6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tom Chung <chiahsuan.chung@xxxxxxx>
commit b0a3e840ad287c33a86b5515d606451b7df86ad4 upstream.
[Why]
The enum DC_PSR_VERSION_SU_1 of psr_version is 1 and
DC_PSR_VERSION_UNSUPPORTED is 0xFFFFFFFF.
The original code may has chance trigger the amdgpu_dm_psr_enable()
while psr version is set to DC_PSR_VERSION_UNSUPPORTED.
[How]
Modify the condition to psr->psr_version == DC_PSR_VERSION_SU_1
Reviewed-by: Sun peng Li <sunpeng.li@xxxxxxx>
Signed-off-by: Tom Chung <chiahsuan.chung@xxxxxxx>
Signed-off-by: Roman Li <roman.li@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
(cherry picked from commit f765e7ce0417f8dc38479b4b495047c397c16902)
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8922,7 +8922,7 @@ static void amdgpu_dm_enable_self_refres
(current_ts - psr->psr_dirty_rects_change_timestamp_ns) > 500000000) {
if (pr->replay_feature_enabled && !pr->replay_allow_active)
amdgpu_dm_replay_enable(acrtc_state->stream, true);
- if (psr->psr_version >= DC_PSR_VERSION_SU_1 &&
+ if (psr->psr_version == DC_PSR_VERSION_SU_1 &&
!psr->psr_allow_active && !aconn->disallow_edp_enter_psr)
amdgpu_dm_psr_enable(acrtc_state->stream);
}
