Commit d6826195 authored by George Shen's avatar George Shen Committed by Alex Deucher
Browse files

drm/amd/display: Apply LTTPR workarounds to non-transparent mode 



[Why]
Some of the vendor-specific workarounds added for transparent mode
also need to be applied to non-transparent mode in order to succeed
link training consistently.

[How]
Remove transparent mode check for the required workarounds.

Reviewed-by: default avatarJun Lei <Jun.Lei@amd.com>
Acked-by: default avatarPavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: default avatarGeorge Shen <George.Shen@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent aed1faab

drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c

+5 −4
Original line number Diff line number Diff line
@@ -620,10 +620,12 @@ enum dc_status dpcd_set_link_settings( 
#endif

		if (link->dc->debug.apply_vendor_specific_lttpr_wa &&

					(link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN) &&

					link->lttpr_mode == LTTPR_MODE_TRANSPARENT) {

					link->lttpr_mode == LTTPR_MODE_TRANSPARENT)

			vendor_specific_lttpr_wa_one_start(link);



		if (link->dc->debug.apply_vendor_specific_lttpr_wa &&

					(link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN))

			vendor_specific_lttpr_wa_one_two(link, rate);

		}



		status = core_link_write_dpcd(link, DP_LINK_BW_SET, &rate, 1);

	}
@@ -1494,8 +1496,7 @@ static enum link_training_result perform_clock_recovery_sequence( 
			wait_time_microsec = TRAINING_AUX_RD_INTERVAL;



		if (link->dc->debug.apply_vendor_specific_lttpr_wa &&

				(link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN) &&

				link->lttpr_mode == LTTPR_MODE_TRANSPARENT) {

				(link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN)) {

			wait_time_microsec = 16000;

		}