diff options
Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0501-drm-amd-display-fix-single-link-black-screen.patch')
| -rw-r--r-- | meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0501-drm-amd-display-fix-single-link-black-screen.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0501-drm-amd-display-fix-single-link-black-screen.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0501-drm-amd-display-fix-single-link-black-screen.patch new file mode 100644 index 00000000..dfb897ad --- /dev/null +++ b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0501-drm-amd-display-fix-single-link-black-screen.patch @@ -0,0 +1,41 @@ +From 63036510687ff4a344cd2d58597f9b000112d3c7 Mon Sep 17 00:00:00 2001 +From: Charlene Liu <charlene.liu@amd.com> +Date: Mon, 5 Jun 2017 16:54:33 -0400 +Subject: [PATCH 0501/4131] drm/amd/display: fix single link black screen + +Don't fall back to dual link DVI mode if the connector +is single Link only. + +Signed-off-by: Charlene Liu <charlene.liu@amd.com> +Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@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_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 236c8e9..9f6a99f8 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; +-- +2.7.4 + |