drm/amd/display: Adding dm controlled signal type in dc_stream

- Adding dm controlled signal type in dc_stream
- Adding fallback to dvi signal when output signal is hdmi and the connector
  type is not

Signed-off-by: Sylvia Tsai <sylvia.tsai@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Sylvia Tsai <Sylvia.Tsai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 069f588..2d40864 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1237,22 +1237,22 @@ static struct audio *find_first_free_audio(struct resource_context *res_ctx)
 
 static void update_stream_signal(struct core_stream *stream)
 {
-       const struct dc_sink *dc_sink = stream->public.sink;
-
-       if (dc_sink->sink_signal == SIGNAL_TYPE_NONE)
-               stream->signal = stream->sink->link->public.connector_signal;
-       else if (dc_sink->sink_signal == SIGNAL_TYPE_DVI_SINGLE_LINK ||
-                       dc_sink->sink_signal == SIGNAL_TYPE_DVI_DUAL_LINK)
-               /* For asic supports dual link DVI, we should adjust signal type
-                * based on timing pixel clock. If pixel clock more than 165Mhz,
-                * signal is dual link, otherwise, single link.
-                */
-               if (stream->public.timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ)
-                       stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
+       if (stream->public.output_signal == SIGNAL_TYPE_NONE) {
+               const struct dc_sink *dc_sink = stream->public.sink;
+
+               if (dc_sink->sink_signal == SIGNAL_TYPE_NONE)
+                       stream->signal =
+                                       stream->sink->link->
+                                       public.connector_signal;
                else
-                       stream->signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
-       else
-               stream->signal = dc_sink->sink_signal;
+                       stream->signal = dc_sink->sink_signal;
+       } else {
+               stream->signal = stream->public.output_signal;
+       }
+
+       if (stream->signal == SIGNAL_TYPE_DVI_SINGLE_LINK &&
+               stream->public.timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ)
+               stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
 }
 
 bool resource_is_stream_unchanged(

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index a27a6ab..97af8f6 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -411,6 +411,7 @@ enum surface_update_type {
 struct dc_stream {
        const struct dc_sink *sink;
        struct dc_crtc_timing timing;
+       enum signal_type output_signal;
 
        enum dc_color_space output_color_space;