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Wed, 04 Mar 2026 06:05:21 -0800 (PST) From: Dave Stevenson Date: Wed, 04 Mar 2026 14:05:16 +0000 Subject: [PATCH v6 3/6] media: ioctl: Add pixel formats NV12MT_COL128 and NV12MT_10_COL128 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260304-media-rpi-hevc-dec-v6-3-93868ae6dff8@raspberrypi.com> References: <20260304-media-rpi-hevc-dec-v6-0-93868ae6dff8@raspberrypi.com> In-Reply-To: <20260304-media-rpi-hevc-dec-v6-0-93868ae6dff8@raspberrypi.com> To: Sakari Ailus , Laurent Pinchart , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Broadcom internal kernel review list , John Cox , Dom Cobley , review list , Ezequiel Garcia Cc: Nicolas Dufresne , John Cox , Stefan Wahren , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Dave Stevenson X-Mailer: b4 0.14.1 Add V4L2_PIXFMT_NV12MT_COL128 and V4L2_PIXFMT_NV12MT_10_COL128 to describe the Raspberry Pi HEVC decoder NV12 multiplanar formats. NV12MT_COL128 has been added to v4l2_format_info. NV12MT_10_COL128 has not as the block width is not a power of 2, but the framework uses ALIGN with the value. Signed-off-by: Dave Stevenson --- drivers/media/v4l2-core/v4l2-common.c | 2 ++ drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++ include/uapi/linux/videodev2.h | 4 ++++ 3 files changed, 8 insertions(+) diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-cor= e/v4l2-common.c index 554c591e1113..20a7066df570 100644 --- a/drivers/media/v4l2-core/v4l2-common.c +++ b/drivers/media/v4l2-core/v4l2-common.c @@ -311,6 +311,8 @@ const struct v4l2_format_info *v4l2_format_info(u32 for= mat) { .format =3D V4L2_PIX_FMT_NV15_4L4, .pixel_enc =3D V4L2_PIXEL_ENC_YUV, = .mem_planes =3D 1, .comp_planes =3D 2, .bpp =3D { 5, 10, 0, 0 }, .bpp_div = =3D { 4, 4, 1, 1 }, .hdiv =3D 2, .vdiv =3D 2, .block_w =3D { 4, 2, 0, 0 }, .block_h =3D { 1, 1, 0, 0 }}, { .format =3D V4L2_PIX_FMT_P010_4L4, .pixel_enc =3D V4L2_PIXEL_ENC_YUV, = .mem_planes =3D 1, .comp_planes =3D 2, .bpp =3D { 2, 4, 0, 0 }, .bpp_div = =3D { 1, 1, 1, 1 }, .hdiv =3D 2, .vdiv =3D 2 }, + { .format =3D V4L2_PIX_FMT_NV12MT_COL128, .pixel_enc =3D V4L2_PIXEL_ENC_= YUV, .mem_planes =3D 2, .comp_planes =3D 2, .bpp =3D { 1, 2, 0, 0 }, .bpp_d= iv =3D { 1, 1, 1, 1 }, .hdiv =3D 2, .vdiv =3D 2 }, + /* V4L2_PIX_FMT_NV12MT_10_COL128 can not be described within the current= constraints of v4l2_format_info as 96 pixels is not a power of 2 */ =20 /* YUV planar formats, non contiguous variant */ { .format =3D V4L2_PIX_FMT_YUV420M, .pixel_enc =3D V4L2_PIXEL_ENC_YUV, .= mem_planes =3D 3, .comp_planes =3D 3, .bpp =3D { 1, 1, 1, 0 }, .bpp_div =3D= { 1, 1, 1, 1 }, .hdiv =3D 2, .vdiv =3D 2 }, diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core= /v4l2-ioctl.c index 37d33d4a363d..2fe8f591cdb3 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1379,7 +1379,9 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_NV16M: descr =3D "Y/UV 4:2:2 (N-C)"; break; case V4L2_PIX_FMT_NV61M: descr =3D "Y/VU 4:2:2 (N-C)"; break; case V4L2_PIX_FMT_NV12MT: descr =3D "Y/UV 4:2:0 (64x32 MB, N-C)"; break; + case V4L2_PIX_FMT_NV12MT_COL128: descr =3D "Y/CbCr 4:2:0 (128b cols)"; br= eak; case V4L2_PIX_FMT_NV12MT_16X16: descr =3D "Y/UV 4:2:0 (16x16 MB, N-C)"; b= reak; + case V4L2_PIX_FMT_NV12MT_10_COL128: descr =3D "10-bit Y/CbCr 4:2:0 (128b = cols)"; break; case V4L2_PIX_FMT_P012M: descr =3D "12-bit Y/UV 4:2:0 (N-C)"; break; case V4L2_PIX_FMT_YUV420M: descr =3D "Planar YUV 4:2:0 (N-C)"; break; case V4L2_PIX_FMT_YVU420M: descr =3D "Planar YVU 4:2:0 (N-C)"; break; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index eda4492e40dc..e466c816ff2f 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -697,6 +697,10 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12 Y= /CbCr 4:2:0 16x16 tiles */ #define V4L2_PIX_FMT_NV12M_8L128 v4l2_fourcc('N', 'A', '1', '2') /* Y= /CbCr 4:2:0 8x128 tiles */ #define V4L2_PIX_FMT_NV12M_10BE_8L128 v4l2_fourcc_be('N', 'T', '1', '2') /= * Y/CbCr 4:2:0 10-bit 8x128 tiles */ +#define V4L2_PIX_FMT_NV12MT_COL128 v4l2_fourcc('N', 'c', '1', '2') /* 12 = Y/CbCr 4:2:0 128 pixel wide column */ +#define V4L2_PIX_FMT_NV12MT_10_COL128 v4l2_fourcc('N', 'c', '3', '0') + /* Y/CbCr 4:2:0 10bpc, 3x10 packed as 4 bytes in a 128 bytes / 96 pixel= wide column */ + =20 /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */ #define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG..= GRGR.. */ --=20 2.34.1