From: Joshua Aberback Date: Mon, 9 Jan 2017 14:43:08 -0500 Subject: drm/amd/display: When signal type of sink is none, use link type for stream Git-commit: 2796eaee69ce139aa5ae8047bf3071650893ce1d Patch-mainline: v4.15-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Signed-off-by: Joshua Aberback Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher Acked-by: Petr Tesarik --- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -984,19 +984,20 @@ static void update_stream_signal(struct { const struct dc_sink *dc_sink = stream->public.sink; - stream->signal = dc_sink->sink_signal; - /* 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 (dc_sink->sink_signal == SIGNAL_TYPE_DVI_SINGLE_LINK || - dc_sink->sink_signal == SIGNAL_TYPE_DVI_DUAL_LINK) { - if (stream->public.timing.pix_clk_khz > - TMDS_MAX_PIXEL_CLOCK_IN_KHZ) + 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; else stream->signal = SIGNAL_TYPE_DVI_SINGLE_LINK; - } + else + stream->signal = dc_sink->sink_signal; } bool resource_is_stream_unchanged(