[PATCH v2 02/17] media: v4l2: Add P210 pixel format

From: Sofus Forstreuter <sofus.c@icloud.com>
To: Sven Peter <sven@kernel.org>, Janne Grunau <j@jannau.net>,
	 Neal Gompa <neal@gompa.dev>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	 Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Sofus Forstreuter <sofus.c@icloud.com>,
	 Philipp Zabel <p.zabel@pengutronix.de>,
	Heiko Stuebner <heiko@sntech.de>
Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	 linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	 linux-kernel@vger.kernel.org,
	linux-rockchip@lists.infradead.org
Subject: [PATCH v2 02/17] media: v4l2: Add P210 pixel format
Date: Sat, 26 Sep 2026 15:14:41 +0200	[thread overview]
Message-ID: <20260926-avd-v2-2-ecebe6a3648e@icloud.com> (raw)
In-Reply-To: <20260926-avd-v2-0-ecebe6a3648e@icloud.com>

P210 is a YUV format with 10-bits per component with interleaved UV.

Signed-off-by: Sofus Forstreuter <sofus.c@icloud.com>
---
 .../userspace-api/media/v4l/pixfmt-yuv-planar.rst          | 14 ++++++++++++--
 drivers/media/v4l2-core/v4l2-common.c                      |  1 +
 drivers/media/v4l2-core/v4l2-ioctl.c                       |  1 +
 include/uapi/linux/videodev2.h                             |  1 +
 4 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
index 0631919bd667..f2d2e79698fa 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
@@ -138,6 +138,13 @@ All components are stored with the same number of bits per component.
       - Cb, Cr
       - No
       - Linear
+    * - V4L2_PIX_FMT_P210
+      - 'P210'
+      - 10
+      - 4:2:2
+      - Cb, Cr
+      - Yes
+      - Linear
     * - V4L2_PIX_FMT_NV15
       - 'NV15'
       - 10
@@ -834,12 +841,15 @@ number of lines as the luma plane.
 
 .. _V4L2_PIX_FMT_P010:
 .. _V4L2-PIX-FMT-P010-4L4:
+.. _V4L2-PIX-FMT-P210:
 
-P010 and tiled P010
--------------------
+P010, tiled P010 and P210
+-------------------------
 
 P010 is like NV12 with 10 bits per component, expanded to 16 bits.
 Data in the 10 high bits, zeros in the 6 low bits, arranged in little endian order.
+P210 is the same as P010 but the chroma plane is only subsampled by 2 in the
+horizontal direction.
 
 .. flat-table:: Sample 4x4 P010 Image
     :header-rows:  0
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index c825820fd481..b78fc0845a16 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -325,6 +325,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
 		{ .format = V4L2_PIX_FMT_NV42,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 1, .vdiv = 1 },
 		{ .format = V4L2_PIX_FMT_P010,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 2, 2, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 2, .vdiv = 1 },
 		{ .format = V4L2_PIX_FMT_P012,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 2, 4, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 2, .vdiv = 2 },
+		{ .format = V4L2_PIX_FMT_P210,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 2, 4, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 2, .vdiv = 1 },
 
 		{ .format = V4L2_PIX_FMT_YUV410,  .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 4, .vdiv = 4 },
 		{ .format = V4L2_PIX_FMT_YVU410,  .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 4, .vdiv = 4 },
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 17ba1ae70735..1f2519ffeb2b 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1369,6 +1369,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
 	case V4L2_PIX_FMT_NV42:		descr = "Y/VU 4:4:4"; break;
 	case V4L2_PIX_FMT_P010:		descr = "10-bit Y/UV 4:2:0"; break;
 	case V4L2_PIX_FMT_P012:		descr = "12-bit Y/UV 4:2:0"; break;
+	case V4L2_PIX_FMT_P210:		descr = "10-bit Y/UV 4:2:2"; break;
 	case V4L2_PIX_FMT_NV12_4L4:	descr = "Y/UV 4:2:0 (4x4 Linear)"; break;
 	case V4L2_PIX_FMT_NV12_16L16:	descr = "Y/UV 4:2:0 (16x16 Linear)"; break;
 	case V4L2_PIX_FMT_NV12_32L32:   descr = "Y/UV 4:2:0 (32x32 Linear)"; break;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 5373dba640fa..5472e433ed06 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -659,6 +659,7 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_NV42    v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */
 #define V4L2_PIX_FMT_P010    v4l2_fourcc('P', '0', '1', '0') /* 24  Y/CbCr 4:2:0 10-bit per component */
 #define V4L2_PIX_FMT_P012    v4l2_fourcc('P', '0', '1', '2') /* 24  Y/CbCr 4:2:0 12-bit per component */
+#define V4L2_PIX_FMT_P210    v4l2_fourcc('P', '2', '1', '0') /* 32  Y/CbCr 4:2:2 10-bit per component */
 
 /* two non contiguous planes - one Y, one Cr + Cb interleaved  */
 #define V4L2_PIX_FMT_NV12M   v4l2_fourcc('N', 'M', '1', '2') /* 12  Y/CbCr 4:2:0  */

-- 
2.55.0

