media: imx: add 8-bit grayscale support

The IPUv3 code has 8-bit grayscale capture support.
Enable imx-media to use it.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index 5a195f8..1aa2be8 100644 (file)
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -400,6 +400,7 @@ static int csi_idmac_setup_channel(struct csi_priv *priv)
        case V4L2_PIX_FMT_SGBRG8:
        case V4L2_PIX_FMT_SGRBG8:
        case V4L2_PIX_FMT_SRGGB8:
+       case V4L2_PIX_FMT_GREY:
                burst_size = 16;
                passthrough = true;
                passthrough_bits = 8;

diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c
index 8920f9b..40bcb8f 100644 (file)
--- a/drivers/staging/media/imx/imx-media-utils.c
+++ b/drivers/staging/media/imx/imx-media-utils.c
@@ -93,7 +93,7 @@ static const struct imx_media_pixfmt rgb_formats[] = {
                .bpp    = 32,
                .ipufmt = true,
        },
-       /*** raw bayer formats start here ***/
+       /*** raw bayer and grayscale formats start here ***/
        {
                .fourcc = V4L2_PIX_FMT_SBGGR8,
                .codes  = {MEDIA_BUS_FMT_SBGGR8_1X8},
@@ -162,6 +162,12 @@ static const struct imx_media_pixfmt rgb_formats[] = {
                .cs     = IPUV3_COLORSPACE_RGB,
                .bpp    = 16,
                .bayer  = true,
+       }, {
+               .fourcc = V4L2_PIX_FMT_GREY,
+               .codes = {MEDIA_BUS_FMT_Y8_1X8},
+               .cs     = IPUV3_COLORSPACE_RGB,
+               .bpp    = 8,
+               .bayer  = true,
        },
        /***
         * non-mbus RGB formats start here. NOTE! when adding non-mbus