xref: /linux/drivers/gpu/drm/radeon/radeon_connectors.c (revision ee057c8c194b9283f4137b253b70e292693a39f0)
1 /*
2  * Copyright 2007-8 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21  * OTHER DEALINGS IN THE SOFTWARE.
22  *
23  * Authors: Dave Airlie
24  *          Alex Deucher
25  */
26 
27 #include <drm/display/drm_dp_mst_helper.h>
28 #include <drm/drm_edid.h>
29 #include <drm/drm_crtc_helper.h>
30 #include <drm/drm_modeset_helper_vtables.h>
31 #include <drm/drm_probe_helper.h>
32 #include <drm/radeon_drm.h>
33 #include "radeon.h"
34 #include "radeon_audio.h"
35 #include "atom.h"
36 
37 #include <linux/pm_runtime.h>
38 #include <linux/vga_switcheroo.h>
39 
40 void radeon_connector_hotplug(struct drm_connector *connector)
41 {
42 	struct drm_device *dev = connector->dev;
43 	struct radeon_device *rdev = dev->dev_private;
44 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
45 
46 	/* bail if the connector does not have hpd pin, e.g.,
47 	 * VGA, TV, etc.
48 	 */
49 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE)
50 		return;
51 
52 	radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
53 
54 	/* if the connector is already off, don't turn it back on */
55 	/* FIXME: This access isn't protected by any locks. */
56 	if (connector->dpms != DRM_MODE_DPMS_ON)
57 		return;
58 
59 	/* just deal with DP (not eDP) here. */
60 	if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
61 		struct radeon_connector_atom_dig *dig_connector =
62 			radeon_connector->con_priv;
63 
64 		/* if existing sink type was not DP no need to retrain */
65 		if (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT)
66 			return;
67 
68 		/* first get sink type as it may be reset after (un)plug */
69 		dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
70 		/* don't do anything if sink is not display port, i.e.,
71 		 * passive dp->(dvi|hdmi) adaptor
72 		 */
73 		if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT &&
74 		    radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) &&
75 		    radeon_dp_needs_link_train(radeon_connector)) {
76 			/* Don't start link training before we have the DPCD */
77 			if (!radeon_dp_getdpcd(radeon_connector))
78 				return;
79 
80 			/* Turn the connector off and back on immediately, which
81 			 * will trigger link training
82 			 */
83 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
84 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
85 		}
86 	}
87 }
88 
89 static void radeon_property_change_mode(struct drm_encoder *encoder)
90 {
91 	struct drm_crtc *crtc = encoder->crtc;
92 
93 	if (crtc && crtc->enabled) {
94 		drm_crtc_helper_set_mode(crtc, &crtc->mode,
95 					 crtc->x, crtc->y, crtc->primary->fb);
96 	}
97 }
98 
99 int radeon_get_monitor_bpc(struct drm_connector *connector)
100 {
101 	struct drm_device *dev = connector->dev;
102 	struct radeon_device *rdev = dev->dev_private;
103 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
104 	struct radeon_connector_atom_dig *dig_connector;
105 	int bpc = 8;
106 	int mode_clock, max_tmds_clock;
107 
108 	switch (connector->connector_type) {
109 	case DRM_MODE_CONNECTOR_DVII:
110 	case DRM_MODE_CONNECTOR_HDMIB:
111 		if (radeon_connector->use_digital) {
112 			if (connector->display_info.is_hdmi) {
113 				if (connector->display_info.bpc)
114 					bpc = connector->display_info.bpc;
115 			}
116 		}
117 		break;
118 	case DRM_MODE_CONNECTOR_DVID:
119 	case DRM_MODE_CONNECTOR_HDMIA:
120 		if (connector->display_info.is_hdmi) {
121 			if (connector->display_info.bpc)
122 				bpc = connector->display_info.bpc;
123 		}
124 		break;
125 	case DRM_MODE_CONNECTOR_DisplayPort:
126 		dig_connector = radeon_connector->con_priv;
127 		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
128 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) ||
129 		    connector->display_info.is_hdmi) {
130 			if (connector->display_info.bpc)
131 				bpc = connector->display_info.bpc;
132 		}
133 		break;
134 	case DRM_MODE_CONNECTOR_eDP:
135 	case DRM_MODE_CONNECTOR_LVDS:
136 		if (connector->display_info.bpc)
137 			bpc = connector->display_info.bpc;
138 		else if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
139 			const struct drm_connector_helper_funcs *connector_funcs =
140 				connector->helper_private;
141 			struct drm_encoder *encoder = connector_funcs->best_encoder(connector);
142 			struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
143 			struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
144 
145 			if (dig->lcd_misc & ATOM_PANEL_MISC_V13_6BIT_PER_COLOR)
146 				bpc = 6;
147 			else if (dig->lcd_misc & ATOM_PANEL_MISC_V13_8BIT_PER_COLOR)
148 				bpc = 8;
149 		}
150 		break;
151 	}
152 
153 	if (connector->display_info.is_hdmi) {
154 		/* hdmi deep color only implemented on DCE4+ */
155 		if ((bpc > 8) && !ASIC_IS_DCE4(rdev)) {
156 			DRM_DEBUG("%s: HDMI deep color %d bpc unsupported. Using 8 bpc.\n",
157 					  connector->name, bpc);
158 			bpc = 8;
159 		}
160 
161 		/*
162 		 * Pre DCE-8 hw can't handle > 12 bpc, and more than 12 bpc doesn't make
163 		 * much sense without support for > 12 bpc framebuffers. RGB 4:4:4 at
164 		 * 12 bpc is always supported on hdmi deep color sinks, as this is
165 		 * required by the HDMI-1.3 spec. Clamp to a safe 12 bpc maximum.
166 		 */
167 		if (bpc > 12) {
168 			DRM_DEBUG("%s: HDMI deep color %d bpc unsupported. Using 12 bpc.\n",
169 					  connector->name, bpc);
170 			bpc = 12;
171 		}
172 
173 		/* Any defined maximum tmds clock limit we must not exceed? */
174 		if (connector->display_info.max_tmds_clock > 0) {
175 			/* mode_clock is clock in kHz for mode to be modeset on this connector */
176 			mode_clock = radeon_connector->pixelclock_for_modeset;
177 
178 			/* Maximum allowable input clock in kHz */
179 			max_tmds_clock = connector->display_info.max_tmds_clock;
180 
181 			DRM_DEBUG("%s: hdmi mode dotclock %d kHz, max tmds input clock %d kHz.\n",
182 					  connector->name, mode_clock, max_tmds_clock);
183 
184 			/* Check if bpc is within clock limit. Try to degrade gracefully otherwise */
185 			if ((bpc == 12) && (mode_clock * 3/2 > max_tmds_clock)) {
186 				if ((connector->display_info.edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30) &&
187 					(mode_clock * 5/4 <= max_tmds_clock))
188 					bpc = 10;
189 				else
190 					bpc = 8;
191 
192 				DRM_DEBUG("%s: HDMI deep color 12 bpc exceeds max tmds clock. Using %d bpc.\n",
193 						  connector->name, bpc);
194 			}
195 
196 			if ((bpc == 10) && (mode_clock * 5/4 > max_tmds_clock)) {
197 				bpc = 8;
198 				DRM_DEBUG("%s: HDMI deep color 10 bpc exceeds max tmds clock. Using %d bpc.\n",
199 						  connector->name, bpc);
200 			}
201 		} else if (bpc > 8) {
202 			/* max_tmds_clock missing, but hdmi spec mandates it for deep color. */
203 			DRM_DEBUG("%s: Required max tmds clock for HDMI deep color missing. Using 8 bpc.\n",
204 					  connector->name);
205 			bpc = 8;
206 		}
207 	}
208 
209 	if ((radeon_deep_color == 0) && (bpc > 8)) {
210 		DRM_DEBUG("%s: Deep color disabled. Set radeon module param deep_color=1 to enable.\n",
211 				  connector->name);
212 		bpc = 8;
213 	}
214 
215 	DRM_DEBUG("%s: Display bpc=%d, returned bpc=%d\n",
216 			  connector->name, connector->display_info.bpc, bpc);
217 
218 	return bpc;
219 }
220 
221 static void
222 radeon_connector_update_scratch_regs(struct drm_connector *connector, enum drm_connector_status status)
223 {
224 	struct drm_device *dev = connector->dev;
225 	struct radeon_device *rdev = dev->dev_private;
226 	struct drm_encoder *best_encoder;
227 	struct drm_encoder *encoder;
228 	const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
229 	bool connected;
230 
231 	best_encoder = connector_funcs->best_encoder(connector);
232 
233 	drm_connector_for_each_possible_encoder(connector, encoder) {
234 		if ((encoder == best_encoder) && (status == connector_status_connected))
235 			connected = true;
236 		else
237 			connected = false;
238 
239 		if (rdev->is_atom_bios)
240 			radeon_atombios_connected_scratch_regs(connector, encoder, connected);
241 		else
242 			radeon_combios_connected_scratch_regs(connector, encoder, connected);
243 	}
244 }
245 
246 static struct drm_encoder *radeon_find_encoder(struct drm_connector *connector, int encoder_type)
247 {
248 	struct drm_encoder *encoder;
249 
250 	drm_connector_for_each_possible_encoder(connector, encoder) {
251 		if (encoder->encoder_type == encoder_type)
252 			return encoder;
253 	}
254 
255 	return NULL;
256 }
257 
258 static void radeon_connector_get_edid(struct drm_connector *connector)
259 {
260 	struct drm_device *dev = connector->dev;
261 	struct radeon_device *rdev = dev->dev_private;
262 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
263 
264 	if (radeon_connector->edid)
265 		return;
266 
267 	/* on hw with routers, select right port */
268 	if (radeon_connector->router.ddc_valid)
269 		radeon_router_select_ddc_port(radeon_connector);
270 
271 	if ((radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
272 	     ENCODER_OBJECT_ID_NONE) &&
273 	    radeon_connector->ddc_bus->has_aux) {
274 		radeon_connector->edid = drm_get_edid(connector,
275 						      &radeon_connector->ddc_bus->aux.ddc);
276 	} else if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
277 		   (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) {
278 		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
279 
280 		if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
281 		     dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) &&
282 		    radeon_connector->ddc_bus->has_aux)
283 			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
284 							      &radeon_connector->ddc_bus->aux.ddc);
285 		else if (radeon_connector->ddc_bus)
286 			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
287 							      &radeon_connector->ddc_bus->adapter);
288 	} else if (vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC &&
289 		   connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
290 		   radeon_connector->ddc_bus) {
291 		radeon_connector->edid = drm_get_edid_switcheroo(&radeon_connector->base,
292 								 &radeon_connector->ddc_bus->adapter);
293 	} else if (radeon_connector->ddc_bus) {
294 		radeon_connector->edid = drm_get_edid(&radeon_connector->base,
295 						      &radeon_connector->ddc_bus->adapter);
296 	}
297 
298 	if (!radeon_connector->edid) {
299 		/* don't fetch the edid from the vbios if ddc fails and runpm is
300 		 * enabled so we report disconnected.
301 		 */
302 		if ((rdev->flags & RADEON_IS_PX) && (radeon_runtime_pm != 0))
303 			return;
304 
305 		if (rdev->is_atom_bios) {
306 			/* some laptops provide a hardcoded edid in rom for LCDs */
307 			if (((connector->connector_type == DRM_MODE_CONNECTOR_LVDS) ||
308 			     (connector->connector_type == DRM_MODE_CONNECTOR_eDP)))
309 				radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
310 		} else {
311 			/* some servers provide a hardcoded edid in rom for KVMs */
312 			radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
313 		}
314 	}
315 }
316 
317 static void radeon_connector_free_edid(struct drm_connector *connector)
318 {
319 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
320 
321 	kfree(radeon_connector->edid);
322 	radeon_connector->edid = NULL;
323 }
324 
325 static int radeon_ddc_get_modes(struct drm_connector *connector)
326 {
327 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
328 	int ret;
329 
330 	if (radeon_connector->edid) {
331 		drm_connector_update_edid_property(connector, radeon_connector->edid);
332 		ret = drm_add_edid_modes(connector, radeon_connector->edid);
333 		return ret;
334 	}
335 	drm_connector_update_edid_property(connector, NULL);
336 	return 0;
337 }
338 
339 static struct drm_encoder *radeon_best_single_encoder(struct drm_connector *connector)
340 {
341 	struct drm_encoder *encoder;
342 
343 	/* pick the first one */
344 	drm_connector_for_each_possible_encoder(connector, encoder)
345 		return encoder;
346 
347 	return NULL;
348 }
349 
350 static void radeon_get_native_mode(struct drm_connector *connector)
351 {
352 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
353 	struct radeon_encoder *radeon_encoder;
354 
355 	if (encoder == NULL)
356 		return;
357 
358 	radeon_encoder = to_radeon_encoder(encoder);
359 
360 	if (!list_empty(&connector->probed_modes)) {
361 		struct drm_display_mode *preferred_mode =
362 			list_first_entry(&connector->probed_modes,
363 					 struct drm_display_mode, head);
364 
365 		radeon_encoder->native_mode = *preferred_mode;
366 	} else {
367 		radeon_encoder->native_mode.clock = 0;
368 	}
369 }
370 
371 /*
372  * radeon_connector_analog_encoder_conflict_solve
373  * - search for other connectors sharing this encoder
374  *   if priority is true, then set them disconnected if this is connected
375  *   if priority is false, set us disconnected if they are connected
376  */
377 static enum drm_connector_status
378 radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
379 					       struct drm_encoder *encoder,
380 					       enum drm_connector_status current_status,
381 					       bool priority)
382 {
383 	struct drm_device *dev = connector->dev;
384 	struct drm_connector *conflict;
385 	struct radeon_connector *radeon_conflict;
386 
387 	list_for_each_entry(conflict, &dev->mode_config.connector_list, head) {
388 		struct drm_encoder *enc;
389 
390 		if (conflict == connector)
391 			continue;
392 
393 		radeon_conflict = to_radeon_connector(conflict);
394 
395 		drm_connector_for_each_possible_encoder(conflict, enc) {
396 			/* if the IDs match */
397 			if (enc == encoder) {
398 				if (conflict->status != connector_status_connected)
399 					continue;
400 
401 				if (radeon_conflict->use_digital)
402 					continue;
403 
404 				if (priority) {
405 					DRM_DEBUG_KMS("1: conflicting encoders switching off %s\n",
406 						      conflict->name);
407 					DRM_DEBUG_KMS("in favor of %s\n",
408 						      connector->name);
409 					conflict->status = connector_status_disconnected;
410 					radeon_connector_update_scratch_regs(conflict, connector_status_disconnected);
411 				} else {
412 					DRM_DEBUG_KMS("2: conflicting encoders switching off %s\n",
413 						      connector->name);
414 					DRM_DEBUG_KMS("in favor of %s\n",
415 						      conflict->name);
416 					current_status = connector_status_disconnected;
417 				}
418 				break;
419 			}
420 		}
421 	}
422 	return current_status;
423 
424 }
425 
426 static struct drm_display_mode *radeon_fp_native_mode(struct drm_encoder *encoder)
427 {
428 	struct drm_device *dev = encoder->dev;
429 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
430 	struct drm_display_mode *mode = NULL;
431 	struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
432 
433 	if (native_mode->hdisplay != 0 &&
434 	    native_mode->vdisplay != 0 &&
435 	    native_mode->clock != 0) {
436 		mode = drm_mode_duplicate(dev, native_mode);
437 		if (!mode)
438 			return NULL;
439 		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
440 		drm_mode_set_name(mode);
441 
442 		DRM_DEBUG_KMS("Adding native panel mode %s\n", mode->name);
443 	} else if (native_mode->hdisplay != 0 &&
444 		   native_mode->vdisplay != 0) {
445 		/* mac laptops without an edid */
446 		/* Note that this is not necessarily the exact panel mode,
447 		 * but an approximation based on the cvt formula.  For these
448 		 * systems we should ideally read the mode info out of the
449 		 * registers or add a mode table, but this works and is much
450 		 * simpler.
451 		 */
452 		mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
453 		if (!mode)
454 			return NULL;
455 		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
456 		DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name);
457 	}
458 	return mode;
459 }
460 
461 static void radeon_add_common_modes(struct drm_encoder *encoder, struct drm_connector *connector)
462 {
463 	struct drm_device *dev = encoder->dev;
464 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
465 	struct drm_display_mode *mode = NULL;
466 	struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
467 	int i;
468 	struct mode_size {
469 		int w;
470 		int h;
471 	} common_modes[17] = {
472 		{ 640,  480},
473 		{ 720,  480},
474 		{ 800,  600},
475 		{ 848,  480},
476 		{1024,  768},
477 		{1152,  768},
478 		{1280,  720},
479 		{1280,  800},
480 		{1280,  854},
481 		{1280,  960},
482 		{1280, 1024},
483 		{1440,  900},
484 		{1400, 1050},
485 		{1680, 1050},
486 		{1600, 1200},
487 		{1920, 1080},
488 		{1920, 1200}
489 	};
490 
491 	for (i = 0; i < 17; i++) {
492 		if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
493 			if (common_modes[i].w > 1024 ||
494 			    common_modes[i].h > 768)
495 				continue;
496 		}
497 		if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
498 			if (common_modes[i].w > native_mode->hdisplay ||
499 			    common_modes[i].h > native_mode->vdisplay ||
500 			    (common_modes[i].w == native_mode->hdisplay &&
501 			     common_modes[i].h == native_mode->vdisplay))
502 				continue;
503 		}
504 		if (common_modes[i].w < 320 || common_modes[i].h < 200)
505 			continue;
506 
507 		mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);
508 		drm_mode_probed_add(connector, mode);
509 	}
510 }
511 
512 static int radeon_connector_set_property(struct drm_connector *connector, struct drm_property *property,
513 				  uint64_t val)
514 {
515 	struct drm_device *dev = connector->dev;
516 	struct radeon_device *rdev = dev->dev_private;
517 	struct drm_encoder *encoder;
518 	struct radeon_encoder *radeon_encoder;
519 
520 	if (property == rdev->mode_info.coherent_mode_property) {
521 		struct radeon_encoder_atom_dig *dig;
522 		bool new_coherent_mode;
523 
524 		/* need to find digital encoder on connector */
525 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
526 		if (!encoder)
527 			return 0;
528 
529 		radeon_encoder = to_radeon_encoder(encoder);
530 
531 		if (!radeon_encoder->enc_priv)
532 			return 0;
533 
534 		dig = radeon_encoder->enc_priv;
535 		new_coherent_mode = val ? true : false;
536 		if (dig->coherent_mode != new_coherent_mode) {
537 			dig->coherent_mode = new_coherent_mode;
538 			radeon_property_change_mode(&radeon_encoder->base);
539 		}
540 	}
541 
542 	if (property == rdev->mode_info.audio_property) {
543 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
544 		/* need to find digital encoder on connector */
545 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
546 		if (!encoder)
547 			return 0;
548 
549 		radeon_encoder = to_radeon_encoder(encoder);
550 
551 		if (radeon_connector->audio != val) {
552 			radeon_connector->audio = val;
553 			radeon_property_change_mode(&radeon_encoder->base);
554 		}
555 	}
556 
557 	if (property == rdev->mode_info.dither_property) {
558 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
559 		/* need to find digital encoder on connector */
560 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
561 		if (!encoder)
562 			return 0;
563 
564 		radeon_encoder = to_radeon_encoder(encoder);
565 
566 		if (radeon_connector->dither != val) {
567 			radeon_connector->dither = val;
568 			radeon_property_change_mode(&radeon_encoder->base);
569 		}
570 	}
571 
572 	if (property == rdev->mode_info.underscan_property) {
573 		/* need to find digital encoder on connector */
574 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
575 		if (!encoder)
576 			return 0;
577 
578 		radeon_encoder = to_radeon_encoder(encoder);
579 
580 		if (radeon_encoder->underscan_type != val) {
581 			radeon_encoder->underscan_type = val;
582 			radeon_property_change_mode(&radeon_encoder->base);
583 		}
584 	}
585 
586 	if (property == rdev->mode_info.underscan_hborder_property) {
587 		/* need to find digital encoder on connector */
588 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
589 		if (!encoder)
590 			return 0;
591 
592 		radeon_encoder = to_radeon_encoder(encoder);
593 
594 		if (radeon_encoder->underscan_hborder != val) {
595 			radeon_encoder->underscan_hborder = val;
596 			radeon_property_change_mode(&radeon_encoder->base);
597 		}
598 	}
599 
600 	if (property == rdev->mode_info.underscan_vborder_property) {
601 		/* need to find digital encoder on connector */
602 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
603 		if (!encoder)
604 			return 0;
605 
606 		radeon_encoder = to_radeon_encoder(encoder);
607 
608 		if (radeon_encoder->underscan_vborder != val) {
609 			radeon_encoder->underscan_vborder = val;
610 			radeon_property_change_mode(&radeon_encoder->base);
611 		}
612 	}
613 
614 	if (property == rdev->mode_info.tv_std_property) {
615 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TVDAC);
616 		if (!encoder) {
617 			encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_DAC);
618 		}
619 
620 		if (!encoder)
621 			return 0;
622 
623 		radeon_encoder = to_radeon_encoder(encoder);
624 		if (!radeon_encoder->enc_priv)
625 			return 0;
626 		if (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom) {
627 			struct radeon_encoder_atom_dac *dac_int;
628 			dac_int = radeon_encoder->enc_priv;
629 			dac_int->tv_std = val;
630 		} else {
631 			struct radeon_encoder_tv_dac *dac_int;
632 			dac_int = radeon_encoder->enc_priv;
633 			dac_int->tv_std = val;
634 		}
635 		radeon_property_change_mode(&radeon_encoder->base);
636 	}
637 
638 	if (property == rdev->mode_info.load_detect_property) {
639 		struct radeon_connector *radeon_connector =
640 			to_radeon_connector(connector);
641 
642 		if (val == 0)
643 			radeon_connector->dac_load_detect = false;
644 		else
645 			radeon_connector->dac_load_detect = true;
646 	}
647 
648 	if (property == rdev->mode_info.tmds_pll_property) {
649 		struct radeon_encoder_int_tmds *tmds = NULL;
650 		bool ret = false;
651 		/* need to find digital encoder on connector */
652 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
653 		if (!encoder)
654 			return 0;
655 
656 		radeon_encoder = to_radeon_encoder(encoder);
657 
658 		tmds = radeon_encoder->enc_priv;
659 		if (!tmds)
660 			return 0;
661 
662 		if (val == 0) {
663 			if (rdev->is_atom_bios)
664 				ret = radeon_atombios_get_tmds_info(radeon_encoder, tmds);
665 			else
666 				ret = radeon_legacy_get_tmds_info_from_combios(radeon_encoder, tmds);
667 		}
668 		if (val == 1 || !ret)
669 			radeon_legacy_get_tmds_info_from_table(radeon_encoder, tmds);
670 
671 		radeon_property_change_mode(&radeon_encoder->base);
672 	}
673 
674 	if (property == dev->mode_config.scaling_mode_property) {
675 		enum radeon_rmx_type rmx_type;
676 
677 		if (connector->encoder)
678 			radeon_encoder = to_radeon_encoder(connector->encoder);
679 		else {
680 			const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
681 			radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
682 		}
683 
684 		switch (val) {
685 		default:
686 		case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
687 		case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
688 		case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
689 		case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
690 		}
691 		if (radeon_encoder->rmx_type == rmx_type)
692 			return 0;
693 
694 		if ((rmx_type != DRM_MODE_SCALE_NONE) &&
695 		    (radeon_encoder->native_mode.clock == 0))
696 			return 0;
697 
698 		radeon_encoder->rmx_type = rmx_type;
699 
700 		radeon_property_change_mode(&radeon_encoder->base);
701 	}
702 
703 	if (property == rdev->mode_info.output_csc_property) {
704 		if (connector->encoder)
705 			radeon_encoder = to_radeon_encoder(connector->encoder);
706 		else {
707 			const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
708 			radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
709 		}
710 
711 		if (radeon_encoder->output_csc == val)
712 			return 0;
713 
714 		radeon_encoder->output_csc = val;
715 
716 		if (connector->encoder && connector->encoder->crtc) {
717 			struct drm_crtc *crtc  = connector->encoder->crtc;
718 			struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
719 
720 			radeon_crtc->output_csc = radeon_encoder->output_csc;
721 
722 			/*
723 			 * Our .gamma_set assumes the .gamma_store has been
724 			 * prefilled and don't care about its arguments.
725 			 */
726 			crtc->funcs->gamma_set(crtc, NULL, NULL, NULL, 0, NULL);
727 		}
728 	}
729 
730 	return 0;
731 }
732 
733 static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
734 					  struct drm_connector *connector)
735 {
736 	struct radeon_encoder *radeon_encoder =	to_radeon_encoder(encoder);
737 	struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
738 	struct drm_display_mode *t, *mode;
739 
740 	/* If the EDID preferred mode doesn't match the native mode, use it */
741 	list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
742 		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
743 			if (mode->hdisplay != native_mode->hdisplay ||
744 			    mode->vdisplay != native_mode->vdisplay)
745 				drm_mode_copy(native_mode, mode);
746 		}
747 	}
748 
749 	/* Try to get native mode details from EDID if necessary */
750 	if (!native_mode->clock) {
751 		list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
752 			if (mode->hdisplay == native_mode->hdisplay &&
753 			    mode->vdisplay == native_mode->vdisplay) {
754 				drm_mode_copy(native_mode, mode);
755 				drm_mode_set_crtcinfo(native_mode, CRTC_INTERLACE_HALVE_V);
756 				DRM_DEBUG_KMS("Determined LVDS native mode details from EDID\n");
757 				break;
758 			}
759 		}
760 	}
761 
762 	if (!native_mode->clock) {
763 		DRM_DEBUG_KMS("No LVDS native mode details, disabling RMX\n");
764 		radeon_encoder->rmx_type = RMX_OFF;
765 	}
766 }
767 
768 static int radeon_lvds_get_modes(struct drm_connector *connector)
769 {
770 	struct drm_encoder *encoder;
771 	int ret = 0;
772 	struct drm_display_mode *mode;
773 
774 	radeon_connector_get_edid(connector);
775 	ret = radeon_ddc_get_modes(connector);
776 	if (ret > 0) {
777 		encoder = radeon_best_single_encoder(connector);
778 		if (encoder) {
779 			radeon_fixup_lvds_native_mode(encoder, connector);
780 			/* add scaled modes */
781 			radeon_add_common_modes(encoder, connector);
782 		}
783 		return ret;
784 	}
785 
786 	encoder = radeon_best_single_encoder(connector);
787 	if (!encoder)
788 		return 0;
789 
790 	/* we have no EDID modes */
791 	mode = radeon_fp_native_mode(encoder);
792 	if (mode) {
793 		ret = 1;
794 		drm_mode_probed_add(connector, mode);
795 		/* add the width/height from vbios tables if available */
796 		connector->display_info.width_mm = mode->width_mm;
797 		connector->display_info.height_mm = mode->height_mm;
798 		/* add scaled modes */
799 		radeon_add_common_modes(encoder, connector);
800 	}
801 
802 	return ret;
803 }
804 
805 static enum drm_mode_status radeon_lvds_mode_valid(struct drm_connector *connector,
806 				  struct drm_display_mode *mode)
807 {
808 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
809 
810 	if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
811 		return MODE_PANEL;
812 
813 	if (encoder) {
814 		struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
815 		struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
816 
817 		/* AVIVO hardware supports downscaling modes larger than the panel
818 		 * to the panel size, but I'm not sure this is desirable.
819 		 */
820 		if ((mode->hdisplay > native_mode->hdisplay) ||
821 		    (mode->vdisplay > native_mode->vdisplay))
822 			return MODE_PANEL;
823 
824 		/* if scaling is disabled, block non-native modes */
825 		if (radeon_encoder->rmx_type == RMX_OFF) {
826 			if ((mode->hdisplay != native_mode->hdisplay) ||
827 			    (mode->vdisplay != native_mode->vdisplay))
828 				return MODE_PANEL;
829 		}
830 	}
831 
832 	return MODE_OK;
833 }
834 
835 static enum drm_connector_status
836 radeon_lvds_detect(struct drm_connector *connector, bool force)
837 {
838 	struct drm_device *dev = connector->dev;
839 	struct radeon_device *rdev = dev->dev_private;
840 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
841 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
842 	enum drm_connector_status ret = connector_status_disconnected;
843 	int r;
844 
845 	if (!drm_kms_helper_is_poll_worker()) {
846 		r = pm_runtime_get_sync(connector->dev->dev);
847 		if (r < 0) {
848 			pm_runtime_put_autosuspend(connector->dev->dev);
849 			return connector_status_disconnected;
850 		}
851 	}
852 
853 	if (encoder) {
854 		struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
855 		struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
856 
857 		/* check if panel is valid */
858 		if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
859 			ret = connector_status_connected;
860 		/* don't fetch the edid from the vbios if ddc fails and runpm is
861 		 * enabled so we report disconnected.
862 		 */
863 		if ((rdev->flags & RADEON_IS_PX) && (radeon_runtime_pm != 0))
864 			ret = connector_status_disconnected;
865 	}
866 
867 	/* check for edid as well */
868 	radeon_connector_get_edid(connector);
869 	if (radeon_connector->edid)
870 		ret = connector_status_connected;
871 	/* check acpi lid status ??? */
872 
873 	radeon_connector_update_scratch_regs(connector, ret);
874 
875 	if (!drm_kms_helper_is_poll_worker()) {
876 		pm_runtime_mark_last_busy(connector->dev->dev);
877 		pm_runtime_put_autosuspend(connector->dev->dev);
878 	}
879 
880 	return ret;
881 }
882 
883 static void radeon_connector_unregister(struct drm_connector *connector)
884 {
885 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
886 
887 	if (radeon_connector->ddc_bus && radeon_connector->ddc_bus->has_aux) {
888 		drm_dp_aux_unregister(&radeon_connector->ddc_bus->aux);
889 		radeon_connector->ddc_bus->has_aux = false;
890 	}
891 }
892 
893 static void radeon_connector_destroy(struct drm_connector *connector)
894 {
895 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
896 
897 	radeon_connector_free_edid(connector);
898 	kfree(radeon_connector->con_priv);
899 	drm_connector_unregister(connector);
900 	drm_connector_cleanup(connector);
901 	kfree(connector);
902 }
903 
904 static int radeon_lvds_set_property(struct drm_connector *connector,
905 				    struct drm_property *property,
906 				    uint64_t value)
907 {
908 	struct drm_device *dev = connector->dev;
909 	struct radeon_encoder *radeon_encoder;
910 	enum radeon_rmx_type rmx_type;
911 
912 	DRM_DEBUG_KMS("\n");
913 	if (property != dev->mode_config.scaling_mode_property)
914 		return 0;
915 
916 	if (connector->encoder)
917 		radeon_encoder = to_radeon_encoder(connector->encoder);
918 	else {
919 		const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
920 		radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
921 	}
922 
923 	switch (value) {
924 	case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
925 	case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
926 	case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
927 	default:
928 	case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
929 	}
930 	if (radeon_encoder->rmx_type == rmx_type)
931 		return 0;
932 
933 	radeon_encoder->rmx_type = rmx_type;
934 
935 	radeon_property_change_mode(&radeon_encoder->base);
936 	return 0;
937 }
938 
939 
940 static const struct drm_connector_helper_funcs radeon_lvds_connector_helper_funcs = {
941 	.get_modes = radeon_lvds_get_modes,
942 	.mode_valid = radeon_lvds_mode_valid,
943 	.best_encoder = radeon_best_single_encoder,
944 };
945 
946 static const struct drm_connector_funcs radeon_lvds_connector_funcs = {
947 	.dpms = drm_helper_connector_dpms,
948 	.detect = radeon_lvds_detect,
949 	.fill_modes = drm_helper_probe_single_connector_modes,
950 	.early_unregister = radeon_connector_unregister,
951 	.destroy = radeon_connector_destroy,
952 	.set_property = radeon_lvds_set_property,
953 };
954 
955 static int radeon_vga_get_modes(struct drm_connector *connector)
956 {
957 	int ret;
958 
959 	radeon_connector_get_edid(connector);
960 	ret = radeon_ddc_get_modes(connector);
961 
962 	radeon_get_native_mode(connector);
963 
964 	return ret;
965 }
966 
967 static enum drm_mode_status radeon_vga_mode_valid(struct drm_connector *connector,
968 				  struct drm_display_mode *mode)
969 {
970 	struct drm_device *dev = connector->dev;
971 	struct radeon_device *rdev = dev->dev_private;
972 
973 	/* XXX check mode bandwidth */
974 
975 	if ((mode->clock / 10) > rdev->clock.max_pixel_clock)
976 		return MODE_CLOCK_HIGH;
977 
978 	return MODE_OK;
979 }
980 
981 static enum drm_connector_status
982 radeon_vga_detect(struct drm_connector *connector, bool force)
983 {
984 	struct drm_device *dev = connector->dev;
985 	struct radeon_device *rdev = dev->dev_private;
986 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
987 	struct drm_encoder *encoder;
988 	const struct drm_encoder_helper_funcs *encoder_funcs;
989 	bool dret = false;
990 	enum drm_connector_status ret = connector_status_disconnected;
991 	int r;
992 
993 	if (!drm_kms_helper_is_poll_worker()) {
994 		r = pm_runtime_get_sync(connector->dev->dev);
995 		if (r < 0) {
996 			pm_runtime_put_autosuspend(connector->dev->dev);
997 			return connector_status_disconnected;
998 		}
999 	}
1000 
1001 	encoder = radeon_best_single_encoder(connector);
1002 	if (!encoder)
1003 		ret = connector_status_disconnected;
1004 
1005 	if (radeon_connector->ddc_bus)
1006 		dret = radeon_ddc_probe(radeon_connector, false);
1007 	if (dret) {
1008 		radeon_connector->detected_by_load = false;
1009 		radeon_connector_free_edid(connector);
1010 		radeon_connector_get_edid(connector);
1011 
1012 		if (!radeon_connector->edid) {
1013 			DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
1014 					connector->name);
1015 			ret = connector_status_connected;
1016 		} else {
1017 			radeon_connector->use_digital =
1018 				!!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
1019 
1020 			/* some oems have boards with separate digital and analog connectors
1021 			 * with a shared ddc line (often vga + hdmi)
1022 			 */
1023 			if (radeon_connector->use_digital && radeon_connector->shared_ddc) {
1024 				radeon_connector_free_edid(connector);
1025 				ret = connector_status_disconnected;
1026 			} else {
1027 				ret = connector_status_connected;
1028 			}
1029 		}
1030 	} else {
1031 
1032 		/* if we aren't forcing don't do destructive polling */
1033 		if (!force) {
1034 			/* only return the previous status if we last
1035 			 * detected a monitor via load.
1036 			 */
1037 			if (radeon_connector->detected_by_load)
1038 				ret = connector->status;
1039 			goto out;
1040 		}
1041 
1042 		if (radeon_connector->dac_load_detect && encoder) {
1043 			encoder_funcs = encoder->helper_private;
1044 			ret = encoder_funcs->detect(encoder, connector);
1045 			if (ret != connector_status_disconnected)
1046 				radeon_connector->detected_by_load = true;
1047 		}
1048 	}
1049 
1050 	if (ret == connector_status_connected)
1051 		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
1052 
1053 	/* RN50 and some RV100 asics in servers often have a hardcoded EDID in the
1054 	 * vbios to deal with KVMs. If we have one and are not able to detect a monitor
1055 	 * by other means, assume the CRT is connected and use that EDID.
1056 	 */
1057 	if ((!rdev->is_atom_bios) &&
1058 	    (ret == connector_status_disconnected) &&
1059 	    rdev->mode_info.bios_hardcoded_edid_size) {
1060 		ret = connector_status_connected;
1061 	}
1062 
1063 	radeon_connector_update_scratch_regs(connector, ret);
1064 
1065 out:
1066 	if (!drm_kms_helper_is_poll_worker()) {
1067 		pm_runtime_mark_last_busy(connector->dev->dev);
1068 		pm_runtime_put_autosuspend(connector->dev->dev);
1069 	}
1070 
1071 	return ret;
1072 }
1073 
1074 static const struct drm_connector_helper_funcs radeon_vga_connector_helper_funcs = {
1075 	.get_modes = radeon_vga_get_modes,
1076 	.mode_valid = radeon_vga_mode_valid,
1077 	.best_encoder = radeon_best_single_encoder,
1078 };
1079 
1080 static const struct drm_connector_funcs radeon_vga_connector_funcs = {
1081 	.dpms = drm_helper_connector_dpms,
1082 	.detect = radeon_vga_detect,
1083 	.fill_modes = drm_helper_probe_single_connector_modes,
1084 	.early_unregister = radeon_connector_unregister,
1085 	.destroy = radeon_connector_destroy,
1086 	.set_property = radeon_connector_set_property,
1087 };
1088 
1089 static int radeon_tv_get_modes(struct drm_connector *connector)
1090 {
1091 	struct drm_device *dev = connector->dev;
1092 	struct radeon_device *rdev = dev->dev_private;
1093 	struct drm_display_mode *tv_mode;
1094 	struct drm_encoder *encoder;
1095 
1096 	encoder = radeon_best_single_encoder(connector);
1097 	if (!encoder)
1098 		return 0;
1099 
1100 	/* avivo chips can scale any mode */
1101 	if (rdev->family >= CHIP_RS600)
1102 		/* add scaled modes */
1103 		radeon_add_common_modes(encoder, connector);
1104 	else {
1105 		/* only 800x600 is supported right now on pre-avivo chips */
1106 		tv_mode = drm_cvt_mode(dev, 800, 600, 60, false, false, false);
1107 		if (!tv_mode)
1108 			return 0;
1109 		tv_mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
1110 		drm_mode_probed_add(connector, tv_mode);
1111 	}
1112 	return 1;
1113 }
1114 
1115 static enum drm_mode_status radeon_tv_mode_valid(struct drm_connector *connector,
1116 				struct drm_display_mode *mode)
1117 {
1118 	if ((mode->hdisplay > 1024) || (mode->vdisplay > 768))
1119 		return MODE_CLOCK_RANGE;
1120 	return MODE_OK;
1121 }
1122 
1123 static enum drm_connector_status
1124 radeon_tv_detect(struct drm_connector *connector, bool force)
1125 {
1126 	struct drm_encoder *encoder;
1127 	const struct drm_encoder_helper_funcs *encoder_funcs;
1128 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1129 	enum drm_connector_status ret = connector_status_disconnected;
1130 	int r;
1131 
1132 	if (!radeon_connector->dac_load_detect)
1133 		return ret;
1134 
1135 	if (!drm_kms_helper_is_poll_worker()) {
1136 		r = pm_runtime_get_sync(connector->dev->dev);
1137 		if (r < 0) {
1138 			pm_runtime_put_autosuspend(connector->dev->dev);
1139 			return connector_status_disconnected;
1140 		}
1141 	}
1142 
1143 	encoder = radeon_best_single_encoder(connector);
1144 	if (!encoder)
1145 		ret = connector_status_disconnected;
1146 	else {
1147 		encoder_funcs = encoder->helper_private;
1148 		ret = encoder_funcs->detect(encoder, connector);
1149 	}
1150 	if (ret == connector_status_connected)
1151 		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, false);
1152 	radeon_connector_update_scratch_regs(connector, ret);
1153 
1154 	if (!drm_kms_helper_is_poll_worker()) {
1155 		pm_runtime_mark_last_busy(connector->dev->dev);
1156 		pm_runtime_put_autosuspend(connector->dev->dev);
1157 	}
1158 
1159 	return ret;
1160 }
1161 
1162 static const struct drm_connector_helper_funcs radeon_tv_connector_helper_funcs = {
1163 	.get_modes = radeon_tv_get_modes,
1164 	.mode_valid = radeon_tv_mode_valid,
1165 	.best_encoder = radeon_best_single_encoder,
1166 };
1167 
1168 static const struct drm_connector_funcs radeon_tv_connector_funcs = {
1169 	.dpms = drm_helper_connector_dpms,
1170 	.detect = radeon_tv_detect,
1171 	.fill_modes = drm_helper_probe_single_connector_modes,
1172 	.early_unregister = radeon_connector_unregister,
1173 	.destroy = radeon_connector_destroy,
1174 	.set_property = radeon_connector_set_property,
1175 };
1176 
1177 static bool radeon_check_hpd_status_unchanged(struct drm_connector *connector)
1178 {
1179 	struct drm_device *dev = connector->dev;
1180 	struct radeon_device *rdev = dev->dev_private;
1181 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1182 	enum drm_connector_status status;
1183 
1184 	/* We only trust HPD on R600 and newer ASICS. */
1185 	if (rdev->family >= CHIP_R600
1186 	  && radeon_connector->hpd.hpd != RADEON_HPD_NONE) {
1187 		if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
1188 			status = connector_status_connected;
1189 		else
1190 			status = connector_status_disconnected;
1191 		if (connector->status == status)
1192 			return true;
1193 	}
1194 
1195 	return false;
1196 }
1197 
1198 /*
1199  * DVI is complicated
1200  * Do a DDC probe, if DDC probe passes, get the full EDID so
1201  * we can do analog/digital monitor detection at this point.
1202  * If the monitor is an analog monitor or we got no DDC,
1203  * we need to find the DAC encoder object for this connector.
1204  * If we got no DDC, we do load detection on the DAC encoder object.
1205  * If we got analog DDC or load detection passes on the DAC encoder
1206  * we have to check if this analog encoder is shared with anyone else (TV)
1207  * if its shared we have to set the other connector to disconnected.
1208  */
1209 static enum drm_connector_status
1210 radeon_dvi_detect(struct drm_connector *connector, bool force)
1211 {
1212 	struct drm_device *dev = connector->dev;
1213 	struct radeon_device *rdev = dev->dev_private;
1214 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1215 	struct drm_encoder *encoder = NULL;
1216 	const struct drm_encoder_helper_funcs *encoder_funcs;
1217 	int r;
1218 	enum drm_connector_status ret = connector_status_disconnected;
1219 	bool dret = false, broken_edid = false;
1220 
1221 	if (!drm_kms_helper_is_poll_worker()) {
1222 		r = pm_runtime_get_sync(connector->dev->dev);
1223 		if (r < 0) {
1224 			pm_runtime_put_autosuspend(connector->dev->dev);
1225 			return connector_status_disconnected;
1226 		}
1227 	}
1228 
1229 	if (radeon_connector->detected_hpd_without_ddc) {
1230 		force = true;
1231 		radeon_connector->detected_hpd_without_ddc = false;
1232 	}
1233 
1234 	if (!force && radeon_check_hpd_status_unchanged(connector)) {
1235 		ret = connector->status;
1236 		goto exit;
1237 	}
1238 
1239 	if (radeon_connector->ddc_bus) {
1240 		dret = radeon_ddc_probe(radeon_connector, false);
1241 
1242 		/* Sometimes the pins required for the DDC probe on DVI
1243 		 * connectors don't make contact at the same time that the ones
1244 		 * for HPD do. If the DDC probe fails even though we had an HPD
1245 		 * signal, try again later */
1246 		if (!dret && !force &&
1247 		    connector->status != connector_status_connected) {
1248 			DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n");
1249 			radeon_connector->detected_hpd_without_ddc = true;
1250 			schedule_delayed_work(&rdev->hotplug_work,
1251 					      msecs_to_jiffies(1000));
1252 			goto exit;
1253 		}
1254 	}
1255 
1256 	if (dret && radeon_connector->hpd.hpd != RADEON_HPD_NONE &&
1257 	    !radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) &&
1258 	    connector->connector_type == DRM_MODE_CONNECTOR_HDMIA) {
1259 		DRM_DEBUG_KMS("EDID is readable when HPD disconnected\n");
1260 		schedule_delayed_work(&rdev->hotplug_work, msecs_to_jiffies(1000));
1261 		ret = connector_status_disconnected;
1262 		goto exit;
1263 	}
1264 
1265 	if (dret) {
1266 		radeon_connector->detected_by_load = false;
1267 		radeon_connector_free_edid(connector);
1268 		radeon_connector_get_edid(connector);
1269 
1270 		if (!radeon_connector->edid) {
1271 			DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
1272 					connector->name);
1273 			/* rs690 seems to have a problem with connectors not existing and always
1274 			 * return a block of 0's. If we see this just stop polling on this output */
1275 			if ((rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) &&
1276 			    radeon_connector->base.null_edid_counter) {
1277 				ret = connector_status_disconnected;
1278 				DRM_ERROR("%s: detected RS690 floating bus bug, stopping ddc detect\n",
1279 					  connector->name);
1280 				radeon_connector->ddc_bus = NULL;
1281 			} else {
1282 				ret = connector_status_connected;
1283 				broken_edid = true; /* defer use_digital to later */
1284 			}
1285 		} else {
1286 			radeon_connector->use_digital =
1287 				!!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
1288 
1289 			/* some oems have boards with separate digital and analog connectors
1290 			 * with a shared ddc line (often vga + hdmi)
1291 			 */
1292 			if ((!radeon_connector->use_digital) && radeon_connector->shared_ddc) {
1293 				radeon_connector_free_edid(connector);
1294 				ret = connector_status_disconnected;
1295 			} else {
1296 				ret = connector_status_connected;
1297 			}
1298 			/* This gets complicated.  We have boards with VGA + HDMI with a
1299 			 * shared DDC line and we have boards with DVI-D + HDMI with a shared
1300 			 * DDC line.  The latter is more complex because with DVI<->HDMI adapters
1301 			 * you don't really know what's connected to which port as both are digital.
1302 			 */
1303 			if (radeon_connector->shared_ddc && (ret == connector_status_connected)) {
1304 				struct drm_connector *list_connector;
1305 				struct radeon_connector *list_radeon_connector;
1306 				list_for_each_entry(list_connector, &dev->mode_config.connector_list, head) {
1307 					if (connector == list_connector)
1308 						continue;
1309 					list_radeon_connector = to_radeon_connector(list_connector);
1310 					if (list_radeon_connector->shared_ddc &&
1311 					    (list_radeon_connector->ddc_bus->rec.i2c_id ==
1312 					     radeon_connector->ddc_bus->rec.i2c_id)) {
1313 						/* cases where both connectors are digital */
1314 						if (list_connector->connector_type != DRM_MODE_CONNECTOR_VGA) {
1315 							/* hpd is our only option in this case */
1316 							if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
1317 								radeon_connector_free_edid(connector);
1318 								ret = connector_status_disconnected;
1319 							}
1320 						}
1321 					}
1322 				}
1323 			}
1324 		}
1325 	}
1326 
1327 	if ((ret == connector_status_connected) && (radeon_connector->use_digital == true))
1328 		goto out;
1329 
1330 	/* DVI-D and HDMI-A are digital only */
1331 	if ((connector->connector_type == DRM_MODE_CONNECTOR_DVID) ||
1332 	    (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA))
1333 		goto out;
1334 
1335 	/* if we aren't forcing don't do destructive polling */
1336 	if (!force) {
1337 		/* only return the previous status if we last
1338 		 * detected a monitor via load.
1339 		 */
1340 		if (radeon_connector->detected_by_load)
1341 			ret = connector->status;
1342 		goto out;
1343 	}
1344 
1345 	/* find analog encoder */
1346 	if (radeon_connector->dac_load_detect) {
1347 		drm_connector_for_each_possible_encoder(connector, encoder) {
1348 			if (encoder->encoder_type != DRM_MODE_ENCODER_DAC &&
1349 			    encoder->encoder_type != DRM_MODE_ENCODER_TVDAC)
1350 				continue;
1351 
1352 			encoder_funcs = encoder->helper_private;
1353 			if (encoder_funcs->detect) {
1354 				if (!broken_edid) {
1355 					if (ret != connector_status_connected) {
1356 						/* deal with analog monitors without DDC */
1357 						ret = encoder_funcs->detect(encoder, connector);
1358 						if (ret == connector_status_connected) {
1359 							radeon_connector->use_digital = false;
1360 						}
1361 						if (ret != connector_status_disconnected)
1362 							radeon_connector->detected_by_load = true;
1363 					}
1364 				} else {
1365 					enum drm_connector_status lret;
1366 					/* assume digital unless load detected otherwise */
1367 					radeon_connector->use_digital = true;
1368 					lret = encoder_funcs->detect(encoder, connector);
1369 					DRM_DEBUG_KMS("load_detect %x returned: %x\n", encoder->encoder_type, lret);
1370 					if (lret == connector_status_connected)
1371 						radeon_connector->use_digital = false;
1372 				}
1373 				break;
1374 			}
1375 		}
1376 	}
1377 
1378 	if ((ret == connector_status_connected) && (radeon_connector->use_digital == false) &&
1379 	    encoder) {
1380 		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
1381 	}
1382 
1383 	/* RN50 and some RV100 asics in servers often have a hardcoded EDID in the
1384 	 * vbios to deal with KVMs. If we have one and are not able to detect a monitor
1385 	 * by other means, assume the DFP is connected and use that EDID.  In most
1386 	 * cases the DVI port is actually a virtual KVM port connected to the service
1387 	 * processor.
1388 	 */
1389 out:
1390 	if ((!rdev->is_atom_bios) &&
1391 	    (ret == connector_status_disconnected) &&
1392 	    rdev->mode_info.bios_hardcoded_edid_size) {
1393 		radeon_connector->use_digital = true;
1394 		ret = connector_status_connected;
1395 	}
1396 
1397 	/* updated in get modes as well since we need to know if it's analog or digital */
1398 	radeon_connector_update_scratch_regs(connector, ret);
1399 
1400 	if ((radeon_audio != 0) && radeon_connector->use_digital) {
1401 		const struct drm_connector_helper_funcs *connector_funcs =
1402 			connector->helper_private;
1403 
1404 		encoder = connector_funcs->best_encoder(connector);
1405 		if (encoder && (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)) {
1406 			radeon_connector_get_edid(connector);
1407 			radeon_audio_detect(connector, encoder, ret);
1408 		}
1409 	}
1410 
1411 exit:
1412 	if (!drm_kms_helper_is_poll_worker()) {
1413 		pm_runtime_mark_last_busy(connector->dev->dev);
1414 		pm_runtime_put_autosuspend(connector->dev->dev);
1415 	}
1416 
1417 	return ret;
1418 }
1419 
1420 /* okay need to be smart in here about which encoder to pick */
1421 static struct drm_encoder *radeon_dvi_encoder(struct drm_connector *connector)
1422 {
1423 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1424 	struct drm_encoder *encoder;
1425 
1426 	drm_connector_for_each_possible_encoder(connector, encoder) {
1427 		if (radeon_connector->use_digital == true) {
1428 			if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
1429 				return encoder;
1430 		} else {
1431 			if (encoder->encoder_type == DRM_MODE_ENCODER_DAC ||
1432 			    encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
1433 				return encoder;
1434 		}
1435 	}
1436 
1437 	/* see if we have a default encoder  TODO */
1438 
1439 	/* then check use digitial */
1440 	/* pick the first one */
1441 	drm_connector_for_each_possible_encoder(connector, encoder)
1442 		return encoder;
1443 
1444 	return NULL;
1445 }
1446 
1447 static void radeon_dvi_force(struct drm_connector *connector)
1448 {
1449 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1450 	if (connector->force == DRM_FORCE_ON)
1451 		radeon_connector->use_digital = false;
1452 	if (connector->force == DRM_FORCE_ON_DIGITAL)
1453 		radeon_connector->use_digital = true;
1454 }
1455 
1456 static enum drm_mode_status radeon_dvi_mode_valid(struct drm_connector *connector,
1457 				  struct drm_display_mode *mode)
1458 {
1459 	struct drm_device *dev = connector->dev;
1460 	struct radeon_device *rdev = dev->dev_private;
1461 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1462 
1463 	/* XXX check mode bandwidth */
1464 
1465 	/* clocks over 135 MHz have heat issues with DVI on RV100 */
1466 	if (radeon_connector->use_digital &&
1467 	    (rdev->family == CHIP_RV100) &&
1468 	    (mode->clock > 135000))
1469 		return MODE_CLOCK_HIGH;
1470 
1471 	if (radeon_connector->use_digital && (mode->clock > 165000)) {
1472 		if ((radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) ||
1473 		    (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
1474 		    (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
1475 			return MODE_OK;
1476 		else if (ASIC_IS_DCE6(rdev) && connector->display_info.is_hdmi) {
1477 			/* HDMI 1.3+ supports max clock of 340 Mhz */
1478 			if (mode->clock > 340000)
1479 				return MODE_CLOCK_HIGH;
1480 			else
1481 				return MODE_OK;
1482 		} else {
1483 			return MODE_CLOCK_HIGH;
1484 		}
1485 	}
1486 
1487 	/* check against the max pixel clock */
1488 	if ((mode->clock / 10) > rdev->clock.max_pixel_clock)
1489 		return MODE_CLOCK_HIGH;
1490 
1491 	return MODE_OK;
1492 }
1493 
1494 static const struct drm_connector_helper_funcs radeon_dvi_connector_helper_funcs = {
1495 	.get_modes = radeon_vga_get_modes,
1496 	.mode_valid = radeon_dvi_mode_valid,
1497 	.best_encoder = radeon_dvi_encoder,
1498 };
1499 
1500 static const struct drm_connector_funcs radeon_dvi_connector_funcs = {
1501 	.dpms = drm_helper_connector_dpms,
1502 	.detect = radeon_dvi_detect,
1503 	.fill_modes = drm_helper_probe_single_connector_modes,
1504 	.set_property = radeon_connector_set_property,
1505 	.early_unregister = radeon_connector_unregister,
1506 	.destroy = radeon_connector_destroy,
1507 	.force = radeon_dvi_force,
1508 };
1509 
1510 static int radeon_dp_get_modes(struct drm_connector *connector)
1511 {
1512 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1513 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1514 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1515 	int ret;
1516 
1517 	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1518 	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1519 		struct drm_display_mode *mode;
1520 
1521 		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
1522 			if (!radeon_dig_connector->edp_on)
1523 				atombios_set_edp_panel_power(connector,
1524 							     ATOM_TRANSMITTER_ACTION_POWER_ON);
1525 			radeon_connector_get_edid(connector);
1526 			ret = radeon_ddc_get_modes(connector);
1527 			if (!radeon_dig_connector->edp_on)
1528 				atombios_set_edp_panel_power(connector,
1529 							     ATOM_TRANSMITTER_ACTION_POWER_OFF);
1530 		} else {
1531 			/* need to setup ddc on the bridge */
1532 			if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1533 			    ENCODER_OBJECT_ID_NONE) {
1534 				if (encoder)
1535 					radeon_atom_ext_encoder_setup_ddc(encoder);
1536 			}
1537 			radeon_connector_get_edid(connector);
1538 			ret = radeon_ddc_get_modes(connector);
1539 		}
1540 
1541 		if (ret > 0) {
1542 			if (encoder) {
1543 				radeon_fixup_lvds_native_mode(encoder, connector);
1544 				/* add scaled modes */
1545 				radeon_add_common_modes(encoder, connector);
1546 			}
1547 			return ret;
1548 		}
1549 
1550 		if (!encoder)
1551 			return 0;
1552 
1553 		/* we have no EDID modes */
1554 		mode = radeon_fp_native_mode(encoder);
1555 		if (mode) {
1556 			ret = 1;
1557 			drm_mode_probed_add(connector, mode);
1558 			/* add the width/height from vbios tables if available */
1559 			connector->display_info.width_mm = mode->width_mm;
1560 			connector->display_info.height_mm = mode->height_mm;
1561 			/* add scaled modes */
1562 			radeon_add_common_modes(encoder, connector);
1563 		}
1564 	} else {
1565 		/* need to setup ddc on the bridge */
1566 		if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1567 			ENCODER_OBJECT_ID_NONE) {
1568 			if (encoder)
1569 				radeon_atom_ext_encoder_setup_ddc(encoder);
1570 		}
1571 		radeon_connector_get_edid(connector);
1572 		ret = radeon_ddc_get_modes(connector);
1573 
1574 		radeon_get_native_mode(connector);
1575 	}
1576 
1577 	return ret;
1578 }
1579 
1580 u16 radeon_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector)
1581 {
1582 	struct drm_encoder *encoder;
1583 	struct radeon_encoder *radeon_encoder;
1584 
1585 	drm_connector_for_each_possible_encoder(connector, encoder) {
1586 		radeon_encoder = to_radeon_encoder(encoder);
1587 
1588 		switch (radeon_encoder->encoder_id) {
1589 		case ENCODER_OBJECT_ID_TRAVIS:
1590 		case ENCODER_OBJECT_ID_NUTMEG:
1591 			return radeon_encoder->encoder_id;
1592 		default:
1593 			break;
1594 		}
1595 	}
1596 
1597 	return ENCODER_OBJECT_ID_NONE;
1598 }
1599 
1600 static bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector)
1601 {
1602 	struct drm_encoder *encoder;
1603 	struct radeon_encoder *radeon_encoder;
1604 	bool found = false;
1605 
1606 	drm_connector_for_each_possible_encoder(connector, encoder) {
1607 		radeon_encoder = to_radeon_encoder(encoder);
1608 		if (radeon_encoder->caps & ATOM_ENCODER_CAP_RECORD_HBR2)
1609 			found = true;
1610 	}
1611 
1612 	return found;
1613 }
1614 
1615 bool radeon_connector_is_dp12_capable(struct drm_connector *connector)
1616 {
1617 	struct drm_device *dev = connector->dev;
1618 	struct radeon_device *rdev = dev->dev_private;
1619 
1620 	if (ASIC_IS_DCE5(rdev) &&
1621 	    (rdev->clock.default_dispclk >= 53900) &&
1622 	    radeon_connector_encoder_is_hbr2(connector)) {
1623 		return true;
1624 	}
1625 
1626 	return false;
1627 }
1628 
1629 static enum drm_connector_status
1630 radeon_dp_detect(struct drm_connector *connector, bool force)
1631 {
1632 	struct drm_device *dev = connector->dev;
1633 	struct radeon_device *rdev = dev->dev_private;
1634 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1635 	enum drm_connector_status ret = connector_status_disconnected;
1636 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1637 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1638 	int r;
1639 
1640 	if (!drm_kms_helper_is_poll_worker()) {
1641 		r = pm_runtime_get_sync(connector->dev->dev);
1642 		if (r < 0) {
1643 			pm_runtime_put_autosuspend(connector->dev->dev);
1644 			return connector_status_disconnected;
1645 		}
1646 	}
1647 
1648 	if (!force && radeon_check_hpd_status_unchanged(connector)) {
1649 		ret = connector->status;
1650 		goto out;
1651 	}
1652 
1653 	radeon_connector_free_edid(connector);
1654 
1655 	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1656 	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1657 		if (encoder) {
1658 			struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1659 			struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
1660 
1661 			/* check if panel is valid */
1662 			if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
1663 				ret = connector_status_connected;
1664 			/* don't fetch the edid from the vbios if ddc fails and runpm is
1665 			 * enabled so we report disconnected.
1666 			 */
1667 			if ((rdev->flags & RADEON_IS_PX) && (radeon_runtime_pm != 0))
1668 				ret = connector_status_disconnected;
1669 		}
1670 		/* eDP is always DP */
1671 		radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1672 		if (!radeon_dig_connector->edp_on)
1673 			atombios_set_edp_panel_power(connector,
1674 						     ATOM_TRANSMITTER_ACTION_POWER_ON);
1675 		if (radeon_dp_getdpcd(radeon_connector))
1676 			ret = connector_status_connected;
1677 		if (!radeon_dig_connector->edp_on)
1678 			atombios_set_edp_panel_power(connector,
1679 						     ATOM_TRANSMITTER_ACTION_POWER_OFF);
1680 	} else if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1681 		   ENCODER_OBJECT_ID_NONE) {
1682 		/* DP bridges are always DP */
1683 		radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1684 		/* get the DPCD from the bridge */
1685 		radeon_dp_getdpcd(radeon_connector);
1686 
1687 		if (encoder) {
1688 			/* setup ddc on the bridge */
1689 			radeon_atom_ext_encoder_setup_ddc(encoder);
1690 			/* bridge chips are always aux */
1691 			if (radeon_ddc_probe(radeon_connector, true)) /* try DDC */
1692 				ret = connector_status_connected;
1693 			else if (radeon_connector->dac_load_detect) { /* try load detection */
1694 				const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
1695 				ret = encoder_funcs->detect(encoder, connector);
1696 			}
1697 		}
1698 	} else {
1699 		radeon_dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
1700 		if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
1701 			ret = connector_status_connected;
1702 			if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
1703 				radeon_dp_getdpcd(radeon_connector);
1704 		} else {
1705 			if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
1706 				if (radeon_dp_getdpcd(radeon_connector))
1707 					ret = connector_status_connected;
1708 			} else {
1709 				/* try non-aux ddc (DP to DVI/HDMI/etc. adapter) */
1710 				if (radeon_ddc_probe(radeon_connector, false))
1711 					ret = connector_status_connected;
1712 			}
1713 		}
1714 	}
1715 
1716 	radeon_connector_update_scratch_regs(connector, ret);
1717 
1718 	if ((radeon_audio != 0) && encoder) {
1719 		radeon_connector_get_edid(connector);
1720 		radeon_audio_detect(connector, encoder, ret);
1721 	}
1722 
1723 out:
1724 	if (!drm_kms_helper_is_poll_worker()) {
1725 		pm_runtime_mark_last_busy(connector->dev->dev);
1726 		pm_runtime_put_autosuspend(connector->dev->dev);
1727 	}
1728 
1729 	return ret;
1730 }
1731 
1732 static enum drm_mode_status radeon_dp_mode_valid(struct drm_connector *connector,
1733 				  struct drm_display_mode *mode)
1734 {
1735 	struct drm_device *dev = connector->dev;
1736 	struct radeon_device *rdev = dev->dev_private;
1737 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1738 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1739 
1740 	/* XXX check mode bandwidth */
1741 
1742 	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1743 	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1744 		struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1745 
1746 		if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
1747 			return MODE_PANEL;
1748 
1749 		if (encoder) {
1750 			struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1751 			struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
1752 
1753 			/* AVIVO hardware supports downscaling modes larger than the panel
1754 			 * to the panel size, but I'm not sure this is desirable.
1755 			 */
1756 			if ((mode->hdisplay > native_mode->hdisplay) ||
1757 			    (mode->vdisplay > native_mode->vdisplay))
1758 				return MODE_PANEL;
1759 
1760 			/* if scaling is disabled, block non-native modes */
1761 			if (radeon_encoder->rmx_type == RMX_OFF) {
1762 				if ((mode->hdisplay != native_mode->hdisplay) ||
1763 				    (mode->vdisplay != native_mode->vdisplay))
1764 					return MODE_PANEL;
1765 			}
1766 		}
1767 	} else {
1768 		if ((radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
1769 		    (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
1770 			return radeon_dp_mode_valid_helper(connector, mode);
1771 		} else {
1772 			if (ASIC_IS_DCE6(rdev) && connector->display_info.is_hdmi) {
1773 				/* HDMI 1.3+ supports max clock of 340 Mhz */
1774 				if (mode->clock > 340000)
1775 					return MODE_CLOCK_HIGH;
1776 			} else {
1777 				if (mode->clock > 165000)
1778 					return MODE_CLOCK_HIGH;
1779 			}
1780 		}
1781 	}
1782 
1783 	return MODE_OK;
1784 }
1785 
1786 static const struct drm_connector_helper_funcs radeon_dp_connector_helper_funcs = {
1787 	.get_modes = radeon_dp_get_modes,
1788 	.mode_valid = radeon_dp_mode_valid,
1789 	.best_encoder = radeon_dvi_encoder,
1790 };
1791 
1792 static const struct drm_connector_funcs radeon_dp_connector_funcs = {
1793 	.dpms = drm_helper_connector_dpms,
1794 	.detect = radeon_dp_detect,
1795 	.fill_modes = drm_helper_probe_single_connector_modes,
1796 	.set_property = radeon_connector_set_property,
1797 	.early_unregister = radeon_connector_unregister,
1798 	.destroy = radeon_connector_destroy,
1799 	.force = radeon_dvi_force,
1800 };
1801 
1802 static const struct drm_connector_funcs radeon_edp_connector_funcs = {
1803 	.dpms = drm_helper_connector_dpms,
1804 	.detect = radeon_dp_detect,
1805 	.fill_modes = drm_helper_probe_single_connector_modes,
1806 	.set_property = radeon_lvds_set_property,
1807 	.early_unregister = radeon_connector_unregister,
1808 	.destroy = radeon_connector_destroy,
1809 	.force = radeon_dvi_force,
1810 };
1811 
1812 static const struct drm_connector_funcs radeon_lvds_bridge_connector_funcs = {
1813 	.dpms = drm_helper_connector_dpms,
1814 	.detect = radeon_dp_detect,
1815 	.fill_modes = drm_helper_probe_single_connector_modes,
1816 	.set_property = radeon_lvds_set_property,
1817 	.early_unregister = radeon_connector_unregister,
1818 	.destroy = radeon_connector_destroy,
1819 	.force = radeon_dvi_force,
1820 };
1821 
1822 void
1823 radeon_add_atom_connector(struct drm_device *dev,
1824 			  uint32_t connector_id,
1825 			  uint32_t supported_device,
1826 			  int connector_type,
1827 			  struct radeon_i2c_bus_rec *i2c_bus,
1828 			  uint32_t igp_lane_info,
1829 			  uint16_t connector_object_id,
1830 			  struct radeon_hpd *hpd,
1831 			  struct radeon_router *router)
1832 {
1833 	struct radeon_device *rdev = dev->dev_private;
1834 	struct drm_connector *connector;
1835 	struct radeon_connector *radeon_connector;
1836 	struct radeon_connector_atom_dig *radeon_dig_connector;
1837 	struct drm_encoder *encoder;
1838 	struct radeon_encoder *radeon_encoder;
1839 	struct i2c_adapter *ddc = NULL;
1840 	uint32_t subpixel_order = SubPixelNone;
1841 	bool shared_ddc = false;
1842 	bool is_dp_bridge = false;
1843 	bool has_aux = false;
1844 
1845 	if (connector_type == DRM_MODE_CONNECTOR_Unknown)
1846 		return;
1847 
1848 	/* if the user selected tv=0 don't try and add the connector */
1849 	if (((connector_type == DRM_MODE_CONNECTOR_SVIDEO) ||
1850 	     (connector_type == DRM_MODE_CONNECTOR_Composite) ||
1851 	     (connector_type == DRM_MODE_CONNECTOR_9PinDIN)) &&
1852 	    (radeon_tv == 0))
1853 		return;
1854 
1855 	/* see if we already added it */
1856 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1857 		radeon_connector = to_radeon_connector(connector);
1858 		if (radeon_connector->connector_id == connector_id) {
1859 			radeon_connector->devices |= supported_device;
1860 			return;
1861 		}
1862 		if (radeon_connector->ddc_bus && i2c_bus->valid) {
1863 			if (radeon_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) {
1864 				radeon_connector->shared_ddc = true;
1865 				shared_ddc = true;
1866 			}
1867 			if (radeon_connector->router_bus && router->ddc_valid &&
1868 			    (radeon_connector->router.router_id == router->router_id)) {
1869 				radeon_connector->shared_ddc = false;
1870 				shared_ddc = false;
1871 			}
1872 		}
1873 	}
1874 
1875 	/* check if it's a dp bridge */
1876 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1877 		radeon_encoder = to_radeon_encoder(encoder);
1878 		if (radeon_encoder->devices & supported_device) {
1879 			switch (radeon_encoder->encoder_id) {
1880 			case ENCODER_OBJECT_ID_TRAVIS:
1881 			case ENCODER_OBJECT_ID_NUTMEG:
1882 				is_dp_bridge = true;
1883 				break;
1884 			default:
1885 				break;
1886 			}
1887 		}
1888 	}
1889 
1890 	radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
1891 	if (!radeon_connector)
1892 		return;
1893 
1894 	connector = &radeon_connector->base;
1895 
1896 	radeon_connector->connector_id = connector_id;
1897 	radeon_connector->devices = supported_device;
1898 	radeon_connector->shared_ddc = shared_ddc;
1899 	radeon_connector->connector_object_id = connector_object_id;
1900 	radeon_connector->hpd = *hpd;
1901 
1902 	radeon_connector->router = *router;
1903 	if (router->ddc_valid || router->cd_valid) {
1904 		radeon_connector->router_bus = radeon_i2c_lookup(rdev, &router->i2c_info);
1905 		if (!radeon_connector->router_bus)
1906 			DRM_ERROR("Failed to assign router i2c bus! Check dmesg for i2c errors.\n");
1907 	}
1908 
1909 	if (is_dp_bridge) {
1910 		radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1911 		if (!radeon_dig_connector)
1912 			goto failed;
1913 		radeon_dig_connector->igp_lane_info = igp_lane_info;
1914 		radeon_connector->con_priv = radeon_dig_connector;
1915 		if (i2c_bus->valid) {
1916 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1917 			if (radeon_connector->ddc_bus) {
1918 				has_aux = true;
1919 				ddc = &radeon_connector->ddc_bus->adapter;
1920 			} else {
1921 				DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1922 			}
1923 		}
1924 		switch (connector_type) {
1925 		case DRM_MODE_CONNECTOR_VGA:
1926 		case DRM_MODE_CONNECTOR_DVIA:
1927 		default:
1928 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
1929 						    &radeon_dp_connector_funcs,
1930 						    connector_type,
1931 						    ddc);
1932 			drm_connector_helper_add(&radeon_connector->base,
1933 						 &radeon_dp_connector_helper_funcs);
1934 			connector->interlace_allowed = true;
1935 			connector->doublescan_allowed = true;
1936 			radeon_connector->dac_load_detect = true;
1937 			drm_object_attach_property(&radeon_connector->base.base,
1938 						      rdev->mode_info.load_detect_property,
1939 						      1);
1940 			drm_object_attach_property(&radeon_connector->base.base,
1941 						   dev->mode_config.scaling_mode_property,
1942 						   DRM_MODE_SCALE_NONE);
1943 			if (ASIC_IS_DCE5(rdev))
1944 				drm_object_attach_property(&radeon_connector->base.base,
1945 							   rdev->mode_info.output_csc_property,
1946 							   RADEON_OUTPUT_CSC_BYPASS);
1947 			break;
1948 		case DRM_MODE_CONNECTOR_DVII:
1949 		case DRM_MODE_CONNECTOR_DVID:
1950 		case DRM_MODE_CONNECTOR_HDMIA:
1951 		case DRM_MODE_CONNECTOR_HDMIB:
1952 		case DRM_MODE_CONNECTOR_DisplayPort:
1953 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
1954 						    &radeon_dp_connector_funcs,
1955 						    connector_type,
1956 						    ddc);
1957 			drm_connector_helper_add(&radeon_connector->base,
1958 						 &radeon_dp_connector_helper_funcs);
1959 			drm_object_attach_property(&radeon_connector->base.base,
1960 						      rdev->mode_info.underscan_property,
1961 						      UNDERSCAN_OFF);
1962 			drm_object_attach_property(&radeon_connector->base.base,
1963 						      rdev->mode_info.underscan_hborder_property,
1964 						      0);
1965 			drm_object_attach_property(&radeon_connector->base.base,
1966 						      rdev->mode_info.underscan_vborder_property,
1967 						      0);
1968 
1969 			drm_object_attach_property(&radeon_connector->base.base,
1970 						      dev->mode_config.scaling_mode_property,
1971 						      DRM_MODE_SCALE_NONE);
1972 
1973 			drm_object_attach_property(&radeon_connector->base.base,
1974 						   rdev->mode_info.dither_property,
1975 						   RADEON_FMT_DITHER_DISABLE);
1976 
1977 			if (radeon_audio != 0) {
1978 				drm_object_attach_property(&radeon_connector->base.base,
1979 							   rdev->mode_info.audio_property,
1980 							   RADEON_AUDIO_AUTO);
1981 				radeon_connector->audio = RADEON_AUDIO_AUTO;
1982 			}
1983 			if (ASIC_IS_DCE5(rdev))
1984 				drm_object_attach_property(&radeon_connector->base.base,
1985 							   rdev->mode_info.output_csc_property,
1986 							   RADEON_OUTPUT_CSC_BYPASS);
1987 
1988 			subpixel_order = SubPixelHorizontalRGB;
1989 			connector->interlace_allowed = true;
1990 			if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
1991 				connector->doublescan_allowed = true;
1992 			else
1993 				connector->doublescan_allowed = false;
1994 			if (connector_type == DRM_MODE_CONNECTOR_DVII) {
1995 				radeon_connector->dac_load_detect = true;
1996 				drm_object_attach_property(&radeon_connector->base.base,
1997 							      rdev->mode_info.load_detect_property,
1998 							      1);
1999 			}
2000 			break;
2001 		case DRM_MODE_CONNECTOR_LVDS:
2002 		case DRM_MODE_CONNECTOR_eDP:
2003 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2004 						    &radeon_lvds_bridge_connector_funcs,
2005 						    connector_type,
2006 						    ddc);
2007 			drm_connector_helper_add(&radeon_connector->base,
2008 						 &radeon_dp_connector_helper_funcs);
2009 			drm_object_attach_property(&radeon_connector->base.base,
2010 						      dev->mode_config.scaling_mode_property,
2011 						      DRM_MODE_SCALE_FULLSCREEN);
2012 			subpixel_order = SubPixelHorizontalRGB;
2013 			connector->interlace_allowed = false;
2014 			connector->doublescan_allowed = false;
2015 			break;
2016 		}
2017 	} else {
2018 		switch (connector_type) {
2019 		case DRM_MODE_CONNECTOR_VGA:
2020 			if (i2c_bus->valid) {
2021 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2022 				if (!radeon_connector->ddc_bus)
2023 					DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2024 				else
2025 					ddc = &radeon_connector->ddc_bus->adapter;
2026 			}
2027 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2028 						    &radeon_vga_connector_funcs,
2029 						    connector_type,
2030 						    ddc);
2031 			drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
2032 			radeon_connector->dac_load_detect = true;
2033 			drm_object_attach_property(&radeon_connector->base.base,
2034 						      rdev->mode_info.load_detect_property,
2035 						      1);
2036 			if (ASIC_IS_AVIVO(rdev))
2037 				drm_object_attach_property(&radeon_connector->base.base,
2038 							   dev->mode_config.scaling_mode_property,
2039 							   DRM_MODE_SCALE_NONE);
2040 			if (ASIC_IS_DCE5(rdev))
2041 				drm_object_attach_property(&radeon_connector->base.base,
2042 							   rdev->mode_info.output_csc_property,
2043 							   RADEON_OUTPUT_CSC_BYPASS);
2044 			/* no HPD on analog connectors */
2045 			radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2046 			connector->interlace_allowed = true;
2047 			connector->doublescan_allowed = true;
2048 			break;
2049 		case DRM_MODE_CONNECTOR_DVIA:
2050 			if (i2c_bus->valid) {
2051 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2052 				if (!radeon_connector->ddc_bus)
2053 					DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2054 				else
2055 					ddc = &radeon_connector->ddc_bus->adapter;
2056 			}
2057 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2058 						    &radeon_vga_connector_funcs,
2059 						    connector_type,
2060 						    ddc);
2061 			drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
2062 			radeon_connector->dac_load_detect = true;
2063 			drm_object_attach_property(&radeon_connector->base.base,
2064 						      rdev->mode_info.load_detect_property,
2065 						      1);
2066 			if (ASIC_IS_AVIVO(rdev))
2067 				drm_object_attach_property(&radeon_connector->base.base,
2068 							   dev->mode_config.scaling_mode_property,
2069 							   DRM_MODE_SCALE_NONE);
2070 			if (ASIC_IS_DCE5(rdev))
2071 				drm_object_attach_property(&radeon_connector->base.base,
2072 							   rdev->mode_info.output_csc_property,
2073 							   RADEON_OUTPUT_CSC_BYPASS);
2074 			/* no HPD on analog connectors */
2075 			radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2076 			connector->interlace_allowed = true;
2077 			connector->doublescan_allowed = true;
2078 			break;
2079 		case DRM_MODE_CONNECTOR_DVII:
2080 		case DRM_MODE_CONNECTOR_DVID:
2081 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2082 			if (!radeon_dig_connector)
2083 				goto failed;
2084 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2085 			radeon_connector->con_priv = radeon_dig_connector;
2086 			if (i2c_bus->valid) {
2087 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2088 				if (!radeon_connector->ddc_bus)
2089 					DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2090 				else
2091 					ddc = &radeon_connector->ddc_bus->adapter;
2092 			}
2093 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2094 						    &radeon_dvi_connector_funcs,
2095 						    connector_type,
2096 						    ddc);
2097 			drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
2098 			subpixel_order = SubPixelHorizontalRGB;
2099 			drm_object_attach_property(&radeon_connector->base.base,
2100 						      rdev->mode_info.coherent_mode_property,
2101 						      1);
2102 			if (ASIC_IS_AVIVO(rdev)) {
2103 				drm_object_attach_property(&radeon_connector->base.base,
2104 							      rdev->mode_info.underscan_property,
2105 							      UNDERSCAN_OFF);
2106 				drm_object_attach_property(&radeon_connector->base.base,
2107 							      rdev->mode_info.underscan_hborder_property,
2108 							      0);
2109 				drm_object_attach_property(&radeon_connector->base.base,
2110 							      rdev->mode_info.underscan_vborder_property,
2111 							      0);
2112 				drm_object_attach_property(&radeon_connector->base.base,
2113 							   rdev->mode_info.dither_property,
2114 							   RADEON_FMT_DITHER_DISABLE);
2115 				drm_object_attach_property(&radeon_connector->base.base,
2116 							   dev->mode_config.scaling_mode_property,
2117 							   DRM_MODE_SCALE_NONE);
2118 			}
2119 			if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
2120 				drm_object_attach_property(&radeon_connector->base.base,
2121 							   rdev->mode_info.audio_property,
2122 							   RADEON_AUDIO_AUTO);
2123 				radeon_connector->audio = RADEON_AUDIO_AUTO;
2124 			}
2125 			if (connector_type == DRM_MODE_CONNECTOR_DVII) {
2126 				radeon_connector->dac_load_detect = true;
2127 				drm_object_attach_property(&radeon_connector->base.base,
2128 							      rdev->mode_info.load_detect_property,
2129 							      1);
2130 			}
2131 			if (ASIC_IS_DCE5(rdev))
2132 				drm_object_attach_property(&radeon_connector->base.base,
2133 							   rdev->mode_info.output_csc_property,
2134 							   RADEON_OUTPUT_CSC_BYPASS);
2135 			connector->interlace_allowed = true;
2136 			if (connector_type == DRM_MODE_CONNECTOR_DVII)
2137 				connector->doublescan_allowed = true;
2138 			else
2139 				connector->doublescan_allowed = false;
2140 			break;
2141 		case DRM_MODE_CONNECTOR_HDMIA:
2142 		case DRM_MODE_CONNECTOR_HDMIB:
2143 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2144 			if (!radeon_dig_connector)
2145 				goto failed;
2146 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2147 			radeon_connector->con_priv = radeon_dig_connector;
2148 			if (i2c_bus->valid) {
2149 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2150 				if (!radeon_connector->ddc_bus)
2151 					DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2152 				else
2153 					ddc = &radeon_connector->ddc_bus->adapter;
2154 			}
2155 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2156 						    &radeon_dvi_connector_funcs,
2157 						    connector_type,
2158 						    ddc);
2159 			drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
2160 			drm_object_attach_property(&radeon_connector->base.base,
2161 						      rdev->mode_info.coherent_mode_property,
2162 						      1);
2163 			if (ASIC_IS_AVIVO(rdev)) {
2164 				drm_object_attach_property(&radeon_connector->base.base,
2165 							      rdev->mode_info.underscan_property,
2166 							      UNDERSCAN_OFF);
2167 				drm_object_attach_property(&radeon_connector->base.base,
2168 							      rdev->mode_info.underscan_hborder_property,
2169 							      0);
2170 				drm_object_attach_property(&radeon_connector->base.base,
2171 							      rdev->mode_info.underscan_vborder_property,
2172 							      0);
2173 				drm_object_attach_property(&radeon_connector->base.base,
2174 							   rdev->mode_info.dither_property,
2175 							   RADEON_FMT_DITHER_DISABLE);
2176 				drm_object_attach_property(&radeon_connector->base.base,
2177 							   dev->mode_config.scaling_mode_property,
2178 							   DRM_MODE_SCALE_NONE);
2179 			}
2180 			if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
2181 				drm_object_attach_property(&radeon_connector->base.base,
2182 							   rdev->mode_info.audio_property,
2183 							   RADEON_AUDIO_AUTO);
2184 				radeon_connector->audio = RADEON_AUDIO_AUTO;
2185 			}
2186 			if (ASIC_IS_DCE5(rdev))
2187 				drm_object_attach_property(&radeon_connector->base.base,
2188 							   rdev->mode_info.output_csc_property,
2189 							   RADEON_OUTPUT_CSC_BYPASS);
2190 			subpixel_order = SubPixelHorizontalRGB;
2191 			connector->interlace_allowed = true;
2192 			if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
2193 				connector->doublescan_allowed = true;
2194 			else
2195 				connector->doublescan_allowed = false;
2196 			break;
2197 		case DRM_MODE_CONNECTOR_DisplayPort:
2198 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2199 			if (!radeon_dig_connector)
2200 				goto failed;
2201 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2202 			radeon_connector->con_priv = radeon_dig_connector;
2203 			if (i2c_bus->valid) {
2204 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2205 				if (radeon_connector->ddc_bus) {
2206 					has_aux = true;
2207 					ddc = &radeon_connector->ddc_bus->adapter;
2208 				} else {
2209 					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2210 				}
2211 			}
2212 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2213 						    &radeon_dp_connector_funcs,
2214 						    connector_type,
2215 						    ddc);
2216 			drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
2217 			subpixel_order = SubPixelHorizontalRGB;
2218 			drm_object_attach_property(&radeon_connector->base.base,
2219 						      rdev->mode_info.coherent_mode_property,
2220 						      1);
2221 			if (ASIC_IS_AVIVO(rdev)) {
2222 				drm_object_attach_property(&radeon_connector->base.base,
2223 							      rdev->mode_info.underscan_property,
2224 							      UNDERSCAN_OFF);
2225 				drm_object_attach_property(&radeon_connector->base.base,
2226 							      rdev->mode_info.underscan_hborder_property,
2227 							      0);
2228 				drm_object_attach_property(&radeon_connector->base.base,
2229 							      rdev->mode_info.underscan_vborder_property,
2230 							      0);
2231 				drm_object_attach_property(&radeon_connector->base.base,
2232 							   rdev->mode_info.dither_property,
2233 							   RADEON_FMT_DITHER_DISABLE);
2234 				drm_object_attach_property(&radeon_connector->base.base,
2235 							   dev->mode_config.scaling_mode_property,
2236 							   DRM_MODE_SCALE_NONE);
2237 			}
2238 			if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
2239 				drm_object_attach_property(&radeon_connector->base.base,
2240 							   rdev->mode_info.audio_property,
2241 							   RADEON_AUDIO_AUTO);
2242 				radeon_connector->audio = RADEON_AUDIO_AUTO;
2243 			}
2244 			if (ASIC_IS_DCE5(rdev))
2245 				drm_object_attach_property(&radeon_connector->base.base,
2246 							   rdev->mode_info.output_csc_property,
2247 							   RADEON_OUTPUT_CSC_BYPASS);
2248 			connector->interlace_allowed = true;
2249 			/* in theory with a DP to VGA converter... */
2250 			connector->doublescan_allowed = false;
2251 			break;
2252 		case DRM_MODE_CONNECTOR_eDP:
2253 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2254 			if (!radeon_dig_connector)
2255 				goto failed;
2256 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2257 			radeon_connector->con_priv = radeon_dig_connector;
2258 			if (i2c_bus->valid) {
2259 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2260 				if (radeon_connector->ddc_bus) {
2261 					has_aux = true;
2262 					ddc = &radeon_connector->ddc_bus->adapter;
2263 				} else {
2264 					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2265 				}
2266 			}
2267 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2268 						    &radeon_edp_connector_funcs,
2269 						    connector_type,
2270 						    ddc);
2271 			drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
2272 			drm_object_attach_property(&radeon_connector->base.base,
2273 						      dev->mode_config.scaling_mode_property,
2274 						      DRM_MODE_SCALE_FULLSCREEN);
2275 			subpixel_order = SubPixelHorizontalRGB;
2276 			connector->interlace_allowed = false;
2277 			connector->doublescan_allowed = false;
2278 			break;
2279 		case DRM_MODE_CONNECTOR_SVIDEO:
2280 		case DRM_MODE_CONNECTOR_Composite:
2281 		case DRM_MODE_CONNECTOR_9PinDIN:
2282 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2283 						    &radeon_tv_connector_funcs,
2284 						    connector_type,
2285 						    ddc);
2286 			drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
2287 			radeon_connector->dac_load_detect = true;
2288 			drm_object_attach_property(&radeon_connector->base.base,
2289 						      rdev->mode_info.load_detect_property,
2290 						      1);
2291 			drm_object_attach_property(&radeon_connector->base.base,
2292 						      rdev->mode_info.tv_std_property,
2293 						      radeon_atombios_get_tv_info(rdev));
2294 			/* no HPD on analog connectors */
2295 			radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2296 			connector->interlace_allowed = false;
2297 			connector->doublescan_allowed = false;
2298 			break;
2299 		case DRM_MODE_CONNECTOR_LVDS:
2300 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2301 			if (!radeon_dig_connector)
2302 				goto failed;
2303 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2304 			radeon_connector->con_priv = radeon_dig_connector;
2305 			if (i2c_bus->valid) {
2306 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2307 				if (!radeon_connector->ddc_bus)
2308 					DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2309 				else
2310 					ddc = &radeon_connector->ddc_bus->adapter;
2311 			}
2312 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2313 						    &radeon_lvds_connector_funcs,
2314 						    connector_type,
2315 						    ddc);
2316 			drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
2317 			drm_object_attach_property(&radeon_connector->base.base,
2318 						      dev->mode_config.scaling_mode_property,
2319 						      DRM_MODE_SCALE_FULLSCREEN);
2320 			subpixel_order = SubPixelHorizontalRGB;
2321 			connector->interlace_allowed = false;
2322 			connector->doublescan_allowed = false;
2323 			break;
2324 		}
2325 	}
2326 
2327 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
2328 		if (i2c_bus->valid) {
2329 			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
2330 			                    DRM_CONNECTOR_POLL_DISCONNECT;
2331 		}
2332 	} else
2333 		connector->polled = DRM_CONNECTOR_POLL_HPD;
2334 
2335 	connector->display_info.subpixel_order = subpixel_order;
2336 	drm_connector_register(connector);
2337 
2338 	if (has_aux)
2339 		radeon_dp_aux_init(radeon_connector);
2340 
2341 	return;
2342 
2343 failed:
2344 	drm_connector_cleanup(connector);
2345 	kfree(connector);
2346 }
2347 
2348 void
2349 radeon_add_legacy_connector(struct drm_device *dev,
2350 			    uint32_t connector_id,
2351 			    uint32_t supported_device,
2352 			    int connector_type,
2353 			    struct radeon_i2c_bus_rec *i2c_bus,
2354 			    uint16_t connector_object_id,
2355 			    struct radeon_hpd *hpd)
2356 {
2357 	struct radeon_device *rdev = dev->dev_private;
2358 	struct drm_connector *connector;
2359 	struct radeon_connector *radeon_connector;
2360 	struct i2c_adapter *ddc = NULL;
2361 	uint32_t subpixel_order = SubPixelNone;
2362 
2363 	if (connector_type == DRM_MODE_CONNECTOR_Unknown)
2364 		return;
2365 
2366 	/* if the user selected tv=0 don't try and add the connector */
2367 	if (((connector_type == DRM_MODE_CONNECTOR_SVIDEO) ||
2368 	     (connector_type == DRM_MODE_CONNECTOR_Composite) ||
2369 	     (connector_type == DRM_MODE_CONNECTOR_9PinDIN)) &&
2370 	    (radeon_tv == 0))
2371 		return;
2372 
2373 	/* see if we already added it */
2374 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2375 		radeon_connector = to_radeon_connector(connector);
2376 		if (radeon_connector->connector_id == connector_id) {
2377 			radeon_connector->devices |= supported_device;
2378 			return;
2379 		}
2380 	}
2381 
2382 	radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
2383 	if (!radeon_connector)
2384 		return;
2385 
2386 	connector = &radeon_connector->base;
2387 
2388 	radeon_connector->connector_id = connector_id;
2389 	radeon_connector->devices = supported_device;
2390 	radeon_connector->connector_object_id = connector_object_id;
2391 	radeon_connector->hpd = *hpd;
2392 
2393 	switch (connector_type) {
2394 	case DRM_MODE_CONNECTOR_VGA:
2395 		if (i2c_bus->valid) {
2396 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2397 			if (!radeon_connector->ddc_bus)
2398 				DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2399 			else
2400 				ddc = &radeon_connector->ddc_bus->adapter;
2401 		}
2402 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2403 					    &radeon_vga_connector_funcs,
2404 					    connector_type,
2405 					    ddc);
2406 		drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
2407 		radeon_connector->dac_load_detect = true;
2408 		drm_object_attach_property(&radeon_connector->base.base,
2409 					      rdev->mode_info.load_detect_property,
2410 					      1);
2411 		/* no HPD on analog connectors */
2412 		radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2413 		connector->interlace_allowed = true;
2414 		connector->doublescan_allowed = true;
2415 		break;
2416 	case DRM_MODE_CONNECTOR_DVIA:
2417 		if (i2c_bus->valid) {
2418 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2419 			if (!radeon_connector->ddc_bus)
2420 				DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2421 			else
2422 				ddc = &radeon_connector->ddc_bus->adapter;
2423 		}
2424 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2425 					    &radeon_vga_connector_funcs,
2426 					    connector_type,
2427 					    ddc);
2428 		drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
2429 		radeon_connector->dac_load_detect = true;
2430 		drm_object_attach_property(&radeon_connector->base.base,
2431 					      rdev->mode_info.load_detect_property,
2432 					      1);
2433 		/* no HPD on analog connectors */
2434 		radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2435 		connector->interlace_allowed = true;
2436 		connector->doublescan_allowed = true;
2437 		break;
2438 	case DRM_MODE_CONNECTOR_DVII:
2439 	case DRM_MODE_CONNECTOR_DVID:
2440 		if (i2c_bus->valid) {
2441 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2442 			if (!radeon_connector->ddc_bus)
2443 				DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2444 			else
2445 				ddc = &radeon_connector->ddc_bus->adapter;
2446 		}
2447 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2448 					    &radeon_dvi_connector_funcs,
2449 					    connector_type,
2450 					    ddc);
2451 		drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
2452 		if (connector_type == DRM_MODE_CONNECTOR_DVII) {
2453 			radeon_connector->dac_load_detect = true;
2454 			drm_object_attach_property(&radeon_connector->base.base,
2455 						      rdev->mode_info.load_detect_property,
2456 						      1);
2457 		}
2458 		subpixel_order = SubPixelHorizontalRGB;
2459 		connector->interlace_allowed = true;
2460 		if (connector_type == DRM_MODE_CONNECTOR_DVII)
2461 			connector->doublescan_allowed = true;
2462 		else
2463 			connector->doublescan_allowed = false;
2464 		break;
2465 	case DRM_MODE_CONNECTOR_SVIDEO:
2466 	case DRM_MODE_CONNECTOR_Composite:
2467 	case DRM_MODE_CONNECTOR_9PinDIN:
2468 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2469 					    &radeon_tv_connector_funcs,
2470 					    connector_type,
2471 					    ddc);
2472 		drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
2473 		radeon_connector->dac_load_detect = true;
2474 		/* RS400,RC410,RS480 chipset seems to report a lot
2475 		 * of false positive on load detect, we haven't yet
2476 		 * found a way to make load detect reliable on those
2477 		 * chipset, thus just disable it for TV.
2478 		 */
2479 		if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480)
2480 			radeon_connector->dac_load_detect = false;
2481 		drm_object_attach_property(&radeon_connector->base.base,
2482 					      rdev->mode_info.load_detect_property,
2483 					      radeon_connector->dac_load_detect);
2484 		drm_object_attach_property(&radeon_connector->base.base,
2485 					      rdev->mode_info.tv_std_property,
2486 					      radeon_combios_get_tv_info(rdev));
2487 		/* no HPD on analog connectors */
2488 		radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2489 		connector->interlace_allowed = false;
2490 		connector->doublescan_allowed = false;
2491 		break;
2492 	case DRM_MODE_CONNECTOR_LVDS:
2493 		if (i2c_bus->valid) {
2494 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2495 			if (!radeon_connector->ddc_bus)
2496 				DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2497 			else
2498 				ddc = &radeon_connector->ddc_bus->adapter;
2499 		}
2500 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2501 					    &radeon_lvds_connector_funcs,
2502 					    connector_type,
2503 					    ddc);
2504 		drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
2505 		drm_object_attach_property(&radeon_connector->base.base,
2506 					      dev->mode_config.scaling_mode_property,
2507 					      DRM_MODE_SCALE_FULLSCREEN);
2508 		subpixel_order = SubPixelHorizontalRGB;
2509 		connector->interlace_allowed = false;
2510 		connector->doublescan_allowed = false;
2511 		break;
2512 	}
2513 
2514 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
2515 		if (i2c_bus->valid) {
2516 			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
2517 			                    DRM_CONNECTOR_POLL_DISCONNECT;
2518 		}
2519 	} else
2520 		connector->polled = DRM_CONNECTOR_POLL_HPD;
2521 
2522 	connector->display_info.subpixel_order = subpixel_order;
2523 	drm_connector_register(connector);
2524 }
2525