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