From: Charlene Liu <[email protected]> Don't fall back to dual link DVI mode if the connector is single Link only.
Change-Id: Ifef1bc5d4e38ab163e13de33fc8494baaf3b1d6b Signed-off-by: Charlene Liu <[email protected]> Reviewed-by: Dmytro Laktyushkin <[email protected]> Acked-by: Harry Wentland <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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 236c8e9c0f6a..9f6a99f850ec 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1204,6 +1204,7 @@ bool resource_validate_attach_surfaces( /* Maximum TMDS single link pixel clock 165MHz */ #define TMDS_MAX_PIXEL_CLOCK_IN_KHZ 165000 +#define TMDS_MAX_PIXEL_CLOCK_IN_KHZ_UPMOST 297000 static void set_stream_engine_in_use( struct resource_context *res_ctx, @@ -1331,7 +1332,8 @@ static void update_stream_signal(struct core_stream *stream) } if (dc_is_dvi_signal(stream->signal)) { - if (stream->public.timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ) + if (stream->public.timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ_UPMOST && + stream->public.sink->sink_signal != SIGNAL_TYPE_DVI_SINGLE_LINK) stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK; else stream->signal = SIGNAL_TYPE_DVI_SINGLE_LINK; -- 2.11.0 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
