Commit b9957475 authored by Brandon Syu's avatar Brandon Syu Committed by Alex Deucher
Browse files

drm/amd/display: Fix dual eDP abnormal display issue 



[WHY]
Driver use primary eDP link stream as the condition
to enable fastboot or not.
In dual eDP case, set second screen only,
this would cause slave eDP timing to be used on primary one.

[HOW]
Add a check for unmatched eDP link stream.

Reviewed-by: default avatarNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: default avatarBrandon Syu <Brandon.Syu@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ab644ea6

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

+5 −3
Original line number Diff line number Diff line
@@ -1817,15 +1817,17 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context) 
	get_edp_streams(context, edp_streams, &edp_stream_num);



	// Check fastboot support, disable on DCE8 because of blank screens

	if (edp_num && dc->ctx->dce_version != DCE_VERSION_8_0 &&

	if (edp_num && edp_stream_num && dc->ctx->dce_version != DCE_VERSION_8_0 &&

		    dc->ctx->dce_version != DCE_VERSION_8_1 &&

		    dc->ctx->dce_version != DCE_VERSION_8_3) {

		for (i = 0; i < edp_num; i++) {

			edp_link = edp_links[i];

			if (edp_link != edp_streams[0]->link)

				continue;

			// enable fastboot if backend is enabled on eDP

			if (edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc)) {

				/* Set optimization flag on eDP stream*/

				if (edp_stream_num && edp_link->link_status.link_active) {

				if (edp_link->link_status.link_active) {

					edp_stream = edp_streams[0];

					can_apply_edp_fast_boot = !is_edp_ilr_optimization_required(edp_stream->link, &edp_stream->timing);

					edp_stream->apply_edp_fast_boot_optimization = can_apply_edp_fast_boot;
@@ -1837,7 +1839,7 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context) 
			}

		}

		// We are trying to enable eDP, don't power down VDD

		if (edp_stream_num && can_apply_edp_fast_boot)

		if (can_apply_edp_fast_boot)

			keep_edp_vdd_on = true;

	}