From: Meenakshikumar Somasundaram <meenakshikumar.somasunda...@amd.com>
[ Upstream commit c4b8394e76adba4f50a3c2696c75b214a291e24a ]
[Why]
When otg workaround is applied during clock update, otgs of
tiled display went out of sync.
[How]
To call dc_trigger_sync() after clock update to sync otgs again.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahf...@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasunda...@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/core/dc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 3919e75fec16..ef151a1bc31c 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1680,6 +1680,10 @@ static enum dc_status dc_commit_state_no_check(struct dc
*dc, struct dc_state *c
wait_for_no_pipes_pending(dc, context);
/* pplib is notified if disp_num changed */
dc->hwss.optimize_bandwidth(dc, context);
+ /* Need to do otg sync again as otg could be out of sync due to
otg
+ * workaround applied during clock update
+ */
+ dc_trigger_sync(dc, context);
}
if (dc->ctx->dce_version >= DCE_VERSION_MAX)
--
2.43.0
