From: Brandon Syu <Brandon.Syu@xxxxxxx>
[ Upstream commit cba4b52e431e5de3d8012281cfe194f1c39a9052 ]
[Why]
When system enters s3/s0i3, backlight PWM would set user level.
[How]
ABM disable function add keep current gain to avoid it.
Signed-off-by: Brandon Syu <Brandon.Syu@xxxxxxx>
Reviewed-by: Josip Pavic <Josip.Pavic@xxxxxxx>
Acked-by: Eryk Brol <eryk.brol@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dc_stream.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index 49aad691e687e..ccac2315a903a 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -222,7 +222,7 @@ struct dc_stream_state {
union stream_update_flags update_flags;
};
-#define ABM_LEVEL_IMMEDIATE_DISABLE 0xFFFFFFFF
+#define ABM_LEVEL_IMMEDIATE_DISABLE 255
struct dc_stream_update {
struct dc_stream_state *stream;
--
2.25.1
