From: Chiawen Huang <chiawen.hu...@amd.com>
[ Upstream commit 9c580e8f6cd6524d4e2c3490c440110526f7ddd6 ]
[Why]
Enabling stream with tg lock makes config settings
pending causing the garbage until tg unlock.
[How]
Keep the original lock mechanism
The driver doesn't lock tg if plane_state is null.
Reviewed-by: Anthony Koo <anthony....@amd.com>
Acked-by: Tom Chung <chiahsuan.ch...@amd.com>
Signed-off-by: Chiawen Huang <chiawen.hu...@amd.com>
Tested-by: Daniel Wheeler <daniel.whee...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index e3a62873c0e7..d9ab27991535 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -108,6 +108,7 @@ void dcn10_lock_all_pipes(struct dc *dc,
*/
if (pipe_ctx->top_pipe ||
!pipe_ctx->stream ||
+ !pipe_ctx->plane_state ||
!tg->funcs->is_tg_enabled(tg))
continue;
--
2.35.1
