From: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Date: Fri, 9 Feb 2018 17:51:01 +0000 (-0500)
Subject: drm/amd/display: Fix increment when sampling OTF in DCE
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=ec47734a6d0e82c132e3e0883f2f663f138da43a;p=openwrt%2Fstaging%2Fblogic.git

drm/amd/display: Fix increment when sampling OTF in DCE

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>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index bc698644d42a..0422c72a7579 100644
--- 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(const struct dc_transfer_func *output_tf,
 
 	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;