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