diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0469-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0469-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0469-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch b/target/linux/bcm27xx/patches-5.4/950-0469-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch new file mode 100644 index 0000000000..ac4fe1698b --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0469-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch @@ -0,0 +1,55 @@ +From 0d392a430d7dc84d8654972e9dbfa4d13009d3e8 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Fri, 24 Jan 2020 14:22:06 +0000 +Subject: [PATCH] drm/fourcc: Add packed 10bit YUV 4:2:0 format + +Adds a format that is 3 10bit YUV 4:2:0 samples packed into +a 32bit work (with 2 spare bits). + +Supported on Broadcom BCM2711 chips. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + drivers/gpu/drm/drm_fourcc.c | 3 +++ + include/uapi/drm/drm_fourcc.h | 11 +++++++++++ + 2 files changed, 14 insertions(+) + +--- a/drivers/gpu/drm/drm_fourcc.c ++++ b/drivers/gpu/drm/drm_fourcc.c +@@ -274,6 +274,9 @@ const struct drm_format_info *__drm_form + { .format = DRM_FORMAT_YUV420_10BIT, .depth = 0, + .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2, + .is_yuv = true }, ++ { .format = DRM_FORMAT_P030, .depth = 0, .num_planes = 2, ++ .char_per_block = { 4, 4, 0 }, .block_w = { 3, 0, 0 }, .block_h = { 1, 0, 0 }, ++ .hsub = 2, .vsub = 2, .is_yuv = true}, + }; + + unsigned int i; +--- a/include/uapi/drm/drm_fourcc.h ++++ b/include/uapi/drm/drm_fourcc.h +@@ -266,6 +266,13 @@ extern "C" { + #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */ + + /* ++ * 2 plane YCbCr MSB aligned, 3 pixels packed into 4 bytes. ++ * index 0 = Y plane, [31:0] x:Y2:Y1:Y0 2:10:10:10 little endian ++ * index 1 = Cr:Cb plane, [63:0] x:Cr2:Cb2:Cr1:x:Cb1:Cr0:Cb0 [2:10:10:10:2:10:10:10] little endian ++ */ ++#define DRM_FORMAT_P030 fourcc_code('P', '0', '3', '0') /* 2x2 subsampled Cr:Cb plane 10 bits per channel packed */ ++ ++/* + * 3 plane YCbCr + * index 0: Y plane, [7:0] Y + * index 1: Cb plane, [7:0] Cb +@@ -593,6 +600,10 @@ extern "C" { + * and UV. Some SAND-using hardware stores UV in a separate tiled + * image from Y to reduce the column height, which is not supported + * with these modifiers. ++ * ++ * The DRM_FORMAT_MOD_BROADCOM_SAND128_COL_HEIGHT modifier is also ++ * supported for DRM_FORMAT_P030 where the columns remain as 128 bytes ++ * wide, but as this is a 10 bpp format that translates to 96 pixels. + */ + + #define DRM_FORMAT_MOD_BROADCOM_SAND32_COL_HEIGHT(v) \ |