drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c

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