drm/amd/display: eDP sequence BL off first then DP blank.

Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1279,13 +1279,12 @@ static enum dc_status enable_link_edp(
 	enum dc_status status;
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	struct dc_link *link = stream->sink->link;
-
+	/*in case it is not on*/
 	link->dc->hwss.edp_power_control(link, true);
 	link->dc->hwss.edp_wait_for_hpd_ready(link, true);
 
 	status = enable_link_dp(state, pipe_ctx);
 
-	link->dc->hwss.edp_backlight_control(link, true);
 
 	return status;
 }
@@ -2309,7 +2308,6 @@ void core_link_enable_stream(
 	if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
 		allocate_mst_payload(pipe_ctx);
 
-	if (dc_is_dp_signal(pipe_ctx->stream->signal))
 		core_dc->hwss.unblank_stream(pipe_ctx,
 			&pipe_ctx->stream->sink->link->cur_link_settings);
 }
@@ -2321,8 +2319,7 @@ void core_link_disable_stream(struct pipe_ctx *pipe_ctx, int option)
 	if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
 		deallocate_mst_payload(pipe_ctx);
 
-	if (pipe_ctx->stream->signal == SIGNAL_TYPE_EDP)
-		core_dc->hwss.edp_backlight_control(pipe_ctx->stream->sink->link, false);
+	core_dc->hwss.blank_stream(pipe_ctx);
 
 	core_dc->hwss.disable_stream(pipe_ctx, option);
 

drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c

@@ -821,6 +821,9 @@ void dce110_link_encoder_hw_init(
 	cntl.coherent = false;
 	cntl.hpd_sel = enc110->base.hpd_source;
 
+	if (enc110->base.connector.id == CONNECTOR_ID_EDP)
+		cntl.signal = SIGNAL_TYPE_EDP;
+
 	result = link_transmitter_control(enc110, &cntl);
 
 	if (result != BP_RESULT_OK) {

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

@@ -989,12 +989,31 @@ void dce110_unblank_stream(struct pipe_ctx *pipe_ctx,
 		struct dc_link_settings *link_settings)
 {
 	struct encoder_unblank_param params = { { 0 } };
+	struct dc_stream_state *stream = pipe_ctx->stream;
+	struct dc_link *link = stream->sink->link;
 
 	/* only 3 items below are used by unblank */
 	params.pixel_clk_khz =
 		pipe_ctx->stream->timing.pix_clk_khz;
 	params.link_settings.link_rate = link_settings->link_rate;
-	pipe_ctx->stream_res.stream_enc->funcs->dp_unblank(pipe_ctx->stream_res.stream_enc, &params);
+
+	if (dc_is_dp_signal(pipe_ctx->stream->signal))
+		pipe_ctx->stream_res.stream_enc->funcs->dp_unblank(pipe_ctx->stream_res.stream_enc, &params);
+
+	if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP)
+		link->dc->hwss.edp_backlight_control(link, true);
+}
+void dce110_blank_stream(struct pipe_ctx *pipe_ctx)
+{
+	struct encoder_unblank_param params = { { 0 } };
+	struct dc_stream_state *stream = pipe_ctx->stream;
+	struct dc_link *link = stream->sink->link;
+
+	if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP)
+		link->dc->hwss.edp_backlight_control(link, false);
+
+	if (dc_is_dp_signal(pipe_ctx->stream->signal))
+		pipe_ctx->stream_res.stream_enc->funcs->dp_blank(pipe_ctx->stream_res.stream_enc);
 }
 
 
@@ -2911,6 +2930,7 @@ static const struct hw_sequencer_funcs dce110_funcs = {
 	.enable_stream = dce110_enable_stream,
 	.disable_stream = dce110_disable_stream,
 	.unblank_stream = dce110_unblank_stream,
+	.blank_stream = dce110_blank_stream,
 	.enable_display_pipe_clock_gating = enable_display_pipe_clock_gating,
 	.enable_display_power_gating = dce110_enable_display_power_gating,
 	.disable_plane = dce110_power_down_fe,

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

@@ -52,6 +52,7 @@ void dce110_disable_stream(struct pipe_ctx *pipe_ctx, int option);
 void dce110_unblank_stream(struct pipe_ctx *pipe_ctx,
 		struct dc_link_settings *link_settings);
 
+void dce110_blank_stream(struct pipe_ctx *pipe_ctx);
 void dce110_update_info_frame(struct pipe_ctx *pipe_ctx);
 
 void dce110_set_avmute(struct pipe_ctx *pipe_ctx, bool enable);

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

@@ -2308,6 +2308,7 @@ static const struct hw_sequencer_funcs dcn10_funcs = {
 	.enable_stream = dce110_enable_stream,
 	.disable_stream = dce110_disable_stream,
 	.unblank_stream = dce110_unblank_stream,
+	.blank_stream = dce110_blank_stream,
 	.enable_display_power_gating = dcn10_dummy_display_power_gating,
 	.disable_plane = dcn10_disable_plane,
 	.pipe_control_lock = dcn10_pipe_control_lock,

drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h

@@ -149,6 +149,7 @@ struct hw_sequencer_funcs {
 	void (*unblank_stream)(struct pipe_ctx *pipe_ctx,
 			struct dc_link_settings *link_settings);
 
+	void (*blank_stream)(struct pipe_ctx *pipe_ctx);
 	void (*pipe_control_lock)(
 				struct dc *dc,
 				struct pipe_ctx *pipe,