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From f7ef3c7eff7bfbf7572393a9c8311811c7e4c0f3 Mon Sep 17 00:00:00 2001
From: Paul Hsieh <paul.hsieh@amd.com>
Date: Fri, 3 May 2019 23:50:10 +0800
Subject: [PATCH 1976/2940] drm/amd/display: Disable ABM before destroy ABM
struct
[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>
---
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 da96229db53a..2959c3c9390b 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c
@@ -473,6 +473,8 @@ 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;
}
--
2.17.1
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