Hi Jean-Michel,
Thank you for the patch.
On Wed, Jan 12, 2022 at 05:10:13PM +0100, Jean-Michel Hautbois wrote:
> This is a packed grey-scale image format with a depth of 12 bits per
> pixel. Two consecutive pixels are packed into 3 bytes. The first 2 bytes
> contain the 8 high order bits of the pixels, and the 3rd byte contains
> the 4 least significants bits of each pixel, in the same order.
>
> Add the entry in userspace API, and document it.
>
> Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@xxxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
> .../userspace-api/media/v4l/pixfmt-yuv-luma.rst | 11 +++++++++++
> drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
> include/uapi/linux/videodev2.h | 1 +
> 3 files changed, 13 insertions(+)
>
> diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> index 8ebd58c3588f..d37ce6027095 100644
> --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> @@ -92,6 +92,17 @@ are often referred to as greyscale formats.
> - ...
> - ...
>
> + * .. _V4L2-PIX-FMT-Y12P:
> +
> + - ``V4L2_PIX_FMT_Y12P``
> + - 'Y12P'
> +
> + - Y'\ :sub:`0`\ [11:4]
> + - Y'\ :sub:`1`\ [11:4]
> + - Y'\ :sub:`1`\ [3:0] Y'\ :sub:`0`\ [3:0]
> + - ...
> + - ...
> +
> * .. _V4L2-PIX-FMT-Y14:
>
> - ``V4L2_PIX_FMT_Y14``
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index 9ac557b8e146..e90979af8efb 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1263,6 +1263,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
> case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
> case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
> case V4L2_PIX_FMT_Y10P: descr = "10-bit Greyscale (MIPI Packed)"; break;
> + case V4L2_PIX_FMT_Y12P: descr = "12-bit Greyscale (MIPI Packed)"; break;
> case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
> case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index df8b9c486ba1..39ab8c216fe8 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -569,6 +569,7 @@ struct v4l2_pix_format {
> /* Grey bit-packed formats */
> #define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */
> #define V4L2_PIX_FMT_Y10P v4l2_fourcc('Y', '1', '0', 'P') /* 10 Greyscale, MIPI RAW10 packed */
> +#define V4L2_PIX_FMT_Y12P v4l2_fourcc('Y', '1', '2', 'P') /* 12 Greyscale, MIPI RAW12 packed */
>
> /* Palette formats */
> #define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */
--
Regards,
Laurent Pinchart
