From: Paul Hsieh paul.hsieh@amd.com
[ Upstream commit 1090d58d4815b1fcd95a80987391006c86398b4c ]
[Why] When disable driver, OS will set backlight optimization then do stop device. But this flag will cause driver to enable ABM when driver disabled.
[How] Send ABM disable command before destroy ABM construct
Signed-off-by: Paul Hsieh paul.hsieh@amd.com Reviewed-by: Anthony Koo Anthony.Koo@amd.com Acked-by: Bhawanpreet Lakha Bhawanpreet.Lakha@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/dce/dce_abm.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c index 29294db1a96b..070ab56a8aca 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c @@ -474,6 +474,8 @@ void dce_abm_destroy(struct abm **abm) { struct dce_abm *abm_dce = TO_DCE_ABM(*abm);
+ abm_dce->base.funcs->set_abm_immediate_disable(*abm); + kfree(abm_dce); *abm = NULL; }