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drm/amd/display: add monitor patch for delay after DP receive power up

Signed-off-by: Martin Tsai <martin.tsai@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Martin Tsai 7 years ago
parent
commit
b686ee20a9

+ 6 - 0
drivers/gpu/drm/amd/display/dc/core/dc_link.c

@@ -1260,6 +1260,12 @@ static enum dc_status enable_link_dp(
 		pipe_ctx->clock_source->id,
 		&link_settings);
 
+	if (stream->sink->edid_caps.panel_patch.dppowerup_delay > 0) {
+		int delay_dp_power_up_in_ms = stream->sink->edid_caps.panel_patch.dppowerup_delay;
+
+		msleep(delay_dp_power_up_in_ms);
+	}
+
 	panel_mode = dp_get_panel_mode(link);
 	dpcd_configure_panel_mode(link, panel_mode);
 

+ 1 - 0
drivers/gpu/drm/amd/display/dc/dc_types.h

@@ -195,6 +195,7 @@ union display_content_support {
 
 struct dc_panel_patch {
 	unsigned int disconnect_delay;
+	unsigned int dppowerup_delay;
 };
 
 struct dc_edid_caps {