[PATCH v10 1/2] drm: Introduce new DRM_FORMAT_XYUV

Stanislav Lisovskiy
2018-09-07T08:45:19Z

v5: This is YUV444 packed format same as AYUV, but without alpha,
as supported by i915.

v6: Removed unneeded initializer for new XYUV format.

v7: Added is_yuv field initialization according to latest
drm_fourcc format structure initialization changes.

v8: Edited commit message to be more clear about skl+, renamed
PLANE_CTL_FORMAT_AYUV to PLANE_CTL_FORMAT_XYUV as this format
doesn't support per-pixel alpha. Fixed minor code issues.

v9: Moved DRM format check to proper place in intel_framebuffer_init.

Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
---
drivers/gpu/drm/drm_fourcc.c | 1 +
include/uapi/drm/drm_fourcc.h | 1 +
2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index 35c1e2742c27..2ad09c7ecebc 100644
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -173,6 +173,7 @@ const struct drm_format_info *__drm_format_info(u32 format)
{ .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
{ .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
{ .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
+ { .format = DRM_FORMAT_XYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
};

unsigned int i;
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 2ed46e9ae16a..5ba5b1473342 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -148,6 +148,7 @@ extern "C" {
#define DRM_FORMAT_VYUY fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */

#define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
+#define DRM_FORMAT_XYUV fourcc_code('X', 'Y', 'U', 'V') /* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian */

/*
* 2 plane RGB + A
--
2.17.0