diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3399-drm-amd-display-fix-issue-where-252-255-values-are-c.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3399-drm-amd-display-fix-issue-where-252-255-values-are-c.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3399-drm-amd-display-fix-issue-where-252-255-values-are-c.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3399-drm-amd-display-fix-issue-where-252-255-values-are-c.patch new file mode 100644 index 00000000..9d73c5ef --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3399-drm-amd-display-fix-issue-where-252-255-values-are-c.patch @@ -0,0 +1,41 @@ +From 9ae5bc2f604a7415e688a2ca56e95809282f9644 Mon Sep 17 00:00:00 2001 +From: Anthony Koo <Anthony.Koo@amd.com> +Date: Fri, 12 Jul 2019 10:52:54 -0400 +Subject: [PATCH 3399/4256] drm/amd/display: fix issue where 252-255 values are + clipped + +[Why] +When endpoint is at the boundary of a region, such as at 2^0=1 +we find that the last segment has a sharp slope and some points +are clipped at the top. + +[How] +If end point is 1, which is exactly at the 2^0 region boundary, we +need to program an additional region beyond this point. + +Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> +Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c +index 7469333a2c8a..8166fdbacd73 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c +@@ -357,9 +357,10 @@ bool cm_helper_translate_curve_to_hw_format( + seg_distr[7] = 4; + seg_distr[8] = 4; + seg_distr[9] = 4; ++ seg_distr[10] = 1; + + region_start = -10; +- region_end = 0; ++ region_end = 1; + } + + for (i = region_end - region_start; i < MAX_REGIONS_NUMBER ; i++) +-- +2.17.1 + |