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authorJonathan Gray <jsg@cvs.openbsd.org>2023-09-25 03:08:13 +0000
committerJonathan Gray <jsg@cvs.openbsd.org>2023-09-25 03:08:13 +0000
commit11e50a68135c91744ad3f4cb4aa6ec82b122efef (patch)
tree5e27b363563f17fd0fc1e85447b58b3377cb954d
parentf0eca8de59003036ac923668253a859e287ae394 (diff)
drm/amd/display: Blocking invalid 420 modes on HDMI TMDS for DCN31
From Leo Chen 2c0f5b6972ebfd6224065fd3c59d04f85a8af795 in linux-6.1.y/6.1.55 026a71babf48efb6b9884a3a66fa31aec9e1ea54 in mainline linux
-rw-r--r--sys/dev/pci/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/dev/pci/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/sys/dev/pci/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
index ebc04b72b28..9c84561ff3b 100644
--- a/sys/dev/pci/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
+++ b/sys/dev/pci/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
@@ -4133,7 +4133,9 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
}
if (v->OutputFormat[k] == dm_420 && v->HActive[k] > DCN31_MAX_FMT_420_BUFFER_WIDTH
&& v->ODMCombineEnablePerState[i][k] != dm_odm_combine_mode_4to1) {
- if (v->HActive[k] / 2 > DCN31_MAX_FMT_420_BUFFER_WIDTH) {
+ if (v->Output[k] == dm_hdmi) {
+ FMTBufferExceeded = true;
+ } else if (v->HActive[k] / 2 > DCN31_MAX_FMT_420_BUFFER_WIDTH) {
v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_4to1;
v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithODMCombine4To1;