diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3557-drm-amd-display-Use-hardware-max-low-point-when-samp.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3557-drm-amd-display-Use-hardware-max-low-point-when-samp.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3557-drm-amd-display-Use-hardware-max-low-point-when-samp.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3557-drm-amd-display-Use-hardware-max-low-point-when-samp.patch new file mode 100644 index 00000000..cd235b1e --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3557-drm-amd-display-Use-hardware-max-low-point-when-samp.patch @@ -0,0 +1,47 @@ +From 91195b76b30dc46994cd0831785079c3a57b3357 Mon Sep 17 00:00:00 2001 +From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com> +Date: Fri, 2 Feb 2018 09:46:41 -0500 +Subject: [PATCH 3557/4131] drm/amd/display: Use hardware max low point when + sampling OTF + +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. + +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> +--- + 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 9e97cd74..bc69864 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; +-- +2.7.4 + |