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