From: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Date: Wed, 4 Jul 2018 11:31:40 -0400
Subject: drm/amd/display: properly turn autocal off
Git-commit: ec95213112dca6111eb7561ae6384f77017dfd1f
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
[why]
Currently we do not turn off autocal when scaling is in bypass.
In case vbios enalbes auto scale and our first mode set is a non-scaled
mode we have autocal on causing screen corruption.
[how]
moves turning autocal off to be first thing done during scaler setup
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
@@ -655,6 +655,12 @@ void dpp1_dscl_set_scaler_manual_scale(
dpp->scl_data = *scl_data;
+ /* Autocal off */
+ REG_SET_3(DSCL_AUTOCAL, 0,
+ AUTOCAL_MODE, AUTOCAL_MODE_OFF,
+ AUTOCAL_NUM_PIPE, 0,
+ AUTOCAL_PIPE_ID, 0);
+
/* Recout */
dpp1_dscl_set_recout(dpp, &scl_data->recout);
@@ -678,12 +684,6 @@ void dpp1_dscl_set_scaler_manual_scale(
if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS)
return;
- /* Autocal off */
- REG_SET_3(DSCL_AUTOCAL, 0,
- AUTOCAL_MODE, AUTOCAL_MODE_OFF,
- AUTOCAL_NUM_PIPE, 0,
- AUTOCAL_PIPE_ID, 0);
-
/* Black offsets */
if (ycbcr)
REG_SET_2(SCL_BLACK_OFFSET, 0,