diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2923-drm-amd-display-Correct-fixed-point-calculation.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2923-drm-amd-display-Correct-fixed-point-calculation.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2923-drm-amd-display-Correct-fixed-point-calculation.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2923-drm-amd-display-Correct-fixed-point-calculation.patch new file mode 100644 index 00000000..11ca9c22 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2923-drm-amd-display-Correct-fixed-point-calculation.patch @@ -0,0 +1,32 @@ +From 294e7992f0fa86524d2272ce0bdbd8db3b776184 Mon Sep 17 00:00:00 2001 +From: Vitaly Prosyak <vitaly.prosyak@amd.com> +Date: Fri, 24 Nov 2017 15:52:33 -0600 +Subject: [PATCH 2923/4131] drm/amd/display: Correct fixed point calculation. + +When convert from fixed31_32 to other fixed point +format use math operation round instead of floor. + +Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com> +Reviewed-by: Roman Li <Roman.Li@amd.com> +Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +--- + drivers/gpu/drm/amd/display/dc/basics/conversion.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.c b/drivers/gpu/drm/amd/display/dc/basics/conversion.c +index 23c9a0e..3109649 100644 +--- a/drivers/gpu/drm/amd/display/dc/basics/conversion.c ++++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.c +@@ -46,7 +46,7 @@ uint16_t fixed_point_to_int_frac( + arg)); + + if (d <= (uint16_t)(1 << integer_bits) - (1 / (uint16_t)divisor)) +- numerator = (uint16_t)dal_fixed31_32_floor( ++ numerator = (uint16_t)dal_fixed31_32_round( + dal_fixed31_32_mul_int( + arg, + divisor)); +-- +2.7.4 + |