diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4245-drm-amd-display-Allow-inverted-gamma.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4245-drm-amd-display-Allow-inverted-gamma.patch | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4245-drm-amd-display-Allow-inverted-gamma.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4245-drm-amd-display-Allow-inverted-gamma.patch new file mode 100644 index 00000000..a40334e4 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4245-drm-amd-display-Allow-inverted-gamma.patch @@ -0,0 +1,77 @@ +From fd51f9ea463e8b3c3f2d9827a8a591b1fd18f838 Mon Sep 17 00:00:00 2001 +From: Aidan Yang <Aidan.Yang@amd.com> +Date: Wed, 2 Oct 2019 10:47:31 -0400 +Subject: [PATCH 4245/4736] drm/amd/display: Allow inverted gamma + +[why] +There's a use case for inverted gamma +and it's been confirmed that negative slopes are ok. + +[how] +Remove code for blocking non-monotonically increasing gamma + +Signed-off-by: Aidan Yang <Aidan.Yang@amd.com> +Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +Acked-by: Reza Amini <Reza.Amini@amd.com> +--- + .../amd/display/dc/dcn10/dcn10_cm_common.c | 22 +++++++------------ + 1 file changed, 8 insertions(+), 14 deletions(-) + +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 01c7e30b9ce1..bbd6e01b3eca 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 +@@ -393,6 +393,10 @@ bool cm_helper_translate_curve_to_hw_format( + rgb_resulted[hw_points - 1].green = output_tf->tf_pts.green[start_index]; + rgb_resulted[hw_points - 1].blue = output_tf->tf_pts.blue[start_index]; + ++ rgb_resulted[hw_points].red = rgb_resulted[hw_points - 1].red; ++ rgb_resulted[hw_points].green = rgb_resulted[hw_points - 1].green; ++ rgb_resulted[hw_points].blue = rgb_resulted[hw_points - 1].blue; ++ + // All 3 color channels have same x + corner_points[0].red.x = dc_fixpt_pow(dc_fixpt_from_int(2), + dc_fixpt_from_int(region_start)); +@@ -464,13 +468,6 @@ bool cm_helper_translate_curve_to_hw_format( + + i = 1; + while (i != hw_points + 1) { +- if (dc_fixpt_lt(rgb_plus_1->red, rgb->red)) +- rgb_plus_1->red = rgb->red; +- if (dc_fixpt_lt(rgb_plus_1->green, rgb->green)) +- rgb_plus_1->green = rgb->green; +- if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue)) +- rgb_plus_1->blue = rgb->blue; +- + rgb->delta_red = dc_fixpt_sub(rgb_plus_1->red, rgb->red); + rgb->delta_green = dc_fixpt_sub(rgb_plus_1->green, rgb->green); + rgb->delta_blue = dc_fixpt_sub(rgb_plus_1->blue, rgb->blue); +@@ -562,6 +559,10 @@ bool cm_helper_translate_curve_to_degamma_hw_format( + rgb_resulted[hw_points - 1].green = output_tf->tf_pts.green[start_index]; + rgb_resulted[hw_points - 1].blue = output_tf->tf_pts.blue[start_index]; + ++ rgb_resulted[hw_points].red = rgb_resulted[hw_points - 1].red; ++ rgb_resulted[hw_points].green = rgb_resulted[hw_points - 1].green; ++ rgb_resulted[hw_points].blue = rgb_resulted[hw_points - 1].blue; ++ + corner_points[0].red.x = dc_fixpt_pow(dc_fixpt_from_int(2), + dc_fixpt_from_int(region_start)); + corner_points[0].green.x = corner_points[0].red.x; +@@ -624,13 +625,6 @@ bool cm_helper_translate_curve_to_degamma_hw_format( + + i = 1; + while (i != hw_points + 1) { +- if (dc_fixpt_lt(rgb_plus_1->red, rgb->red)) +- rgb_plus_1->red = rgb->red; +- if (dc_fixpt_lt(rgb_plus_1->green, rgb->green)) +- rgb_plus_1->green = rgb->green; +- if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue)) +- rgb_plus_1->blue = rgb->blue; +- + rgb->delta_red = dc_fixpt_sub(rgb_plus_1->red, rgb->red); + rgb->delta_green = dc_fixpt_sub(rgb_plus_1->green, rgb->green); + rgb->delta_blue = dc_fixpt_sub(rgb_plus_1->blue, rgb->blue); +-- +2.17.1 + |