drm/fourcc: Add DRM_FORMAT_T430

Add T430, a 3 plane 10 bits per component non-subsampled YCbCr format.

A new initial letter was chosen for this one, as the format doesn't
match the existing P, Q or S formats. T is the next one in the alphabet.
It was definitely not chosen because of the initial letter in the
author's name.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Vishal Sagar <vishal.sagar@amd.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20260423-xilinx-formats-v10-5-c690c2b8ea89@ideasonboard.com
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index 01761c553e7e04b2fd346b0539dd84a89c681129..20b84efc135ef75ca81e2d921919c37994fc3c26 100644 (file)
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -388,6 +388,9 @@ const struct drm_format_info *__drm_format_info(u32 format)
                { .format = DRM_FORMAT_XYYY2101010,     .depth = 0,  .num_planes = 1,
                  .char_per_block = { 4, 0, 0 }, .block_w = { 3, 0, 0 }, .block_h = { 1, 0, 0 },
                  .hsub = 1, .vsub = 1, .is_yuv = true },
+               { .format = DRM_FORMAT_T430,            .depth = 0,  .num_planes = 3,
+                 .char_per_block = { 4, 4, 4 }, .block_w = { 3, 3, 3 }, .block_h = { 1, 1, 1 },
+                 .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 480c67296d6ab3140e60ced47fe71a7f6b8de575..250b0b00ed8834826f38738bcdbd139b32314fd9 100644 (file)
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -385,6 +385,15 @@ extern "C" {
  */
 #define DRM_FORMAT_Q401                fourcc_code('Q', '4', '0', '1')
 
+/*
+ * 3 plane non-subsampled (444) YCbCr LSB aligned
+ * 10 bpc, 30 bits per sample image data in a single contiguous buffer.
+ * index 0: Y plane,  [31:0] x:Y2:Y1:Y0    [2:10:10:10] little endian
+ * index 1: Cb plane, [31:0] x:Cb2:Cb1:Cb0 [2:10:10:10] little endian
+ * index 2: Cr plane, [31:0] x:Cr2:Cr1:Cr0 [2:10:10:10] little endian
+ */
+#define DRM_FORMAT_T430                fourcc_code('T', '4', '3', '0')
+
 /*
  * 3 plane YCbCr LSB aligned
  * In order to use these formats in a similar fashion to MSB aligned ones