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    Subject[PATCH 2/2] media: v4l: Add new 10-bit packed grayscale format
    Date
    The new format will be called V4L2_PIX_FMT_Y10P.
    It is similar to the V4L2_PIX_FMT_SBGGR10P family formats
    but V4L2_PIX_FMT_Y10P is a grayscale format.

    Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
    ---
    Documentation/media/uapi/v4l/pixfmt-y10p.rst | 31 ++++++++++++++++++++++++++++
    Documentation/media/uapi/v4l/yuv-formats.rst | 1 +
    drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
    include/uapi/linux/videodev2.h | 1 +
    4 files changed, 34 insertions(+)
    create mode 100644 Documentation/media/uapi/v4l/pixfmt-y10p.rst

    diff --git a/Documentation/media/uapi/v4l/pixfmt-y10p.rst b/Documentation/media/uapi/v4l/pixfmt-y10p.rst
    new file mode 100644
    index 0000000..0018fe7
    --- /dev/null
    +++ b/Documentation/media/uapi/v4l/pixfmt-y10p.rst
    @@ -0,0 +1,31 @@
    +.. -*- coding: utf-8; mode: rst -*-
    +
    +.. _V4L2-PIX-FMT-Y10P:
    +
    +******************************
    +V4L2_PIX_FMT_Y10P ('Y10P')
    +******************************
    +
    +Grey-scale image as a MIPI RAW10 packed array
    +
    +
    +Description
    +===========
    +
    +This is a packed grey-scale image format with a depth of 10 bits per
    +pixel. Every four consecutive pixels are packed into 5 bytes. Each of
    +the first 4 bytes contain the 8 high order bits of the pixels, and
    +the 5th byte contains the 2 least significants bits of each pixel,
    +in the same order.
    +
    +**Bit-packed representation.**
    +
    +.. flat-table::
    + :header-rows: 0
    + :stub-columns: 0
    +
    + * - Y'\ :sub:`00[9:2]`
    + - Y'\ :sub:`01[9:2]`
    + - Y'\ :sub:`02[9:2]`
    + - Y'\ :sub:`03[9:2]`
    + - Y'\ :sub:`03[1:0]`\ Y'\ :sub:`02[1:0]`\ Y'\ :sub:`01[1:0]`\ Y'\ :sub:`00[1:0]`
    diff --git a/Documentation/media/uapi/v4l/yuv-formats.rst b/Documentation/media/uapi/v4l/yuv-formats.rst
    index 3334ea4..9ab0592 100644
    --- a/Documentation/media/uapi/v4l/yuv-formats.rst
    +++ b/Documentation/media/uapi/v4l/yuv-formats.rst
    @@ -29,6 +29,7 @@ to brightness information.
    pixfmt-y10
    pixfmt-y12
    pixfmt-y10b
    + pixfmt-y10p
    pixfmt-y16
    pixfmt-y16-be
    pixfmt-y8i
    diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
    index f48c505..bdf2399 100644
    --- a/drivers/media/v4l2-core/v4l2-ioctl.c
    +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
    @@ -1147,6 +1147,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
    case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
    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_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 600877b..b24ab720 100644
    --- a/include/uapi/linux/videodev2.h
    +++ b/include/uapi/linux/videodev2.h
    @@ -522,6 +522,7 @@ 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 */

    /* Palette formats */
    #define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */
    --
    2.7.4
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