From: "Leo (Sunpeng) Li" <sunpeng...@amd.com>

The MAX_LOW_POINT macro should reflect the maximum low point within
hardware. Otherwise, sampling for the hardware points from the output
transfer function (OTF) will be incorrect.

Also, fix usage of MAX_LOW_POINT accordingly.

Change-Id: I6affb8e987ac786c2c9ac8fba4bee5384dc54d07
Signed-off-by: Leo (Sunpeng) Li <sunpeng...@amd.com>
Reviewed-by: Krunoslav Kovac <krunoslav.ko...@amd.com>
Acked-by: Harry Wentland <harry.wentl...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

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 9e97cd74b0ec..bc698644d42a 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
@@ -409,7 +409,7 @@ static bool convert_to_custom_float(struct pwl_result_data 
*rgb_resulted,
        return true;
 }
 
-#define MAX_LOW_POINT      11
+#define MAX_LOW_POINT      25
 #define NUMBER_REGIONS     16
 #define NUMBER_SW_SEGMENTS 16
 
@@ -443,8 +443,8 @@ dce110_translate_regamma_to_hw_format(const struct 
dc_transfer_func *output_tf,
                /* 16 segments
                 * segments are from 2^-11 to 2^5
                 */
-               region_start = -MAX_LOW_POINT;
-               region_end = NUMBER_REGIONS - MAX_LOW_POINT;
+               region_start = -11;
+               region_end = region_start + NUMBER_REGIONS;
 
                for (i = 0; i < NUMBER_REGIONS; i++)
                        seg_distr[i] = 4;
-- 
2.14.1

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Reply via email to