drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

   1 /*
   2  * Copyright 2015 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: AMD
  23  *
  24  */
  25
  26 #include <linux/string.h>
  27 #include <linux/acpi.h>
  28 #include <linux/i2c.h>
  29
  30 #include <drm/drm_atomic.h>
  31 #include <drm/drm_probe_helper.h>
  32 #include <drm/amdgpu_drm.h>
  33 #include <drm/drm_edid.h>
  34
  35 #include "dm_services.h"
  36 #include "amdgpu.h"
  37 #include "dc.h"
  38 #include "amdgpu_dm.h"
  39 #include "amdgpu_dm_irq.h"
  40 #include "amdgpu_dm_mst_types.h"
  41 #include "dpcd_defs.h"
  42 #include "dc/inc/core_types.h"
  43
  44 #include "dm_helpers.h"
  45 #include "ddc_service_types.h"
  46
  47 /* MST Dock */
  48 static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA";
  49
  50 /* dm_helpers_parse_edid_caps
  51  *
  52  * Parse edid caps
  53  *
  54  * @edid:       [in] pointer to edid
  55  *  edid_caps:  [in] pointer to edid caps
  56  * @return
  57  *      void
  58  * */
  59 enum dc_edid_status dm_helpers_parse_edid_caps(
  60                 struct dc_link *link,
  61                 const struct dc_edid *edid,
  62                 struct dc_edid_caps *edid_caps)
  63 {
  64         struct amdgpu_dm_connector *aconnector = link->priv;
  65         struct drm_connector *connector = &aconnector->base;
  66         struct edid *edid_buf = edid ? (struct edid *) edid->raw_edid : NULL;
  67         struct cea_sad *sads;
  68         int sad_count = -1;
  69         int sadb_count = -1;
  70         int i = 0;
  71         uint8_t *sadb = NULL;
  72
  73         enum dc_edid_status result = EDID_OK;
  74
  75         if (!edid_caps || !edid)
  76                 return EDID_BAD_INPUT;
  77
  78         if (!drm_edid_is_valid(edid_buf))
  79                 result = EDID_BAD_CHECKSUM;
  80
  81         edid_caps->manufacturer_id = (uint16_t) edid_buf->mfg_id[0] |
  82                                         ((uint16_t) edid_buf->mfg_id[1])<<8;
  83         edid_caps->product_id = (uint16_t) edid_buf->prod_code[0] |
  84                                         ((uint16_t) edid_buf->prod_code[1])<<8;
  85         edid_caps->serial_number = edid_buf->serial;
  86         edid_caps->manufacture_week = edid_buf->mfg_week;
  87         edid_caps->manufacture_year = edid_buf->mfg_year;
  88
  89         drm_edid_get_monitor_name(edid_buf,
  90                                   edid_caps->display_name,
  91                                   AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
  92
  93         edid_caps->edid_hdmi = connector->display_info.is_hdmi;
  94
  95         sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads);
  96         if (sad_count <= 0)
  97                 return result;
  98
  99         edid_caps->audio_mode_count = sad_count < DC_MAX_AUDIO_DESC_COUNT ? sad_count : DC_MAX_AUDIO_DESC_COUNT;
 100         for (i = 0; i < edid_caps->audio_mode_count; ++i) {
 101                 struct cea_sad *sad = &sads[i];
 102
 103                 edid_caps->audio_modes[i].format_code = sad->format;
 104                 edid_caps->audio_modes[i].channel_count = sad->channels + 1;
 105                 edid_caps->audio_modes[i].sample_rate = sad->freq;
 106                 edid_caps->audio_modes[i].sample_size = sad->byte2;
 107         }
 108
 109         sadb_count = drm_edid_to_speaker_allocation((struct edid *) edid->raw_edid, &sadb);
 110
 111         if (sadb_count < 0) {
 112                 DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sadb_count);
 113                 sadb_count = 0;
 114         }
 115
 116         if (sadb_count)
 117                 edid_caps->speaker_flags = sadb[0];
 118         else
 119                 edid_caps->speaker_flags = DEFAULT_SPEAKER_LOCATION;
 120
 121         kfree(sads);
 122         kfree(sadb);
 123
 124         return result;
 125 }
 126
 127 static void
 128 fill_dc_mst_payload_table_from_drm(struct dc_link *link,
 129                                    bool enable,
 130                                    struct drm_dp_mst_atomic_payload *target_payload,
 131                                    struct dc_dp_mst_stream_allocation_table *table)
 132 {
 133         struct dc_dp_mst_stream_allocation_table new_table = { 0 };
 134         struct dc_dp_mst_stream_allocation *sa;
 135         struct link_mst_stream_allocation_table copy_of_link_table =
 136                                                                                 link->mst_stream_alloc_table;
 137
 138         int i;
 139         int current_hw_table_stream_cnt = copy_of_link_table.stream_count;
 140         struct link_mst_stream_allocation *dc_alloc;
 141
 142         /* TODO: refactor to set link->mst_stream_alloc_table directly if possible.*/
 143         if (enable) {
 144                 dc_alloc =
 145                 &copy_of_link_table.stream_allocations[current_hw_table_stream_cnt];
 146                 dc_alloc->vcp_id = target_payload->vcpi;
 147                 dc_alloc->slot_count = target_payload->time_slots;
 148         } else {
 149                 for (i = 0; i < copy_of_link_table.stream_count; i++) {
 150                         dc_alloc =
 151                         &copy_of_link_table.stream_allocations[i];
 152
 153                         if (dc_alloc->vcp_id == target_payload->vcpi) {
 154                                 dc_alloc->vcp_id = 0;
 155                                 dc_alloc->slot_count = 0;
 156                                 break;
 157                         }
 158                 }
 159                 ASSERT(i != copy_of_link_table.stream_count);
 160         }
 161
 162         /* Fill payload info*/
 163         for (i = 0; i < MAX_CONTROLLER_NUM; i++) {
 164                 dc_alloc =
 165                         &copy_of_link_table.stream_allocations[i];
 166                 if (dc_alloc->vcp_id > 0 && dc_alloc->slot_count > 0) {
 167                         sa = &new_table.stream_allocations[new_table.stream_count];
 168                         sa->slot_count = dc_alloc->slot_count;
 169                         sa->vcp_id = dc_alloc->vcp_id;
 170                         new_table.stream_count++;
 171                 }
 172         }
 173
 174         /* Overwrite the old table */
 175         *table = new_table;
 176 }
 177
 178 void dm_helpers_dp_update_branch_info(
 179         struct dc_context *ctx,
 180         const struct dc_link *link)
 181 {}
 182
 183 static void dm_helpers_construct_old_payload(
 184                         struct dc_link *link,
 185                         int pbn_per_slot,
 186                         struct drm_dp_mst_atomic_payload *new_payload,
 187                         struct drm_dp_mst_atomic_payload *old_payload)
 188 {
 189         struct link_mst_stream_allocation_table current_link_table =
 190                                                                         link->mst_stream_alloc_table;
 191         struct link_mst_stream_allocation *dc_alloc;
 192         int i;
 193
 194         *old_payload = *new_payload;
 195
 196         /* Set correct time_slots/PBN of old payload.
 197          * other fields (delete & dsc_enabled) in
 198          * struct drm_dp_mst_atomic_payload are don't care fields
 199          * while calling drm_dp_remove_payload()
 200          */
 201         for (i = 0; i < current_link_table.stream_count; i++) {
 202                 dc_alloc =
 203                         &current_link_table.stream_allocations[i];
 204
 205                 if (dc_alloc->vcp_id == new_payload->vcpi) {
 206                         old_payload->time_slots = dc_alloc->slot_count;
 207                         old_payload->pbn = dc_alloc->slot_count * pbn_per_slot;
 208                         break;
 209                 }
 210         }
 211
 212         /* make sure there is an old payload*/
 213         ASSERT(i != current_link_table.stream_count);
 214
 215 }
 216
 217 /*
 218  * Writes payload allocation table in immediate downstream device.
 219  */
 220 bool dm_helpers_dp_mst_write_payload_allocation_table(
 221                 struct dc_context *ctx,
 222                 const struct dc_stream_state *stream,
 223                 struct dc_dp_mst_stream_allocation_table *proposed_table,
 224                 bool enable)
 225 {
 226         struct amdgpu_dm_connector *aconnector;
 227         struct drm_dp_mst_topology_state *mst_state;
 228         struct drm_dp_mst_atomic_payload *target_payload, *new_payload, old_payload;
 229         struct drm_dp_mst_topology_mgr *mst_mgr;
 230
 231         aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
 232         /* Accessing the connector state is required for vcpi_slots allocation
 233          * and directly relies on behaviour in commit check
 234          * that blocks before commit guaranteeing that the state
 235          * is not gonna be swapped while still in use in commit tail */
 236
 237         if (!aconnector || !aconnector->mst_root)
 238                 return false;
 239
 240         mst_mgr = &aconnector->mst_root->mst_mgr;
 241         mst_state = to_drm_dp_mst_topology_state(mst_mgr->base.state);
 242
 243         /* It's OK for this to fail */
 244         new_payload = drm_atomic_get_mst_payload_state(mst_state, aconnector->mst_output_port);
 245
 246         if (enable) {
 247                 target_payload = new_payload;
 248
 249                 drm_dp_add_payload_part1(mst_mgr, mst_state, new_payload);
 250         } else {
 251                 /* construct old payload by VCPI*/
 252                 dm_helpers_construct_old_payload(stream->link, mst_state->pbn_div,
 253                                                 new_payload, &old_payload);
 254                 target_payload = &old_payload;
 255
 256                 drm_dp_remove_payload(mst_mgr, mst_state, &old_payload, new_payload);
 257         }
 258
 259         /* mst_mgr->->payloads are VC payload notify MST branch using DPCD or
 260          * AUX message. The sequence is slot 1-63 allocated sequence for each
 261          * stream. AMD ASIC stream slot allocation should follow the same
 262          * sequence. copy DRM MST allocation to dc */
 263         fill_dc_mst_payload_table_from_drm(stream->link, enable, target_payload, proposed_table);
 264
 265         return true;
 266 }
 267
 268 /*
 269  * poll pending down reply
 270  */
 271 void dm_helpers_dp_mst_poll_pending_down_reply(
 272         struct dc_context *ctx,
 273         const struct dc_link *link)
 274 {}
 275
 276 /*
 277  * Clear payload allocation table before enable MST DP link.
 278  */
 279 void dm_helpers_dp_mst_clear_payload_allocation_table(
 280         struct dc_context *ctx,
 281         const struct dc_link *link)
 282 {}
 283
 284 /*
 285  * Polls for ACT (allocation change trigger) handled and sends
 286  * ALLOCATE_PAYLOAD message.
 287  */
 288 enum act_return_status dm_helpers_dp_mst_poll_for_allocation_change_trigger(
 289                 struct dc_context *ctx,
 290                 const struct dc_stream_state *stream)
 291 {
 292         struct amdgpu_dm_connector *aconnector;
 293         struct drm_dp_mst_topology_mgr *mst_mgr;
 294         int ret;
 295
 296         aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
 297
 298         if (!aconnector || !aconnector->mst_root)
 299                 return ACT_FAILED;
 300
 301         mst_mgr = &aconnector->mst_root->mst_mgr;
 302
 303         if (!mst_mgr->mst_state)
 304                 return ACT_FAILED;
 305
 306         ret = drm_dp_check_act_status(mst_mgr);
 307
 308         if (ret)
 309                 return ACT_FAILED;
 310
 311         return ACT_SUCCESS;
 312 }
 313
 314 bool dm_helpers_dp_mst_send_payload_allocation(
 315                 struct dc_context *ctx,
 316                 const struct dc_stream_state *stream,
 317                 bool enable)
 318 {
 319         struct amdgpu_dm_connector *aconnector;
 320         struct drm_dp_mst_topology_state *mst_state;
 321         struct drm_dp_mst_topology_mgr *mst_mgr;
 322         struct drm_dp_mst_atomic_payload *payload;
 323         enum mst_progress_status set_flag = MST_ALLOCATE_NEW_PAYLOAD;
 324         enum mst_progress_status clr_flag = MST_CLEAR_ALLOCATED_PAYLOAD;
 325         int ret = 0;
 326
 327         aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
 328
 329         if (!aconnector || !aconnector->mst_root)
 330                 return false;
 331
 332         mst_mgr = &aconnector->mst_root->mst_mgr;
 333         mst_state = to_drm_dp_mst_topology_state(mst_mgr->base.state);
 334
 335         payload = drm_atomic_get_mst_payload_state(mst_state, aconnector->mst_output_port);
 336
 337         if (!enable) {
 338                 set_flag = MST_CLEAR_ALLOCATED_PAYLOAD;
 339                 clr_flag = MST_ALLOCATE_NEW_PAYLOAD;
 340         }
 341
 342         if (enable)
 343                 ret = drm_dp_add_payload_part2(mst_mgr, mst_state->base.state, payload);
 344
 345         if (ret) {
 346                 amdgpu_dm_set_mst_status(&aconnector->mst_status,
 347                         set_flag, false);
 348         } else {
 349                 amdgpu_dm_set_mst_status(&aconnector->mst_status,
 350                         set_flag, true);
 351                 amdgpu_dm_set_mst_status(&aconnector->mst_status,
 352                         clr_flag, false);
 353         }
 354
 355         return true;
 356 }
 357
 358 void dm_dtn_log_begin(struct dc_context *ctx,
 359         struct dc_log_buffer_ctx *log_ctx)
 360 {
 361         static const char msg[] = "[dtn begin]\n";
 362
 363         if (!log_ctx) {
 364                 pr_info("%s", msg);
 365                 return;
 366         }
 367
 368         dm_dtn_log_append_v(ctx, log_ctx, "%s", msg);
 369 }
 370
 371 __printf(3, 4)
 372 void dm_dtn_log_append_v(struct dc_context *ctx,
 373         struct dc_log_buffer_ctx *log_ctx,
 374         const char *msg, ...)
 375 {
 376         va_list args;
 377         size_t total;
 378         int n;
 379
 380         if (!log_ctx) {
 381                 /* No context, redirect to dmesg. */
 382                 struct va_format vaf;
 383
 384                 vaf.fmt = msg;
 385                 vaf.va = &args;
 386
 387                 va_start(args, msg);
 388                 pr_info("%pV", &vaf);
 389                 va_end(args);
 390
 391                 return;
 392         }
 393
 394         /* Measure the output. */
 395         va_start(args, msg);
 396         n = vsnprintf(NULL, 0, msg, args);
 397         va_end(args);
 398
 399         if (n <= 0)
 400                 return;
 401
 402         /* Reallocate the string buffer as needed. */
 403         total = log_ctx->pos + n + 1;
 404
 405         if (total > log_ctx->size) {
 406                 char *buf = (char *)kvcalloc(total, sizeof(char), GFP_KERNEL);
 407
 408                 if (buf) {
 409                         memcpy(buf, log_ctx->buf, log_ctx->pos);
 410                         kfree(log_ctx->buf);
 411
 412                         log_ctx->buf = buf;
 413                         log_ctx->size = total;
 414                 }
 415         }
 416
 417         if (!log_ctx->buf)
 418                 return;
 419
 420         /* Write the formatted string to the log buffer. */
 421         va_start(args, msg);
 422         n = vscnprintf(
 423                 log_ctx->buf + log_ctx->pos,
 424                 log_ctx->size - log_ctx->pos,
 425                 msg,
 426                 args);
 427         va_end(args);
 428
 429         if (n > 0)
 430                 log_ctx->pos += n;
 431 }
 432
 433 void dm_dtn_log_end(struct dc_context *ctx,
 434         struct dc_log_buffer_ctx *log_ctx)
 435 {
 436         static const char msg[] = "[dtn end]\n";
 437
 438         if (!log_ctx) {
 439                 pr_info("%s", msg);
 440                 return;
 441         }
 442
 443         dm_dtn_log_append_v(ctx, log_ctx, "%s", msg);
 444 }
 445
 446 bool dm_helpers_dp_mst_start_top_mgr(
 447                 struct dc_context *ctx,
 448                 const struct dc_link *link,
 449                 bool boot)
 450 {
 451         struct amdgpu_dm_connector *aconnector = link->priv;
 452         int ret;
 453
 454         if (!aconnector) {
 455                 DRM_ERROR("Failed to find connector for link!");
 456                 return false;
 457         }
 458
 459         if (boot) {
 460                 DRM_INFO("DM_MST: Differing MST start on aconnector: %p [id: %d]\n",
 461                                         aconnector, aconnector->base.base.id);
 462                 return true;
 463         }
 464
 465         DRM_INFO("DM_MST: starting TM on aconnector: %p [id: %d]\n",
 466                         aconnector, aconnector->base.base.id);
 467
 468         ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true);
 469         if (ret < 0) {
 470                 DRM_ERROR("DM_MST: Failed to set the device into MST mode!");
 471                 return false;
 472         }
 473
 474         DRM_INFO("DM_MST: DP%x, %d-lane link detected\n", aconnector->mst_mgr.dpcd[0],
 475                 aconnector->mst_mgr.dpcd[2] & DP_MAX_LANE_COUNT_MASK);
 476
 477         return true;
 478 }
 479
 480 bool dm_helpers_dp_mst_stop_top_mgr(
 481                 struct dc_context *ctx,
 482                 struct dc_link *link)
 483 {
 484         struct amdgpu_dm_connector *aconnector = link->priv;
 485
 486         if (!aconnector) {
 487                 DRM_ERROR("Failed to find connector for link!");
 488                 return false;
 489         }
 490
 491         DRM_INFO("DM_MST: stopping TM on aconnector: %p [id: %d]\n",
 492                         aconnector, aconnector->base.base.id);
 493
 494         if (aconnector->mst_mgr.mst_state == true) {
 495                 drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, false);
 496                 link->cur_link_settings.lane_count = 0;
 497         }
 498
 499         return false;
 500 }
 501
 502 bool dm_helpers_dp_read_dpcd(
 503                 struct dc_context *ctx,
 504                 const struct dc_link *link,
 505                 uint32_t address,
 506                 uint8_t *data,
 507                 uint32_t size)
 508 {
 509
 510         struct amdgpu_dm_connector *aconnector = link->priv;
 511
 512         if (!aconnector) {
 513                 DC_LOG_DC("Failed to find connector for link!\n");
 514                 return false;
 515         }
 516
 517         return drm_dp_dpcd_read(&aconnector->dm_dp_aux.aux, address, data,
 518                                 size) == size;
 519 }
 520
 521 bool dm_helpers_dp_write_dpcd(
 522                 struct dc_context *ctx,
 523                 const struct dc_link *link,
 524                 uint32_t address,
 525                 const uint8_t *data,
 526                 uint32_t size)
 527 {
 528         struct amdgpu_dm_connector *aconnector = link->priv;
 529
 530         if (!aconnector) {
 531                 DRM_ERROR("Failed to find connector for link!");
 532                 return false;
 533         }
 534
 535         return drm_dp_dpcd_write(&aconnector->dm_dp_aux.aux,
 536                         address, (uint8_t *)data, size) > 0;
 537 }
 538
 539 bool dm_helpers_submit_i2c(
 540                 struct dc_context *ctx,
 541                 const struct dc_link *link,
 542                 struct i2c_command *cmd)
 543 {
 544         struct amdgpu_dm_connector *aconnector = link->priv;
 545         struct i2c_msg *msgs;
 546         int i = 0;
 547         int num = cmd->number_of_payloads;
 548         bool result;
 549
 550         if (!aconnector) {
 551                 DRM_ERROR("Failed to find connector for link!");
 552                 return false;
 553         }
 554
 555         msgs = kcalloc(num, sizeof(struct i2c_msg), GFP_KERNEL);
 556
 557         if (!msgs)
 558                 return false;
 559
 560         for (i = 0; i < num; i++) {
 561                 msgs[i].flags = cmd->payloads[i].write ? 0 : I2C_M_RD;
 562                 msgs[i].addr = cmd->payloads[i].address;
 563                 msgs[i].len = cmd->payloads[i].length;
 564                 msgs[i].buf = cmd->payloads[i].data;
 565         }
 566
 567         result = i2c_transfer(&aconnector->i2c->base, msgs, num) == num;
 568
 569         kfree(msgs);
 570
 571         return result;
 572 }
 573
 574 static bool execute_synaptics_rc_command(struct drm_dp_aux *aux,
 575                 bool is_write_cmd,
 576                 unsigned char cmd,
 577                 unsigned int length,
 578                 unsigned int offset,
 579                 unsigned char *data)
 580 {
 581         bool success = false;
 582         unsigned char rc_data[16] = {0};
 583         unsigned char rc_offset[4] = {0};
 584         unsigned char rc_length[2] = {0};
 585         unsigned char rc_cmd = 0;
 586         unsigned char rc_result = 0xFF;
 587         unsigned char i = 0;
 588         int ret;
 589
 590         if (is_write_cmd) {
 591                 // write rc data
 592                 memmove(rc_data, data, length);
 593                 ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_DATA, rc_data, sizeof(rc_data));
 594         }
 595
 596         // write rc offset
 597         rc_offset[0] = (unsigned char) offset & 0xFF;
 598         rc_offset[1] = (unsigned char) (offset >> 8) & 0xFF;
 599         rc_offset[2] = (unsigned char) (offset >> 16) & 0xFF;
 600         rc_offset[3] = (unsigned char) (offset >> 24) & 0xFF;
 601         ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_OFFSET, rc_offset, sizeof(rc_offset));
 602
 603         // write rc length
 604         rc_length[0] = (unsigned char) length & 0xFF;
 605         rc_length[1] = (unsigned char) (length >> 8) & 0xFF;
 606         ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_LENGTH, rc_length, sizeof(rc_length));
 607
 608         // write rc cmd
 609         rc_cmd = cmd | 0x80;
 610         ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_COMMAND, &rc_cmd, sizeof(rc_cmd));
 611
 612         if (ret < 0) {
 613                 DRM_ERROR("     execute_synaptics_rc_command - write cmd ..., err = %d\n", ret);
 614                 return false;
 615         }
 616
 617         // poll until active is 0
 618         for (i = 0; i < 10; i++) {
 619                 drm_dp_dpcd_read(aux, SYNAPTICS_RC_COMMAND, &rc_cmd, sizeof(rc_cmd));
 620                 if (rc_cmd == cmd)
 621                         // active is 0
 622                         break;
 623                 msleep(10);
 624         }
 625
 626         // read rc result
 627         drm_dp_dpcd_read(aux, SYNAPTICS_RC_RESULT, &rc_result, sizeof(rc_result));
 628         success = (rc_result == 0);
 629
 630         if (success && !is_write_cmd) {
 631                 // read rc data
 632                 drm_dp_dpcd_read(aux, SYNAPTICS_RC_DATA, data, length);
 633         }
 634
 635         DC_LOG_DC("     execute_synaptics_rc_command - success = %d\n", success);
 636
 637         return success;
 638 }
 639
 640 static void apply_synaptics_fifo_reset_wa(struct drm_dp_aux *aux)
 641 {
 642         unsigned char data[16] = {0};
 643
 644         DC_LOG_DC("Start apply_synaptics_fifo_reset_wa\n");
 645
 646         // Step 2
 647         data[0] = 'P';
 648         data[1] = 'R';
 649         data[2] = 'I';
 650         data[3] = 'U';
 651         data[4] = 'S';
 652
 653         if (!execute_synaptics_rc_command(aux, true, 0x01, 5, 0, data))
 654                 return;
 655
 656         // Step 3 and 4
 657         if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x220998, data))
 658                 return;
 659
 660         data[0] &= (~(1 << 1)); // set bit 1 to 0
 661         if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x220998, data))
 662                 return;
 663
 664         if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x220D98, data))
 665                 return;
 666
 667         data[0] &= (~(1 << 1)); // set bit 1 to 0
 668         if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x220D98, data))
 669                 return;
 670
 671         if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x221198, data))
 672                 return;
 673
 674         data[0] &= (~(1 << 1)); // set bit 1 to 0
 675         if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x221198, data))
 676                 return;
 677
 678         // Step 3 and 5
 679         if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x220998, data))
 680                 return;
 681
 682         data[0] |= (1 << 1); // set bit 1 to 1
 683         if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x220998, data))
 684                 return;
 685
 686         if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x220D98, data))
 687                 return;
 688
 689         data[0] |= (1 << 1); // set bit 1 to 1
 690                 return;
 691
 692         if (!execute_synaptics_rc_command(aux, false, 0x31, 4, 0x221198, data))
 693                 return;
 694
 695         data[0] |= (1 << 1); // set bit 1 to 1
 696         if (!execute_synaptics_rc_command(aux, true, 0x21, 4, 0x221198, data))
 697                 return;
 698
 699         // Step 6
 700         if (!execute_synaptics_rc_command(aux, true, 0x02, 0, 0, NULL))
 701                 return;
 702
 703         DC_LOG_DC("Done apply_synaptics_fifo_reset_wa\n");
 704 }
 705
 706 static uint8_t write_dsc_enable_synaptics_non_virtual_dpcd_mst(
 707                 struct drm_dp_aux *aux,
 708                 const struct dc_stream_state *stream,
 709                 bool enable)
 710 {
 711         uint8_t ret = 0;
 712
 713         DC_LOG_DC("Configure DSC to non-virtual dpcd synaptics\n");
 714
 715         if (enable) {
 716                 /* When DSC is enabled on previous boot and reboot with the hub,
 717                  * there is a chance that Synaptics hub gets stuck during reboot sequence.
 718                  * Applying a workaround to reset Synaptics SDP fifo before enabling the first stream
 719                  */
 720                 if (!stream->link->link_status.link_active &&
 721                         memcmp(stream->link->dpcd_caps.branch_dev_name,
 722                                 (int8_t *)SYNAPTICS_DEVICE_ID, 4) == 0)
 723                         apply_synaptics_fifo_reset_wa(aux);
 724
 725                 ret = drm_dp_dpcd_write(aux, DP_DSC_ENABLE, &enable, 1);
 726                 DRM_INFO("Send DSC enable to synaptics\n");
 727
 728         } else {
 729                 /* Synaptics hub not support virtual dpcd,
 730                  * external monitor occur garbage while disable DSC,
 731                  * Disable DSC only when entire link status turn to false,
 732                  */
 733                 if (!stream->link->link_status.link_active) {
 734                         ret = drm_dp_dpcd_write(aux, DP_DSC_ENABLE, &enable, 1);
 735                         DRM_INFO("Send DSC disable to synaptics\n");
 736                 }
 737         }
 738
 739         return ret;
 740 }
 741
 742 bool dm_helpers_dp_write_dsc_enable(
 743                 struct dc_context *ctx,
 744                 const struct dc_stream_state *stream,
 745                 bool enable)
 746 {
 747         static const uint8_t DSC_DISABLE;
 748         static const uint8_t DSC_DECODING = 0x01;
 749         static const uint8_t DSC_PASSTHROUGH = 0x02;
 750
 751         struct amdgpu_dm_connector *aconnector;
 752         struct drm_dp_mst_port *port;
 753         uint8_t enable_dsc = enable ? DSC_DECODING : DSC_DISABLE;
 754         uint8_t enable_passthrough = enable ? DSC_PASSTHROUGH : DSC_DISABLE;
 755         uint8_t ret = 0;
 756
 757         if (!stream)
 758                 return false;
 759
 760         if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
 761                 aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
 762
 763                 if (!aconnector->dsc_aux)
 764                         return false;
 765
 766                 // apply w/a to synaptics
 767                 if (needs_dsc_aux_workaround(aconnector->dc_link) &&
 768                     (aconnector->mst_downstream_port_present.byte & 0x7) != 0x3)
 769                         return write_dsc_enable_synaptics_non_virtual_dpcd_mst(
 770                                 aconnector->dsc_aux, stream, enable_dsc);
 771
 772                 port = aconnector->mst_output_port;
 773
 774                 if (enable) {
 775                         if (port->passthrough_aux) {
 776                                 ret = drm_dp_dpcd_write(port->passthrough_aux,
 777                                                         DP_DSC_ENABLE,
 778                                                         &enable_passthrough, 1);
 779                                 DC_LOG_DC("Sent DSC pass-through enable to virtual dpcd port, ret = %u\n",
 780                                           ret);
 781                         }
 782
 783                         ret = drm_dp_dpcd_write(aconnector->dsc_aux,
 784                                                 DP_DSC_ENABLE, &enable_dsc, 1);
 785                         DC_LOG_DC("Sent DSC decoding enable to %s port, ret = %u\n",
 786                                   (port->passthrough_aux) ? "remote RX" :
 787                                   "virtual dpcd",
 788                                   ret);
 789                 } else {
 790                         ret = drm_dp_dpcd_write(aconnector->dsc_aux,
 791                                                 DP_DSC_ENABLE, &enable_dsc, 1);
 792                         DC_LOG_DC("Sent DSC decoding disable to %s port, ret = %u\n",
 793                                   (port->passthrough_aux) ? "remote RX" :
 794                                   "virtual dpcd",
 795                                   ret);
 796
 797                         if (port->passthrough_aux) {
 798                                 ret = drm_dp_dpcd_write(port->passthrough_aux,
 799                                                         DP_DSC_ENABLE,
 800                                                         &enable_passthrough, 1);
 801                                 DC_LOG_DC("Sent DSC pass-through disable to virtual dpcd port, ret = %u\n",
 802                                           ret);
 803                         }
 804                 }
 805         }
 806
 807         if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT || stream->signal == SIGNAL_TYPE_EDP) {
 808                 if (stream->sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_NONE) {
 809                         ret = dm_helpers_dp_write_dpcd(ctx, stream->link, DP_DSC_ENABLE, &enable_dsc, 1);
 810                         DC_LOG_DC("Send DSC %s to SST RX\n", enable_dsc ? "enable" : "disable");
 811                 } else if (stream->sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER) {
 812                         ret = dm_helpers_dp_write_dpcd(ctx, stream->link, DP_DSC_ENABLE, &enable_dsc, 1);
 813                         DC_LOG_DC("Send DSC %s to DP-HDMI PCON\n", enable_dsc ? "enable" : "disable");
 814                 }
 815         }
 816
 817         return ret;
 818 }
 819
 820 bool dm_helpers_is_dp_sink_present(struct dc_link *link)
 821 {
 822         bool dp_sink_present;
 823         struct amdgpu_dm_connector *aconnector = link->priv;
 824
 825         if (!aconnector) {
 826                 BUG_ON("Failed to find connector for link!");
 827                 return true;
 828         }
 829
 830         mutex_lock(&aconnector->dm_dp_aux.aux.hw_mutex);
 831         dp_sink_present = dc_link_is_dp_sink_present(link);
 832         mutex_unlock(&aconnector->dm_dp_aux.aux.hw_mutex);
 833         return dp_sink_present;
 834 }
 835
 836 enum dc_edid_status dm_helpers_read_local_edid(
 837                 struct dc_context *ctx,
 838                 struct dc_link *link,
 839                 struct dc_sink *sink)
 840 {
 841         struct amdgpu_dm_connector *aconnector = link->priv;
 842         struct drm_connector *connector = &aconnector->base;
 843         struct i2c_adapter *ddc;
 844         int retry = 3;
 845         enum dc_edid_status edid_status;
 846         struct edid *edid;
 847
 848         if (link->aux_mode)
 849                 ddc = &aconnector->dm_dp_aux.aux.ddc;
 850         else
 851                 ddc = &aconnector->i2c->base;
 852
 853         /* some dongles read edid incorrectly the first time,
 854          * do check sum and retry to make sure read correct edid.
 855          */
 856         do {
 857
 858                 edid = drm_get_edid(&aconnector->base, ddc);
 859
 860                 /* DP Compliance Test 4.2.2.6 */
 861                 if (link->aux_mode && connector->edid_corrupt)
 862                         drm_dp_send_real_edid_checksum(&aconnector->dm_dp_aux.aux, connector->real_edid_checksum);
 863
 864                 if (!edid && connector->edid_corrupt) {
 865                         connector->edid_corrupt = false;
 866                         return EDID_BAD_CHECKSUM;
 867                 }
 868
 869                 if (!edid)
 870                         return EDID_NO_RESPONSE;
 871
 872                 sink->dc_edid.length = EDID_LENGTH * (edid->extensions + 1);
 873                 memmove(sink->dc_edid.raw_edid, (uint8_t *)edid, sink->dc_edid.length);
 874
 875                 /* We don't need the original edid anymore */
 876                 kfree(edid);
 877
 878                 edid_status = dm_helpers_parse_edid_caps(
 879                                                 link,
 880                                                 &sink->dc_edid,
 881                                                 &sink->edid_caps);
 882
 883         } while (edid_status == EDID_BAD_CHECKSUM && --retry > 0);
 884
 885         if (edid_status != EDID_OK)
 886                 DRM_ERROR("EDID err: %d, on connector: %s",
 887                                 edid_status,
 888                                 aconnector->base.name);
 889
 890         /* DP Compliance Test 4.2.2.3 */
 891         if (link->aux_mode)
 892                 drm_dp_send_real_edid_checksum(&aconnector->dm_dp_aux.aux, sink->dc_edid.raw_edid[sink->dc_edid.length-1]);
 893
 894         return edid_status;
 895 }
 896 int dm_helper_dmub_aux_transfer_sync(
 897                 struct dc_context *ctx,
 898                 const struct dc_link *link,
 899                 struct aux_payload *payload,
 900                 enum aux_return_code_type *operation_result)
 901 {
 902         return amdgpu_dm_process_dmub_aux_transfer_sync(ctx, link->link_index, payload,
 903                         operation_result);
 904 }
 905
 906 int dm_helpers_dmub_set_config_sync(struct dc_context *ctx,
 907                 const struct dc_link *link,
 908                 struct set_config_cmd_payload *payload,
 909                 enum set_config_status *operation_result)
 910 {
 911         return amdgpu_dm_process_dmub_set_config_sync(ctx, link->link_index, payload,
 912                         operation_result);
 913 }
 914
 915 void dm_set_dcn_clocks(struct dc_context *ctx, struct dc_clocks *clks)
 916 {
 917         /* TODO: something */
 918 }
 919
 920 void dm_helpers_smu_timeout(struct dc_context *ctx, unsigned int msg_id, unsigned int param, unsigned int timeout_us)
 921 {
 922         // TODO:
 923         //amdgpu_device_gpu_recover(dc_context->driver-context, NULL);
 924 }
 925
 926 void dm_helpers_init_panel_settings(
 927         struct dc_context *ctx,
 928         struct dc_panel_config *panel_config,
 929         struct dc_sink *sink)
 930 {
 931         // Extra Panel Power Sequence
 932         panel_config->pps.extra_t3_ms = sink->edid_caps.panel_patch.extra_t3_ms;
 933         panel_config->pps.extra_t7_ms = sink->edid_caps.panel_patch.extra_t7_ms;
 934         panel_config->pps.extra_delay_backlight_off = sink->edid_caps.panel_patch.extra_delay_backlight_off;
 935         panel_config->pps.extra_post_t7_ms = 0;
 936         panel_config->pps.extra_pre_t11_ms = 0;
 937         panel_config->pps.extra_t12_ms = sink->edid_caps.panel_patch.extra_t12_ms;
 938         panel_config->pps.extra_post_OUI_ms = 0;
 939         // Feature DSC
 940         panel_config->dsc.disable_dsc_edp = false;
 941         panel_config->dsc.force_dsc_edp_policy = 0;
 942 }
 943
 944 void dm_helpers_override_panel_settings(
 945         struct dc_context *ctx,
 946         struct dc_panel_config *panel_config)
 947 {
 948         // Feature DSC
 949         if (amdgpu_dc_debug_mask & DC_DISABLE_DSC) {
 950                 panel_config->dsc.disable_dsc_edp = true;
 951         }
 952 }
 953
 954 void *dm_helpers_allocate_gpu_mem(
 955                 struct dc_context *ctx,
 956                 enum dc_gpu_mem_alloc_type type,
 957                 size_t size,
 958                 long long *addr)
 959 {
 960         struct amdgpu_device *adev = ctx->driver_context;
 961         struct dal_allocation *da;
 962         u32 domain = (type == DC_MEM_ALLOC_TYPE_GART) ?
 963                 AMDGPU_GEM_DOMAIN_GTT : AMDGPU_GEM_DOMAIN_VRAM;
 964         int ret;
 965
 966         da = kzalloc(sizeof(struct dal_allocation), GFP_KERNEL);
 967         if (!da)
 968                 return NULL;
 969
 970         ret = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
 971                                       domain, &da->bo,
 972                                       &da->gpu_addr, &da->cpu_ptr);
 973
 974         *addr = da->gpu_addr;
 975
 976         if (ret) {
 977                 kfree(da);
 978                 return NULL;
 979         }
 980
 981         /* add da to list in dm */
 982         list_add(&da->list, &adev->dm.da_list);
 983
 984         return da->cpu_ptr;
 985 }
 986
 987 void dm_helpers_free_gpu_mem(
 988                 struct dc_context *ctx,
 989                 enum dc_gpu_mem_alloc_type type,
 990                 void *pvMem)
 991 {
 992         struct amdgpu_device *adev = ctx->driver_context;
 993         struct dal_allocation *da;
 994
 995         /* walk the da list in DM */
 996         list_for_each_entry(da, &adev->dm.da_list, list) {
 997                 if (pvMem == da->cpu_ptr) {
 998                         amdgpu_bo_free_kernel(&da->bo, &da->gpu_addr, &da->cpu_ptr);
 999                         list_del(&da->list);
1000                         kfree(da);
1001                         break;
1002                 }
1003         }
1004 }
1005
1006 bool dm_helpers_dmub_outbox_interrupt_control(struct dc_context *ctx, bool enable)
1007 {
1008         enum dc_irq_source irq_source;
1009         bool ret;
1010
1011         irq_source = DC_IRQ_SOURCE_DMCUB_OUTBOX;
1012
1013         ret = dc_interrupt_set(ctx->dc, irq_source, enable);
1014
1015         DRM_DEBUG_DRIVER("Dmub trace irq %sabling: r=%d\n",
1016                          enable ? "en" : "dis", ret);
1017         return ret;
1018 }
1019
1020 void dm_helpers_mst_enable_stream_features(const struct dc_stream_state *stream)
1021 {
1022         /* TODO: virtual DPCD */
1023         struct dc_link *link = stream->link;
1024         union down_spread_ctrl old_downspread;
1025         union down_spread_ctrl new_downspread;
1026
1027         if (link->aux_access_disabled)
1028                 return;
1029
1030         if (!dm_helpers_dp_read_dpcd(link->ctx, link, DP_DOWNSPREAD_CTRL,
1031                                      &old_downspread.raw,
1032                                      sizeof(old_downspread)))
1033                 return;
1034
1035         new_downspread.raw = old_downspread.raw;
1036         new_downspread.bits.IGNORE_MSA_TIMING_PARAM =
1037                 (stream->ignore_msa_timing_param) ? 1 : 0;
1038
1039         if (new_downspread.raw != old_downspread.raw)
1040                 dm_helpers_dp_write_dpcd(link->ctx, link, DP_DOWNSPREAD_CTRL,
1041                                          &new_downspread.raw,
1042                                          sizeof(new_downspread));
1043 }
1044
1045 bool dm_helpers_dp_handle_test_pattern_request(
1046                 struct dc_context *ctx,
1047                 const struct dc_link *link,
1048                 union link_test_pattern dpcd_test_pattern,
1049                 union test_misc dpcd_test_params)
1050 {
1051         enum dp_test_pattern test_pattern;
1052         enum dp_test_pattern_color_space test_pattern_color_space =
1053                         DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED;
1054         enum dc_color_depth requestColorDepth = COLOR_DEPTH_UNDEFINED;
1055         enum dc_pixel_encoding requestPixelEncoding = PIXEL_ENCODING_UNDEFINED;
1056         struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
1057         struct pipe_ctx *pipe_ctx = NULL;
1058         struct amdgpu_dm_connector *aconnector = link->priv;
1059         int i;
1060
1061         for (i = 0; i < MAX_PIPES; i++) {
1062                 if (pipes[i].stream == NULL)
1063                         continue;
1064
1065                 if (pipes[i].stream->link == link && !pipes[i].top_pipe &&
1066                         !pipes[i].prev_odm_pipe) {
1067                         pipe_ctx = &pipes[i];
1068                         break;
1069                 }
1070         }
1071
1072         if (pipe_ctx == NULL)
1073                 return false;
1074
1075         switch (dpcd_test_pattern.bits.PATTERN) {
1076         case LINK_TEST_PATTERN_COLOR_RAMP:
1077                 test_pattern = DP_TEST_PATTERN_COLOR_RAMP;
1078         break;
1079         case LINK_TEST_PATTERN_VERTICAL_BARS:
1080                 test_pattern = DP_TEST_PATTERN_VERTICAL_BARS;
1081         break; /* black and white */
1082         case LINK_TEST_PATTERN_COLOR_SQUARES:
1083                 test_pattern = (dpcd_test_params.bits.DYN_RANGE ==
1084                                 TEST_DYN_RANGE_VESA ?
1085                                 DP_TEST_PATTERN_COLOR_SQUARES :
1086                                 DP_TEST_PATTERN_COLOR_SQUARES_CEA);
1087         break;
1088         default:
1089                 test_pattern = DP_TEST_PATTERN_VIDEO_MODE;
1090         break;
1091         }
1092
1093         if (dpcd_test_params.bits.CLR_FORMAT == 0)
1094                 test_pattern_color_space = DP_TEST_PATTERN_COLOR_SPACE_RGB;
1095         else
1096                 test_pattern_color_space = dpcd_test_params.bits.YCBCR_COEFS ?
1097                                 DP_TEST_PATTERN_COLOR_SPACE_YCBCR709 :
1098                                 DP_TEST_PATTERN_COLOR_SPACE_YCBCR601;
1099
1100         switch (dpcd_test_params.bits.BPC) {
1101         case 0: // 6 bits
1102                 requestColorDepth = COLOR_DEPTH_666;
1103                 break;
1104         case 1: // 8 bits
1105                 requestColorDepth = COLOR_DEPTH_888;
1106                 break;
1107         case 2: // 10 bits
1108                 requestColorDepth = COLOR_DEPTH_101010;
1109                 break;
1110         case 3: // 12 bits
1111                 requestColorDepth = COLOR_DEPTH_121212;
1112                 break;
1113         default:
1114                 break;
1115         }
1116
1117         switch (dpcd_test_params.bits.CLR_FORMAT) {
1118         case 0:
1119                 requestPixelEncoding = PIXEL_ENCODING_RGB;
1120                 break;
1121         case 1:
1122                 requestPixelEncoding = PIXEL_ENCODING_YCBCR422;
1123                 break;
1124         case 2:
1125                 requestPixelEncoding = PIXEL_ENCODING_YCBCR444;
1126                 break;
1127         default:
1128                 requestPixelEncoding = PIXEL_ENCODING_RGB;
1129                 break;
1130         }
1131
1132         if ((requestColorDepth != COLOR_DEPTH_UNDEFINED
1133                 && pipe_ctx->stream->timing.display_color_depth != requestColorDepth)
1134                 || (requestPixelEncoding != PIXEL_ENCODING_UNDEFINED
1135                 && pipe_ctx->stream->timing.pixel_encoding != requestPixelEncoding)) {
1136                 DC_LOG_DEBUG("%s: original bpc %d pix encoding %d, changing to %d  %d\n",
1137                                 __func__,
1138                                 pipe_ctx->stream->timing.display_color_depth,
1139                                 pipe_ctx->stream->timing.pixel_encoding,
1140                                 requestColorDepth,
1141                                 requestPixelEncoding);
1142                 pipe_ctx->stream->timing.display_color_depth = requestColorDepth;
1143                 pipe_ctx->stream->timing.pixel_encoding = requestPixelEncoding;
1144
1145                 dc_link_update_dsc_config(pipe_ctx);
1146
1147                 aconnector->timing_changed = true;
1148                 /* store current timing */
1149                 if (aconnector->timing_requested)
1150                         *aconnector->timing_requested = pipe_ctx->stream->timing;
1151                 else
1152                         DC_LOG_ERROR("%s: timing storage failed\n", __func__);
1153
1154         }
1155
1156         dc_link_dp_set_test_pattern(
1157                 (struct dc_link *) link,
1158                 test_pattern,
1159                 test_pattern_color_space,
1160                 NULL,
1161                 NULL,
1162                 0);
1163
1164         return false;
1165 }
1166
1167 void dm_set_phyd32clk(struct dc_context *ctx, int freq_khz)
1168 {
1169        // TODO
1170 }
1171
1172 void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable)
1173 {
1174         /* TODO: add periodic detection implementation */
1175 }
1176
1177 void dm_helpers_dp_mst_update_branch_bandwidth(
1178                 struct dc_context *ctx,
1179                 struct dc_link *link)
1180 {
1181         // TODO
1182 }
1183
1184 static bool dm_is_freesync_pcon_whitelist(const uint32_t branch_dev_id)
1185 {
1186         bool ret_val = false;
1187
1188         switch (branch_dev_id) {
1189         case DP_BRANCH_DEVICE_ID_0060AD:
1190         case DP_BRANCH_DEVICE_ID_00E04C:
1191         case DP_BRANCH_DEVICE_ID_90CC24:
1192                 ret_val = true;
1193                 break;
1194         default:
1195                 break;
1196         }
1197
1198         return ret_val;
1199 }
1200
1201 enum adaptive_sync_type dm_get_adaptive_sync_support_type(struct dc_link *link)
1202 {
1203         struct dpcd_caps *dpcd_caps = &link->dpcd_caps;
1204         enum adaptive_sync_type as_type = ADAPTIVE_SYNC_TYPE_NONE;
1205
1206         switch (dpcd_caps->dongle_type) {
1207         case DISPLAY_DONGLE_DP_HDMI_CONVERTER:
1208                 if (dpcd_caps->adaptive_sync_caps.dp_adap_sync_caps.bits.ADAPTIVE_SYNC_SDP_SUPPORT == true &&
1209                         dpcd_caps->allow_invalid_MSA_timing_param == true &&
1210                         dm_is_freesync_pcon_whitelist(dpcd_caps->branch_dev_id))
1211                         as_type = FREESYNC_TYPE_PCON_IN_WHITELIST;
1212                 break;
1213         default:
1214                 break;
1215         }
1216
1217         return as_type;
1218 }