diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0446-drm-amd-display-fix-4K-stereo-screen-flash-issue.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0446-drm-amd-display-fix-4K-stereo-screen-flash-issue.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0446-drm-amd-display-fix-4K-stereo-screen-flash-issue.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0446-drm-amd-display-fix-4K-stereo-screen-flash-issue.patch new file mode 100644 index 00000000..98eee8f1 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0446-drm-amd-display-fix-4K-stereo-screen-flash-issue.patch @@ -0,0 +1,34 @@ +From 7fee6299feb0a685740891ca9fb0abab9c69f6d4 Mon Sep 17 00:00:00 2001 +From: Charlene Liu <charlene.liu@amd.com> +Date: Wed, 12 Sep 2018 18:22:16 -0400 +Subject: [PATCH 0446/2940] drm/amd/display: fix 4K stereo screen flash issue + +[Why] +HDMI_scramber is not enabled for pixel rate >340Mhz. +[How] +Calculate the phy clock to include the Hw frame packing factor. + +Signed-off-by: Charlene Liu <charlene.liu@amd.com> +Reviewed-by: Chris Park <Chris.Park@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++ + 1 file changed, 3 insertions(+) + +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 438c18ab1749..a500381c7973 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +@@ -1975,6 +1975,9 @@ static void calculate_phy_pix_clks(struct dc_stream_state *stream) + else + stream->phy_pix_clk = + stream->timing.pix_clk_khz; ++ ++ if (stream->timing.timing_3d_format == TIMING_3D_FORMAT_HW_FRAME_PACKING) ++ stream->phy_pix_clk *= 2; + } + + enum dc_status resource_map_pool_resources( +-- +2.17.1 + |