From: Jonah Walker <jonahw@nvidia.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linux-api@vger.kernel.org, Jonah Walker <jonahw@nvidia.com>
Subject: [PATCH] drm/fourcc: Add P212, P410 and P412 formats
Date: Thu, 2 Jul 2026 21:23:55 +0000 [thread overview]
Message-ID: <20260702212355.1072804-1-jonahw@nvidia.com> (raw)
Add P212, P410 and P412 formats, including their FourCC codes and
drm_format_info entries.
- P212 is a two-plane, 12-bit, 4:2:2 YCbCr format
- P410 is a two-plane, 10-bit, 4:4:4 YCbCr format
- P412 is a two-plane, 12-bit, 4:4:4 YCbCr format
Assisted-by: Cursor:GPT-5.5
Signed-off-by: Jonah Walker <jonahw@nvidia.com>
---
drivers/gpu/drm/drm_fourcc.c | 12 ++++++++++++
include/uapi/drm/drm_fourcc.h | 21 +++++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index 60cd02b7e..31558a212 100644
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -324,6 +324,18 @@ const struct drm_format_info *__drm_format_info(u32 format)
.num_planes = 2, .char_per_block = { 2, 4, 0 },
.block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
.vsub = 1, .is_yuv = true },
+ { .format = DRM_FORMAT_P212, .depth = 0,
+ .num_planes = 2, .char_per_block = { 2, 4, 0 },
+ .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
+ .vsub = 1, .is_yuv = true },
+ { .format = DRM_FORMAT_P410, .depth = 0,
+ .num_planes = 2, .char_per_block = { 2, 4, 0 },
+ .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 }, .hsub = 1,
+ .vsub = 1, .is_yuv = true },
+ { .format = DRM_FORMAT_P412, .depth = 0,
+ .num_planes = 2, .char_per_block = { 2, 4, 0 },
+ .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 }, .hsub = 1,
+ .vsub = 1, .is_yuv = true },
{ .format = DRM_FORMAT_VUY101010, .depth = 0,
.num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 1, .vsub = 1,
.is_yuv = true },
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 3a4d4dc63..d4a6463d2 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -334,6 +334,27 @@ extern "C" {
*/
#define DRM_FORMAT_P210 fourcc_code('P', '2', '1', '0') /* 2x1 subsampled Cr:Cb plane, 10 bit per channel */
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y:x [12:4] little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [12:4:12:4] little endian
+ */
+#define DRM_FORMAT_P212 fourcc_code('P', '2', '1', '2') /* 2x1 subsampled Cr:Cb plane 12 bits per channel */
+
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y:x [10:6] little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [10:6:10:6] little endian
+ */
+#define DRM_FORMAT_P410 fourcc_code('P', '4', '1', '0') /* non-subsampled Cr:Cb plane 10 bits per channel */
+
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y:x [12:4] little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [12:4:12:4] little endian
+ */
+#define DRM_FORMAT_P412 fourcc_code('P', '4', '1', '2') /* non-subsampled Cr:Cb plane 12 bits per channel */
+
/*
* 2 plane YCbCr MSB aligned
* index 0 = Y plane, [15:0] Y:x [10:6] little endian
base-commit: cff96362794a5c1f3adb013b4a46c7233149a629
--
2.43.0
reply other threads:[~2026-07-02 21:25 UTC|newest]
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