From 4c0de7de4cd568d16032d67a768271fb4977f94f Mon Sep 17 00:00:00 2001
From: Wyatt Wood <wyatt.wood@amd.com>
Date: Mon, 30 Mar 2020 09:11:09 -0400
Subject: [PATCH] drm/amd/display: Add user backlight level reg write

[Why]
Porting abm from dmcu to dmcub missed one register write.

[How]
Add this register write in the SetBacklightLevel sequence.

Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c
index 06435ec..59b2f0b 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c
@@ -136,6 +136,8 @@ static void dmcub_set_backlight_level(
 
 	dmub_abm_set_pipe(&dce_abm->base, otg_inst);
 
+	REG_UPDATE(BL1_PWM_USER_LEVEL, BL1_PWM_USER_LEVEL, backlight_pwm_u16_16);
+
 	if (otg_inst == 0)
 		frame_ramp = 0;
 
-- 
2.7.4