From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
Date: Fri, 9 Feb 2018 12:51:01 -0500
Subject: drm/amd/display: Fix increment when sampling OTF in DCE
Git-commit: ec47734a6d0e82c132e3e0883f2f663f138da43a
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Previously, the number of software segmets per region was reduced to 16.
This needs to be reflected in the sampling distance (increment) used when
translating to the hardware format.
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@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/dce110/dce110_hw_sequencer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -481,7 +481,7 @@ dce110_translate_regamma_to_hw_format(co
j = 0;
for (k = 0; k < (region_end - region_start); k++) {
- increment = 32 / (1 << seg_distr[k]);
+ increment = NUMBER_SW_SEGMENTS / (1 << seg_distr[k]);
start_index = (region_start + k + MAX_LOW_POINT) *
NUMBER_SW_SEGMENTS;
for (i = start_index; i < start_index + NUMBER_SW_SEGMENTS;