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authorJulian Parkin <julian.parkin@amd.com>2019-06-25 14:55:53 -0400
committerAlex Deucher <alexander.deucher@amd.com>2019-07-18 14:27:26 -0500
commit8897810adfa768b0c127c1e204bedc4449e3f945 (patch)
tree4edff11bc6d10f6d7b62bd3a45b1cc4263fb571c /drivers/gpu/drm/amd/display/dc/core/dc_resource.c
parent6da16270ee026a0397a67f5e2b4661b6dfa45afb (diff)
drm/amd/display: Fix dc_create failure handling and 666 color depths
[Why] It is possible (but very unlikely) that constructing dc fails before current_state is created. We support 666 color depth in some scenarios, but this isn't handled in get_norm_pix_clk. It uses exactly the same pixel clock as the 888 case. [How] Check for non null current_state before destructing. Add case for 666 color depth to get_norm_pix_clk to avoid assertion. Signed-off-by: Julian Parkin <julian.parkin@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_resource.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_resource.c1
1 files changed, 1 insertions, 0 deletions
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 e4d0035b4ed4..6f9d310de542 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1855,6 +1855,7 @@ static int get_norm_pix_clk(const struct dc_crtc_timing *timing)
pix_clk /= 2;
if (timing->pixel_encoding != PIXEL_ENCODING_YCBCR422) {
switch (timing->display_color_depth) {
+ case COLOR_DEPTH_666:
case COLOR_DEPTH_888:
normalized_pix_clk = pix_clk;
break;