From 00dceed4f666509b574855a291858aae3a5781a0 Mon Sep 17 00:00:00 2001
From: Wyatt Wood <wyatt.wood@amd.com>
Date: Mon, 30 Mar 2020 09:11:09 -0400
Subject: drm/amd/display: Add user backlight level reg write
Git-commit: 4c0de7de4cd568d16032d67a768271fb4977f94f
Patch-mainline: v5.8-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
[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>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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 06435ecaf6a3..59b2f0b621bd 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;
--
2.28.0