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drm/amd/display: Update Fixed VS/PE Retimer Sequence

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[WHY/HOW]
Add a new AUX sequence provided by vendor to improve
interop with specific display configurations.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michael Strauss
2023-10-13 12:13:28 -04:00
committed by Alex Deucher
parent 2e58320090
commit 4fc26c2f91
1 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_fixed_vs_pe_retimer.c
+10
View File
@@ -205,6 +205,7 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence_legacy(
const uint8_t vendor_lttpr_write_data_4lane_3[4] = {0x1, 0x6D, 0xF2, 0x18};
const uint8_t vendor_lttpr_write_data_4lane_4[4] = {0x1, 0x6C, 0xF2, 0x03};
const uint8_t vendor_lttpr_write_data_4lane_5[4] = {0x1, 0x03, 0xF3, 0x06};
const uint8_t vendor_lttpr_write_data_dpmf[4] = {0x1, 0x6, 0x70, 0x87};
enum link_training_result status = LINK_TRAINING_SUCCESS;
uint8_t lane = 0;
union down_spread_ctrl downspread = {0};
@@ -293,6 +294,10 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence_legacy(
DP_DOWNSPREAD_CTRL,
lt_settings->link_settings.link_spread);
link_configure_fixed_vs_pe_retimer(link->ddc,
&vendor_lttpr_write_data_dpmf[0],
sizeof(vendor_lttpr_write_data_dpmf));
if (lt_settings->link_settings.lane_count == LANE_COUNT_FOUR) {
link_configure_fixed_vs_pe_retimer(link->ddc,
&vendor_lttpr_write_data_4lane_1[0], sizeof(vendor_lttpr_write_data_4lane_1));
@@ -552,6 +557,7 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence(
const uint8_t vendor_lttpr_write_data_4lane_3[4] = {0x1, 0x6D, 0xF2, 0x18};
const uint8_t vendor_lttpr_write_data_4lane_4[4] = {0x1, 0x6C, 0xF2, 0x03};
const uint8_t vendor_lttpr_write_data_4lane_5[4] = {0x1, 0x03, 0xF3, 0x06};
const uint8_t vendor_lttpr_write_data_dpmf[4] = {0x1, 0x6, 0x70, 0x87};
enum link_training_result status = LINK_TRAINING_SUCCESS;
uint8_t lane = 0;
union down_spread_ctrl downspread = {0};
@@ -639,6 +645,10 @@ enum link_training_result dp_perform_fixed_vs_pe_training_sequence(
DP_DOWNSPREAD_CTRL,
lt_settings->link_settings.link_spread);
link_configure_fixed_vs_pe_retimer(link->ddc,
&vendor_lttpr_write_data_dpmf[0],
sizeof(vendor_lttpr_write_data_dpmf));
if (lt_settings->link_settings.lane_count == LANE_COUNT_FOUR) {
link_configure_fixed_vs_pe_retimer(link->ddc,
&vendor_lttpr_write_data_4lane_1[0], sizeof(vendor_lttpr_write_data_4lane_1));