1/*
   2 * Copyright 2007-8 Advanced Micro Devices, Inc.
   3 * Copyright 2008 Red Hat Inc.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the "Software"),
   7 * to deal in the Software without restriction, including without limitation
   8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 * and/or sell copies of the Software, and to permit persons to whom the
  10 * Software is furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice shall be included in
  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21 * OTHER DEALINGS IN THE SOFTWARE.
  22 *
  23 * Authors: Dave Airlie
  24 *          Alex Deucher
  25 */
  26
  27#include <drm/display/drm_dp_helper.h>
  28#include <drm/drm_crtc_helper.h>
  29#include <drm/drm_edid.h>
  30#include <drm/drm_modeset_helper_vtables.h>
  31#include <drm/drm_probe_helper.h>
  32#include <drm/amdgpu_drm.h>
  33#include "amdgpu.h"
  34#include "atom.h"
  35#include "atombios_encoders.h"
  36#include "atombios_dp.h"
  37#include "amdgpu_connectors.h"
  38#include "amdgpu_i2c.h"
  39#include "amdgpu_display.h"
  40
  41#include <linux/pm_runtime.h>
  42
  43void amdgpu_connector_hotplug(struct drm_connector *connector)
  44{
  45	struct drm_device *dev = connector->dev;
  46	struct amdgpu_device *adev = drm_to_adev(dev);
  47	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
  48
  49	/* bail if the connector does not have hpd pin, e.g.,
  50	 * VGA, TV, etc.
  51	 */
  52	if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE)
  53		return;
  54
  55	amdgpu_display_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd);
  56
  57	/* if the connector is already off, don't turn it back on */
  58	if (connector->dpms != DRM_MODE_DPMS_ON)
  59		return;
  60
  61	/* just deal with DP (not eDP) here. */
  62	if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
  63		struct amdgpu_connector_atom_dig *dig_connector =
  64			amdgpu_connector->con_priv;
  65
  66		/* if existing sink type was not DP no need to retrain */
  67		if (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT)
  68			return;
  69
  70		/* first get sink type as it may be reset after (un)plug */
  71		dig_connector->dp_sink_type = amdgpu_atombios_dp_get_sinktype(amdgpu_connector);
  72		/* don't do anything if sink is not display port, i.e.,
  73		 * passive dp->(dvi|hdmi) adaptor
  74		 */
  75		if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT &&
  76		    amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd) &&
  77		    amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) {
  78			/* Don't start link training before we have the DPCD */
  79			if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
  80				return;
  81
  82			/* Turn the connector off and back on immediately, which
  83			 * will trigger link training
  84			 */
  85			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
  86			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
  87		}
  88	}
  89}
  90
  91static void amdgpu_connector_property_change_mode(struct drm_encoder *encoder)
  92{
  93	struct drm_crtc *crtc = encoder->crtc;
  94
  95	if (crtc && crtc->enabled) {
  96		drm_crtc_helper_set_mode(crtc, &crtc->mode,
  97					 crtc->x, crtc->y, crtc->primary->fb);
  98	}
  99}
 100
 101int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector)
 102{
 103	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 104	struct amdgpu_connector_atom_dig *dig_connector;
 105	int bpc = 8;
 106	unsigned int mode_clock, max_tmds_clock;
 107
 108	switch (connector->connector_type) {
 109	case DRM_MODE_CONNECTOR_DVII:
 110	case DRM_MODE_CONNECTOR_HDMIB:
 111		if (amdgpu_connector->use_digital) {
 112			if (connector->display_info.is_hdmi) {
 113				if (connector->display_info.bpc)
 114					bpc = connector->display_info.bpc;
 115			}
 116		}
 117		break;
 118	case DRM_MODE_CONNECTOR_DVID:
 119	case DRM_MODE_CONNECTOR_HDMIA:
 120		if (connector->display_info.is_hdmi) {
 121			if (connector->display_info.bpc)
 122				bpc = connector->display_info.bpc;
 123		}
 124		break;
 125	case DRM_MODE_CONNECTOR_DisplayPort:
 126		dig_connector = amdgpu_connector->con_priv;
 127		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 128		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) ||
 129		    connector->display_info.is_hdmi) {
 130			if (connector->display_info.bpc)
 131				bpc = connector->display_info.bpc;
 132		}
 133		break;
 134	case DRM_MODE_CONNECTOR_eDP:
 135	case DRM_MODE_CONNECTOR_LVDS:
 136		if (connector->display_info.bpc)
 137			bpc = connector->display_info.bpc;
 138		else {
 139			const struct drm_connector_helper_funcs *connector_funcs =
 140				connector->helper_private;
 141			struct drm_encoder *encoder = connector_funcs->best_encoder(connector);
 142			struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 143			struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
 144
 145			if (dig->lcd_misc & ATOM_PANEL_MISC_V13_6BIT_PER_COLOR)
 146				bpc = 6;
 147			else if (dig->lcd_misc & ATOM_PANEL_MISC_V13_8BIT_PER_COLOR)
 148				bpc = 8;
 149		}
 150		break;
 151	}
 152
 153	if (connector->display_info.is_hdmi) {
 154		/*
 155		 * Pre DCE-8 hw can't handle > 12 bpc, and more than 12 bpc doesn't make
 156		 * much sense without support for > 12 bpc framebuffers. RGB 4:4:4 at
 157		 * 12 bpc is always supported on hdmi deep color sinks, as this is
 158		 * required by the HDMI-1.3 spec. Clamp to a safe 12 bpc maximum.
 159		 */
 160		if (bpc > 12) {
 161			DRM_DEBUG("%s: HDMI deep color %d bpc unsupported. Using 12 bpc.\n",
 162				  connector->name, bpc);
 163			bpc = 12;
 164		}
 165
 166		/* Any defined maximum tmds clock limit we must not exceed? */
 167		if (connector->display_info.max_tmds_clock > 0) {
 168			/* mode_clock is clock in kHz for mode to be modeset on this connector */
 169			mode_clock = amdgpu_connector->pixelclock_for_modeset;
 170
 171			/* Maximum allowable input clock in kHz */
 172			max_tmds_clock = connector->display_info.max_tmds_clock;
 173
 174			DRM_DEBUG("%s: hdmi mode dotclock %d kHz, max tmds input clock %d kHz.\n",
 175				  connector->name, mode_clock, max_tmds_clock);
 176
 177			/* Check if bpc is within clock limit. Try to degrade gracefully otherwise */
 178			if ((bpc == 12) && (mode_clock * 3/2 > max_tmds_clock)) {
 179				if ((connector->display_info.edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30) &&
 180				    (mode_clock * 5/4 <= max_tmds_clock))
 181					bpc = 10;
 182				else
 183					bpc = 8;
 184
 185				DRM_DEBUG("%s: HDMI deep color 12 bpc exceeds max tmds clock. Using %d bpc.\n",
 186					  connector->name, bpc);
 187			}
 188
 189			if ((bpc == 10) && (mode_clock * 5/4 > max_tmds_clock)) {
 190				bpc = 8;
 191				DRM_DEBUG("%s: HDMI deep color 10 bpc exceeds max tmds clock. Using %d bpc.\n",
 192					  connector->name, bpc);
 193			}
 194		} else if (bpc > 8) {
 195			/* max_tmds_clock missing, but hdmi spec mandates it for deep color. */
 196			DRM_DEBUG("%s: Required max tmds clock for HDMI deep color missing. Using 8 bpc.\n",
 197				  connector->name);
 198			bpc = 8;
 199		}
 200	}
 201
 202	if ((amdgpu_deep_color == 0) && (bpc > 8)) {
 203		DRM_DEBUG("%s: Deep color disabled. Set amdgpu module param deep_color=1 to enable.\n",
 204			  connector->name);
 205		bpc = 8;
 206	}
 207
 208	DRM_DEBUG("%s: Display bpc=%d, returned bpc=%d\n",
 209		  connector->name, connector->display_info.bpc, bpc);
 210
 211	return bpc;
 212}
 213
 214static void
 215amdgpu_connector_update_scratch_regs(struct drm_connector *connector,
 216				      enum drm_connector_status status)
 217{
 218	struct drm_encoder *best_encoder;
 219	struct drm_encoder *encoder;
 220	const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
 221	bool connected;
 222
 223	best_encoder = connector_funcs->best_encoder(connector);
 224
 225	drm_connector_for_each_possible_encoder(connector, encoder) {
 226		if ((encoder == best_encoder) && (status == connector_status_connected))
 227			connected = true;
 228		else
 229			connected = false;
 230
 231		amdgpu_atombios_encoder_set_bios_scratch_regs(connector, encoder, connected);
 232	}
 233}
 234
 235static struct drm_encoder *
 236amdgpu_connector_find_encoder(struct drm_connector *connector,
 237			       int encoder_type)
 238{
 239	struct drm_encoder *encoder;
 240
 241	drm_connector_for_each_possible_encoder(connector, encoder) {
 242		if (encoder->encoder_type == encoder_type)
 243			return encoder;
 244	}
 245
 246	return NULL;
 247}
 248
 249struct edid *amdgpu_connector_edid(struct drm_connector *connector)
 250{
 251	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 252	struct drm_property_blob *edid_blob = connector->edid_blob_ptr;
 253
 254	if (amdgpu_connector->edid) {
 255		return amdgpu_connector->edid;
 256	} else if (edid_blob) {
 257		struct edid *edid = kmemdup(edid_blob->data, edid_blob->length, GFP_KERNEL);
 258
 259		if (edid)
 260			amdgpu_connector->edid = edid;
 261	}
 262	return amdgpu_connector->edid;
 263}
 264
 265static struct edid *
 266amdgpu_connector_get_hardcoded_edid(struct amdgpu_device *adev)
 267{
 268	if (adev->mode_info.bios_hardcoded_edid) {
 269		return kmemdup((unsigned char *)adev->mode_info.bios_hardcoded_edid,
 270			       adev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL);
 271	}
 272	return NULL;
 273}
 274
 275static void amdgpu_connector_get_edid(struct drm_connector *connector)
 276{
 277	struct drm_device *dev = connector->dev;
 278	struct amdgpu_device *adev = drm_to_adev(dev);
 279	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 280
 281	if (amdgpu_connector->edid)
 282		return;
 283
 284	/* on hw with routers, select right port */
 285	if (amdgpu_connector->router.ddc_valid)
 286		amdgpu_i2c_router_select_ddc_port(amdgpu_connector);
 287
 288	if ((amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) !=
 289	     ENCODER_OBJECT_ID_NONE) &&
 290	    amdgpu_connector->ddc_bus->has_aux) {
 291		amdgpu_connector->edid = drm_get_edid(connector,
 292						      &amdgpu_connector->ddc_bus->aux.ddc);
 293	} else if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
 294		   (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) {
 295		struct amdgpu_connector_atom_dig *dig = amdgpu_connector->con_priv;
 296
 297		if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
 298		     dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) &&
 299		    amdgpu_connector->ddc_bus->has_aux)
 300			amdgpu_connector->edid = drm_get_edid(connector,
 301							      &amdgpu_connector->ddc_bus->aux.ddc);
 302		else if (amdgpu_connector->ddc_bus)
 303			amdgpu_connector->edid = drm_get_edid(connector,
 304							      &amdgpu_connector->ddc_bus->adapter);
 305	} else if (amdgpu_connector->ddc_bus) {
 306		amdgpu_connector->edid = drm_get_edid(connector,
 307						      &amdgpu_connector->ddc_bus->adapter);
 308	}
 309
 310	if (!amdgpu_connector->edid) {
 311		/* some laptops provide a hardcoded edid in rom for LCDs */
 312		if (((connector->connector_type == DRM_MODE_CONNECTOR_LVDS) ||
 313		     (connector->connector_type == DRM_MODE_CONNECTOR_eDP))) {
 314			amdgpu_connector->edid = amdgpu_connector_get_hardcoded_edid(adev);
 315			drm_connector_update_edid_property(connector, amdgpu_connector->edid);
 316		}
 317	}
 318}
 319
 320static void amdgpu_connector_free_edid(struct drm_connector *connector)
 321{
 322	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 323
 324	kfree(amdgpu_connector->edid);
 325	amdgpu_connector->edid = NULL;
 326}
 327
 328static int amdgpu_connector_ddc_get_modes(struct drm_connector *connector)
 329{
 330	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 331	int ret;
 332
 333	if (amdgpu_connector->edid) {
 334		drm_connector_update_edid_property(connector, amdgpu_connector->edid);
 335		ret = drm_add_edid_modes(connector, amdgpu_connector->edid);
 336		return ret;
 337	}
 338	drm_connector_update_edid_property(connector, NULL);
 339	return 0;
 340}
 341
 342static struct drm_encoder *
 343amdgpu_connector_best_single_encoder(struct drm_connector *connector)
 344{
 345	struct drm_encoder *encoder;
 346
 347	/* pick the first one */
 348	drm_connector_for_each_possible_encoder(connector, encoder)
 349		return encoder;
 350
 351	return NULL;
 352}
 353
 354static void amdgpu_get_native_mode(struct drm_connector *connector)
 355{
 356	struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
 357	struct amdgpu_encoder *amdgpu_encoder;
 358
 359	if (encoder == NULL)
 360		return;
 361
 362	amdgpu_encoder = to_amdgpu_encoder(encoder);
 363
 364	if (!list_empty(&connector->probed_modes)) {
 365		struct drm_display_mode *preferred_mode =
 366			list_first_entry(&connector->probed_modes,
 367					 struct drm_display_mode, head);
 368
 369		amdgpu_encoder->native_mode = *preferred_mode;
 370	} else {
 371		amdgpu_encoder->native_mode.clock = 0;
 372	}
 373}
 374
 375static struct drm_display_mode *
 376amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder)
 377{
 378	struct drm_device *dev = encoder->dev;
 379	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 380	struct drm_display_mode *mode = NULL;
 381	struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 382
 383	if (native_mode->hdisplay != 0 &&
 384	    native_mode->vdisplay != 0 &&
 385	    native_mode->clock != 0) {
 386		mode = drm_mode_duplicate(dev, native_mode);
 387		if (!mode)
 388			return NULL;
 389
 390		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
 391		drm_mode_set_name(mode);
 392
 393		DRM_DEBUG_KMS("Adding native panel mode %s\n", mode->name);
 394	} else if (native_mode->hdisplay != 0 &&
 395		   native_mode->vdisplay != 0) {
 396		/* mac laptops without an edid */
 397		/* Note that this is not necessarily the exact panel mode,
 398		 * but an approximation based on the cvt formula.  For these
 399		 * systems we should ideally read the mode info out of the
 400		 * registers or add a mode table, but this works and is much
 401		 * simpler.
 402		 */
 403		mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
 404		if (!mode)
 405			return NULL;
 406
 407		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
 408		DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name);
 409	}
 410	return mode;
 411}
 412
 413static void amdgpu_connector_add_common_modes(struct drm_encoder *encoder,
 414					       struct drm_connector *connector)
 415{
 416	struct drm_device *dev = encoder->dev;
 417	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 418	struct drm_display_mode *mode = NULL;
 419	struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 420	int i;
 421	static const struct mode_size {
 422		int w;
 423		int h;
 424	} common_modes[17] = {
 425		{ 640,  480},
 426		{ 720,  480},
 427		{ 800,  600},
 428		{ 848,  480},
 429		{1024,  768},
 430		{1152,  768},
 431		{1280,  720},
 432		{1280,  800},
 433		{1280,  854},
 434		{1280,  960},
 435		{1280, 1024},
 436		{1440,  900},
 437		{1400, 1050},
 438		{1680, 1050},
 439		{1600, 1200},
 440		{1920, 1080},
 441		{1920, 1200}
 442	};
 443
 444	for (i = 0; i < 17; i++) {
 445		if (amdgpu_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
 446			if (common_modes[i].w > 1024 ||
 447			    common_modes[i].h > 768)
 448				continue;
 449		}
 450		if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
 451			if (common_modes[i].w > native_mode->hdisplay ||
 452			    common_modes[i].h > native_mode->vdisplay ||
 453			    (common_modes[i].w == native_mode->hdisplay &&
 454			     common_modes[i].h == native_mode->vdisplay))
 455				continue;
 456		}
 457		if (common_modes[i].w < 320 || common_modes[i].h < 200)
 458			continue;
 459
 460		mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);
 
 
 
 461		drm_mode_probed_add(connector, mode);
 462	}
 463}
 464
 465static int amdgpu_connector_set_property(struct drm_connector *connector,
 466					  struct drm_property *property,
 467					  uint64_t val)
 468{
 469	struct drm_device *dev = connector->dev;
 470	struct amdgpu_device *adev = drm_to_adev(dev);
 471	struct drm_encoder *encoder;
 472	struct amdgpu_encoder *amdgpu_encoder;
 473
 474	if (property == adev->mode_info.coherent_mode_property) {
 475		struct amdgpu_encoder_atom_dig *dig;
 476		bool new_coherent_mode;
 477
 478		/* need to find digital encoder on connector */
 479		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 480		if (!encoder)
 481			return 0;
 482
 483		amdgpu_encoder = to_amdgpu_encoder(encoder);
 484
 485		if (!amdgpu_encoder->enc_priv)
 486			return 0;
 487
 488		dig = amdgpu_encoder->enc_priv;
 489		new_coherent_mode = val ? true : false;
 490		if (dig->coherent_mode != new_coherent_mode) {
 491			dig->coherent_mode = new_coherent_mode;
 492			amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 493		}
 494	}
 495
 496	if (property == adev->mode_info.audio_property) {
 497		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 498		/* need to find digital encoder on connector */
 499		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 500		if (!encoder)
 501			return 0;
 502
 503		amdgpu_encoder = to_amdgpu_encoder(encoder);
 504
 505		if (amdgpu_connector->audio != val) {
 506			amdgpu_connector->audio = val;
 507			amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 508		}
 509	}
 510
 511	if (property == adev->mode_info.dither_property) {
 512		struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 513		/* need to find digital encoder on connector */
 514		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 515		if (!encoder)
 516			return 0;
 517
 518		amdgpu_encoder = to_amdgpu_encoder(encoder);
 519
 520		if (amdgpu_connector->dither != val) {
 521			amdgpu_connector->dither = val;
 522			amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 523		}
 524	}
 525
 526	if (property == adev->mode_info.underscan_property) {
 527		/* need to find digital encoder on connector */
 528		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 529		if (!encoder)
 530			return 0;
 531
 532		amdgpu_encoder = to_amdgpu_encoder(encoder);
 533
 534		if (amdgpu_encoder->underscan_type != val) {
 535			amdgpu_encoder->underscan_type = val;
 536			amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 537		}
 538	}
 539
 540	if (property == adev->mode_info.underscan_hborder_property) {
 541		/* need to find digital encoder on connector */
 542		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 543		if (!encoder)
 544			return 0;
 545
 546		amdgpu_encoder = to_amdgpu_encoder(encoder);
 547
 548		if (amdgpu_encoder->underscan_hborder != val) {
 549			amdgpu_encoder->underscan_hborder = val;
 550			amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 551		}
 552	}
 553
 554	if (property == adev->mode_info.underscan_vborder_property) {
 555		/* need to find digital encoder on connector */
 556		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 557		if (!encoder)
 558			return 0;
 559
 560		amdgpu_encoder = to_amdgpu_encoder(encoder);
 561
 562		if (amdgpu_encoder->underscan_vborder != val) {
 563			amdgpu_encoder->underscan_vborder = val;
 564			amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 565		}
 566	}
 567
 568	if (property == adev->mode_info.load_detect_property) {
 569		struct amdgpu_connector *amdgpu_connector =
 570			to_amdgpu_connector(connector);
 571
 572		if (val == 0)
 573			amdgpu_connector->dac_load_detect = false;
 574		else
 575			amdgpu_connector->dac_load_detect = true;
 576	}
 577
 578	if (property == dev->mode_config.scaling_mode_property) {
 579		enum amdgpu_rmx_type rmx_type;
 580
 581		if (connector->encoder) {
 582			amdgpu_encoder = to_amdgpu_encoder(connector->encoder);
 583		} else {
 584			const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
 585
 586			amdgpu_encoder = to_amdgpu_encoder(connector_funcs->best_encoder(connector));
 587		}
 588
 589		switch (val) {
 590		default:
 591		case DRM_MODE_SCALE_NONE:
 592			rmx_type = RMX_OFF;
 593			break;
 594		case DRM_MODE_SCALE_CENTER:
 595			rmx_type = RMX_CENTER;
 596			break;
 597		case DRM_MODE_SCALE_ASPECT:
 598			rmx_type = RMX_ASPECT;
 599			break;
 600		case DRM_MODE_SCALE_FULLSCREEN:
 601			rmx_type = RMX_FULL;
 602			break;
 603		}
 604
 605		if (amdgpu_encoder->rmx_type == rmx_type)
 606			return 0;
 607
 608		if ((rmx_type != DRM_MODE_SCALE_NONE) &&
 609		    (amdgpu_encoder->native_mode.clock == 0))
 610			return 0;
 611
 612		amdgpu_encoder->rmx_type = rmx_type;
 613
 614		amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 615	}
 616
 617	return 0;
 618}
 619
 620static void
 621amdgpu_connector_fixup_lcd_native_mode(struct drm_encoder *encoder,
 622					struct drm_connector *connector)
 623{
 624	struct amdgpu_encoder *amdgpu_encoder =	to_amdgpu_encoder(encoder);
 625	struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 626	struct drm_display_mode *t, *mode;
 627
 628	/* If the EDID preferred mode doesn't match the native mode, use it */
 629	list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
 630		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
 631			if (mode->hdisplay != native_mode->hdisplay ||
 632			    mode->vdisplay != native_mode->vdisplay)
 633				drm_mode_copy(native_mode, mode);
 634		}
 635	}
 636
 637	/* Try to get native mode details from EDID if necessary */
 638	if (!native_mode->clock) {
 639		list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
 640			if (mode->hdisplay == native_mode->hdisplay &&
 641			    mode->vdisplay == native_mode->vdisplay) {
 642				drm_mode_copy(native_mode, mode);
 643				drm_mode_set_crtcinfo(native_mode, CRTC_INTERLACE_HALVE_V);
 644				DRM_DEBUG_KMS("Determined LVDS native mode details from EDID\n");
 645				break;
 646			}
 647		}
 648	}
 649
 650	if (!native_mode->clock) {
 651		DRM_DEBUG_KMS("No LVDS native mode details, disabling RMX\n");
 652		amdgpu_encoder->rmx_type = RMX_OFF;
 653	}
 654}
 655
 656static int amdgpu_connector_lvds_get_modes(struct drm_connector *connector)
 657{
 658	struct drm_encoder *encoder;
 659	int ret = 0;
 660	struct drm_display_mode *mode;
 661
 662	amdgpu_connector_get_edid(connector);
 663	ret = amdgpu_connector_ddc_get_modes(connector);
 664	if (ret > 0) {
 665		encoder = amdgpu_connector_best_single_encoder(connector);
 666		if (encoder) {
 667			amdgpu_connector_fixup_lcd_native_mode(encoder, connector);
 668			/* add scaled modes */
 669			amdgpu_connector_add_common_modes(encoder, connector);
 670		}
 671		return ret;
 672	}
 673
 674	encoder = amdgpu_connector_best_single_encoder(connector);
 675	if (!encoder)
 676		return 0;
 677
 678	/* we have no EDID modes */
 679	mode = amdgpu_connector_lcd_native_mode(encoder);
 680	if (mode) {
 681		ret = 1;
 682		drm_mode_probed_add(connector, mode);
 683		/* add the width/height from vbios tables if available */
 684		connector->display_info.width_mm = mode->width_mm;
 685		connector->display_info.height_mm = mode->height_mm;
 686		/* add scaled modes */
 687		amdgpu_connector_add_common_modes(encoder, connector);
 688	}
 689
 690	return ret;
 691}
 692
 693static enum drm_mode_status amdgpu_connector_lvds_mode_valid(struct drm_connector *connector,
 694					     struct drm_display_mode *mode)
 695{
 696	struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
 697
 698	if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
 699		return MODE_PANEL;
 700
 701	if (encoder) {
 702		struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 703		struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 704
 705		/* AVIVO hardware supports downscaling modes larger than the panel
 706		 * to the panel size, but I'm not sure this is desirable.
 707		 */
 708		if ((mode->hdisplay > native_mode->hdisplay) ||
 709		    (mode->vdisplay > native_mode->vdisplay))
 710			return MODE_PANEL;
 711
 712		/* if scaling is disabled, block non-native modes */
 713		if (amdgpu_encoder->rmx_type == RMX_OFF) {
 714			if ((mode->hdisplay != native_mode->hdisplay) ||
 715			    (mode->vdisplay != native_mode->vdisplay))
 716				return MODE_PANEL;
 717		}
 718	}
 719
 720	return MODE_OK;
 721}
 722
 723static enum drm_connector_status
 724amdgpu_connector_lvds_detect(struct drm_connector *connector, bool force)
 725{
 726	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 727	struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
 728	enum drm_connector_status ret = connector_status_disconnected;
 729	int r;
 730
 731	if (!drm_kms_helper_is_poll_worker()) {
 732		r = pm_runtime_get_sync(connector->dev->dev);
 733		if (r < 0) {
 734			pm_runtime_put_autosuspend(connector->dev->dev);
 735			return connector_status_disconnected;
 736		}
 737	}
 738
 739	if (encoder) {
 740		struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 741		struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 742
 743		/* check if panel is valid */
 744		if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
 745			ret = connector_status_connected;
 746
 747	}
 748
 749	/* check for edid as well */
 750	amdgpu_connector_get_edid(connector);
 751	if (amdgpu_connector->edid)
 752		ret = connector_status_connected;
 753	/* check acpi lid status ??? */
 754
 755	amdgpu_connector_update_scratch_regs(connector, ret);
 756
 757	if (!drm_kms_helper_is_poll_worker()) {
 758		pm_runtime_mark_last_busy(connector->dev->dev);
 759		pm_runtime_put_autosuspend(connector->dev->dev);
 760	}
 761
 762	return ret;
 763}
 764
 765static void amdgpu_connector_unregister(struct drm_connector *connector)
 766{
 767	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 768
 769	if (amdgpu_connector->ddc_bus && amdgpu_connector->ddc_bus->has_aux) {
 770		drm_dp_aux_unregister(&amdgpu_connector->ddc_bus->aux);
 771		amdgpu_connector->ddc_bus->has_aux = false;
 772	}
 773}
 774
 775static void amdgpu_connector_destroy(struct drm_connector *connector)
 776{
 777	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 778
 779	amdgpu_connector_free_edid(connector);
 780	kfree(amdgpu_connector->con_priv);
 781	drm_connector_unregister(connector);
 782	drm_connector_cleanup(connector);
 783	kfree(connector);
 784}
 785
 786static int amdgpu_connector_set_lcd_property(struct drm_connector *connector,
 787					      struct drm_property *property,
 788					      uint64_t value)
 789{
 790	struct drm_device *dev = connector->dev;
 791	struct amdgpu_encoder *amdgpu_encoder;
 792	enum amdgpu_rmx_type rmx_type;
 793
 794	DRM_DEBUG_KMS("\n");
 795	if (property != dev->mode_config.scaling_mode_property)
 796		return 0;
 797
 798	if (connector->encoder)
 799		amdgpu_encoder = to_amdgpu_encoder(connector->encoder);
 800	else {
 801		const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
 802
 803		amdgpu_encoder = to_amdgpu_encoder(connector_funcs->best_encoder(connector));
 804	}
 805
 806	switch (value) {
 807	case DRM_MODE_SCALE_NONE:
 808		rmx_type = RMX_OFF;
 809		break;
 810	case DRM_MODE_SCALE_CENTER:
 811		rmx_type = RMX_CENTER;
 812		break;
 813	case DRM_MODE_SCALE_ASPECT:
 814		rmx_type = RMX_ASPECT;
 815		break;
 816	default:
 817	case DRM_MODE_SCALE_FULLSCREEN:
 818		rmx_type = RMX_FULL;
 819		break;
 820	}
 821
 822	if (amdgpu_encoder->rmx_type == rmx_type)
 823		return 0;
 824
 825	amdgpu_encoder->rmx_type = rmx_type;
 826
 827	amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 828	return 0;
 829}
 830
 831
 832static const struct drm_connector_helper_funcs amdgpu_connector_lvds_helper_funcs = {
 833	.get_modes = amdgpu_connector_lvds_get_modes,
 834	.mode_valid = amdgpu_connector_lvds_mode_valid,
 835	.best_encoder = amdgpu_connector_best_single_encoder,
 836};
 837
 838static const struct drm_connector_funcs amdgpu_connector_lvds_funcs = {
 839	.dpms = drm_helper_connector_dpms,
 840	.detect = amdgpu_connector_lvds_detect,
 841	.fill_modes = drm_helper_probe_single_connector_modes,
 842	.early_unregister = amdgpu_connector_unregister,
 843	.destroy = amdgpu_connector_destroy,
 844	.set_property = amdgpu_connector_set_lcd_property,
 845};
 846
 847static int amdgpu_connector_vga_get_modes(struct drm_connector *connector)
 848{
 849	int ret;
 850
 851	amdgpu_connector_get_edid(connector);
 852	ret = amdgpu_connector_ddc_get_modes(connector);
 853	amdgpu_get_native_mode(connector);
 854
 855	return ret;
 856}
 857
 858static enum drm_mode_status amdgpu_connector_vga_mode_valid(struct drm_connector *connector,
 859					    struct drm_display_mode *mode)
 860{
 861	struct drm_device *dev = connector->dev;
 862	struct amdgpu_device *adev = drm_to_adev(dev);
 863
 864	/* XXX check mode bandwidth */
 865
 866	if ((mode->clock / 10) > adev->clock.max_pixel_clock)
 867		return MODE_CLOCK_HIGH;
 868
 869	return MODE_OK;
 870}
 871
 872static enum drm_connector_status
 873amdgpu_connector_vga_detect(struct drm_connector *connector, bool force)
 874{
 875	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 876	struct drm_encoder *encoder;
 877	const struct drm_encoder_helper_funcs *encoder_funcs;
 878	bool dret = false;
 879	enum drm_connector_status ret = connector_status_disconnected;
 880	int r;
 881
 882	if (!drm_kms_helper_is_poll_worker()) {
 883		r = pm_runtime_get_sync(connector->dev->dev);
 884		if (r < 0) {
 885			pm_runtime_put_autosuspend(connector->dev->dev);
 886			return connector_status_disconnected;
 887		}
 888	}
 889
 890	encoder = amdgpu_connector_best_single_encoder(connector);
 891	if (!encoder)
 892		ret = connector_status_disconnected;
 893
 894	if (amdgpu_connector->ddc_bus)
 895		dret = amdgpu_display_ddc_probe(amdgpu_connector, false);
 896	if (dret) {
 897		amdgpu_connector->detected_by_load = false;
 898		amdgpu_connector_free_edid(connector);
 899		amdgpu_connector_get_edid(connector);
 900
 901		if (!amdgpu_connector->edid) {
 902			DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
 903					connector->name);
 904			ret = connector_status_connected;
 905		} else {
 906			amdgpu_connector->use_digital =
 907				!!(amdgpu_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
 908
 909			/* some oems have boards with separate digital and analog connectors
 910			 * with a shared ddc line (often vga + hdmi)
 911			 */
 912			if (amdgpu_connector->use_digital && amdgpu_connector->shared_ddc) {
 913				amdgpu_connector_free_edid(connector);
 914				ret = connector_status_disconnected;
 915			} else {
 916				ret = connector_status_connected;
 917			}
 918		}
 919	} else {
 920
 921		/* if we aren't forcing don't do destructive polling */
 922		if (!force) {
 923			/* only return the previous status if we last
 924			 * detected a monitor via load.
 925			 */
 926			if (amdgpu_connector->detected_by_load)
 927				ret = connector->status;
 928			goto out;
 929		}
 930
 931		if (amdgpu_connector->dac_load_detect && encoder) {
 932			encoder_funcs = encoder->helper_private;
 933			ret = encoder_funcs->detect(encoder, connector);
 934			if (ret != connector_status_disconnected)
 935				amdgpu_connector->detected_by_load = true;
 936		}
 937	}
 938
 939	amdgpu_connector_update_scratch_regs(connector, ret);
 940
 941out:
 942	if (!drm_kms_helper_is_poll_worker()) {
 943		pm_runtime_mark_last_busy(connector->dev->dev);
 944		pm_runtime_put_autosuspend(connector->dev->dev);
 945	}
 946
 947	return ret;
 948}
 949
 950static const struct drm_connector_helper_funcs amdgpu_connector_vga_helper_funcs = {
 951	.get_modes = amdgpu_connector_vga_get_modes,
 952	.mode_valid = amdgpu_connector_vga_mode_valid,
 953	.best_encoder = amdgpu_connector_best_single_encoder,
 954};
 955
 956static const struct drm_connector_funcs amdgpu_connector_vga_funcs = {
 957	.dpms = drm_helper_connector_dpms,
 958	.detect = amdgpu_connector_vga_detect,
 959	.fill_modes = drm_helper_probe_single_connector_modes,
 960	.early_unregister = amdgpu_connector_unregister,
 961	.destroy = amdgpu_connector_destroy,
 962	.set_property = amdgpu_connector_set_property,
 963};
 964
 965static bool
 966amdgpu_connector_check_hpd_status_unchanged(struct drm_connector *connector)
 967{
 968	struct drm_device *dev = connector->dev;
 969	struct amdgpu_device *adev = drm_to_adev(dev);
 970	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 971	enum drm_connector_status status;
 972
 973	if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE) {
 974		if (amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd))
 975			status = connector_status_connected;
 976		else
 977			status = connector_status_disconnected;
 978		if (connector->status == status)
 979			return true;
 980	}
 981
 982	return false;
 983}
 984
 985static void amdgpu_connector_shared_ddc(enum drm_connector_status *status,
 986					struct drm_connector *connector,
 987					struct amdgpu_connector *amdgpu_connector)
 988{
 989	struct drm_connector *list_connector;
 990	struct drm_connector_list_iter iter;
 991	struct amdgpu_connector *list_amdgpu_connector;
 992	struct drm_device *dev = connector->dev;
 993	struct amdgpu_device *adev = drm_to_adev(dev);
 994
 995	if (amdgpu_connector->shared_ddc && *status == connector_status_connected) {
 996		drm_connector_list_iter_begin(dev, &iter);
 997		drm_for_each_connector_iter(list_connector,
 998					    &iter) {
 999			if (connector == list_connector)
1000				continue;
1001			list_amdgpu_connector = to_amdgpu_connector(list_connector);
1002			if (list_amdgpu_connector->shared_ddc &&
1003			    list_amdgpu_connector->ddc_bus->rec.i2c_id ==
1004			     amdgpu_connector->ddc_bus->rec.i2c_id) {
1005				/* cases where both connectors are digital */
1006				if (list_connector->connector_type != DRM_MODE_CONNECTOR_VGA) {
1007					/* hpd is our only option in this case */
1008					if (!amdgpu_display_hpd_sense(adev,
1009								      amdgpu_connector->hpd.hpd)) {
1010						amdgpu_connector_free_edid(connector);
1011						*status = connector_status_disconnected;
1012					}
1013				}
1014			}
1015		}
1016		drm_connector_list_iter_end(&iter);
1017	}
1018}
1019
1020/*
1021 * DVI is complicated
1022 * Do a DDC probe, if DDC probe passes, get the full EDID so
1023 * we can do analog/digital monitor detection at this point.
1024 * If the monitor is an analog monitor or we got no DDC,
1025 * we need to find the DAC encoder object for this connector.
1026 * If we got no DDC, we do load detection on the DAC encoder object.
1027 * If we got analog DDC or load detection passes on the DAC encoder
1028 * we have to check if this analog encoder is shared with anyone else (TV)
1029 * if its shared we have to set the other connector to disconnected.
1030 */
1031static enum drm_connector_status
1032amdgpu_connector_dvi_detect(struct drm_connector *connector, bool force)
1033{
1034	struct drm_device *dev = connector->dev;
1035	struct amdgpu_device *adev = drm_to_adev(dev);
1036	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1037	const struct drm_encoder_helper_funcs *encoder_funcs;
1038	int r;
1039	enum drm_connector_status ret = connector_status_disconnected;
1040	bool dret = false, broken_edid = false;
1041
1042	if (!drm_kms_helper_is_poll_worker()) {
1043		r = pm_runtime_get_sync(connector->dev->dev);
1044		if (r < 0) {
1045			pm_runtime_put_autosuspend(connector->dev->dev);
1046			return connector_status_disconnected;
1047		}
1048	}
1049
1050	if (amdgpu_connector->detected_hpd_without_ddc) {
1051		force = true;
1052		amdgpu_connector->detected_hpd_without_ddc = false;
1053	}
1054
1055	if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
1056		ret = connector->status;
1057		goto exit;
1058	}
1059
1060	if (amdgpu_connector->ddc_bus) {
1061		dret = amdgpu_display_ddc_probe(amdgpu_connector, false);
1062
1063		/* Sometimes the pins required for the DDC probe on DVI
1064		 * connectors don't make contact at the same time that the ones
1065		 * for HPD do. If the DDC probe fails even though we had an HPD
1066		 * signal, try again later
1067		 */
1068		if (!dret && !force &&
1069		    amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) {
1070			DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n");
1071			amdgpu_connector->detected_hpd_without_ddc = true;
1072			schedule_delayed_work(&adev->hotplug_work,
1073					      msecs_to_jiffies(1000));
1074			goto exit;
1075		}
1076	}
1077	if (dret) {
1078		amdgpu_connector->detected_by_load = false;
1079		amdgpu_connector_free_edid(connector);
1080		amdgpu_connector_get_edid(connector);
1081
1082		if (!amdgpu_connector->edid) {
1083			DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
1084					connector->name);
1085			ret = connector_status_connected;
1086			broken_edid = true; /* defer use_digital to later */
1087		} else {
1088			amdgpu_connector->use_digital =
1089				!!(amdgpu_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
1090
1091			/* some oems have boards with separate digital and analog connectors
1092			 * with a shared ddc line (often vga + hdmi)
1093			 */
1094			if ((!amdgpu_connector->use_digital) && amdgpu_connector->shared_ddc) {
1095				amdgpu_connector_free_edid(connector);
1096				ret = connector_status_disconnected;
1097			} else {
1098				ret = connector_status_connected;
1099			}
1100
1101			/* This gets complicated.  We have boards with VGA + HDMI with a
1102			 * shared DDC line and we have boards with DVI-D + HDMI with a shared
1103			 * DDC line.  The latter is more complex because with DVI<->HDMI adapters
1104			 * you don't really know what's connected to which port as both are digital.
1105			 */
1106			amdgpu_connector_shared_ddc(&ret, connector, amdgpu_connector);
1107		}
1108	}
1109
1110	if ((ret == connector_status_connected) && (amdgpu_connector->use_digital == true))
1111		goto out;
1112
1113	/* DVI-D and HDMI-A are digital only */
1114	if ((connector->connector_type == DRM_MODE_CONNECTOR_DVID) ||
1115	    (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA))
1116		goto out;
1117
1118	/* if we aren't forcing don't do destructive polling */
1119	if (!force) {
1120		/* only return the previous status if we last
1121		 * detected a monitor via load.
1122		 */
1123		if (amdgpu_connector->detected_by_load)
1124			ret = connector->status;
1125		goto out;
1126	}
1127
1128	/* find analog encoder */
1129	if (amdgpu_connector->dac_load_detect) {
1130		struct drm_encoder *encoder;
1131
1132		drm_connector_for_each_possible_encoder(connector, encoder) {
1133			if (encoder->encoder_type != DRM_MODE_ENCODER_DAC &&
1134			    encoder->encoder_type != DRM_MODE_ENCODER_TVDAC)
1135				continue;
1136
1137			encoder_funcs = encoder->helper_private;
1138			if (encoder_funcs->detect) {
1139				if (!broken_edid) {
1140					if (ret != connector_status_connected) {
1141						/* deal with analog monitors without DDC */
1142						ret = encoder_funcs->detect(encoder, connector);
1143						if (ret == connector_status_connected) {
1144							amdgpu_connector->use_digital = false;
1145						}
1146						if (ret != connector_status_disconnected)
1147							amdgpu_connector->detected_by_load = true;
1148					}
1149				} else {
1150					enum drm_connector_status lret;
1151					/* assume digital unless load detected otherwise */
1152					amdgpu_connector->use_digital = true;
1153					lret = encoder_funcs->detect(encoder, connector);
1154					DRM_DEBUG_KMS("load_detect %x returned: %x\n",
1155						      encoder->encoder_type, lret);
1156					if (lret == connector_status_connected)
1157						amdgpu_connector->use_digital = false;
1158				}
1159				break;
1160			}
1161		}
1162	}
1163
1164out:
1165	/* updated in get modes as well since we need to know if it's analog or digital */
1166	amdgpu_connector_update_scratch_regs(connector, ret);
1167
1168exit:
1169	if (!drm_kms_helper_is_poll_worker()) {
1170		pm_runtime_mark_last_busy(connector->dev->dev);
1171		pm_runtime_put_autosuspend(connector->dev->dev);
1172	}
1173
1174	return ret;
1175}
1176
1177/* okay need to be smart in here about which encoder to pick */
1178static struct drm_encoder *
1179amdgpu_connector_dvi_encoder(struct drm_connector *connector)
1180{
1181	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1182	struct drm_encoder *encoder;
1183
1184	drm_connector_for_each_possible_encoder(connector, encoder) {
1185		if (amdgpu_connector->use_digital == true) {
1186			if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
1187				return encoder;
1188		} else {
1189			if (encoder->encoder_type == DRM_MODE_ENCODER_DAC ||
1190			    encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
1191				return encoder;
1192		}
1193	}
1194
1195	/* see if we have a default encoder  TODO */
1196
1197	/* then check use digitial */
1198	/* pick the first one */
1199	drm_connector_for_each_possible_encoder(connector, encoder)
1200		return encoder;
1201
1202	return NULL;
1203}
1204
1205static void amdgpu_connector_dvi_force(struct drm_connector *connector)
1206{
1207	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1208
1209	if (connector->force == DRM_FORCE_ON)
1210		amdgpu_connector->use_digital = false;
1211	if (connector->force == DRM_FORCE_ON_DIGITAL)
1212		amdgpu_connector->use_digital = true;
1213}
1214
1215static enum drm_mode_status amdgpu_connector_dvi_mode_valid(struct drm_connector *connector,
1216					    struct drm_display_mode *mode)
1217{
1218	struct drm_device *dev = connector->dev;
1219	struct amdgpu_device *adev = drm_to_adev(dev);
1220	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1221
1222	/* XXX check mode bandwidth */
1223
1224	if (amdgpu_connector->use_digital && (mode->clock > 165000)) {
1225		if ((amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) ||
1226		    (amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
1227		    (amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B)) {
1228			return MODE_OK;
1229		} else if (connector->display_info.is_hdmi) {
1230			/* HDMI 1.3+ supports max clock of 340 Mhz */
1231			if (mode->clock > 340000)
1232				return MODE_CLOCK_HIGH;
1233			else
1234				return MODE_OK;
1235		} else {
1236			return MODE_CLOCK_HIGH;
1237		}
1238	}
1239
1240	/* check against the max pixel clock */
1241	if ((mode->clock / 10) > adev->clock.max_pixel_clock)
1242		return MODE_CLOCK_HIGH;
1243
1244	return MODE_OK;
1245}
1246
1247static const struct drm_connector_helper_funcs amdgpu_connector_dvi_helper_funcs = {
1248	.get_modes = amdgpu_connector_vga_get_modes,
1249	.mode_valid = amdgpu_connector_dvi_mode_valid,
1250	.best_encoder = amdgpu_connector_dvi_encoder,
1251};
1252
1253static const struct drm_connector_funcs amdgpu_connector_dvi_funcs = {
1254	.dpms = drm_helper_connector_dpms,
1255	.detect = amdgpu_connector_dvi_detect,
1256	.fill_modes = drm_helper_probe_single_connector_modes,
1257	.set_property = amdgpu_connector_set_property,
1258	.early_unregister = amdgpu_connector_unregister,
1259	.destroy = amdgpu_connector_destroy,
1260	.force = amdgpu_connector_dvi_force,
1261};
1262
1263static int amdgpu_connector_dp_get_modes(struct drm_connector *connector)
1264{
1265	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1266	struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv;
1267	struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
1268	int ret;
1269
1270	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1271	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1272		struct drm_display_mode *mode;
1273
1274		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
1275			if (!amdgpu_dig_connector->edp_on)
1276				amdgpu_atombios_encoder_set_edp_panel_power(connector,
1277								     ATOM_TRANSMITTER_ACTION_POWER_ON);
1278			amdgpu_connector_get_edid(connector);
1279			ret = amdgpu_connector_ddc_get_modes(connector);
1280			if (!amdgpu_dig_connector->edp_on)
1281				amdgpu_atombios_encoder_set_edp_panel_power(connector,
1282								     ATOM_TRANSMITTER_ACTION_POWER_OFF);
1283		} else {
1284			/* need to setup ddc on the bridge */
1285			if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1286			    ENCODER_OBJECT_ID_NONE) {
1287				if (encoder)
1288					amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder);
1289			}
1290			amdgpu_connector_get_edid(connector);
1291			ret = amdgpu_connector_ddc_get_modes(connector);
1292		}
1293
1294		if (ret > 0) {
1295			if (encoder) {
1296				amdgpu_connector_fixup_lcd_native_mode(encoder, connector);
1297				/* add scaled modes */
1298				amdgpu_connector_add_common_modes(encoder, connector);
1299			}
1300			return ret;
1301		}
1302
1303		if (!encoder)
1304			return 0;
1305
1306		/* we have no EDID modes */
1307		mode = amdgpu_connector_lcd_native_mode(encoder);
1308		if (mode) {
1309			ret = 1;
1310			drm_mode_probed_add(connector, mode);
1311			/* add the width/height from vbios tables if available */
1312			connector->display_info.width_mm = mode->width_mm;
1313			connector->display_info.height_mm = mode->height_mm;
1314			/* add scaled modes */
1315			amdgpu_connector_add_common_modes(encoder, connector);
1316		}
1317	} else {
1318		/* need to setup ddc on the bridge */
1319		if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1320			ENCODER_OBJECT_ID_NONE) {
1321			if (encoder)
1322				amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder);
1323		}
1324		amdgpu_connector_get_edid(connector);
1325		ret = amdgpu_connector_ddc_get_modes(connector);
1326
1327		amdgpu_get_native_mode(connector);
1328	}
1329
1330	return ret;
1331}
1332
1333u16 amdgpu_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector)
1334{
1335	struct drm_encoder *encoder;
1336	struct amdgpu_encoder *amdgpu_encoder;
1337
1338	drm_connector_for_each_possible_encoder(connector, encoder) {
1339		amdgpu_encoder = to_amdgpu_encoder(encoder);
1340
1341		switch (amdgpu_encoder->encoder_id) {
1342		case ENCODER_OBJECT_ID_TRAVIS:
1343		case ENCODER_OBJECT_ID_NUTMEG:
1344			return amdgpu_encoder->encoder_id;
1345		default:
1346			break;
1347		}
1348	}
1349
1350	return ENCODER_OBJECT_ID_NONE;
1351}
1352
1353static bool amdgpu_connector_encoder_is_hbr2(struct drm_connector *connector)
1354{
1355	struct drm_encoder *encoder;
1356	struct amdgpu_encoder *amdgpu_encoder;
1357	bool found = false;
1358
1359	drm_connector_for_each_possible_encoder(connector, encoder) {
1360		amdgpu_encoder = to_amdgpu_encoder(encoder);
1361		if (amdgpu_encoder->caps & ATOM_ENCODER_CAP_RECORD_HBR2)
1362			found = true;
1363	}
1364
1365	return found;
1366}
1367
1368bool amdgpu_connector_is_dp12_capable(struct drm_connector *connector)
1369{
1370	struct drm_device *dev = connector->dev;
1371	struct amdgpu_device *adev = drm_to_adev(dev);
1372
1373	if ((adev->clock.default_dispclk >= 53900) &&
1374	    amdgpu_connector_encoder_is_hbr2(connector)) {
1375		return true;
1376	}
1377
1378	return false;
1379}
1380
1381static enum drm_connector_status
1382amdgpu_connector_dp_detect(struct drm_connector *connector, bool force)
1383{
1384	struct drm_device *dev = connector->dev;
1385	struct amdgpu_device *adev = drm_to_adev(dev);
1386	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1387	enum drm_connector_status ret = connector_status_disconnected;
1388	struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv;
1389	struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
1390	int r;
1391
1392	if (!drm_kms_helper_is_poll_worker()) {
1393		r = pm_runtime_get_sync(connector->dev->dev);
1394		if (r < 0) {
1395			pm_runtime_put_autosuspend(connector->dev->dev);
1396			return connector_status_disconnected;
1397		}
1398	}
1399
1400	if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
1401		ret = connector->status;
1402		goto out;
1403	}
1404
1405	amdgpu_connector_free_edid(connector);
1406
1407	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1408	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1409		if (encoder) {
1410			struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1411			struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
1412
1413			/* check if panel is valid */
1414			if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
1415				ret = connector_status_connected;
1416		}
1417		/* eDP is always DP */
1418		amdgpu_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1419		if (!amdgpu_dig_connector->edp_on)
1420			amdgpu_atombios_encoder_set_edp_panel_power(connector,
1421							     ATOM_TRANSMITTER_ACTION_POWER_ON);
1422		if (!amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
1423			ret = connector_status_connected;
1424		if (!amdgpu_dig_connector->edp_on)
1425			amdgpu_atombios_encoder_set_edp_panel_power(connector,
1426							     ATOM_TRANSMITTER_ACTION_POWER_OFF);
1427	} else if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1428		   ENCODER_OBJECT_ID_NONE) {
1429		/* DP bridges are always DP */
1430		amdgpu_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1431		/* get the DPCD from the bridge */
1432		amdgpu_atombios_dp_get_dpcd(amdgpu_connector);
1433
1434		if (encoder) {
1435			/* setup ddc on the bridge */
1436			amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder);
1437			/* bridge chips are always aux */
1438			/* try DDC */
1439			if (amdgpu_display_ddc_probe(amdgpu_connector, true))
1440				ret = connector_status_connected;
1441			else if (amdgpu_connector->dac_load_detect) { /* try load detection */
1442				const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
1443
1444				ret = encoder_funcs->detect(encoder, connector);
1445			}
1446		}
1447	} else {
1448		amdgpu_dig_connector->dp_sink_type =
1449			amdgpu_atombios_dp_get_sinktype(amdgpu_connector);
1450		if (amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) {
1451			ret = connector_status_connected;
1452			if (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
1453				amdgpu_atombios_dp_get_dpcd(amdgpu_connector);
1454		} else {
1455			if (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
1456				if (!amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
1457					ret = connector_status_connected;
1458			} else {
1459				/* try non-aux ddc (DP to DVI/HDMI/etc. adapter) */
1460				if (amdgpu_display_ddc_probe(amdgpu_connector,
1461							     false))
1462					ret = connector_status_connected;
1463			}
1464		}
1465	}
1466
1467	amdgpu_connector_update_scratch_regs(connector, ret);
1468out:
1469	if (!drm_kms_helper_is_poll_worker()) {
1470		pm_runtime_mark_last_busy(connector->dev->dev);
1471		pm_runtime_put_autosuspend(connector->dev->dev);
1472	}
1473
1474	if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
1475	    connector->connector_type == DRM_MODE_CONNECTOR_eDP)
1476		drm_dp_set_subconnector_property(&amdgpu_connector->base,
1477						 ret,
1478						 amdgpu_dig_connector->dpcd,
1479						 amdgpu_dig_connector->downstream_ports);
1480	return ret;
1481}
1482
1483static enum drm_mode_status amdgpu_connector_dp_mode_valid(struct drm_connector *connector,
1484					   struct drm_display_mode *mode)
1485{
1486	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1487	struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv;
1488
1489	/* XXX check mode bandwidth */
1490
1491	if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1492	    (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1493		struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
1494
1495		if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
1496			return MODE_PANEL;
1497
1498		if (encoder) {
1499			struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1500			struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
1501
1502			/* AVIVO hardware supports downscaling modes larger than the panel
1503			 * to the panel size, but I'm not sure this is desirable.
1504			 */
1505			if ((mode->hdisplay > native_mode->hdisplay) ||
1506			    (mode->vdisplay > native_mode->vdisplay))
1507				return MODE_PANEL;
1508
1509			/* if scaling is disabled, block non-native modes */
1510			if (amdgpu_encoder->rmx_type == RMX_OFF) {
1511				if ((mode->hdisplay != native_mode->hdisplay) ||
1512				    (mode->vdisplay != native_mode->vdisplay))
1513					return MODE_PANEL;
1514			}
1515		}
1516		return MODE_OK;
1517	} else {
1518		if ((amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
1519		    (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
1520			return amdgpu_atombios_dp_mode_valid_helper(connector, mode);
1521		} else {
1522			if (connector->display_info.is_hdmi) {
1523				/* HDMI 1.3+ supports max clock of 340 Mhz */
1524				if (mode->clock > 340000)
1525					return MODE_CLOCK_HIGH;
1526			} else {
1527				if (mode->clock > 165000)
1528					return MODE_CLOCK_HIGH;
1529			}
1530		}
1531	}
1532
1533	return MODE_OK;
1534}
1535
1536static int
1537amdgpu_connector_late_register(struct drm_connector *connector)
1538{
1539	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1540	int r = 0;
1541
1542	if (amdgpu_connector->ddc_bus->has_aux) {
1543		amdgpu_connector->ddc_bus->aux.dev = amdgpu_connector->base.kdev;
1544		r = drm_dp_aux_register(&amdgpu_connector->ddc_bus->aux);
1545	}
1546
1547	return r;
1548}
1549
1550static const struct drm_connector_helper_funcs amdgpu_connector_dp_helper_funcs = {
1551	.get_modes = amdgpu_connector_dp_get_modes,
1552	.mode_valid = amdgpu_connector_dp_mode_valid,
1553	.best_encoder = amdgpu_connector_dvi_encoder,
1554};
1555
1556static const struct drm_connector_funcs amdgpu_connector_dp_funcs = {
1557	.dpms = drm_helper_connector_dpms,
1558	.detect = amdgpu_connector_dp_detect,
1559	.fill_modes = drm_helper_probe_single_connector_modes,
1560	.set_property = amdgpu_connector_set_property,
1561	.early_unregister = amdgpu_connector_unregister,
1562	.destroy = amdgpu_connector_destroy,
1563	.force = amdgpu_connector_dvi_force,
1564	.late_register = amdgpu_connector_late_register,
1565};
1566
1567static const struct drm_connector_funcs amdgpu_connector_edp_funcs = {
1568	.dpms = drm_helper_connector_dpms,
1569	.detect = amdgpu_connector_dp_detect,
1570	.fill_modes = drm_helper_probe_single_connector_modes,
1571	.set_property = amdgpu_connector_set_lcd_property,
1572	.early_unregister = amdgpu_connector_unregister,
1573	.destroy = amdgpu_connector_destroy,
1574	.force = amdgpu_connector_dvi_force,
1575	.late_register = amdgpu_connector_late_register,
1576};
1577
1578void
1579amdgpu_connector_add(struct amdgpu_device *adev,
1580		      uint32_t connector_id,
1581		      uint32_t supported_device,
1582		      int connector_type,
1583		      struct amdgpu_i2c_bus_rec *i2c_bus,
1584		      uint16_t connector_object_id,
1585		      struct amdgpu_hpd *hpd,
1586		      struct amdgpu_router *router)
1587{
1588	struct drm_device *dev = adev_to_drm(adev);
1589	struct drm_connector *connector;
1590	struct drm_connector_list_iter iter;
1591	struct amdgpu_connector *amdgpu_connector;
1592	struct amdgpu_connector_atom_dig *amdgpu_dig_connector;
1593	struct drm_encoder *encoder;
1594	struct amdgpu_encoder *amdgpu_encoder;
1595	struct i2c_adapter *ddc = NULL;
1596	uint32_t subpixel_order = SubPixelNone;
1597	bool shared_ddc = false;
1598	bool is_dp_bridge = false;
1599	bool has_aux = false;
1600
1601	if (connector_type == DRM_MODE_CONNECTOR_Unknown)
1602		return;
1603
1604	/* see if we already added it */
1605	drm_connector_list_iter_begin(dev, &iter);
1606	drm_for_each_connector_iter(connector, &iter) {
1607		amdgpu_connector = to_amdgpu_connector(connector);
1608		if (amdgpu_connector->connector_id == connector_id) {
1609			amdgpu_connector->devices |= supported_device;
1610			drm_connector_list_iter_end(&iter);
1611			return;
1612		}
1613		if (amdgpu_connector->ddc_bus && i2c_bus->valid) {
1614			if (amdgpu_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) {
1615				amdgpu_connector->shared_ddc = true;
1616				shared_ddc = true;
1617			}
1618			if (amdgpu_connector->router_bus && router->ddc_valid &&
1619			    (amdgpu_connector->router.router_id == router->router_id)) {
1620				amdgpu_connector->shared_ddc = false;
1621				shared_ddc = false;
1622			}
1623		}
1624	}
1625	drm_connector_list_iter_end(&iter);
1626
1627	/* check if it's a dp bridge */
1628	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1629		amdgpu_encoder = to_amdgpu_encoder(encoder);
1630		if (amdgpu_encoder->devices & supported_device) {
1631			switch (amdgpu_encoder->encoder_id) {
1632			case ENCODER_OBJECT_ID_TRAVIS:
1633			case ENCODER_OBJECT_ID_NUTMEG:
1634				is_dp_bridge = true;
1635				break;
1636			default:
1637				break;
1638			}
1639		}
1640	}
1641
1642	amdgpu_connector = kzalloc(sizeof(struct amdgpu_connector), GFP_KERNEL);
1643	if (!amdgpu_connector)
1644		return;
1645
1646	connector = &amdgpu_connector->base;
1647
1648	amdgpu_connector->connector_id = connector_id;
1649	amdgpu_connector->devices = supported_device;
1650	amdgpu_connector->shared_ddc = shared_ddc;
1651	amdgpu_connector->connector_object_id = connector_object_id;
1652	amdgpu_connector->hpd = *hpd;
1653
1654	amdgpu_connector->router = *router;
1655	if (router->ddc_valid || router->cd_valid) {
1656		amdgpu_connector->router_bus = amdgpu_i2c_lookup(adev, &router->i2c_info);
1657		if (!amdgpu_connector->router_bus)
1658			DRM_ERROR("Failed to assign router i2c bus! Check dmesg for i2c errors.\n");
1659	}
1660
1661	if (is_dp_bridge) {
1662		amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1663		if (!amdgpu_dig_connector)
1664			goto failed;
1665		amdgpu_connector->con_priv = amdgpu_dig_connector;
1666		if (i2c_bus->valid) {
1667			amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1668			if (amdgpu_connector->ddc_bus) {
1669				has_aux = true;
1670				ddc = &amdgpu_connector->ddc_bus->adapter;
1671			} else {
1672				DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1673			}
1674		}
1675		switch (connector_type) {
1676		case DRM_MODE_CONNECTOR_VGA:
1677		case DRM_MODE_CONNECTOR_DVIA:
1678		default:
1679			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1680						    &amdgpu_connector_dp_funcs,
1681						    connector_type,
1682						    ddc);
1683			drm_connector_helper_add(&amdgpu_connector->base,
1684						 &amdgpu_connector_dp_helper_funcs);
1685			connector->interlace_allowed = true;
1686			connector->doublescan_allowed = true;
1687			amdgpu_connector->dac_load_detect = true;
1688			drm_object_attach_property(&amdgpu_connector->base.base,
1689						      adev->mode_info.load_detect_property,
1690						      1);
1691			drm_object_attach_property(&amdgpu_connector->base.base,
1692						   dev->mode_config.scaling_mode_property,
1693						   DRM_MODE_SCALE_NONE);
1694			break;
1695		case DRM_MODE_CONNECTOR_DVII:
1696		case DRM_MODE_CONNECTOR_DVID:
1697		case DRM_MODE_CONNECTOR_HDMIA:
1698		case DRM_MODE_CONNECTOR_HDMIB:
1699		case DRM_MODE_CONNECTOR_DisplayPort:
1700			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1701						    &amdgpu_connector_dp_funcs,
1702						    connector_type,
1703						    ddc);
1704			drm_connector_helper_add(&amdgpu_connector->base,
1705						 &amdgpu_connector_dp_helper_funcs);
1706			drm_object_attach_property(&amdgpu_connector->base.base,
1707						      adev->mode_info.underscan_property,
1708						      UNDERSCAN_OFF);
1709			drm_object_attach_property(&amdgpu_connector->base.base,
1710						      adev->mode_info.underscan_hborder_property,
1711						      0);
1712			drm_object_attach_property(&amdgpu_connector->base.base,
1713						      adev->mode_info.underscan_vborder_property,
1714						      0);
1715
1716			drm_object_attach_property(&amdgpu_connector->base.base,
1717						   dev->mode_config.scaling_mode_property,
1718						   DRM_MODE_SCALE_NONE);
1719
1720			drm_object_attach_property(&amdgpu_connector->base.base,
1721						   adev->mode_info.dither_property,
1722						   AMDGPU_FMT_DITHER_DISABLE);
1723
1724			if (amdgpu_audio != 0) {
1725				drm_object_attach_property(&amdgpu_connector->base.base,
1726							   adev->mode_info.audio_property,
1727							   AMDGPU_AUDIO_AUTO);
1728				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
1729			}
1730
1731			subpixel_order = SubPixelHorizontalRGB;
1732			connector->interlace_allowed = true;
1733			if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
1734				connector->doublescan_allowed = true;
1735			else
1736				connector->doublescan_allowed = false;
1737			if (connector_type == DRM_MODE_CONNECTOR_DVII) {
1738				amdgpu_connector->dac_load_detect = true;
1739				drm_object_attach_property(&amdgpu_connector->base.base,
1740							      adev->mode_info.load_detect_property,
1741							      1);
1742			}
1743			break;
1744		case DRM_MODE_CONNECTOR_LVDS:
1745		case DRM_MODE_CONNECTOR_eDP:
1746			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1747						    &amdgpu_connector_edp_funcs,
1748						    connector_type,
1749						    ddc);
1750			drm_connector_helper_add(&amdgpu_connector->base,
1751						 &amdgpu_connector_dp_helper_funcs);
1752			drm_object_attach_property(&amdgpu_connector->base.base,
1753						      dev->mode_config.scaling_mode_property,
1754						      DRM_MODE_SCALE_FULLSCREEN);
1755			subpixel_order = SubPixelHorizontalRGB;
1756			connector->interlace_allowed = false;
1757			connector->doublescan_allowed = false;
1758			break;
1759		}
1760	} else {
1761		switch (connector_type) {
1762		case DRM_MODE_CONNECTOR_VGA:
1763			if (i2c_bus->valid) {
1764				amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1765				if (!amdgpu_connector->ddc_bus)
1766					DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1767				else
1768					ddc = &amdgpu_connector->ddc_bus->adapter;
1769			}
1770			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1771						    &amdgpu_connector_vga_funcs,
1772						    connector_type,
1773						    ddc);
1774			drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_vga_helper_funcs);
1775			amdgpu_connector->dac_load_detect = true;
1776			drm_object_attach_property(&amdgpu_connector->base.base,
1777						      adev->mode_info.load_detect_property,
1778						      1);
1779			drm_object_attach_property(&amdgpu_connector->base.base,
1780						   dev->mode_config.scaling_mode_property,
1781						   DRM_MODE_SCALE_NONE);
1782			/* no HPD on analog connectors */
1783			amdgpu_connector->hpd.hpd = AMDGPU_HPD_NONE;
1784			connector->interlace_allowed = true;
1785			connector->doublescan_allowed = true;
1786			break;
1787		case DRM_MODE_CONNECTOR_DVIA:
1788			if (i2c_bus->valid) {
1789				amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1790				if (!amdgpu_connector->ddc_bus)
1791					DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1792				else
1793					ddc = &amdgpu_connector->ddc_bus->adapter;
1794			}
1795			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1796						    &amdgpu_connector_vga_funcs,
1797						    connector_type,
1798						    ddc);
1799			drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_vga_helper_funcs);
1800			amdgpu_connector->dac_load_detect = true;
1801			drm_object_attach_property(&amdgpu_connector->base.base,
1802						      adev->mode_info.load_detect_property,
1803						      1);
1804			drm_object_attach_property(&amdgpu_connector->base.base,
1805						   dev->mode_config.scaling_mode_property,
1806						   DRM_MODE_SCALE_NONE);
1807			/* no HPD on analog connectors */
1808			amdgpu_connector->hpd.hpd = AMDGPU_HPD_NONE;
1809			connector->interlace_allowed = true;
1810			connector->doublescan_allowed = true;
1811			break;
1812		case DRM_MODE_CONNECTOR_DVII:
1813		case DRM_MODE_CONNECTOR_DVID:
1814			amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1815			if (!amdgpu_dig_connector)
1816				goto failed;
1817			amdgpu_connector->con_priv = amdgpu_dig_connector;
1818			if (i2c_bus->valid) {
1819				amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1820				if (!amdgpu_connector->ddc_bus)
1821					DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1822				else
1823					ddc = &amdgpu_connector->ddc_bus->adapter;
1824			}
1825			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1826						    &amdgpu_connector_dvi_funcs,
1827						    connector_type,
1828						    ddc);
1829			drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dvi_helper_funcs);
1830			subpixel_order = SubPixelHorizontalRGB;
1831			drm_object_attach_property(&amdgpu_connector->base.base,
1832						      adev->mode_info.coherent_mode_property,
1833						      1);
1834			drm_object_attach_property(&amdgpu_connector->base.base,
1835						   adev->mode_info.underscan_property,
1836						   UNDERSCAN_OFF);
1837			drm_object_attach_property(&amdgpu_connector->base.base,
1838						   adev->mode_info.underscan_hborder_property,
1839						   0);
1840			drm_object_attach_property(&amdgpu_connector->base.base,
1841						   adev->mode_info.underscan_vborder_property,
1842						   0);
1843			drm_object_attach_property(&amdgpu_connector->base.base,
1844						   dev->mode_config.scaling_mode_property,
1845						   DRM_MODE_SCALE_NONE);
1846
1847			if (amdgpu_audio != 0) {
1848				drm_object_attach_property(&amdgpu_connector->base.base,
1849							   adev->mode_info.audio_property,
1850							   AMDGPU_AUDIO_AUTO);
1851				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
1852			}
1853			drm_object_attach_property(&amdgpu_connector->base.base,
1854						   adev->mode_info.dither_property,
1855						   AMDGPU_FMT_DITHER_DISABLE);
1856			if (connector_type == DRM_MODE_CONNECTOR_DVII) {
1857				amdgpu_connector->dac_load_detect = true;
1858				drm_object_attach_property(&amdgpu_connector->base.base,
1859							   adev->mode_info.load_detect_property,
1860							   1);
1861			}
1862			connector->interlace_allowed = true;
1863			if (connector_type == DRM_MODE_CONNECTOR_DVII)
1864				connector->doublescan_allowed = true;
1865			else
1866				connector->doublescan_allowed = false;
1867			break;
1868		case DRM_MODE_CONNECTOR_HDMIA:
1869		case DRM_MODE_CONNECTOR_HDMIB:
1870			amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1871			if (!amdgpu_dig_connector)
1872				goto failed;
1873			amdgpu_connector->con_priv = amdgpu_dig_connector;
1874			if (i2c_bus->valid) {
1875				amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1876				if (!amdgpu_connector->ddc_bus)
1877					DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1878				else
1879					ddc = &amdgpu_connector->ddc_bus->adapter;
1880			}
1881			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1882						    &amdgpu_connector_dvi_funcs,
1883						    connector_type,
1884						    ddc);
1885			drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dvi_helper_funcs);
1886			drm_object_attach_property(&amdgpu_connector->base.base,
1887						      adev->mode_info.coherent_mode_property,
1888						      1);
1889			drm_object_attach_property(&amdgpu_connector->base.base,
1890						   adev->mode_info.underscan_property,
1891						   UNDERSCAN_OFF);
1892			drm_object_attach_property(&amdgpu_connector->base.base,
1893						   adev->mode_info.underscan_hborder_property,
1894						   0);
1895			drm_object_attach_property(&amdgpu_connector->base.base,
1896						   adev->mode_info.underscan_vborder_property,
1897						   0);
1898			drm_object_attach_property(&amdgpu_connector->base.base,
1899						   dev->mode_config.scaling_mode_property,
1900						   DRM_MODE_SCALE_NONE);
1901			if (amdgpu_audio != 0) {
1902				drm_object_attach_property(&amdgpu_connector->base.base,
1903							   adev->mode_info.audio_property,
1904							   AMDGPU_AUDIO_AUTO);
1905				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
1906			}
1907			drm_object_attach_property(&amdgpu_connector->base.base,
1908						   adev->mode_info.dither_property,
1909						   AMDGPU_FMT_DITHER_DISABLE);
1910			subpixel_order = SubPixelHorizontalRGB;
1911			connector->interlace_allowed = true;
1912			if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
1913				connector->doublescan_allowed = true;
1914			else
1915				connector->doublescan_allowed = false;
1916			break;
1917		case DRM_MODE_CONNECTOR_DisplayPort:
1918			amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1919			if (!amdgpu_dig_connector)
1920				goto failed;
1921			amdgpu_connector->con_priv = amdgpu_dig_connector;
1922			if (i2c_bus->valid) {
1923				amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1924				if (amdgpu_connector->ddc_bus) {
1925					has_aux = true;
1926					ddc = &amdgpu_connector->ddc_bus->adapter;
1927				} else {
1928					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1929				}
1930			}
1931			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1932						    &amdgpu_connector_dp_funcs,
1933						    connector_type,
1934						    ddc);
1935			drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dp_helper_funcs);
1936			subpixel_order = SubPixelHorizontalRGB;
1937			drm_object_attach_property(&amdgpu_connector->base.base,
1938						      adev->mode_info.coherent_mode_property,
1939						      1);
1940			drm_object_attach_property(&amdgpu_connector->base.base,
1941						   adev->mode_info.underscan_property,
1942						   UNDERSCAN_OFF);
1943			drm_object_attach_property(&amdgpu_connector->base.base,
1944						   adev->mode_info.underscan_hborder_property,
1945						   0);
1946			drm_object_attach_property(&amdgpu_connector->base.base,
1947						   adev->mode_info.underscan_vborder_property,
1948						   0);
1949			drm_object_attach_property(&amdgpu_connector->base.base,
1950						   dev->mode_config.scaling_mode_property,
1951						   DRM_MODE_SCALE_NONE);
1952			if (amdgpu_audio != 0) {
1953				drm_object_attach_property(&amdgpu_connector->base.base,
1954							   adev->mode_info.audio_property,
1955							   AMDGPU_AUDIO_AUTO);
1956				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
1957			}
1958			drm_object_attach_property(&amdgpu_connector->base.base,
1959						   adev->mode_info.dither_property,
1960						   AMDGPU_FMT_DITHER_DISABLE);
1961			connector->interlace_allowed = true;
1962			/* in theory with a DP to VGA converter... */
1963			connector->doublescan_allowed = false;
1964			break;
1965		case DRM_MODE_CONNECTOR_eDP:
1966			amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1967			if (!amdgpu_dig_connector)
1968				goto failed;
1969			amdgpu_connector->con_priv = amdgpu_dig_connector;
1970			if (i2c_bus->valid) {
1971				amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1972				if (amdgpu_connector->ddc_bus) {
1973					has_aux = true;
1974					ddc = &amdgpu_connector->ddc_bus->adapter;
1975				} else {
1976					DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1977				}
1978			}
1979			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1980						    &amdgpu_connector_edp_funcs,
1981						    connector_type,
1982						    ddc);
1983			drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dp_helper_funcs);
1984			drm_object_attach_property(&amdgpu_connector->base.base,
1985						      dev->mode_config.scaling_mode_property,
1986						      DRM_MODE_SCALE_FULLSCREEN);
1987			subpixel_order = SubPixelHorizontalRGB;
1988			connector->interlace_allowed = false;
1989			connector->doublescan_allowed = false;
1990			break;
1991		case DRM_MODE_CONNECTOR_LVDS:
1992			amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1993			if (!amdgpu_dig_connector)
1994				goto failed;
1995			amdgpu_connector->con_priv = amdgpu_dig_connector;
1996			if (i2c_bus->valid) {
1997				amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1998				if (!amdgpu_connector->ddc_bus)
1999					DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
2000				else
2001					ddc = &amdgpu_connector->ddc_bus->adapter;
2002			}
2003			drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
2004						    &amdgpu_connector_lvds_funcs,
2005						    connector_type,
2006						    ddc);
2007			drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_lvds_helper_funcs);
2008			drm_object_attach_property(&amdgpu_connector->base.base,
2009						      dev->mode_config.scaling_mode_property,
2010						      DRM_MODE_SCALE_FULLSCREEN);
2011			subpixel_order = SubPixelHorizontalRGB;
2012			connector->interlace_allowed = false;
2013			connector->doublescan_allowed = false;
2014			break;
2015		}
2016	}
2017
2018	if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE) {
2019		if (i2c_bus->valid) {
2020			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
2021						DRM_CONNECTOR_POLL_DISCONNECT;
2022		}
2023	} else
2024		connector->polled = DRM_CONNECTOR_POLL_HPD;
2025
2026	connector->display_info.subpixel_order = subpixel_order;
2027
2028	if (has_aux)
2029		amdgpu_atombios_dp_aux_init(amdgpu_connector);
2030
2031	if (connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
2032	    connector_type == DRM_MODE_CONNECTOR_eDP) {
2033		drm_connector_attach_dp_subconnector_property(&amdgpu_connector->base);
2034	}
2035
2036	return;
2037
2038failed:
2039	drm_connector_cleanup(connector);
2040	kfree(connector);
2041}