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