diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4710-drm-amd-display-Change-HDR_MULT-check.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4710-drm-amd-display-Change-HDR_MULT-check.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4710-drm-amd-display-Change-HDR_MULT-check.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4710-drm-amd-display-Change-HDR_MULT-check.patch new file mode 100644 index 00000000..9d9cfc50 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4710-drm-amd-display-Change-HDR_MULT-check.patch @@ -0,0 +1,47 @@ +From d0bde5aa157cf73ba730a8c950acbeface6e6318 Mon Sep 17 00:00:00 2001 +From: Krunoslav Kovac <Krunoslav.Kovac@amd.com> +Date: Fri, 15 Nov 2019 10:00:46 -0500 +Subject: [PATCH 4710/4736] drm/amd/display: Change HDR_MULT check + +[Why] +Currently we require HDR_MULT >= 1.0 +There are scenarios where we need < 1.0 + +[How] +Only guard against 0 - it will black-screen image. +It is up to higher-level logic to decide what HDR_MULT +values are allowed in each particular case. + +Signed-off-by: Krunoslav Kovac <Krunoslav.Kovac@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_hw_sequencer.c | 6 +----- + 1 file changed, 1 insertion(+), 5 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +index c085a561b24c..35599d4ba6f6 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +@@ -2392,17 +2392,13 @@ void dcn10_set_hdr_multiplier(struct pipe_ctx *pipe_ctx) + struct fixed31_32 multiplier = pipe_ctx->plane_state->hdr_mult; + uint32_t hw_mult = 0x1f000; // 1.0 default multiplier + struct custom_float_format fmt; +- bool mult_negative; // True if fixed31_32 sign bit indicates negative value +- uint32_t mult_int; // int component of fixed31_32 + + fmt.exponenta_bits = 6; + fmt.mantissa_bits = 12; + fmt.sign = true; + +- mult_negative = multiplier.value >> 63 != 0; +- mult_int = multiplier.value >> 32; + +- if (mult_int && !mult_negative) // Check if greater than 1 ++ if (!dc_fixpt_eq(multiplier, dc_fixpt_from_int(0))) // check != 0 + convert_to_custom_float_format(multiplier, &fmt, &hw_mult); + + pipe_ctx->plane_res.dpp->funcs->dpp_set_hdr_multiplier( +-- +2.17.1 + |