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/drm_edid.h>
28 #include <drm/drm_crtc_helper.h>
29 #include <drm/drm_fb_helper.h>
30 #include <drm/dp/drm_dp_mst_helper.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 static int radeon_dp_handle_hpd(struct drm_connector *connector)
41 {
42 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
43 	int ret;
44 
45 	ret = radeon_dp_mst_check_status(radeon_connector);
46 	if (ret == -EINVAL)
47 		return 1;
48 	return 0;
49 }
50 void radeon_connector_hotplug(struct drm_connector *connector)
51 {
52 	struct drm_device *dev = connector->dev;
53 	struct radeon_device *rdev = dev->dev_private;
54 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
55 
56 	if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
57 		struct radeon_connector_atom_dig *dig_connector =
58 			radeon_connector->con_priv;
59 
60 		if (radeon_connector->is_mst_connector)
61 			return;
62 		if (dig_connector->is_mst) {
63 			radeon_dp_handle_hpd(connector);
64 			return;
65 		}
66 	}
67 	/* bail if the connector does not have hpd pin, e.g.,
68 	 * VGA, TV, etc.
69 	 */
70 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE)
71 		return;
72 
73 	radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
74 
75 	/* if the connector is already off, don't turn it back on */
76 	/* FIXME: This access isn't protected by any locks. */
77 	if (connector->dpms != DRM_MODE_DPMS_ON)
78 		return;
79 
80 	/* just deal with DP (not eDP) here. */
81 	if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
82 		struct radeon_connector_atom_dig *dig_connector =
83 			radeon_connector->con_priv;
84 
85 		/* if existing sink type was not DP no need to retrain */
86 		if (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT)
87 			return;
88 
89 		/* first get sink type as it may be reset after (un)plug */
90 		dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
91 		/* don't do anything if sink is not display port, i.e.,
92 		 * passive dp->(dvi|hdmi) adaptor
93 		 */
94 		if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT &&
95 		    radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) &&
96 		    radeon_dp_needs_link_train(radeon_connector)) {
97 			/* Don't start link training before we have the DPCD */
98 			if (!radeon_dp_getdpcd(radeon_connector))
99 				return;
100 
101 			/* Turn the connector off and back on immediately, which
102 			 * will trigger link training
103 			 */
104 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
105 			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
106 		}
107 	}
108 }
109 
110 static void radeon_property_change_mode(struct drm_encoder *encoder)
111 {
112 	struct drm_crtc *crtc = encoder->crtc;
113 
114 	if (crtc && crtc->enabled) {
115 		drm_crtc_helper_set_mode(crtc, &crtc->mode,
116 					 crtc->x, crtc->y, crtc->primary->fb);
117 	}
118 }
119 
120 int radeon_get_monitor_bpc(struct drm_connector *connector)
121 {
122 	struct drm_device *dev = connector->dev;
123 	struct radeon_device *rdev = dev->dev_private;
124 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
125 	struct radeon_connector_atom_dig *dig_connector;
126 	int bpc = 8;
127 	int mode_clock, max_tmds_clock;
128 
129 	switch (connector->connector_type) {
130 	case DRM_MODE_CONNECTOR_DVII:
131 	case DRM_MODE_CONNECTOR_HDMIB:
132 		if (radeon_connector->use_digital) {
133 			if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
134 				if (connector->display_info.bpc)
135 					bpc = connector->display_info.bpc;
136 			}
137 		}
138 		break;
139 	case DRM_MODE_CONNECTOR_DVID:
140 	case DRM_MODE_CONNECTOR_HDMIA:
141 		if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
142 			if (connector->display_info.bpc)
143 				bpc = connector->display_info.bpc;
144 		}
145 		break;
146 	case DRM_MODE_CONNECTOR_DisplayPort:
147 		dig_connector = radeon_connector->con_priv;
148 		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
149 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) ||
150 		    drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
151 			if (connector->display_info.bpc)
152 				bpc = connector->display_info.bpc;
153 		}
154 		break;
155 	case DRM_MODE_CONNECTOR_eDP:
156 	case DRM_MODE_CONNECTOR_LVDS:
157 		if (connector->display_info.bpc)
158 			bpc = connector->display_info.bpc;
159 		else if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
160 			const struct drm_connector_helper_funcs *connector_funcs =
161 				connector->helper_private;
162 			struct drm_encoder *encoder = connector_funcs->best_encoder(connector);
163 			struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
164 			struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
165 
166 			if (dig->lcd_misc & ATOM_PANEL_MISC_V13_6BIT_PER_COLOR)
167 				bpc = 6;
168 			else if (dig->lcd_misc & ATOM_PANEL_MISC_V13_8BIT_PER_COLOR)
169 				bpc = 8;
170 		}
171 		break;
172 	}
173 
174 	if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
175 		/* hdmi deep color only implemented on DCE4+ */
176 		if ((bpc > 8) && !ASIC_IS_DCE4(rdev)) {
177 			DRM_DEBUG("%s: HDMI deep color %d bpc unsupported. Using 8 bpc.\n",
178 					  connector->name, bpc);
179 			bpc = 8;
180 		}
181 
182 		/*
183 		 * Pre DCE-8 hw can't handle > 12 bpc, and more than 12 bpc doesn't make
184 		 * much sense without support for > 12 bpc framebuffers. RGB 4:4:4 at
185 		 * 12 bpc is always supported on hdmi deep color sinks, as this is
186 		 * required by the HDMI-1.3 spec. Clamp to a safe 12 bpc maximum.
187 		 */
188 		if (bpc > 12) {
189 			DRM_DEBUG("%s: HDMI deep color %d bpc unsupported. Using 12 bpc.\n",
190 					  connector->name, bpc);
191 			bpc = 12;
192 		}
193 
194 		/* Any defined maximum tmds clock limit we must not exceed? */
195 		if (connector->display_info.max_tmds_clock > 0) {
196 			/* mode_clock is clock in kHz for mode to be modeset on this connector */
197 			mode_clock = radeon_connector->pixelclock_for_modeset;
198 
199 			/* Maximum allowable input clock in kHz */
200 			max_tmds_clock = connector->display_info.max_tmds_clock;
201 
202 			DRM_DEBUG("%s: hdmi mode dotclock %d kHz, max tmds input clock %d kHz.\n",
203 					  connector->name, mode_clock, max_tmds_clock);
204 
205 			/* Check if bpc is within clock limit. Try to degrade gracefully otherwise */
206 			if ((bpc == 12) && (mode_clock * 3/2 > max_tmds_clock)) {
207 				if ((connector->display_info.edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30) &&
208 					(mode_clock * 5/4 <= max_tmds_clock))
209 					bpc = 10;
210 				else
211 					bpc = 8;
212 
213 				DRM_DEBUG("%s: HDMI deep color 12 bpc exceeds max tmds clock. Using %d bpc.\n",
214 						  connector->name, bpc);
215 			}
216 
217 			if ((bpc == 10) && (mode_clock * 5/4 > max_tmds_clock)) {
218 				bpc = 8;
219 				DRM_DEBUG("%s: HDMI deep color 10 bpc exceeds max tmds clock. Using %d bpc.\n",
220 						  connector->name, bpc);
221 			}
222 		}
223 		else if (bpc > 8) {
224 			/* max_tmds_clock missing, but hdmi spec mandates it for deep color. */
225 			DRM_DEBUG("%s: Required max tmds clock for HDMI deep color missing. Using 8 bpc.\n",
226 					  connector->name);
227 			bpc = 8;
228 		}
229 	}
230 
231 	if ((radeon_deep_color == 0) && (bpc > 8)) {
232 		DRM_DEBUG("%s: Deep color disabled. Set radeon module param deep_color=1 to enable.\n",
233 				  connector->name);
234 		bpc = 8;
235 	}
236 
237 	DRM_DEBUG("%s: Display bpc=%d, returned bpc=%d\n",
238 			  connector->name, connector->display_info.bpc, bpc);
239 
240 	return bpc;
241 }
242 
243 static void
244 radeon_connector_update_scratch_regs(struct drm_connector *connector, enum drm_connector_status status)
245 {
246 	struct drm_device *dev = connector->dev;
247 	struct radeon_device *rdev = dev->dev_private;
248 	struct drm_encoder *best_encoder;
249 	struct drm_encoder *encoder;
250 	const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
251 	bool connected;
252 
253 	best_encoder = connector_funcs->best_encoder(connector);
254 
255 	drm_connector_for_each_possible_encoder(connector, encoder) {
256 		if ((encoder == best_encoder) && (status == connector_status_connected))
257 			connected = true;
258 		else
259 			connected = false;
260 
261 		if (rdev->is_atom_bios)
262 			radeon_atombios_connected_scratch_regs(connector, encoder, connected);
263 		else
264 			radeon_combios_connected_scratch_regs(connector, encoder, connected);
265 	}
266 }
267 
268 static struct drm_encoder *radeon_find_encoder(struct drm_connector *connector, int encoder_type)
269 {
270 	struct drm_encoder *encoder;
271 
272 	drm_connector_for_each_possible_encoder(connector, encoder) {
273 		if (encoder->encoder_type == encoder_type)
274 			return encoder;
275 	}
276 
277 	return NULL;
278 }
279 
280 struct edid *radeon_connector_edid(struct drm_connector *connector)
281 {
282 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
283 	struct drm_property_blob *edid_blob = connector->edid_blob_ptr;
284 
285 	if (radeon_connector->edid) {
286 		return radeon_connector->edid;
287 	} else if (edid_blob) {
288 		struct edid *edid = kmemdup(edid_blob->data, edid_blob->length, GFP_KERNEL);
289 		if (edid)
290 			radeon_connector->edid = edid;
291 	}
292 	return radeon_connector->edid;
293 }
294 
295 static void radeon_connector_get_edid(struct drm_connector *connector)
296 {
297 	struct drm_device *dev = connector->dev;
298 	struct radeon_device *rdev = dev->dev_private;
299 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
300 
301 	if (radeon_connector->edid)
302 		return;
303 
304 	/* on hw with routers, select right port */
305 	if (radeon_connector->router.ddc_valid)
306 		radeon_router_select_ddc_port(radeon_connector);
307 
308 	if ((radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
309 	     ENCODER_OBJECT_ID_NONE) &&
310 	    radeon_connector->ddc_bus->has_aux) {
311 		radeon_connector->edid = drm_get_edid(connector,
312 						      &radeon_connector->ddc_bus->aux.ddc);
313 	} else if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
314 		   (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) {
315 		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
316 
317 		if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
318 		     dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) &&
319 		    radeon_connector->ddc_bus->has_aux)
320 			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
321 							      &radeon_connector->ddc_bus->aux.ddc);
322 		else if (radeon_connector->ddc_bus)
323 			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
324 							      &radeon_connector->ddc_bus->adapter);
325 	} else if (vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC &&
326 		   connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
327 		   radeon_connector->ddc_bus) {
328 		radeon_connector->edid = drm_get_edid_switcheroo(&radeon_connector->base,
329 								 &radeon_connector->ddc_bus->adapter);
330 	} else if (radeon_connector->ddc_bus) {
331 		radeon_connector->edid = drm_get_edid(&radeon_connector->base,
332 						      &radeon_connector->ddc_bus->adapter);
333 	}
334 
335 	if (!radeon_connector->edid) {
336 		/* don't fetch the edid from the vbios if ddc fails and runpm is
337 		 * enabled so we report disconnected.
338 		 */
339 		if ((rdev->flags & RADEON_IS_PX) && (radeon_runtime_pm != 0))
340 			return;
341 
342 		if (rdev->is_atom_bios) {
343 			/* some laptops provide a hardcoded edid in rom for LCDs */
344 			if (((connector->connector_type == DRM_MODE_CONNECTOR_LVDS) ||
345 			     (connector->connector_type == DRM_MODE_CONNECTOR_eDP)))
346 				radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
347 		} else {
348 			/* some servers provide a hardcoded edid in rom for KVMs */
349 			radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
350 		}
351 	}
352 }
353 
354 static void radeon_connector_free_edid(struct drm_connector *connector)
355 {
356 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
357 
358 	if (radeon_connector->edid) {
359 		kfree(radeon_connector->edid);
360 		radeon_connector->edid = NULL;
361 	}
362 }
363 
364 static int radeon_ddc_get_modes(struct drm_connector *connector)
365 {
366 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
367 	int ret;
368 
369 	if (radeon_connector->edid) {
370 		drm_connector_update_edid_property(connector, radeon_connector->edid);
371 		ret = drm_add_edid_modes(connector, radeon_connector->edid);
372 		return ret;
373 	}
374 	drm_connector_update_edid_property(connector, NULL);
375 	return 0;
376 }
377 
378 static struct drm_encoder *radeon_best_single_encoder(struct drm_connector *connector)
379 {
380 	struct drm_encoder *encoder;
381 
382 	/* pick the first one */
383 	drm_connector_for_each_possible_encoder(connector, encoder)
384 		return encoder;
385 
386 	return NULL;
387 }
388 
389 static void radeon_get_native_mode(struct drm_connector *connector)
390 {
391 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
392 	struct radeon_encoder *radeon_encoder;
393 
394 	if (encoder == NULL)
395 		return;
396 
397 	radeon_encoder = to_radeon_encoder(encoder);
398 
399 	if (!list_empty(&connector->probed_modes)) {
400 		struct drm_display_mode *preferred_mode =
401 			list_first_entry(&connector->probed_modes,
402 					 struct drm_display_mode, head);
403 
404 		radeon_encoder->native_mode = *preferred_mode;
405 	} else {
406 		radeon_encoder->native_mode.clock = 0;
407 	}
408 }
409 
410 /*
411  * radeon_connector_analog_encoder_conflict_solve
412  * - search for other connectors sharing this encoder
413  *   if priority is true, then set them disconnected if this is connected
414  *   if priority is false, set us disconnected if they are connected
415  */
416 static enum drm_connector_status
417 radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
418 					       struct drm_encoder *encoder,
419 					       enum drm_connector_status current_status,
420 					       bool priority)
421 {
422 	struct drm_device *dev = connector->dev;
423 	struct drm_connector *conflict;
424 	struct radeon_connector *radeon_conflict;
425 
426 	list_for_each_entry(conflict, &dev->mode_config.connector_list, head) {
427 		struct drm_encoder *enc;
428 
429 		if (conflict == connector)
430 			continue;
431 
432 		radeon_conflict = to_radeon_connector(conflict);
433 
434 		drm_connector_for_each_possible_encoder(conflict, enc) {
435 			/* if the IDs match */
436 			if (enc == encoder) {
437 				if (conflict->status != connector_status_connected)
438 					continue;
439 
440 				if (radeon_conflict->use_digital)
441 					continue;
442 
443 				if (priority) {
444 					DRM_DEBUG_KMS("1: conflicting encoders switching off %s\n",
445 						      conflict->name);
446 					DRM_DEBUG_KMS("in favor of %s\n",
447 						      connector->name);
448 					conflict->status = connector_status_disconnected;
449 					radeon_connector_update_scratch_regs(conflict, connector_status_disconnected);
450 				} else {
451 					DRM_DEBUG_KMS("2: conflicting encoders switching off %s\n",
452 						      connector->name);
453 					DRM_DEBUG_KMS("in favor of %s\n",
454 						      conflict->name);
455 					current_status = connector_status_disconnected;
456 				}
457 				break;
458 			}
459 		}
460 	}
461 	return current_status;
462 
463 }
464 
465 static struct drm_display_mode *radeon_fp_native_mode(struct drm_encoder *encoder)
466 {
467 	struct drm_device *dev = encoder->dev;
468 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
469 	struct drm_display_mode *mode = NULL;
470 	struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
471 
472 	if (native_mode->hdisplay != 0 &&
473 	    native_mode->vdisplay != 0 &&
474 	    native_mode->clock != 0) {
475 		mode = drm_mode_duplicate(dev, native_mode);
476 		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
477 		drm_mode_set_name(mode);
478 
479 		DRM_DEBUG_KMS("Adding native panel mode %s\n", mode->name);
480 	} else if (native_mode->hdisplay != 0 &&
481 		   native_mode->vdisplay != 0) {
482 		/* mac laptops without an edid */
483 		/* Note that this is not necessarily the exact panel mode,
484 		 * but an approximation based on the cvt formula.  For these
485 		 * systems we should ideally read the mode info out of the
486 		 * registers or add a mode table, but this works and is much
487 		 * simpler.
488 		 */
489 		mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
490 		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
491 		DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name);
492 	}
493 	return mode;
494 }
495 
496 static void radeon_add_common_modes(struct drm_encoder *encoder, struct drm_connector *connector)
497 {
498 	struct drm_device *dev = encoder->dev;
499 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
500 	struct drm_display_mode *mode = NULL;
501 	struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
502 	int i;
503 	struct mode_size {
504 		int w;
505 		int h;
506 	} common_modes[17] = {
507 		{ 640,  480},
508 		{ 720,  480},
509 		{ 800,  600},
510 		{ 848,  480},
511 		{1024,  768},
512 		{1152,  768},
513 		{1280,  720},
514 		{1280,  800},
515 		{1280,  854},
516 		{1280,  960},
517 		{1280, 1024},
518 		{1440,  900},
519 		{1400, 1050},
520 		{1680, 1050},
521 		{1600, 1200},
522 		{1920, 1080},
523 		{1920, 1200}
524 	};
525 
526 	for (i = 0; i < 17; i++) {
527 		if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
528 			if (common_modes[i].w > 1024 ||
529 			    common_modes[i].h > 768)
530 				continue;
531 		}
532 		if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
533 			if (common_modes[i].w > native_mode->hdisplay ||
534 			    common_modes[i].h > native_mode->vdisplay ||
535 			    (common_modes[i].w == native_mode->hdisplay &&
536 			     common_modes[i].h == native_mode->vdisplay))
537 				continue;
538 		}
539 		if (common_modes[i].w < 320 || common_modes[i].h < 200)
540 			continue;
541 
542 		mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);
543 		drm_mode_probed_add(connector, mode);
544 	}
545 }
546 
547 static int radeon_connector_set_property(struct drm_connector *connector, struct drm_property *property,
548 				  uint64_t val)
549 {
550 	struct drm_device *dev = connector->dev;
551 	struct radeon_device *rdev = dev->dev_private;
552 	struct drm_encoder *encoder;
553 	struct radeon_encoder *radeon_encoder;
554 
555 	if (property == rdev->mode_info.coherent_mode_property) {
556 		struct radeon_encoder_atom_dig *dig;
557 		bool new_coherent_mode;
558 
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_encoder->enc_priv)
567 			return 0;
568 
569 		dig = radeon_encoder->enc_priv;
570 		new_coherent_mode = val ? true : false;
571 		if (dig->coherent_mode != new_coherent_mode) {
572 			dig->coherent_mode = new_coherent_mode;
573 			radeon_property_change_mode(&radeon_encoder->base);
574 		}
575 	}
576 
577 	if (property == rdev->mode_info.audio_property) {
578 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
579 		/* need to find digital encoder on connector */
580 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
581 		if (!encoder)
582 			return 0;
583 
584 		radeon_encoder = to_radeon_encoder(encoder);
585 
586 		if (radeon_connector->audio != val) {
587 			radeon_connector->audio = val;
588 			radeon_property_change_mode(&radeon_encoder->base);
589 		}
590 	}
591 
592 	if (property == rdev->mode_info.dither_property) {
593 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
594 		/* need to find digital encoder on connector */
595 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
596 		if (!encoder)
597 			return 0;
598 
599 		radeon_encoder = to_radeon_encoder(encoder);
600 
601 		if (radeon_connector->dither != val) {
602 			radeon_connector->dither = val;
603 			radeon_property_change_mode(&radeon_encoder->base);
604 		}
605 	}
606 
607 	if (property == rdev->mode_info.underscan_property) {
608 		/* need to find digital encoder on connector */
609 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
610 		if (!encoder)
611 			return 0;
612 
613 		radeon_encoder = to_radeon_encoder(encoder);
614 
615 		if (radeon_encoder->underscan_type != val) {
616 			radeon_encoder->underscan_type = val;
617 			radeon_property_change_mode(&radeon_encoder->base);
618 		}
619 	}
620 
621 	if (property == rdev->mode_info.underscan_hborder_property) {
622 		/* need to find digital encoder on connector */
623 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
624 		if (!encoder)
625 			return 0;
626 
627 		radeon_encoder = to_radeon_encoder(encoder);
628 
629 		if (radeon_encoder->underscan_hborder != val) {
630 			radeon_encoder->underscan_hborder = val;
631 			radeon_property_change_mode(&radeon_encoder->base);
632 		}
633 	}
634 
635 	if (property == rdev->mode_info.underscan_vborder_property) {
636 		/* need to find digital encoder on connector */
637 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
638 		if (!encoder)
639 			return 0;
640 
641 		radeon_encoder = to_radeon_encoder(encoder);
642 
643 		if (radeon_encoder->underscan_vborder != val) {
644 			radeon_encoder->underscan_vborder = val;
645 			radeon_property_change_mode(&radeon_encoder->base);
646 		}
647 	}
648 
649 	if (property == rdev->mode_info.tv_std_property) {
650 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TVDAC);
651 		if (!encoder) {
652 			encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_DAC);
653 		}
654 
655 		if (!encoder)
656 			return 0;
657 
658 		radeon_encoder = to_radeon_encoder(encoder);
659 		if (!radeon_encoder->enc_priv)
660 			return 0;
661 		if (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom) {
662 			struct radeon_encoder_atom_dac *dac_int;
663 			dac_int = radeon_encoder->enc_priv;
664 			dac_int->tv_std = val;
665 		} else {
666 			struct radeon_encoder_tv_dac *dac_int;
667 			dac_int = radeon_encoder->enc_priv;
668 			dac_int->tv_std = val;
669 		}
670 		radeon_property_change_mode(&radeon_encoder->base);
671 	}
672 
673 	if (property == rdev->mode_info.load_detect_property) {
674 		struct radeon_connector *radeon_connector =
675 			to_radeon_connector(connector);
676 
677 		if (val == 0)
678 			radeon_connector->dac_load_detect = false;
679 		else
680 			radeon_connector->dac_load_detect = true;
681 	}
682 
683 	if (property == rdev->mode_info.tmds_pll_property) {
684 		struct radeon_encoder_int_tmds *tmds = NULL;
685 		bool ret = false;
686 		/* need to find digital encoder on connector */
687 		encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
688 		if (!encoder)
689 			return 0;
690 
691 		radeon_encoder = to_radeon_encoder(encoder);
692 
693 		tmds = radeon_encoder->enc_priv;
694 		if (!tmds)
695 			return 0;
696 
697 		if (val == 0) {
698 			if (rdev->is_atom_bios)
699 				ret = radeon_atombios_get_tmds_info(radeon_encoder, tmds);
700 			else
701 				ret = radeon_legacy_get_tmds_info_from_combios(radeon_encoder, tmds);
702 		}
703 		if (val == 1 || !ret)
704 			radeon_legacy_get_tmds_info_from_table(radeon_encoder, tmds);
705 
706 		radeon_property_change_mode(&radeon_encoder->base);
707 	}
708 
709 	if (property == dev->mode_config.scaling_mode_property) {
710 		enum radeon_rmx_type rmx_type;
711 
712 		if (connector->encoder)
713 			radeon_encoder = to_radeon_encoder(connector->encoder);
714 		else {
715 			const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
716 			radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
717 		}
718 
719 		switch (val) {
720 		default:
721 		case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
722 		case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
723 		case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
724 		case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
725 		}
726 		if (radeon_encoder->rmx_type == rmx_type)
727 			return 0;
728 
729 		if ((rmx_type != DRM_MODE_SCALE_NONE) &&
730 		    (radeon_encoder->native_mode.clock == 0))
731 			return 0;
732 
733 		radeon_encoder->rmx_type = rmx_type;
734 
735 		radeon_property_change_mode(&radeon_encoder->base);
736 	}
737 
738 	if (property == rdev->mode_info.output_csc_property) {
739 		if (connector->encoder)
740 			radeon_encoder = to_radeon_encoder(connector->encoder);
741 		else {
742 			const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
743 			radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
744 		}
745 
746 		if (radeon_encoder->output_csc == val)
747 			return 0;
748 
749 		radeon_encoder->output_csc = val;
750 
751 		if (connector->encoder && connector->encoder->crtc) {
752 			struct drm_crtc *crtc  = connector->encoder->crtc;
753 			struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
754 
755 			radeon_crtc->output_csc = radeon_encoder->output_csc;
756 
757 			/*
758 			 * Our .gamma_set assumes the .gamma_store has been
759 			 * prefilled and don't care about its arguments.
760 			 */
761 			crtc->funcs->gamma_set(crtc, NULL, NULL, NULL, 0, NULL);
762 		}
763 	}
764 
765 	return 0;
766 }
767 
768 static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
769 					  struct drm_connector *connector)
770 {
771 	struct radeon_encoder *radeon_encoder =	to_radeon_encoder(encoder);
772 	struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
773 	struct drm_display_mode *t, *mode;
774 
775 	/* If the EDID preferred mode doesn't match the native mode, use it */
776 	list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
777 		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
778 			if (mode->hdisplay != native_mode->hdisplay ||
779 			    mode->vdisplay != native_mode->vdisplay)
780 				drm_mode_copy(native_mode, mode);
781 		}
782 	}
783 
784 	/* Try to get native mode details from EDID if necessary */
785 	if (!native_mode->clock) {
786 		list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
787 			if (mode->hdisplay == native_mode->hdisplay &&
788 			    mode->vdisplay == native_mode->vdisplay) {
789 				drm_mode_copy(native_mode, mode);
790 				drm_mode_set_crtcinfo(native_mode, CRTC_INTERLACE_HALVE_V);
791 				DRM_DEBUG_KMS("Determined LVDS native mode details from EDID\n");
792 				break;
793 			}
794 		}
795 	}
796 
797 	if (!native_mode->clock) {
798 		DRM_DEBUG_KMS("No LVDS native mode details, disabling RMX\n");
799 		radeon_encoder->rmx_type = RMX_OFF;
800 	}
801 }
802 
803 static int radeon_lvds_get_modes(struct drm_connector *connector)
804 {
805 	struct drm_encoder *encoder;
806 	int ret = 0;
807 	struct drm_display_mode *mode;
808 
809 	radeon_connector_get_edid(connector);
810 	ret = radeon_ddc_get_modes(connector);
811 	if (ret > 0) {
812 		encoder = radeon_best_single_encoder(connector);
813 		if (encoder) {
814 			radeon_fixup_lvds_native_mode(encoder, connector);
815 			/* add scaled modes */
816 			radeon_add_common_modes(encoder, connector);
817 		}
818 		return ret;
819 	}
820 
821 	encoder = radeon_best_single_encoder(connector);
822 	if (!encoder)
823 		return 0;
824 
825 	/* we have no EDID modes */
826 	mode = radeon_fp_native_mode(encoder);
827 	if (mode) {
828 		ret = 1;
829 		drm_mode_probed_add(connector, mode);
830 		/* add the width/height from vbios tables if available */
831 		connector->display_info.width_mm = mode->width_mm;
832 		connector->display_info.height_mm = mode->height_mm;
833 		/* add scaled modes */
834 		radeon_add_common_modes(encoder, connector);
835 	}
836 
837 	return ret;
838 }
839 
840 static enum drm_mode_status radeon_lvds_mode_valid(struct drm_connector *connector,
841 				  struct drm_display_mode *mode)
842 {
843 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
844 
845 	if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
846 		return MODE_PANEL;
847 
848 	if (encoder) {
849 		struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
850 		struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
851 
852 		/* AVIVO hardware supports downscaling modes larger than the panel
853 		 * to the panel size, but I'm not sure this is desirable.
854 		 */
855 		if ((mode->hdisplay > native_mode->hdisplay) ||
856 		    (mode->vdisplay > native_mode->vdisplay))
857 			return MODE_PANEL;
858 
859 		/* if scaling is disabled, block non-native modes */
860 		if (radeon_encoder->rmx_type == RMX_OFF) {
861 			if ((mode->hdisplay != native_mode->hdisplay) ||
862 			    (mode->vdisplay != native_mode->vdisplay))
863 				return MODE_PANEL;
864 		}
865 	}
866 
867 	return MODE_OK;
868 }
869 
870 static enum drm_connector_status
871 radeon_lvds_detect(struct drm_connector *connector, bool force)
872 {
873 	struct drm_device *dev = connector->dev;
874 	struct radeon_device *rdev = dev->dev_private;
875 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
876 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
877 	enum drm_connector_status ret = connector_status_disconnected;
878 	int r;
879 
880 	if (!drm_kms_helper_is_poll_worker()) {
881 		r = pm_runtime_get_sync(connector->dev->dev);
882 		if (r < 0) {
883 			pm_runtime_put_autosuspend(connector->dev->dev);
884 			return connector_status_disconnected;
885 		}
886 	}
887 
888 	if (encoder) {
889 		struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
890 		struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
891 
892 		/* check if panel is valid */
893 		if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
894 			ret = connector_status_connected;
895 		/* don't fetch the edid from the vbios if ddc fails and runpm is
896 		 * enabled so we report disconnected.
897 		 */
898 		if ((rdev->flags & RADEON_IS_PX) && (radeon_runtime_pm != 0))
899 			ret = connector_status_disconnected;
900 	}
901 
902 	/* check for edid as well */
903 	radeon_connector_get_edid(connector);
904 	if (radeon_connector->edid)
905 		ret = connector_status_connected;
906 	/* check acpi lid status ??? */
907 
908 	radeon_connector_update_scratch_regs(connector, ret);
909 
910 	if (!drm_kms_helper_is_poll_worker()) {
911 		pm_runtime_mark_last_busy(connector->dev->dev);
912 		pm_runtime_put_autosuspend(connector->dev->dev);
913 	}
914 
915 	return ret;
916 }
917 
918 static void radeon_connector_unregister(struct drm_connector *connector)
919 {
920 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
921 
922 	if (radeon_connector->ddc_bus && radeon_connector->ddc_bus->has_aux) {
923 		drm_dp_aux_unregister(&radeon_connector->ddc_bus->aux);
924 		radeon_connector->ddc_bus->has_aux = false;
925 	}
926 }
927 
928 static void radeon_connector_destroy(struct drm_connector *connector)
929 {
930 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
931 
932 	radeon_connector_free_edid(connector);
933 	kfree(radeon_connector->con_priv);
934 	drm_connector_unregister(connector);
935 	drm_connector_cleanup(connector);
936 	kfree(connector);
937 }
938 
939 static int radeon_lvds_set_property(struct drm_connector *connector,
940 				    struct drm_property *property,
941 				    uint64_t value)
942 {
943 	struct drm_device *dev = connector->dev;
944 	struct radeon_encoder *radeon_encoder;
945 	enum radeon_rmx_type rmx_type;
946 
947 	DRM_DEBUG_KMS("\n");
948 	if (property != dev->mode_config.scaling_mode_property)
949 		return 0;
950 
951 	if (connector->encoder)
952 		radeon_encoder = to_radeon_encoder(connector->encoder);
953 	else {
954 		const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
955 		radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
956 	}
957 
958 	switch (value) {
959 	case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
960 	case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
961 	case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
962 	default:
963 	case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
964 	}
965 	if (radeon_encoder->rmx_type == rmx_type)
966 		return 0;
967 
968 	radeon_encoder->rmx_type = rmx_type;
969 
970 	radeon_property_change_mode(&radeon_encoder->base);
971 	return 0;
972 }
973 
974 
975 static const struct drm_connector_helper_funcs radeon_lvds_connector_helper_funcs = {
976 	.get_modes = radeon_lvds_get_modes,
977 	.mode_valid = radeon_lvds_mode_valid,
978 	.best_encoder = radeon_best_single_encoder,
979 };
980 
981 static const struct drm_connector_funcs radeon_lvds_connector_funcs = {
982 	.dpms = drm_helper_connector_dpms,
983 	.detect = radeon_lvds_detect,
984 	.fill_modes = drm_helper_probe_single_connector_modes,
985 	.early_unregister = radeon_connector_unregister,
986 	.destroy = radeon_connector_destroy,
987 	.set_property = radeon_lvds_set_property,
988 };
989 
990 static int radeon_vga_get_modes(struct drm_connector *connector)
991 {
992 	int ret;
993 
994 	radeon_connector_get_edid(connector);
995 	ret = radeon_ddc_get_modes(connector);
996 
997 	radeon_get_native_mode(connector);
998 
999 	return ret;
1000 }
1001 
1002 static enum drm_mode_status radeon_vga_mode_valid(struct drm_connector *connector,
1003 				  struct drm_display_mode *mode)
1004 {
1005 	struct drm_device *dev = connector->dev;
1006 	struct radeon_device *rdev = dev->dev_private;
1007 
1008 	/* XXX check mode bandwidth */
1009 
1010 	if ((mode->clock / 10) > rdev->clock.max_pixel_clock)
1011 		return MODE_CLOCK_HIGH;
1012 
1013 	return MODE_OK;
1014 }
1015 
1016 static enum drm_connector_status
1017 radeon_vga_detect(struct drm_connector *connector, bool force)
1018 {
1019 	struct drm_device *dev = connector->dev;
1020 	struct radeon_device *rdev = dev->dev_private;
1021 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1022 	struct drm_encoder *encoder;
1023 	const struct drm_encoder_helper_funcs *encoder_funcs;
1024 	bool dret = false;
1025 	enum drm_connector_status ret = connector_status_disconnected;
1026 	int r;
1027 
1028 	if (!drm_kms_helper_is_poll_worker()) {
1029 		r = pm_runtime_get_sync(connector->dev->dev);
1030 		if (r < 0) {
1031 			pm_runtime_put_autosuspend(connector->dev->dev);
1032 			return connector_status_disconnected;
1033 		}
1034 	}
1035 
1036 	encoder = radeon_best_single_encoder(connector);
1037 	if (!encoder)
1038 		ret = connector_status_disconnected;
1039 
1040 	if (radeon_connector->ddc_bus)
1041 		dret = radeon_ddc_probe(radeon_connector, false);
1042 	if (dret) {
1043 		radeon_connector->detected_by_load = false;
1044 		radeon_connector_free_edid(connector);
1045 		radeon_connector_get_edid(connector);
1046 
1047 		if (!radeon_connector->edid) {
1048 			DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
1049 					connector->name);
1050 			ret = connector_status_connected;
1051 		} else {
1052 			radeon_connector->use_digital =
1053 				!!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
1054 
1055 			/* some oems have boards with separate digital and analog connectors
1056 			 * with a shared ddc line (often vga + hdmi)
1057 			 */
1058 			if (radeon_connector->use_digital && radeon_connector->shared_ddc) {
1059 				radeon_connector_free_edid(connector);
1060 				ret = connector_status_disconnected;
1061 			} else {
1062 				ret = connector_status_connected;
1063 			}
1064 		}
1065 	} else {
1066 
1067 		/* if we aren't forcing don't do destructive polling */
1068 		if (!force) {
1069 			/* only return the previous status if we last
1070 			 * detected a monitor via load.
1071 			 */
1072 			if (radeon_connector->detected_by_load)
1073 				ret = connector->status;
1074 			goto out;
1075 		}
1076 
1077 		if (radeon_connector->dac_load_detect && encoder) {
1078 			encoder_funcs = encoder->helper_private;
1079 			ret = encoder_funcs->detect(encoder, connector);
1080 			if (ret != connector_status_disconnected)
1081 				radeon_connector->detected_by_load = true;
1082 		}
1083 	}
1084 
1085 	if (ret == connector_status_connected)
1086 		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
1087 
1088 	/* RN50 and some RV100 asics in servers often have a hardcoded EDID in the
1089 	 * vbios to deal with KVMs. If we have one and are not able to detect a monitor
1090 	 * by other means, assume the CRT is connected and use that EDID.
1091 	 */
1092 	if ((!rdev->is_atom_bios) &&
1093 	    (ret == connector_status_disconnected) &&
1094 	    rdev->mode_info.bios_hardcoded_edid_size) {
1095 		ret = connector_status_connected;
1096 	}
1097 
1098 	radeon_connector_update_scratch_regs(connector, ret);
1099 
1100 out:
1101 	if (!drm_kms_helper_is_poll_worker()) {
1102 		pm_runtime_mark_last_busy(connector->dev->dev);
1103 		pm_runtime_put_autosuspend(connector->dev->dev);
1104 	}
1105 
1106 	return ret;
1107 }
1108 
1109 static const struct drm_connector_helper_funcs radeon_vga_connector_helper_funcs = {
1110 	.get_modes = radeon_vga_get_modes,
1111 	.mode_valid = radeon_vga_mode_valid,
1112 	.best_encoder = radeon_best_single_encoder,
1113 };
1114 
1115 static const struct drm_connector_funcs radeon_vga_connector_funcs = {
1116 	.dpms = drm_helper_connector_dpms,
1117 	.detect = radeon_vga_detect,
1118 	.fill_modes = drm_helper_probe_single_connector_modes,
1119 	.early_unregister = radeon_connector_unregister,
1120 	.destroy = radeon_connector_destroy,
1121 	.set_property = radeon_connector_set_property,
1122 };
1123 
1124 static int radeon_tv_get_modes(struct drm_connector *connector)
1125 {
1126 	struct drm_device *dev = connector->dev;
1127 	struct radeon_device *rdev = dev->dev_private;
1128 	struct drm_display_mode *tv_mode;
1129 	struct drm_encoder *encoder;
1130 
1131 	encoder = radeon_best_single_encoder(connector);
1132 	if (!encoder)
1133 		return 0;
1134 
1135 	/* avivo chips can scale any mode */
1136 	if (rdev->family >= CHIP_RS600)
1137 		/* add scaled modes */
1138 		radeon_add_common_modes(encoder, connector);
1139 	else {
1140 		/* only 800x600 is supported right now on pre-avivo chips */
1141 		tv_mode = drm_cvt_mode(dev, 800, 600, 60, false, false, false);
1142 		tv_mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
1143 		drm_mode_probed_add(connector, tv_mode);
1144 	}
1145 	return 1;
1146 }
1147 
1148 static enum drm_mode_status radeon_tv_mode_valid(struct drm_connector *connector,
1149 				struct drm_display_mode *mode)
1150 {
1151 	if ((mode->hdisplay > 1024) || (mode->vdisplay > 768))
1152 		return MODE_CLOCK_RANGE;
1153 	return MODE_OK;
1154 }
1155 
1156 static enum drm_connector_status
1157 radeon_tv_detect(struct drm_connector *connector, bool force)
1158 {
1159 	struct drm_encoder *encoder;
1160 	const struct drm_encoder_helper_funcs *encoder_funcs;
1161 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1162 	enum drm_connector_status ret = connector_status_disconnected;
1163 	int r;
1164 
1165 	if (!radeon_connector->dac_load_detect)
1166 		return ret;
1167 
1168 	if (!drm_kms_helper_is_poll_worker()) {
1169 		r = pm_runtime_get_sync(connector->dev->dev);
1170 		if (r < 0) {
1171 			pm_runtime_put_autosuspend(connector->dev->dev);
1172 			return connector_status_disconnected;
1173 		}
1174 	}
1175 
1176 	encoder = radeon_best_single_encoder(connector);
1177 	if (!encoder)
1178 		ret = connector_status_disconnected;
1179 	else {
1180 		encoder_funcs = encoder->helper_private;
1181 		ret = encoder_funcs->detect(encoder, connector);
1182 	}
1183 	if (ret == connector_status_connected)
1184 		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, false);
1185 	radeon_connector_update_scratch_regs(connector, ret);
1186 
1187 	if (!drm_kms_helper_is_poll_worker()) {
1188 		pm_runtime_mark_last_busy(connector->dev->dev);
1189 		pm_runtime_put_autosuspend(connector->dev->dev);
1190 	}
1191 
1192 	return ret;
1193 }
1194 
1195 static const struct drm_connector_helper_funcs radeon_tv_connector_helper_funcs = {
1196 	.get_modes = radeon_tv_get_modes,
1197 	.mode_valid = radeon_tv_mode_valid,
1198 	.best_encoder = radeon_best_single_encoder,
1199 };
1200 
1201 static const struct drm_connector_funcs radeon_tv_connector_funcs = {
1202 	.dpms = drm_helper_connector_dpms,
1203 	.detect = radeon_tv_detect,
1204 	.fill_modes = drm_helper_probe_single_connector_modes,
1205 	.early_unregister = radeon_connector_unregister,
1206 	.destroy = radeon_connector_destroy,
1207 	.set_property = radeon_connector_set_property,
1208 };
1209 
1210 static bool radeon_check_hpd_status_unchanged(struct drm_connector *connector)
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 	enum drm_connector_status status;
1216 
1217 	/* We only trust HPD on R600 and newer ASICS. */
1218 	if (rdev->family >= CHIP_R600
1219 	  && radeon_connector->hpd.hpd != RADEON_HPD_NONE) {
1220 		if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
1221 			status = connector_status_connected;
1222 		else
1223 			status = connector_status_disconnected;
1224 		if (connector->status == status)
1225 			return true;
1226 	}
1227 
1228 	return false;
1229 }
1230 
1231 /*
1232  * DVI is complicated
1233  * Do a DDC probe, if DDC probe passes, get the full EDID so
1234  * we can do analog/digital monitor detection at this point.
1235  * If the monitor is an analog monitor or we got no DDC,
1236  * we need to find the DAC encoder object for this connector.
1237  * If we got no DDC, we do load detection on the DAC encoder object.
1238  * If we got analog DDC or load detection passes on the DAC encoder
1239  * we have to check if this analog encoder is shared with anyone else (TV)
1240  * if its shared we have to set the other connector to disconnected.
1241  */
1242 static enum drm_connector_status
1243 radeon_dvi_detect(struct drm_connector *connector, bool force)
1244 {
1245 	struct drm_device *dev = connector->dev;
1246 	struct radeon_device *rdev = dev->dev_private;
1247 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1248 	struct drm_encoder *encoder = NULL;
1249 	const struct drm_encoder_helper_funcs *encoder_funcs;
1250 	int r;
1251 	enum drm_connector_status ret = connector_status_disconnected;
1252 	bool dret = false, broken_edid = false;
1253 
1254 	if (!drm_kms_helper_is_poll_worker()) {
1255 		r = pm_runtime_get_sync(connector->dev->dev);
1256 		if (r < 0) {
1257 			pm_runtime_put_autosuspend(connector->dev->dev);
1258 			return connector_status_disconnected;
1259 		}
1260 	}
1261 
1262 	if (radeon_connector->detected_hpd_without_ddc) {
1263 		force = true;
1264 		radeon_connector->detected_hpd_without_ddc = false;
1265 	}
1266 
1267 	if (!force && radeon_check_hpd_status_unchanged(connector)) {
1268 		ret = connector->status;
1269 		goto exit;
1270 	}
1271 
1272 	if (radeon_connector->ddc_bus) {
1273 		dret = radeon_ddc_probe(radeon_connector, false);
1274 
1275 		/* Sometimes the pins required for the DDC probe on DVI
1276 		 * connectors don't make contact at the same time that the ones
1277 		 * for HPD do. If the DDC probe fails even though we had an HPD
1278 		 * signal, try again later */
1279 		if (!dret && !force &&
1280 		    connector->status != connector_status_connected) {
1281 			DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n");
1282 			radeon_connector->detected_hpd_without_ddc = true;
1283 			schedule_delayed_work(&rdev->hotplug_work,
1284 					      msecs_to_jiffies(1000));
1285 			goto exit;
1286 		}
1287 	}
1288 	if (dret) {
1289 		radeon_connector->detected_by_load = false;
1290 		radeon_connector_free_edid(connector);
1291 		radeon_connector_get_edid(connector);
1292 
1293 		if (!radeon_connector->edid) {
1294 			DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
1295 					connector->name);
1296 			/* rs690 seems to have a problem with connectors not existing and always
1297 			 * return a block of 0's. If we see this just stop polling on this output */
1298 			if ((rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) &&
1299 			    radeon_connector->base.null_edid_counter) {
1300 				ret = connector_status_disconnected;
1301 				DRM_ERROR("%s: detected RS690 floating bus bug, stopping ddc detect\n",
1302 					  connector->name);
1303 				radeon_connector->ddc_bus = NULL;
1304 			} else {
1305 				ret = connector_status_connected;
1306 				broken_edid = true; /* defer use_digital to later */
1307 			}
1308 		} else {
1309 			radeon_connector->use_digital =
1310 				!!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
1311 
1312 			/* some oems have boards with separate digital and analog connectors
1313 			 * with a shared ddc line (often vga + hdmi)
1314 			 */
1315 			if ((!radeon_connector->use_digital) && radeon_connector->shared_ddc) {
1316 				radeon_connector_free_edid(connector);
1317 				ret = connector_status_disconnected;
1318 			} else {
1319 				ret = connector_status_connected;
1320 			}
1321 			/* This gets complicated.  We have boards with VGA + HDMI with a
1322 			 * shared DDC line and we have boards with DVI-D + HDMI with a shared
1323 			 * DDC line.  The latter is more complex because with DVI<->HDMI adapters
1324 			 * you don't really know what's connected to which port as both are digital.
1325 			 */
1326 			if (radeon_connector->shared_ddc && (ret == connector_status_connected)) {
1327 				struct drm_connector *list_connector;
1328 				struct radeon_connector *list_radeon_connector;
1329 				list_for_each_entry(list_connector, &dev->mode_config.connector_list, head) {
1330 					if (connector == list_connector)
1331 						continue;
1332 					list_radeon_connector = to_radeon_connector(list_connector);
1333 					if (list_radeon_connector->shared_ddc &&
1334 					    (list_radeon_connector->ddc_bus->rec.i2c_id ==
1335 					     radeon_connector->ddc_bus->rec.i2c_id)) {
1336 						/* cases where both connectors are digital */
1337 						if (list_connector->connector_type != DRM_MODE_CONNECTOR_VGA) {
1338 							/* hpd is our only option in this case */
1339 							if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
1340 								radeon_connector_free_edid(connector);
1341 								ret = connector_status_disconnected;
1342 							}
1343 						}
1344 					}
1345 				}
1346 			}
1347 		}
1348 	}
1349 
1350 	if ((ret == connector_status_connected) && (radeon_connector->use_digital == true))
1351 		goto out;
1352 
1353 	/* DVI-D and HDMI-A are digital only */
1354 	if ((connector->connector_type == DRM_MODE_CONNECTOR_DVID) ||
1355 	    (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA))
1356 		goto out;
1357 
1358 	/* if we aren't forcing don't do destructive polling */
1359 	if (!force) {
1360 		/* only return the previous status if we last
1361 		 * detected a monitor via load.
1362 		 */
1363 		if (radeon_connector->detected_by_load)
1364 			ret = connector->status;
1365 		goto out;
1366 	}
1367 
1368 	/* find analog encoder */
1369 	if (radeon_connector->dac_load_detect) {
1370 		drm_connector_for_each_possible_encoder(connector, encoder) {
1371 			if (encoder->encoder_type != DRM_MODE_ENCODER_DAC &&
1372 			    encoder->encoder_type != DRM_MODE_ENCODER_TVDAC)
1373 				continue;
1374 
1375 			encoder_funcs = encoder->helper_private;
1376 			if (encoder_funcs->detect) {
1377 				if (!broken_edid) {
1378 					if (ret != connector_status_connected) {
1379 						/* deal with analog monitors without DDC */
1380 						ret = encoder_funcs->detect(encoder, connector);
1381 						if (ret == connector_status_connected) {
1382 							radeon_connector->use_digital = false;
1383 						}
1384 						if (ret != connector_status_disconnected)
1385 							radeon_connector->detected_by_load = true;
1386 					}
1387 				} else {
1388 					enum drm_connector_status lret;
1389 					/* assume digital unless load detected otherwise */
1390 					radeon_connector->use_digital = true;
1391 					lret = encoder_funcs->detect(encoder, connector);
1392 					DRM_DEBUG_KMS("load_detect %x returned: %x\n",encoder->encoder_type,lret);
1393 					if (lret == connector_status_connected)
1394 						radeon_connector->use_digital = false;
1395 				}
1396 				break;
1397 			}
1398 		}
1399 	}
1400 
1401 	if ((ret == connector_status_connected) && (radeon_connector->use_digital == false) &&
1402 	    encoder) {
1403 		ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
1404 	}
1405 
1406 	/* RN50 and some RV100 asics in servers often have a hardcoded EDID in the
1407 	 * vbios to deal with KVMs. If we have one and are not able to detect a monitor
1408 	 * by other means, assume the DFP is connected and use that EDID.  In most
1409 	 * cases the DVI port is actually a virtual KVM port connected to the service
1410 	 * processor.
1411 	 */
1412 out:
1413 	if ((!rdev->is_atom_bios) &&
1414 	    (ret == connector_status_disconnected) &&
1415 	    rdev->mode_info.bios_hardcoded_edid_size) {
1416 		radeon_connector->use_digital = true;
1417 		ret = connector_status_connected;
1418 	}
1419 
1420 	/* updated in get modes as well since we need to know if it's analog or digital */
1421 	radeon_connector_update_scratch_regs(connector, ret);
1422 
1423 	if ((radeon_audio != 0) && radeon_connector->use_digital) {
1424 		const struct drm_connector_helper_funcs *connector_funcs =
1425 			connector->helper_private;
1426 
1427 		encoder = connector_funcs->best_encoder(connector);
1428 		if (encoder && (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)) {
1429 			radeon_connector_get_edid(connector);
1430 			radeon_audio_detect(connector, encoder, ret);
1431 		}
1432 	}
1433 
1434 exit:
1435 	if (!drm_kms_helper_is_poll_worker()) {
1436 		pm_runtime_mark_last_busy(connector->dev->dev);
1437 		pm_runtime_put_autosuspend(connector->dev->dev);
1438 	}
1439 
1440 	return ret;
1441 }
1442 
1443 /* okay need to be smart in here about which encoder to pick */
1444 static struct drm_encoder *radeon_dvi_encoder(struct drm_connector *connector)
1445 {
1446 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1447 	struct drm_encoder *encoder;
1448 
1449 	drm_connector_for_each_possible_encoder(connector, encoder) {
1450 		if (radeon_connector->use_digital == true) {
1451 			if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
1452 				return encoder;
1453 		} else {
1454 			if (encoder->encoder_type == DRM_MODE_ENCODER_DAC ||
1455 			    encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
1456 				return encoder;
1457 		}
1458 	}
1459 
1460 	/* see if we have a default encoder  TODO */
1461 
1462 	/* then check use digitial */
1463 	/* pick the first one */
1464 	drm_connector_for_each_possible_encoder(connector, encoder)
1465 		return encoder;
1466 
1467 	return NULL;
1468 }
1469 
1470 static void radeon_dvi_force(struct drm_connector *connector)
1471 {
1472 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1473 	if (connector->force == DRM_FORCE_ON)
1474 		radeon_connector->use_digital = false;
1475 	if (connector->force == DRM_FORCE_ON_DIGITAL)
1476 		radeon_connector->use_digital = true;
1477 }
1478 
1479 static enum drm_mode_status radeon_dvi_mode_valid(struct drm_connector *connector,
1480 				  struct drm_display_mode *mode)
1481 {
1482 	struct drm_device *dev = connector->dev;
1483 	struct radeon_device *rdev = dev->dev_private;
1484 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1485 
1486 	/* XXX check mode bandwidth */
1487 
1488 	/* clocks over 135 MHz have heat issues with DVI on RV100 */
1489 	if (radeon_connector->use_digital &&
1490 	    (rdev->family == CHIP_RV100) &&
1491 	    (mode->clock > 135000))
1492 		return MODE_CLOCK_HIGH;
1493 
1494 	if (radeon_connector->use_digital && (mode->clock > 165000)) {
1495 		if ((radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) ||
1496 		    (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
1497 		    (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
1498 			return MODE_OK;
1499 		else if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
1500 			/* HDMI 1.3+ supports max clock of 340 Mhz */
1501 			if (mode->clock > 340000)
1502 				return MODE_CLOCK_HIGH;
1503 			else
1504 				return MODE_OK;
1505 		} else {
1506 			return MODE_CLOCK_HIGH;
1507 		}
1508 	}
1509 
1510 	/* check against the max pixel clock */
1511 	if ((mode->clock / 10) > rdev->clock.max_pixel_clock)
1512 		return MODE_CLOCK_HIGH;
1513 
1514 	return MODE_OK;
1515 }
1516 
1517 static const struct drm_connector_helper_funcs radeon_dvi_connector_helper_funcs = {
1518 	.get_modes = radeon_vga_get_modes,
1519 	.mode_valid = radeon_dvi_mode_valid,
1520 	.best_encoder = radeon_dvi_encoder,
1521 };
1522 
1523 static const struct drm_connector_funcs radeon_dvi_connector_funcs = {
1524 	.dpms = drm_helper_connector_dpms,
1525 	.detect = radeon_dvi_detect,
1526 	.fill_modes = drm_helper_probe_single_connector_modes,
1527 	.set_property = radeon_connector_set_property,
1528 	.early_unregister = radeon_connector_unregister,
1529 	.destroy = radeon_connector_destroy,
1530 	.force = radeon_dvi_force,
1531 };
1532 
1533 static int radeon_dp_get_modes(struct drm_connector *connector)
1534 {
1535 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1536 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1537 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1538 	int ret;
1539 
1540 	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1541 	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1542 		struct drm_display_mode *mode;
1543 
1544 		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
1545 			if (!radeon_dig_connector->edp_on)
1546 				atombios_set_edp_panel_power(connector,
1547 							     ATOM_TRANSMITTER_ACTION_POWER_ON);
1548 			radeon_connector_get_edid(connector);
1549 			ret = radeon_ddc_get_modes(connector);
1550 			if (!radeon_dig_connector->edp_on)
1551 				atombios_set_edp_panel_power(connector,
1552 							     ATOM_TRANSMITTER_ACTION_POWER_OFF);
1553 		} else {
1554 			/* need to setup ddc on the bridge */
1555 			if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1556 			    ENCODER_OBJECT_ID_NONE) {
1557 				if (encoder)
1558 					radeon_atom_ext_encoder_setup_ddc(encoder);
1559 			}
1560 			radeon_connector_get_edid(connector);
1561 			ret = radeon_ddc_get_modes(connector);
1562 		}
1563 
1564 		if (ret > 0) {
1565 			if (encoder) {
1566 				radeon_fixup_lvds_native_mode(encoder, connector);
1567 				/* add scaled modes */
1568 				radeon_add_common_modes(encoder, connector);
1569 			}
1570 			return ret;
1571 		}
1572 
1573 		if (!encoder)
1574 			return 0;
1575 
1576 		/* we have no EDID modes */
1577 		mode = radeon_fp_native_mode(encoder);
1578 		if (mode) {
1579 			ret = 1;
1580 			drm_mode_probed_add(connector, mode);
1581 			/* add the width/height from vbios tables if available */
1582 			connector->display_info.width_mm = mode->width_mm;
1583 			connector->display_info.height_mm = mode->height_mm;
1584 			/* add scaled modes */
1585 			radeon_add_common_modes(encoder, connector);
1586 		}
1587 	} else {
1588 		/* need to setup ddc on the bridge */
1589 		if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1590 			ENCODER_OBJECT_ID_NONE) {
1591 			if (encoder)
1592 				radeon_atom_ext_encoder_setup_ddc(encoder);
1593 		}
1594 		radeon_connector_get_edid(connector);
1595 		ret = radeon_ddc_get_modes(connector);
1596 
1597 		radeon_get_native_mode(connector);
1598 	}
1599 
1600 	return ret;
1601 }
1602 
1603 u16 radeon_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector)
1604 {
1605 	struct drm_encoder *encoder;
1606 	struct radeon_encoder *radeon_encoder;
1607 
1608 	drm_connector_for_each_possible_encoder(connector, encoder) {
1609 		radeon_encoder = to_radeon_encoder(encoder);
1610 
1611 		switch (radeon_encoder->encoder_id) {
1612 		case ENCODER_OBJECT_ID_TRAVIS:
1613 		case ENCODER_OBJECT_ID_NUTMEG:
1614 			return radeon_encoder->encoder_id;
1615 		default:
1616 			break;
1617 		}
1618 	}
1619 
1620 	return ENCODER_OBJECT_ID_NONE;
1621 }
1622 
1623 static bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector)
1624 {
1625 	struct drm_encoder *encoder;
1626 	struct radeon_encoder *radeon_encoder;
1627 	bool found = false;
1628 
1629 	drm_connector_for_each_possible_encoder(connector, encoder) {
1630 		radeon_encoder = to_radeon_encoder(encoder);
1631 		if (radeon_encoder->caps & ATOM_ENCODER_CAP_RECORD_HBR2)
1632 			found = true;
1633 	}
1634 
1635 	return found;
1636 }
1637 
1638 bool radeon_connector_is_dp12_capable(struct drm_connector *connector)
1639 {
1640 	struct drm_device *dev = connector->dev;
1641 	struct radeon_device *rdev = dev->dev_private;
1642 
1643 	if (ASIC_IS_DCE5(rdev) &&
1644 	    (rdev->clock.default_dispclk >= 53900) &&
1645 	    radeon_connector_encoder_is_hbr2(connector)) {
1646 		return true;
1647 	}
1648 
1649 	return false;
1650 }
1651 
1652 static enum drm_connector_status
1653 radeon_dp_detect(struct drm_connector *connector, bool force)
1654 {
1655 	struct drm_device *dev = connector->dev;
1656 	struct radeon_device *rdev = dev->dev_private;
1657 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1658 	enum drm_connector_status ret = connector_status_disconnected;
1659 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1660 	struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1661 	int r;
1662 
1663 	if (radeon_dig_connector->is_mst)
1664 		return connector_status_disconnected;
1665 
1666 	if (!drm_kms_helper_is_poll_worker()) {
1667 		r = pm_runtime_get_sync(connector->dev->dev);
1668 		if (r < 0) {
1669 			pm_runtime_put_autosuspend(connector->dev->dev);
1670 			return connector_status_disconnected;
1671 		}
1672 	}
1673 
1674 	if (!force && radeon_check_hpd_status_unchanged(connector)) {
1675 		ret = connector->status;
1676 		goto out;
1677 	}
1678 
1679 	radeon_connector_free_edid(connector);
1680 
1681 	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1682 	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1683 		if (encoder) {
1684 			struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1685 			struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
1686 
1687 			/* check if panel is valid */
1688 			if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
1689 				ret = connector_status_connected;
1690 			/* don't fetch the edid from the vbios if ddc fails and runpm is
1691 			 * enabled so we report disconnected.
1692 			 */
1693 			if ((rdev->flags & RADEON_IS_PX) && (radeon_runtime_pm != 0))
1694 				ret = connector_status_disconnected;
1695 		}
1696 		/* eDP is always DP */
1697 		radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1698 		if (!radeon_dig_connector->edp_on)
1699 			atombios_set_edp_panel_power(connector,
1700 						     ATOM_TRANSMITTER_ACTION_POWER_ON);
1701 		if (radeon_dp_getdpcd(radeon_connector))
1702 			ret = connector_status_connected;
1703 		if (!radeon_dig_connector->edp_on)
1704 			atombios_set_edp_panel_power(connector,
1705 						     ATOM_TRANSMITTER_ACTION_POWER_OFF);
1706 	} else if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1707 		   ENCODER_OBJECT_ID_NONE) {
1708 		/* DP bridges are always DP */
1709 		radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1710 		/* get the DPCD from the bridge */
1711 		radeon_dp_getdpcd(radeon_connector);
1712 
1713 		if (encoder) {
1714 			/* setup ddc on the bridge */
1715 			radeon_atom_ext_encoder_setup_ddc(encoder);
1716 			/* bridge chips are always aux */
1717 			if (radeon_ddc_probe(radeon_connector, true)) /* try DDC */
1718 				ret = connector_status_connected;
1719 			else if (radeon_connector->dac_load_detect) { /* try load detection */
1720 				const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
1721 				ret = encoder_funcs->detect(encoder, connector);
1722 			}
1723 		}
1724 	} else {
1725 		radeon_dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
1726 		if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
1727 			ret = connector_status_connected;
1728 			if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
1729 				radeon_dp_getdpcd(radeon_connector);
1730 				r = radeon_dp_mst_probe(radeon_connector);
1731 				if (r == 1)
1732 					ret = connector_status_disconnected;
1733 			}
1734 		} else {
1735 			if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
1736 				if (radeon_dp_getdpcd(radeon_connector)) {
1737 					r = radeon_dp_mst_probe(radeon_connector);
1738 					if (r == 1)
1739 						ret = connector_status_disconnected;
1740 					else
1741 						ret = connector_status_connected;
1742 				}
1743 			} else {
1744 				/* try non-aux ddc (DP to DVI/HDMI/etc. adapter) */
1745 				if (radeon_ddc_probe(radeon_connector, false))
1746 					ret = connector_status_connected;
1747 			}
1748 		}
1749 	}
1750 
1751 	radeon_connector_update_scratch_regs(connector, ret);
1752 
1753 	if ((radeon_audio != 0) && encoder) {
1754 		radeon_connector_get_edid(connector);
1755 		radeon_audio_detect(connector, encoder, ret);
1756 	}
1757 
1758 out:
1759 	if (!drm_kms_helper_is_poll_worker()) {
1760 		pm_runtime_mark_last_busy(connector->dev->dev);
1761 		pm_runtime_put_autosuspend(connector->dev->dev);
1762 	}
1763 
1764 	return ret;
1765 }
1766 
1767 static enum drm_mode_status radeon_dp_mode_valid(struct drm_connector *connector,
1768 				  struct drm_display_mode *mode)
1769 {
1770 	struct drm_device *dev = connector->dev;
1771 	struct radeon_device *rdev = dev->dev_private;
1772 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1773 	struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1774 
1775 	/* XXX check mode bandwidth */
1776 
1777 	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1778 	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1779 		struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1780 
1781 		if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
1782 			return MODE_PANEL;
1783 
1784 		if (encoder) {
1785 			struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1786 			struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
1787 
1788 			/* AVIVO hardware supports downscaling modes larger than the panel
1789 			 * to the panel size, but I'm not sure this is desirable.
1790 			 */
1791 			if ((mode->hdisplay > native_mode->hdisplay) ||
1792 			    (mode->vdisplay > native_mode->vdisplay))
1793 				return MODE_PANEL;
1794 
1795 			/* if scaling is disabled, block non-native modes */
1796 			if (radeon_encoder->rmx_type == RMX_OFF) {
1797 				if ((mode->hdisplay != native_mode->hdisplay) ||
1798 				    (mode->vdisplay != native_mode->vdisplay))
1799 					return MODE_PANEL;
1800 			}
1801 		}
1802 	} else {
1803 		if ((radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
1804 		    (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
1805 			return radeon_dp_mode_valid_helper(connector, mode);
1806 		} else {
1807 			if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
1808 				/* HDMI 1.3+ supports max clock of 340 Mhz */
1809 				if (mode->clock > 340000)
1810 					return MODE_CLOCK_HIGH;
1811 			} else {
1812 				if (mode->clock > 165000)
1813 					return MODE_CLOCK_HIGH;
1814 			}
1815 		}
1816 	}
1817 
1818 	return MODE_OK;
1819 }
1820 
1821 static const struct drm_connector_helper_funcs radeon_dp_connector_helper_funcs = {
1822 	.get_modes = radeon_dp_get_modes,
1823 	.mode_valid = radeon_dp_mode_valid,
1824 	.best_encoder = radeon_dvi_encoder,
1825 };
1826 
1827 static const struct drm_connector_funcs radeon_dp_connector_funcs = {
1828 	.dpms = drm_helper_connector_dpms,
1829 	.detect = radeon_dp_detect,
1830 	.fill_modes = drm_helper_probe_single_connector_modes,
1831 	.set_property = radeon_connector_set_property,
1832 	.early_unregister = radeon_connector_unregister,
1833 	.destroy = radeon_connector_destroy,
1834 	.force = radeon_dvi_force,
1835 };
1836 
1837 static const struct drm_connector_funcs radeon_edp_connector_funcs = {
1838 	.dpms = drm_helper_connector_dpms,
1839 	.detect = radeon_dp_detect,
1840 	.fill_modes = drm_helper_probe_single_connector_modes,
1841 	.set_property = radeon_lvds_set_property,
1842 	.early_unregister = radeon_connector_unregister,
1843 	.destroy = radeon_connector_destroy,
1844 	.force = radeon_dvi_force,
1845 };
1846 
1847 static const struct drm_connector_funcs radeon_lvds_bridge_connector_funcs = {
1848 	.dpms = drm_helper_connector_dpms,
1849 	.detect = radeon_dp_detect,
1850 	.fill_modes = drm_helper_probe_single_connector_modes,
1851 	.set_property = radeon_lvds_set_property,
1852 	.early_unregister = radeon_connector_unregister,
1853 	.destroy = radeon_connector_destroy,
1854 	.force = radeon_dvi_force,
1855 };
1856 
1857 void
1858 radeon_add_atom_connector(struct drm_device *dev,
1859 			  uint32_t connector_id,
1860 			  uint32_t supported_device,
1861 			  int connector_type,
1862 			  struct radeon_i2c_bus_rec *i2c_bus,
1863 			  uint32_t igp_lane_info,
1864 			  uint16_t connector_object_id,
1865 			  struct radeon_hpd *hpd,
1866 			  struct radeon_router *router)
1867 {
1868 	struct radeon_device *rdev = dev->dev_private;
1869 	struct drm_connector *connector;
1870 	struct radeon_connector *radeon_connector;
1871 	struct radeon_connector_atom_dig *radeon_dig_connector;
1872 	struct drm_encoder *encoder;
1873 	struct radeon_encoder *radeon_encoder;
1874 	struct i2c_adapter *ddc = NULL;
1875 	uint32_t subpixel_order = SubPixelNone;
1876 	bool shared_ddc = false;
1877 	bool is_dp_bridge = false;
1878 	bool has_aux = false;
1879 
1880 	if (connector_type == DRM_MODE_CONNECTOR_Unknown)
1881 		return;
1882 
1883 	/* if the user selected tv=0 don't try and add the connector */
1884 	if (((connector_type == DRM_MODE_CONNECTOR_SVIDEO) ||
1885 	     (connector_type == DRM_MODE_CONNECTOR_Composite) ||
1886 	     (connector_type == DRM_MODE_CONNECTOR_9PinDIN)) &&
1887 	    (radeon_tv == 0))
1888 		return;
1889 
1890 	/* see if we already added it */
1891 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1892 		radeon_connector = to_radeon_connector(connector);
1893 		if (radeon_connector->connector_id == connector_id) {
1894 			radeon_connector->devices |= supported_device;
1895 			return;
1896 		}
1897 		if (radeon_connector->ddc_bus && i2c_bus->valid) {
1898 			if (radeon_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) {
1899 				radeon_connector->shared_ddc = true;
1900 				shared_ddc = true;
1901 			}
1902 			if (radeon_connector->router_bus && router->ddc_valid &&
1903 			    (radeon_connector->router.router_id == router->router_id)) {
1904 				radeon_connector->shared_ddc = false;
1905 				shared_ddc = false;
1906 			}
1907 		}
1908 	}
1909 
1910 	/* check if it's a dp bridge */
1911 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1912 		radeon_encoder = to_radeon_encoder(encoder);
1913 		if (radeon_encoder->devices & supported_device) {
1914 			switch (radeon_encoder->encoder_id) {
1915 			case ENCODER_OBJECT_ID_TRAVIS:
1916 			case ENCODER_OBJECT_ID_NUTMEG:
1917 				is_dp_bridge = true;
1918 				break;
1919 			default:
1920 				break;
1921 			}
1922 		}
1923 	}
1924 
1925 	radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
1926 	if (!radeon_connector)
1927 		return;
1928 
1929 	connector = &radeon_connector->base;
1930 
1931 	radeon_connector->connector_id = connector_id;
1932 	radeon_connector->devices = supported_device;
1933 	radeon_connector->shared_ddc = shared_ddc;
1934 	radeon_connector->connector_object_id = connector_object_id;
1935 	radeon_connector->hpd = *hpd;
1936 
1937 	radeon_connector->router = *router;
1938 	if (router->ddc_valid || router->cd_valid) {
1939 		radeon_connector->router_bus = radeon_i2c_lookup(rdev, &router->i2c_info);
1940 		if (!radeon_connector->router_bus)
1941 			DRM_ERROR("Failed to assign router i2c bus! Check dmesg for i2c errors.\n");
1942 	}
1943 
1944 	if (is_dp_bridge) {
1945 		radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1946 		if (!radeon_dig_connector)
1947 			goto failed;
1948 		radeon_dig_connector->igp_lane_info = igp_lane_info;
1949 		radeon_connector->con_priv = radeon_dig_connector;
1950 		if (i2c_bus->valid) {
1951 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1952 			if (radeon_connector->ddc_bus) {
1953 				has_aux = true;
1954 				ddc = &radeon_connector->ddc_bus->adapter;
1955 			} else {
1956 				DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1957 			}
1958 		}
1959 		switch (connector_type) {
1960 		case DRM_MODE_CONNECTOR_VGA:
1961 		case DRM_MODE_CONNECTOR_DVIA:
1962 		default:
1963 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
1964 						    &radeon_dp_connector_funcs,
1965 						    connector_type,
1966 						    ddc);
1967 			drm_connector_helper_add(&radeon_connector->base,
1968 						 &radeon_dp_connector_helper_funcs);
1969 			connector->interlace_allowed = true;
1970 			connector->doublescan_allowed = true;
1971 			radeon_connector->dac_load_detect = true;
1972 			drm_object_attach_property(&radeon_connector->base.base,
1973 						      rdev->mode_info.load_detect_property,
1974 						      1);
1975 			drm_object_attach_property(&radeon_connector->base.base,
1976 						   dev->mode_config.scaling_mode_property,
1977 						   DRM_MODE_SCALE_NONE);
1978 			if (ASIC_IS_DCE5(rdev))
1979 				drm_object_attach_property(&radeon_connector->base.base,
1980 							   rdev->mode_info.output_csc_property,
1981 							   RADEON_OUTPUT_CSC_BYPASS);
1982 			break;
1983 		case DRM_MODE_CONNECTOR_DVII:
1984 		case DRM_MODE_CONNECTOR_DVID:
1985 		case DRM_MODE_CONNECTOR_HDMIA:
1986 		case DRM_MODE_CONNECTOR_HDMIB:
1987 		case DRM_MODE_CONNECTOR_DisplayPort:
1988 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
1989 						    &radeon_dp_connector_funcs,
1990 						    connector_type,
1991 						    ddc);
1992 			drm_connector_helper_add(&radeon_connector->base,
1993 						 &radeon_dp_connector_helper_funcs);
1994 			drm_object_attach_property(&radeon_connector->base.base,
1995 						      rdev->mode_info.underscan_property,
1996 						      UNDERSCAN_OFF);
1997 			drm_object_attach_property(&radeon_connector->base.base,
1998 						      rdev->mode_info.underscan_hborder_property,
1999 						      0);
2000 			drm_object_attach_property(&radeon_connector->base.base,
2001 						      rdev->mode_info.underscan_vborder_property,
2002 						      0);
2003 
2004 			drm_object_attach_property(&radeon_connector->base.base,
2005 						      dev->mode_config.scaling_mode_property,
2006 						      DRM_MODE_SCALE_NONE);
2007 
2008 			drm_object_attach_property(&radeon_connector->base.base,
2009 						   rdev->mode_info.dither_property,
2010 						   RADEON_FMT_DITHER_DISABLE);
2011 
2012 			if (radeon_audio != 0) {
2013 				drm_object_attach_property(&radeon_connector->base.base,
2014 							   rdev->mode_info.audio_property,
2015 							   RADEON_AUDIO_AUTO);
2016 				radeon_connector->audio = RADEON_AUDIO_AUTO;
2017 			}
2018 			if (ASIC_IS_DCE5(rdev))
2019 				drm_object_attach_property(&radeon_connector->base.base,
2020 							   rdev->mode_info.output_csc_property,
2021 							   RADEON_OUTPUT_CSC_BYPASS);
2022 
2023 			subpixel_order = SubPixelHorizontalRGB;
2024 			connector->interlace_allowed = true;
2025 			if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
2026 				connector->doublescan_allowed = true;
2027 			else
2028 				connector->doublescan_allowed = false;
2029 			if (connector_type == DRM_MODE_CONNECTOR_DVII) {
2030 				radeon_connector->dac_load_detect = true;
2031 				drm_object_attach_property(&radeon_connector->base.base,
2032 							      rdev->mode_info.load_detect_property,
2033 							      1);
2034 			}
2035 			break;
2036 		case DRM_MODE_CONNECTOR_LVDS:
2037 		case DRM_MODE_CONNECTOR_eDP:
2038 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2039 						    &radeon_lvds_bridge_connector_funcs,
2040 						    connector_type,
2041 						    ddc);
2042 			drm_connector_helper_add(&radeon_connector->base,
2043 						 &radeon_dp_connector_helper_funcs);
2044 			drm_object_attach_property(&radeon_connector->base.base,
2045 						      dev->mode_config.scaling_mode_property,
2046 						      DRM_MODE_SCALE_FULLSCREEN);
2047 			subpixel_order = SubPixelHorizontalRGB;
2048 			connector->interlace_allowed = false;
2049 			connector->doublescan_allowed = false;
2050 			break;
2051 		}
2052 	} else {
2053 		switch (connector_type) {
2054 		case DRM_MODE_CONNECTOR_VGA:
2055 			if (i2c_bus->valid) {
2056 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2057 				if (!radeon_connector->ddc_bus)
2058 					DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2059 				else
2060 					ddc = &radeon_connector->ddc_bus->adapter;
2061 			}
2062 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2063 						    &radeon_vga_connector_funcs,
2064 						    connector_type,
2065 						    ddc);
2066 			drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
2067 			radeon_connector->dac_load_detect = true;
2068 			drm_object_attach_property(&radeon_connector->base.base,
2069 						      rdev->mode_info.load_detect_property,
2070 						      1);
2071 			if (ASIC_IS_AVIVO(rdev))
2072 				drm_object_attach_property(&radeon_connector->base.base,
2073 							   dev->mode_config.scaling_mode_property,
2074 							   DRM_MODE_SCALE_NONE);
2075 			if (ASIC_IS_DCE5(rdev))
2076 				drm_object_attach_property(&radeon_connector->base.base,
2077 							   rdev->mode_info.output_csc_property,
2078 							   RADEON_OUTPUT_CSC_BYPASS);
2079 			/* no HPD on analog connectors */
2080 			radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2081 			connector->interlace_allowed = true;
2082 			connector->doublescan_allowed = true;
2083 			break;
2084 		case DRM_MODE_CONNECTOR_DVIA:
2085 			if (i2c_bus->valid) {
2086 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2087 				if (!radeon_connector->ddc_bus)
2088 					DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2089 				else
2090 					ddc = &radeon_connector->ddc_bus->adapter;
2091 			}
2092 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2093 						    &radeon_vga_connector_funcs,
2094 						    connector_type,
2095 						    ddc);
2096 			drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
2097 			radeon_connector->dac_load_detect = true;
2098 			drm_object_attach_property(&radeon_connector->base.base,
2099 						      rdev->mode_info.load_detect_property,
2100 						      1);
2101 			if (ASIC_IS_AVIVO(rdev))
2102 				drm_object_attach_property(&radeon_connector->base.base,
2103 							   dev->mode_config.scaling_mode_property,
2104 							   DRM_MODE_SCALE_NONE);
2105 			if (ASIC_IS_DCE5(rdev))
2106 				drm_object_attach_property(&radeon_connector->base.base,
2107 							   rdev->mode_info.output_csc_property,
2108 							   RADEON_OUTPUT_CSC_BYPASS);
2109 			/* no HPD on analog connectors */
2110 			radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2111 			connector->interlace_allowed = true;
2112 			connector->doublescan_allowed = true;
2113 			break;
2114 		case DRM_MODE_CONNECTOR_DVII:
2115 		case DRM_MODE_CONNECTOR_DVID:
2116 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2117 			if (!radeon_dig_connector)
2118 				goto failed;
2119 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2120 			radeon_connector->con_priv = radeon_dig_connector;
2121 			if (i2c_bus->valid) {
2122 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2123 				if (!radeon_connector->ddc_bus)
2124 					DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2125 				else
2126 					ddc = &radeon_connector->ddc_bus->adapter;
2127 			}
2128 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2129 						    &radeon_dvi_connector_funcs,
2130 						    connector_type,
2131 						    ddc);
2132 			drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
2133 			subpixel_order = SubPixelHorizontalRGB;
2134 			drm_object_attach_property(&radeon_connector->base.base,
2135 						      rdev->mode_info.coherent_mode_property,
2136 						      1);
2137 			if (ASIC_IS_AVIVO(rdev)) {
2138 				drm_object_attach_property(&radeon_connector->base.base,
2139 							      rdev->mode_info.underscan_property,
2140 							      UNDERSCAN_OFF);
2141 				drm_object_attach_property(&radeon_connector->base.base,
2142 							      rdev->mode_info.underscan_hborder_property,
2143 							      0);
2144 				drm_object_attach_property(&radeon_connector->base.base,
2145 							      rdev->mode_info.underscan_vborder_property,
2146 							      0);
2147 				drm_object_attach_property(&radeon_connector->base.base,
2148 							   rdev->mode_info.dither_property,
2149 							   RADEON_FMT_DITHER_DISABLE);
2150 				drm_object_attach_property(&radeon_connector->base.base,
2151 							   dev->mode_config.scaling_mode_property,
2152 							   DRM_MODE_SCALE_NONE);
2153 			}
2154 			if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
2155 				drm_object_attach_property(&radeon_connector->base.base,
2156 							   rdev->mode_info.audio_property,
2157 							   RADEON_AUDIO_AUTO);
2158 				radeon_connector->audio = RADEON_AUDIO_AUTO;
2159 			}
2160 			if (connector_type == DRM_MODE_CONNECTOR_DVII) {
2161 				radeon_connector->dac_load_detect = true;
2162 				drm_object_attach_property(&radeon_connector->base.base,
2163 							      rdev->mode_info.load_detect_property,
2164 							      1);
2165 			}
2166 			if (ASIC_IS_DCE5(rdev))
2167 				drm_object_attach_property(&radeon_connector->base.base,
2168 							   rdev->mode_info.output_csc_property,
2169 							   RADEON_OUTPUT_CSC_BYPASS);
2170 			connector->interlace_allowed = true;
2171 			if (connector_type == DRM_MODE_CONNECTOR_DVII)
2172 				connector->doublescan_allowed = true;
2173 			else
2174 				connector->doublescan_allowed = false;
2175 			break;
2176 		case DRM_MODE_CONNECTOR_HDMIA:
2177 		case DRM_MODE_CONNECTOR_HDMIB:
2178 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2179 			if (!radeon_dig_connector)
2180 				goto failed;
2181 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2182 			radeon_connector->con_priv = radeon_dig_connector;
2183 			if (i2c_bus->valid) {
2184 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2185 				if (!radeon_connector->ddc_bus)
2186 					DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2187 				else
2188 					ddc = &radeon_connector->ddc_bus->adapter;
2189 			}
2190 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2191 						    &radeon_dvi_connector_funcs,
2192 						    connector_type,
2193 						    ddc);
2194 			drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
2195 			drm_object_attach_property(&radeon_connector->base.base,
2196 						      rdev->mode_info.coherent_mode_property,
2197 						      1);
2198 			if (ASIC_IS_AVIVO(rdev)) {
2199 				drm_object_attach_property(&radeon_connector->base.base,
2200 							      rdev->mode_info.underscan_property,
2201 							      UNDERSCAN_OFF);
2202 				drm_object_attach_property(&radeon_connector->base.base,
2203 							      rdev->mode_info.underscan_hborder_property,
2204 							      0);
2205 				drm_object_attach_property(&radeon_connector->base.base,
2206 							      rdev->mode_info.underscan_vborder_property,
2207 							      0);
2208 				drm_object_attach_property(&radeon_connector->base.base,
2209 							   rdev->mode_info.dither_property,
2210 							   RADEON_FMT_DITHER_DISABLE);
2211 				drm_object_attach_property(&radeon_connector->base.base,
2212 							   dev->mode_config.scaling_mode_property,
2213 							   DRM_MODE_SCALE_NONE);
2214 			}
2215 			if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
2216 				drm_object_attach_property(&radeon_connector->base.base,
2217 							   rdev->mode_info.audio_property,
2218 							   RADEON_AUDIO_AUTO);
2219 				radeon_connector->audio = RADEON_AUDIO_AUTO;
2220 			}
2221 			if (ASIC_IS_DCE5(rdev))
2222 				drm_object_attach_property(&radeon_connector->base.base,
2223 							   rdev->mode_info.output_csc_property,
2224 							   RADEON_OUTPUT_CSC_BYPASS);
2225 			subpixel_order = SubPixelHorizontalRGB;
2226 			connector->interlace_allowed = true;
2227 			if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
2228 				connector->doublescan_allowed = true;
2229 			else
2230 				connector->doublescan_allowed = false;
2231 			break;
2232 		case DRM_MODE_CONNECTOR_DisplayPort:
2233 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2234 			if (!radeon_dig_connector)
2235 				goto failed;
2236 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2237 			radeon_connector->con_priv = radeon_dig_connector;
2238 			if (i2c_bus->valid) {
2239 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2240 				if (radeon_connector->ddc_bus) {
2241 					has_aux = true;
2242 					ddc = &radeon_connector->ddc_bus->adapter;
2243 				} else {
2244 					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2245 				}
2246 			}
2247 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2248 						    &radeon_dp_connector_funcs,
2249 						    connector_type,
2250 						    ddc);
2251 			drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
2252 			subpixel_order = SubPixelHorizontalRGB;
2253 			drm_object_attach_property(&radeon_connector->base.base,
2254 						      rdev->mode_info.coherent_mode_property,
2255 						      1);
2256 			if (ASIC_IS_AVIVO(rdev)) {
2257 				drm_object_attach_property(&radeon_connector->base.base,
2258 							      rdev->mode_info.underscan_property,
2259 							      UNDERSCAN_OFF);
2260 				drm_object_attach_property(&radeon_connector->base.base,
2261 							      rdev->mode_info.underscan_hborder_property,
2262 							      0);
2263 				drm_object_attach_property(&radeon_connector->base.base,
2264 							      rdev->mode_info.underscan_vborder_property,
2265 							      0);
2266 				drm_object_attach_property(&radeon_connector->base.base,
2267 							   rdev->mode_info.dither_property,
2268 							   RADEON_FMT_DITHER_DISABLE);
2269 				drm_object_attach_property(&radeon_connector->base.base,
2270 							   dev->mode_config.scaling_mode_property,
2271 							   DRM_MODE_SCALE_NONE);
2272 			}
2273 			if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
2274 				drm_object_attach_property(&radeon_connector->base.base,
2275 							   rdev->mode_info.audio_property,
2276 							   RADEON_AUDIO_AUTO);
2277 				radeon_connector->audio = RADEON_AUDIO_AUTO;
2278 			}
2279 			if (ASIC_IS_DCE5(rdev))
2280 				drm_object_attach_property(&radeon_connector->base.base,
2281 							   rdev->mode_info.output_csc_property,
2282 							   RADEON_OUTPUT_CSC_BYPASS);
2283 			connector->interlace_allowed = true;
2284 			/* in theory with a DP to VGA converter... */
2285 			connector->doublescan_allowed = false;
2286 			break;
2287 		case DRM_MODE_CONNECTOR_eDP:
2288 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2289 			if (!radeon_dig_connector)
2290 				goto failed;
2291 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2292 			radeon_connector->con_priv = radeon_dig_connector;
2293 			if (i2c_bus->valid) {
2294 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2295 				if (radeon_connector->ddc_bus) {
2296 					has_aux = true;
2297 					ddc = &radeon_connector->ddc_bus->adapter;
2298 				} else {
2299 					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2300 				}
2301 			}
2302 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2303 						    &radeon_edp_connector_funcs,
2304 						    connector_type,
2305 						    ddc);
2306 			drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
2307 			drm_object_attach_property(&radeon_connector->base.base,
2308 						      dev->mode_config.scaling_mode_property,
2309 						      DRM_MODE_SCALE_FULLSCREEN);
2310 			subpixel_order = SubPixelHorizontalRGB;
2311 			connector->interlace_allowed = false;
2312 			connector->doublescan_allowed = false;
2313 			break;
2314 		case DRM_MODE_CONNECTOR_SVIDEO:
2315 		case DRM_MODE_CONNECTOR_Composite:
2316 		case DRM_MODE_CONNECTOR_9PinDIN:
2317 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2318 						    &radeon_tv_connector_funcs,
2319 						    connector_type,
2320 						    ddc);
2321 			drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
2322 			radeon_connector->dac_load_detect = true;
2323 			drm_object_attach_property(&radeon_connector->base.base,
2324 						      rdev->mode_info.load_detect_property,
2325 						      1);
2326 			drm_object_attach_property(&radeon_connector->base.base,
2327 						      rdev->mode_info.tv_std_property,
2328 						      radeon_atombios_get_tv_info(rdev));
2329 			/* no HPD on analog connectors */
2330 			radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2331 			connector->interlace_allowed = false;
2332 			connector->doublescan_allowed = false;
2333 			break;
2334 		case DRM_MODE_CONNECTOR_LVDS:
2335 			radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
2336 			if (!radeon_dig_connector)
2337 				goto failed;
2338 			radeon_dig_connector->igp_lane_info = igp_lane_info;
2339 			radeon_connector->con_priv = radeon_dig_connector;
2340 			if (i2c_bus->valid) {
2341 				radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2342 				if (!radeon_connector->ddc_bus)
2343 					DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2344 				else
2345 					ddc = &radeon_connector->ddc_bus->adapter;
2346 			}
2347 			drm_connector_init_with_ddc(dev, &radeon_connector->base,
2348 						    &radeon_lvds_connector_funcs,
2349 						    connector_type,
2350 						    ddc);
2351 			drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
2352 			drm_object_attach_property(&radeon_connector->base.base,
2353 						      dev->mode_config.scaling_mode_property,
2354 						      DRM_MODE_SCALE_FULLSCREEN);
2355 			subpixel_order = SubPixelHorizontalRGB;
2356 			connector->interlace_allowed = false;
2357 			connector->doublescan_allowed = false;
2358 			break;
2359 		}
2360 	}
2361 
2362 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
2363 		if (i2c_bus->valid) {
2364 			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
2365 			                    DRM_CONNECTOR_POLL_DISCONNECT;
2366 		}
2367 	} else
2368 		connector->polled = DRM_CONNECTOR_POLL_HPD;
2369 
2370 	connector->display_info.subpixel_order = subpixel_order;
2371 	drm_connector_register(connector);
2372 
2373 	if (has_aux)
2374 		radeon_dp_aux_init(radeon_connector);
2375 
2376 	return;
2377 
2378 failed:
2379 	drm_connector_cleanup(connector);
2380 	kfree(connector);
2381 }
2382 
2383 void
2384 radeon_add_legacy_connector(struct drm_device *dev,
2385 			    uint32_t connector_id,
2386 			    uint32_t supported_device,
2387 			    int connector_type,
2388 			    struct radeon_i2c_bus_rec *i2c_bus,
2389 			    uint16_t connector_object_id,
2390 			    struct radeon_hpd *hpd)
2391 {
2392 	struct radeon_device *rdev = dev->dev_private;
2393 	struct drm_connector *connector;
2394 	struct radeon_connector *radeon_connector;
2395 	struct i2c_adapter *ddc = NULL;
2396 	uint32_t subpixel_order = SubPixelNone;
2397 
2398 	if (connector_type == DRM_MODE_CONNECTOR_Unknown)
2399 		return;
2400 
2401 	/* if the user selected tv=0 don't try and add the connector */
2402 	if (((connector_type == DRM_MODE_CONNECTOR_SVIDEO) ||
2403 	     (connector_type == DRM_MODE_CONNECTOR_Composite) ||
2404 	     (connector_type == DRM_MODE_CONNECTOR_9PinDIN)) &&
2405 	    (radeon_tv == 0))
2406 		return;
2407 
2408 	/* see if we already added it */
2409 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2410 		radeon_connector = to_radeon_connector(connector);
2411 		if (radeon_connector->connector_id == connector_id) {
2412 			radeon_connector->devices |= supported_device;
2413 			return;
2414 		}
2415 	}
2416 
2417 	radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
2418 	if (!radeon_connector)
2419 		return;
2420 
2421 	connector = &radeon_connector->base;
2422 
2423 	radeon_connector->connector_id = connector_id;
2424 	radeon_connector->devices = supported_device;
2425 	radeon_connector->connector_object_id = connector_object_id;
2426 	radeon_connector->hpd = *hpd;
2427 
2428 	switch (connector_type) {
2429 	case DRM_MODE_CONNECTOR_VGA:
2430 		if (i2c_bus->valid) {
2431 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2432 			if (!radeon_connector->ddc_bus)
2433 				DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2434 			else
2435 				ddc = &radeon_connector->ddc_bus->adapter;
2436 		}
2437 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2438 					    &radeon_vga_connector_funcs,
2439 					    connector_type,
2440 					    ddc);
2441 		drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
2442 		radeon_connector->dac_load_detect = true;
2443 		drm_object_attach_property(&radeon_connector->base.base,
2444 					      rdev->mode_info.load_detect_property,
2445 					      1);
2446 		/* no HPD on analog connectors */
2447 		radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2448 		connector->interlace_allowed = true;
2449 		connector->doublescan_allowed = true;
2450 		break;
2451 	case DRM_MODE_CONNECTOR_DVIA:
2452 		if (i2c_bus->valid) {
2453 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2454 			if (!radeon_connector->ddc_bus)
2455 				DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2456 			else
2457 				ddc = &radeon_connector->ddc_bus->adapter;
2458 		}
2459 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2460 					    &radeon_vga_connector_funcs,
2461 					    connector_type,
2462 					    ddc);
2463 		drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
2464 		radeon_connector->dac_load_detect = true;
2465 		drm_object_attach_property(&radeon_connector->base.base,
2466 					      rdev->mode_info.load_detect_property,
2467 					      1);
2468 		/* no HPD on analog connectors */
2469 		radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2470 		connector->interlace_allowed = true;
2471 		connector->doublescan_allowed = true;
2472 		break;
2473 	case DRM_MODE_CONNECTOR_DVII:
2474 	case DRM_MODE_CONNECTOR_DVID:
2475 		if (i2c_bus->valid) {
2476 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2477 			if (!radeon_connector->ddc_bus)
2478 				DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2479 			else
2480 				ddc = &radeon_connector->ddc_bus->adapter;
2481 		}
2482 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2483 					    &radeon_dvi_connector_funcs,
2484 					    connector_type,
2485 					    ddc);
2486 		drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
2487 		if (connector_type == DRM_MODE_CONNECTOR_DVII) {
2488 			radeon_connector->dac_load_detect = true;
2489 			drm_object_attach_property(&radeon_connector->base.base,
2490 						      rdev->mode_info.load_detect_property,
2491 						      1);
2492 		}
2493 		subpixel_order = SubPixelHorizontalRGB;
2494 		connector->interlace_allowed = true;
2495 		if (connector_type == DRM_MODE_CONNECTOR_DVII)
2496 			connector->doublescan_allowed = true;
2497 		else
2498 			connector->doublescan_allowed = false;
2499 		break;
2500 	case DRM_MODE_CONNECTOR_SVIDEO:
2501 	case DRM_MODE_CONNECTOR_Composite:
2502 	case DRM_MODE_CONNECTOR_9PinDIN:
2503 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2504 					    &radeon_tv_connector_funcs,
2505 					    connector_type,
2506 					    ddc);
2507 		drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
2508 		radeon_connector->dac_load_detect = true;
2509 		/* RS400,RC410,RS480 chipset seems to report a lot
2510 		 * of false positive on load detect, we haven't yet
2511 		 * found a way to make load detect reliable on those
2512 		 * chipset, thus just disable it for TV.
2513 		 */
2514 		if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480)
2515 			radeon_connector->dac_load_detect = false;
2516 		drm_object_attach_property(&radeon_connector->base.base,
2517 					      rdev->mode_info.load_detect_property,
2518 					      radeon_connector->dac_load_detect);
2519 		drm_object_attach_property(&radeon_connector->base.base,
2520 					      rdev->mode_info.tv_std_property,
2521 					      radeon_combios_get_tv_info(rdev));
2522 		/* no HPD on analog connectors */
2523 		radeon_connector->hpd.hpd = RADEON_HPD_NONE;
2524 		connector->interlace_allowed = false;
2525 		connector->doublescan_allowed = false;
2526 		break;
2527 	case DRM_MODE_CONNECTOR_LVDS:
2528 		if (i2c_bus->valid) {
2529 			radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
2530 			if (!radeon_connector->ddc_bus)
2531 				DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2532 			else
2533 				ddc = &radeon_connector->ddc_bus->adapter;
2534 		}
2535 		drm_connector_init_with_ddc(dev, &radeon_connector->base,
2536 					    &radeon_lvds_connector_funcs,
2537 					    connector_type,
2538 					    ddc);
2539 		drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
2540 		drm_object_attach_property(&radeon_connector->base.base,
2541 					      dev->mode_config.scaling_mode_property,
2542 					      DRM_MODE_SCALE_FULLSCREEN);
2543 		subpixel_order = SubPixelHorizontalRGB;
2544 		connector->interlace_allowed = false;
2545 		connector->doublescan_allowed = false;
2546 		break;
2547 	}
2548 
2549 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
2550 		if (i2c_bus->valid) {
2551 			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
2552 			                    DRM_CONNECTOR_POLL_DISCONNECT;
2553 		}
2554 	} else
2555 		connector->polled = DRM_CONNECTOR_POLL_HPD;
2556 
2557 	connector->display_info.subpixel_order = subpixel_order;
2558 	drm_connector_register(connector);
2559 }
2560 
2561 void radeon_setup_mst_connector(struct drm_device *dev)
2562 {
2563 	struct radeon_device *rdev = dev->dev_private;
2564 	struct drm_connector *connector;
2565 	struct radeon_connector *radeon_connector;
2566 
2567 	if (!ASIC_IS_DCE5(rdev))
2568 		return;
2569 
2570 	if (radeon_mst == 0)
2571 		return;
2572 
2573 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2574 		radeon_connector = to_radeon_connector(connector);
2575 
2576 		if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
2577 			continue;
2578 
2579 		radeon_dp_mst_init(radeon_connector);
2580 	}
2581 }
2582