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