBIOS_TMDS_POWER_ON_TABLE);
2890 		rev = RBIOS8(offset);
2891 		if (offset) {
2892 			rev = RBIOS8(offset);
2893 			if (rev > 1) {
2894 				blocks = RBIOS8(offset + 3);
2895 				index = offset + 4;
2896 				while (blocks > 0) {
2897 					id = RBIOS16(index);
2898 					index += 2;
2899 					switch (id >> 13) {
2900 					case 0:
2901 						reg = (id & 0x1fff) * 4;
2902 						val = RBIOS32(index);
2903 						index += 4;
2904 						WREG32(reg, val);
2905 						break;
2906 					case 2:
2907 						reg = (id & 0x1fff) * 4;
2908 						and_mask = RBIOS32(index);
2909 						index += 4;
2910 						or_mask = RBIOS32(index);
2911 						index += 4;
2912 						val = RREG32(reg);
2913 						val = (val & and_mask) | or_mask;
2914 						WREG32(reg, val);
2915 						break;
2916 					case 3:
2917 						val = RBIOS16(index);
2918 						index += 2;
2919 						udelay(val);
2920 						break;
2921 					case 4:
2922 						val = RBIOS16(index);
2923 						index += 2;
2924 						mdelay(val);
2925 						break;
2926 					case 6:
2927 						slave_addr = id & 0xff;
2928 						slave_addr >>= 1; /* 7 bit addressing */
2929 						index++;
2930 						reg = RBIOS8(index);
2931 						index++;
2932 						val = RBIOS8(index);
2933 						index++;
2934 						radeon_i2c_put_byte(tmds->i2c_bus,
2935 								    slave_addr,
2936 								    reg, val);
2937 						break;
2938 					default:
2939 						DRM_ERROR("Unknown id %d\n", id >> 13);
2940 						break;
2941 					}
2942 					blocks--;
2943 				}
2944 				return true;
2945 			}
2946 		}
2947 	} else {
2948 		offset = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
2949 		if (offset) {
2950 			index = offset + 10;
2951 			id = RBIOS16(index);
2952 			while (id != 0xffff) {
2953 				index += 2;
2954 				switch (id >> 13) {
2955 				case 0:
2956 					reg = (id & 0x1fff) * 4;
2957 					val = RBIOS32(index);
2958 					WREG32(reg, val);
2959 					break;
2960 				case 2:
2961 					reg = (id & 0x1fff) * 4;
2962 					and_mask = RBIOS32(index);
2963 					index += 4;
2964 					or_mask = RBIOS32(index);
2965 					index += 4;
2966 					val = RREG32(reg);
2967 					val = (val & and_mask) | or_mask;
2968 					WREG32(reg, val);
2969 					break;
2970 				case 4:
2971 					val = RBIOS16(index);
2972 					index += 2;
2973 					udelay(val);
2974 					break;
2975 				case 5:
2976 					reg = id & 0x1fff;
2977 					and_mask = RBIOS32(index);
2978 					index += 4;
2979 					or_mask = RBIOS32(index);
2980 					index += 4;
2981 					val = RREG32_PLL(reg);
2982 					val = (val & and_mask) | or_mask;
2983 					WREG32_PLL(reg, val);
2984 					break;
2985 				case 6:
2986 					reg = id & 0x1fff;
2987 					val = RBIOS8(index);
2988 					index += 1;
2989 					radeon_i2c_put_byte(tmds->i2c_bus,
2990 							    tmds->slave_addr,
2991 							    reg, val);
2992 					break;
2993 				default:
2994 					DRM_ERROR("Unknown id %d\n", id >> 13);
2995 					break;
2996 				}
2997 				id = RBIOS16(index);
2998 			}
2999 			return true;
3000 		}
3001 	}
3002 	return false;
3003 }
3004 
3005 static void combios_parse_mmio_table(struct drm_device *dev, uint16_t offset)
3006 {
3007 	struct radeon_device *rdev = dev->dev_private;
3008 
3009 	if (offset) {
3010 		while (RBIOS16(offset)) {
3011 			uint16_t cmd = ((RBIOS16(offset) & 0xe000) >> 13);
3012 			uint32_t addr = (RBIOS16(offset) & 0x1fff);
3013 			uint32_t val, and_mask, or_mask;
3014 			uint32_t tmp;
3015 
3016 			offset += 2;
3017 			switch (cmd) {
3018 			case 0:
3019 				val = RBIOS32(offset);
3020 				offset += 4;
3021 				WREG32(addr, val);
3022 				break;
3023 			case 1:
3024 				val = RBIOS32(offset);
3025 				offset += 4;
3026 				WREG32(addr, val);
3027 				break;
3028 			case 2:
3029 				and_mask = RBIOS32(offset);
3030 				offset += 4;
3031 				or_mask = RBIOS32(offset);
3032 				offset += 4;
3033 				tmp = RREG32(addr);
3034 				tmp &= and_mask;
3035 				tmp |= or_mask;
3036 				WREG32(addr, tmp);
3037 				break;
3038 			case 3:
3039 				and_mask = RBIOS32(offset);
3040 				offset += 4;
3041 				or_mask = RBIOS32(offset);
3042 				offset += 4;
3043 				tmp = RREG32(addr);
3044 				tmp &= and_mask;
3045 				tmp |= or_mask;
3046 				WREG32(addr, tmp);
3047 				break;
3048 			case 4:
3049 				val = RBIOS16(offset);
3050 				offset += 2;
3051 				udelay(val);
3052 				break;
3053 			case 5:
3054 				val = RBIOS16(offset);
3055 				offset += 2;
3056 				switch (addr) {
3057 				case 8:
3058 					while (val--) {
3059 						if (!
3060 						    (RREG32_PLL
3061 						     (RADEON_CLK_PWRMGT_CNTL) &
3062 						     RADEON_MC_BUSY))
3063 							break;
3064 					}
3065 					break;
3066 				case 9:
3067 					while (val--) {
3068 						if ((RREG32(RADEON_MC_STATUS) &
3069 						     RADEON_MC_IDLE))
3070 							break;
3071 					}
3072 					break;
3073 				default:
3074 					break;
3075 				}
3076 				break;
3077 			default:
3078 				break;
3079 			}
3080 		}
3081 	}
3082 }
3083 
3084 static void combios_parse_pll_table(struct drm_device *dev, uint16_t offset)
3085 {
3086 	struct radeon_device *rdev = dev->dev_private;
3087 
3088 	if (offset) {
3089 		while (RBIOS8(offset)) {
3090 			uint8_t cmd = ((RBIOS8(offset) & 0xc0) >> 6);
3091 			uint8_t addr = (RBIOS8(offset) & 0x3f);
3092 			uint32_t val, shift, tmp;
3093 			uint32_t and_mask, or_mask;
3094 
3095 			offset++;
3096 			switch (cmd) {
3097 			case 0:
3098 				val = RBIOS32(offset);
3099 				offset += 4;
3100 				WREG32_PLL(addr, val);
3101 				break;
3102 			case 1:
3103 				shift = RBIOS8(offset) * 8;
3104 				offset++;
3105 				and_mask = RBIOS8(offset) << shift;
3106 				and_mask |= ~(0xff << shift);
3107 				offset++;
3108 				or_mask = RBIOS8(offset) << shift;
3109 				offset++;
3110 				tmp = RREG32_PLL(addr);
3111 				tmp &= and_mask;
3112 				tmp |= or_mask;
3113 				WREG32_PLL(addr, tmp);
3114 				break;
3115 			case 2:
3116 			case 3:
3117 				tmp = 1000;
3118 				switch (addr) {
3119 				case 1:
3120 					udelay(150);
3121 					break;
3122 				case 2:
3123 					mdelay(1);
3124 					break;
3125 				case 3:
3126 					while (tmp--) {
3127 						if (!
3128 						    (RREG32_PLL
3129 						     (RADEON_CLK_PWRMGT_CNTL) &
3130 						     RADEON_MC_BUSY))
3131 							break;
3132 					}
3133 					break;
3134 				case 4:
3135 					while (tmp--) {
3136 						if (RREG32_PLL
3137 						    (RADEON_CLK_PWRMGT_CNTL) &
3138 						    RADEON_DLL_READY)
3139 							break;
3140 					}
3141 					break;
3142 				case 5:
3143 					tmp =
3144 					    RREG32_PLL(RADEON_CLK_PWRMGT_CNTL);
3145 					if (tmp & RADEON_CG_NO1_DEBUG_0) {
3146 #if 0
3147 						uint32_t mclk_cntl =
3148 						    RREG32_PLL
3149 						    (RADEON_MCLK_CNTL);
3150 						mclk_cntl &= 0xffff0000;
3151 						/*mclk_cntl |= 0x00001111;*//* ??? */
3152 						WREG32_PLL(RADEON_MCLK_CNTL,
3153 							   mclk_cntl);
3154 						mdelay(10);
3155 #endif
3156 						WREG32_PLL
3157 						    (RADEON_CLK_PWRMGT_CNTL,
3158 						     tmp &
3159 						     ~RADEON_CG_NO1_DEBUG_0);
3160 						mdelay(10);
3161 					}
3162 					break;
3163 				default:
3164 					break;
3165 				}
3166 				break;
3167 			default:
3168 				break;
3169 			}
3170 		}
3171 	}
3172 }
3173 
3174 static void combios_parse_ram_reset_table(struct drm_device *dev,
3175 					  uint16_t offset)
3176 {
3177 	struct radeon_device *rdev = dev->dev_private;
3178 	uint32_t tmp;
3179 
3180 	if (offset) {
3181 		uint8_t val = RBIOS8(offset);
3182 		while (val != 0xff) {
3183 			offset++;
3184 
3185 			if (val == 0x0f) {
3186 				uint32_t channel_complete_mask;
3187 
3188 				if (ASIC_IS_R300(rdev))
3189 					channel_complete_mask =
3190 					    R300_MEM_PWRUP_COMPLETE;
3191 				else
3192 					channel_complete_mask =
3193 					    RADEON_MEM_PWRUP_COMPLETE;
3194 				tmp = 20000;
3195 				while (tmp--) {
3196 					if ((RREG32(RADEON_MEM_STR_CNTL) &
3197 					     channel_complete_mask) ==
3198 					    channel_complete_mask)
3199 						break;
3200 				}
3201 			} else {
3202 				uint32_t or_mask = RBIOS16(offset);
3203 				offset += 2;
3204 
3205 				tmp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
3206 				tmp &= RADEON_SDRAM_MODE_MASK;
3207 				tmp |= or_mask;
3208 				WREG32(RADEON_MEM_SDRAM_MODE_REG, tmp);
3209 
3210 				or_mask = val << 24;
3211 				tmp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
3212 				tmp &= RADEON_B3MEM_RESET_MASK;
3213 				tmp |= or_mask;
3214 				WREG32(RADEON_MEM_SDRAM_MODE_REG, tmp);
3215 			}
3216 			val = RBIOS8(offset);
3217 		}
3218 	}
3219 }
3220 
3221 static uint32_t combios_detect_ram(struct drm_device *dev, int ram,
3222 				   int mem_addr_mapping)
3223 {
3224 	struct radeon_device *rdev = dev->dev_private;
3225 	uint32_t mem_cntl;
3226 	uint32_t mem_size;
3227 	uint32_t addr = 0;
3228 
3229 	mem_cntl = RREG32(RADEON_MEM_CNTL);
3230 	if (mem_cntl & RV100_HALF_MODE)
3231 		ram /= 2;
3232 	mem_size = ram;
3233 	mem_cntl &= ~(0xff << 8);
3234 	mem_cntl |= (mem_addr_mapping & 0xff) << 8;
3235 	WREG32(RADEON_MEM_CNTL, mem_cntl);
3236 	RREG32(RADEON_MEM_CNTL);
3237 
3238 	/* sdram reset ? */
3239 
3240 	/* something like this????  */
3241 	while (ram--) {
3242 		addr = ram * 1024 * 1024;
3243 		/* write to each page */
3244 		WREG32_IDX((addr) | RADEON_MM_APER, 0xdeadbeef);
3245 		/* read back and verify */
3246 		if (RREG32_IDX((addr) | RADEON_MM_APER) != 0xdeadbeef)
3247 			return 0;
3248 	}
3249 
3250 	return mem_size;
3251 }
3252 
3253 static void combios_write_ram_size(struct drm_device *dev)
3254 {
3255 	struct radeon_device *rdev = dev->dev_private;
3256 	uint8_t rev;
3257 	uint16_t offset;
3258 	uint32_t mem_size = 0;
3259 	uint32_t mem_cntl = 0;
3260 
3261 	/* should do something smarter here I guess... */
3262 	if (rdev->flags & RADEON_IS_IGP)
3263 		return;
3264 
3265 	/* first check detected mem table */
3266 	offset = combios_get_table_offset(dev, COMBIOS_DETECTED_MEM_TABLE);
3267 	if (offset) {
3268 		rev = RBIOS8(offset);
3269 		if (rev < 3) {
3270 			mem_cntl = RBIOS32(offset + 1);
3271 			mem_size = RBIOS16(offset + 5);
3272 			if ((rdev->family < CHIP_R200) &&
3273 			    !ASIC_IS_RN50(rdev))
3274 				WREG32(RADEON_MEM_CNTL, mem_cntl);
3275 		}
3276 	}
3277 
3278 	if (!mem_size) {
3279 		offset =
3280 		    combios_get_table_offset(dev, COMBIOS_MEM_CONFIG_TABLE);
3281 		if (offset) {
3282 			rev = RBIOS8(offset - 1);
3283 			if (rev < 1) {
3284 				if ((rdev->family < CHIP_R200)
3285 				    && !ASIC_IS_RN50(rdev)) {
3286 					int ram = 0;
3287 					int mem_addr_mapping = 0;
3288 
3289 					while (RBIOS8(offset)) {
3290 						ram = RBIOS8(offset);
3291 						mem_addr_mapping =
3292 						    RBIOS8(offset + 1);
3293 						if (mem_addr_mapping != 0x25)
3294 							ram *= 2;
3295 						mem_size =
3296 						    combios_detect_ram(dev, ram,
3297 								       mem_addr_mapping);
3298 						if (mem_size)
3299 							break;
3300 						offset += 2;
3301 					}
3302 				} else
3303 					mem_size = RBIOS8(offset);
3304 			} else {
3305 				mem_size = RBIOS8(offset);
3306 				mem_size *= 2;	/* convert to MB */
3307 			}
3308 		}
3309 	}
3310 
3311 	mem_size *= (1024 * 1024);	/* convert to bytes */
3312 	WREG32(RADEON_CONFIG_MEMSIZE, mem_size);
3313 }
3314 
3315 void radeon_combios_asic_init(struct drm_device *dev)
3316 {
3317 	struct radeon_device *rdev = dev->dev_private;
3318 	uint16_t table;
3319 
3320 	/* port hardcoded mac stuff from radeonfb */
3321 	if (rdev->bios == NULL)
3322 		return;
3323 
3324 	/* ASIC INIT 1 */
3325 	table = combios_get_table_offset(dev, COMBIOS_ASIC_INIT_1_TABLE);
3326 	if (table)
3327 		combios_parse_mmio_table(dev, table);
3328 
3329 	/* PLL INIT */
3330 	table = combios_get_table_offset(dev, COMBIOS_PLL_INIT_TABLE);
3331 	if (table)
3332 		combios_parse_pll_table(dev, table);
3333 
3334 	/* ASIC INIT 2 */
3335 	table = combios_get_table_offset(dev, COMBIOS_ASIC_INIT_2_TABLE);
3336 	if (table)
3337 		combios_parse_mmio_table(dev, table);
3338 
3339 	if (!(rdev->flags & RADEON_IS_IGP)) {
3340 		/* ASIC INIT 4 */
3341 		table =
3342 		    combios_get_table_offset(dev, COMBIOS_ASIC_INIT_4_TABLE);
3343 		if (table)
3344 			combios_parse_mmio_table(dev, table);
3345 
3346 		/* RAM RESET */
3347 		table = combios_get_table_offset(dev, COMBIOS_RAM_RESET_TABLE);
3348 		if (table)
3349 			combios_parse_ram_reset_table(dev, table);
3350 
3351 		/* ASIC INIT 3 */
3352 		table =
3353 		    combios_get_table_offset(dev, COMBIOS_ASIC_INIT_3_TABLE);
3354 		if (table)
3355 			combios_parse_mmio_table(dev, table);
3356 
3357 		/* write CONFIG_MEMSIZE */
3358 		combios_write_ram_size(dev);
3359 	}
3360 
3361 	/* quirk for rs4xx HP nx6125 laptop to make it resume
3362 	 * - it hangs on resume inside the dynclk 1 table.
3363 	 */
3364 	if (rdev->family == CHIP_RS480 &&
3365 	    rdev->pdev->subsystem_vendor == 0x103c &&
3366 	    rdev->pdev->subsystem_device == 0x308b)
3367 		return;
3368 
3369 	/* quirk for rs4xx HP dv5000 laptop to make it resume
3370 	 * - it hangs on resume inside the dynclk 1 table.
3371 	 */
3372 	if (rdev->family == CHIP_RS480 &&
3373 	    rdev->pdev->subsystem_vendor == 0x103c &&
3374 	    rdev->pdev->subsystem_device == 0x30a4)
3375 		return;
3376 
3377 	/* quirk for rs4xx Compaq Presario V5245EU laptop to make it resume
3378 	 * - it hangs on resume inside the dynclk 1 table.
3379 	 */
3380 	if (rdev->family == CHIP_RS480 &&
3381 	    rdev->pdev->subsystem_vendor == 0x103c &&
3382 	    rdev->pdev->subsystem_device == 0x30ae)
3383 		return;
3384 
3385 	/* DYN CLK 1 */
3386 	table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);
3387 	if (table)
3388 		combios_parse_pll_table(dev, table);
3389 
3390 }
3391 
3392 void radeon_combios_initialize_bios_scratch_regs(struct drm_device *dev)
3393 {
3394 	struct radeon_device *rdev = dev->dev_private;
3395 	uint32_t bios_0_scratch, bios_6_scratch, bios_7_scratch;
3396 
3397 	bios_0_scratch = RREG32(RADEON_BIOS_0_SCRATCH);
3398 	bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
3399 	bios_7_scratch = RREG32(RADEON_BIOS_7_SCRATCH);
3400 
3401 	/* let the bios control the backlight */
3402 	bios_0_scratch &= ~RADEON_DRIVER_BRIGHTNESS_EN;
3403 
3404 	/* tell the bios not to handle mode switching */
3405 	bios_6_scratch |= (RADEON_DISPLAY_SWITCHING_DIS |
3406 			   RADEON_ACC_MODE_CHANGE);
3407 
3408 	/* tell the bios a driver is loaded */
3409 	bios_7_scratch |= RADEON_DRV_LOADED;
3410 
3411 	WREG32(RADEON_BIOS_0_SCRATCH, bios_0_scratch);
3412 	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
3413 	WREG32(RADEON_BIOS_7_SCRATCH, bios_7_scratch);
3414 }
3415 
3416 void radeon_combios_output_lock(struct drm_encoder *encoder, bool lock)
3417 {
3418 	struct drm_device *dev = encoder->dev;
3419 	struct radeon_device *rdev = dev->dev_private;
3420 	uint32_t bios_6_scratch;
3421 
3422 	bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
3423 
3424 	if (lock)
3425 		bios_6_scratch |= RADEON_DRIVER_CRITICAL;
3426 	else
3427 		bios_6_scratch &= ~RADEON_DRIVER_CRITICAL;
3428 
3429 	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
3430 }
3431 
3432 void
3433 radeon_combios_connected_scratch_regs(struct drm_connector *connector,
3434 				      struct drm_encoder *encoder,
3435 				      bool connected)
3436 {
3437 	struct drm_device *dev = connector->dev;
3438 	struct radeon_device *rdev = dev->dev_private;
3439 	struct radeon_connector *radeon_connector =
3440 	    to_radeon_connector(connector);
3441 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
3442 	uint32_t bios_4_scratch = RREG32(RADEON_BIOS_4_SCRATCH);
3443 	uint32_t bios_5_scratch = RREG32(RADEON_BIOS_5_SCRATCH);
3444 
3445 	if ((radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) &&
3446 	    (radeon_connector->devices & ATOM_DEVICE_TV1_SUPPORT)) {
3447 		if (connected) {
3448 			DRM_DEBUG_KMS("TV1 connected\n");
3449 			/* fix me */
3450 			bios_4_scratch |= RADEON_TV1_ATTACHED_SVIDEO;
3451 			/*save->bios_4_scratch |= RADEON_TV1_ATTACHED_COMP; */
3452 			bios_5_scratch |= RADEON_TV1_ON;
3453 			bios_5_scratch |= RADEON_ACC_REQ_TV1;
3454 		} else {
3455 			DRM_DEBUG_KMS("TV1 disconnected\n");
3456 			bios_4_scratch &= ~RADEON_TV1_ATTACHED_MASK;
3457 			bios_5_scratch &= ~RADEON_TV1_ON;
3458 			bios_5_scratch &= ~RADEON_ACC_REQ_TV1;
3459 		}
3460 	}
3461 	if ((radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) &&
3462 	    (radeon_connector->devices & ATOM_DEVICE_LCD1_SUPPORT)) {
3463 		if (connected) {
3464 			DRM_DEBUG_KMS("LCD1 connected\n");
3465 			bios_4_scratch |= RADEON_LCD1_ATTACHED;
3466 			bios_5_scratch |= RADEON_LCD1_ON;
3467 			bios_5_scratch |= RADEON_ACC_REQ_LCD1;
3468 		} else {
3469 			DRM_DEBUG_KMS("LCD1 disconnected\n");
3470 			bios_4_scratch &= ~RADEON_LCD1_ATTACHED;
3471 			bios_5_scratch &= ~RADEON_LCD1_ON;
3472 			bios_5_scratch &= ~RADEON_ACC_REQ_LCD1;
3473 		}
3474 	}
3475 	if ((radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) &&
3476 	    (radeon_connector->devices & ATOM_DEVICE_CRT1_SUPPORT)) {
3477 		if (connected) {
3478 			DRM_DEBUG_KMS("CRT1 connected\n");
3479 			bios_4_scratch |= RADEON_CRT1_ATTACHED_COLOR;
3480 			bios_5_scratch |= RADEON_CRT1_ON;
3481 			bios_5_scratch |= RADEON_ACC_REQ_CRT1;
3482 		} else {
3483 			DRM_DEBUG_KMS("CRT1 disconnected\n");
3484 			bios_4_scratch &= ~RADEON_CRT1_ATTACHED_MASK;
3485 			bios_5_scratch &= ~RADEON_CRT1_ON;
3486 			bios_5_scratch &= ~RADEON_ACC_REQ_CRT1;
3487 		}
3488 	}
3489 	if ((radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) &&
3490 	    (radeon_connector->devices & ATOM_DEVICE_CRT2_SUPPORT)) {
3491 		if (connected) {
3492 			DRM_DEBUG_KMS("CRT2 connected\n");
3493 			bios_4_scratch |= RADEON_CRT2_ATTACHED_COLOR;
3494 			bios_5_scratch |= RADEON_CRT2_ON;
3495 			bios_5_scratch |= RADEON_ACC_REQ_CRT2;
3496 		} else {
3497 			DRM_DEBUG_KMS("CRT2 disconnected\n");
3498 			bios_4_scratch &= ~RADEON_CRT2_ATTACHED_MASK;
3499 			bios_5_scratch &= ~RADEON_CRT2_ON;
3500 			bios_5_scratch &= ~RADEON_ACC_REQ_CRT2;
3501 		}
3502 	}
3503 	if ((radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) &&
3504 	    (radeon_connector->devices & ATOM_DEVICE_DFP1_SUPPORT)) {
3505 		if (connected) {
3506 			DRM_DEBUG_KMS("DFP1 connected\n");
3507 			bios_4_scratch |= RADEON_DFP1_ATTACHED;
3508 			bios_5_scratch |= RADEON_DFP1_ON;
3509 			bios_5_scratch |= RADEON_ACC_REQ_DFP1;
3510 		} else {
3511 			DRM_DEBUG_KMS("DFP1 disconnected\n");
3512 			bios_4_scratch &= ~RADEON_DFP1_ATTACHED;
3513 			bios_5_scratch &= ~RADEON_DFP1_ON;
3514 			bios_5_scratch &= ~RADEON_ACC_REQ_DFP1;
3515 		}
3516 	}
3517 	if ((radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) &&
3518 	    (radeon_connector->devices & ATOM_DEVICE_DFP2_SUPPORT)) {
3519 		if (connected) {
3520 			DRM_DEBUG_KMS("DFP2 connected\n");
3521 			bios_4_scratch |= RADEON_DFP2_ATTACHED;
3522 			bios_5_scratch |= RADEON_DFP2_ON;
3523 			bios_5_scratch |= RADEON_ACC_REQ_DFP2;
3524 		} else {
3525 			DRM_DEBUG_KMS("DFP2 disconnected\n");
3526 			bios_4_scratch &= ~RADEON_DFP2_ATTACHED;
3527 			bios_5_scratch &= ~RADEON_DFP2_ON;
3528 			bios_5_scratch &= ~RADEON_ACC_REQ_DFP2;
3529 		}
3530 	}
3531 	WREG32(RADEON_BIOS_4_SCRATCH, bios_4_scratch);
3532 	WREG32(RADEON_BIOS_5_SCRATCH, bios_5_scratch);
3533 }
3534 
3535 void
3536 radeon_combios_encoder_crtc_scratch_regs(struct drm_encoder *encoder, int crtc)
3537 {
3538 	struct drm_device *dev = encoder->dev;
3539 	struct radeon_device *rdev = dev->dev_private;
3540 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
3541 	uint32_t bios_5_scratch = RREG32(RADEON_BIOS_5_SCRATCH);
3542 
3543 	if (radeon_encoder->devices & ATOM_DEVICE_TV1_SUPPORT) {
3544 		bios_5_scratch &= ~RADEON_TV1_CRTC_MASK;
3545 		bios_5_scratch |= (crtc << RADEON_TV1_CRTC_SHIFT);
3546 	}
3547 	if (radeon_encoder->devices & ATOM_DEVICE_CRT1_SUPPORT) {
3548 		bios_5_scratch &= ~RADEON_CRT1_CRTC_MASK;
3549 		bios_5_scratch |= (crtc << RADEON_CRT1_CRTC_SHIFT);
3550 	}
3551 	if (radeon_encoder->devices & ATOM_DEVICE_CRT2_SUPPORT) {
3552 		bios_5_scratch &= ~RADEON_CRT2_CRTC_MASK;
3553 		bios_5_scratch |= (crtc << RADEON_CRT2_CRTC_SHIFT);
3554 	}
3555 	if (radeon_encoder->devices & ATOM_DEVICE_LCD1_SUPPORT) {
3556 		bios_5_scratch &= ~RADEON_LCD1_CRTC_MASK;
3557 		bios_5_scratch |= (crtc << RADEON_LCD1_CRTC_SHIFT);
3558 	}
3559 	if (radeon_encoder->devices & ATOM_DEVICE_DFP1_SUPPORT) {
3560 		bios_5_scratch &= ~RADEON_DFP1_CRTC_MASK;
3561 		bios_5_scratch |= (crtc << RADEON_DFP1_CRTC_SHIFT);
3562 	}
3563 	if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) {
3564 		bios_5_scratch &= ~RADEON_DFP2_CRTC_MASK;
3565 		bios_5_scratch |= (crtc << RADEON_DFP2_CRTC_SHIFT);
3566 	}
3567 	WREG32(RADEON_BIOS_5_SCRATCH, bios_5_scratch);
3568 }
3569 
3570 void
3571 radeon_combios_encoder_dpms_scratch_regs(struct drm_encoder *encoder, bool on)
3572 {
3573 	struct drm_device *dev = encoder->dev;
3574 	struct radeon_device *rdev = dev->dev_private;
3575 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
3576 	uint32_t bios_6_scratch = RREG32(RADEON_BIOS_6_SCRATCH);
3577 
3578 	if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
3579 		if (on)
3580 			bios_6_scratch |= RADEON_TV_DPMS_ON;
3581 		else
3582 			bios_6_scratch &= ~RADEON_TV_DPMS_ON;
3583 	}
3584 	if (radeon_encoder->devices & (ATOM_DEVICE_CRT_SUPPORT)) {
3585 		if (on)
3586 			bios_6_scratch |= RADEON_CRT_DPMS_ON;
3587 		else
3588 			bios_6_scratch &= ~RADEON_CRT_DPMS_ON;
3589 	}
3590 	if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
3591 		if (on)
3592 			bios_6_scratch |= RADEON_LCD_DPMS_ON;
3593 		else
3594 			bios_6_scratch &= ~RADEON_LCD_DPMS_ON;
3595 	}
3596 	if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
3597 		if (on)
3598 			bios_6_scratch |= RADEON_DFP_DPMS_ON;
3599 		else
3600 			bios_6_scratch &= ~RADEON_DFP_DPMS_ON;
3601 	}
3602 	WREG32(RADEON_BIOS_6_SCRATCH, bios_6_scratch);
3603 }
3604