Hi Hans,
Thank you for the patch.
On Wed, Jun 26, 2019 at 01:27:47PM +0200, Hans Verkuil wrote:
> The V4L2 core sets the format description and flags for the driver in order
> to ensure consistent naming.
>
> So drop the strscpy of the description in drivers. Also remove any
> description strings in driver-internal structures since those are
> no longer needed.
>
> Note that bcm2835-camera.c: the formats array still stores the flags
> field for compressed formats since that information is used elsewhere
> in the driver. But enum_fmt doesn't use it anymore, since the core
> will set the COMPRESSED flag correctly.
>
> Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
> Cc: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
> Cc: Dave Stevenson <dave.steven...@raspberrypi.org>
> Cc: Eric Anholt <e...@anholt.net>
Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
> ---
> drivers/staging/media/omap4iss/iss_video.c | 40 +++++++++----------
> drivers/staging/media/omap4iss/iss_video.h | 2 -
> drivers/staging/media/soc_camera/soc_camera.c | 2 -
> .../bcm2835-camera/bcm2835-camera.c | 29 --------------
> .../bcm2835-camera/mmal-common.h | 1 -
> include/media/drv-intf/soc_mediabus.h | 2 -
> 6 files changed, 19 insertions(+), 57 deletions(-)
>
> diff --git a/drivers/staging/media/omap4iss/iss_video.c
> b/drivers/staging/media/omap4iss/iss_video.c
> index c307707480f7..54144dc9f509 100644
> --- a/drivers/staging/media/omap4iss/iss_video.c
> +++ b/drivers/staging/media/omap4iss/iss_video.c
> @@ -31,61 +31,61 @@
> static struct iss_format_info formats[] = {
> { MEDIA_BUS_FMT_Y8_1X8, MEDIA_BUS_FMT_Y8_1X8,
> MEDIA_BUS_FMT_Y8_1X8, MEDIA_BUS_FMT_Y8_1X8,
> - V4L2_PIX_FMT_GREY, 8, "Greyscale 8 bpp", },
> + V4L2_PIX_FMT_GREY, 8, },
> { MEDIA_BUS_FMT_Y10_1X10, MEDIA_BUS_FMT_Y10_1X10,
> MEDIA_BUS_FMT_Y10_1X10, MEDIA_BUS_FMT_Y8_1X8,
> - V4L2_PIX_FMT_Y10, 10, "Greyscale 10 bpp", },
> + V4L2_PIX_FMT_Y10, 10, },
> { MEDIA_BUS_FMT_Y12_1X12, MEDIA_BUS_FMT_Y10_1X10,
> MEDIA_BUS_FMT_Y12_1X12, MEDIA_BUS_FMT_Y8_1X8,
> - V4L2_PIX_FMT_Y12, 12, "Greyscale 12 bpp", },
> + V4L2_PIX_FMT_Y12, 12, },
> { MEDIA_BUS_FMT_SBGGR8_1X8, MEDIA_BUS_FMT_SBGGR8_1X8,
> MEDIA_BUS_FMT_SBGGR8_1X8, MEDIA_BUS_FMT_SBGGR8_1X8,
> - V4L2_PIX_FMT_SBGGR8, 8, "BGGR Bayer 8 bpp", },
> + V4L2_PIX_FMT_SBGGR8, 8, },
> { MEDIA_BUS_FMT_SGBRG8_1X8, MEDIA_BUS_FMT_SGBRG8_1X8,
> MEDIA_BUS_FMT_SGBRG8_1X8, MEDIA_BUS_FMT_SGBRG8_1X8,
> - V4L2_PIX_FMT_SGBRG8, 8, "GBRG Bayer 8 bpp", },
> + V4L2_PIX_FMT_SGBRG8, 8, },
> { MEDIA_BUS_FMT_SGRBG8_1X8, MEDIA_BUS_FMT_SGRBG8_1X8,
> MEDIA_BUS_FMT_SGRBG8_1X8, MEDIA_BUS_FMT_SGRBG8_1X8,
> - V4L2_PIX_FMT_SGRBG8, 8, "GRBG Bayer 8 bpp", },
> + V4L2_PIX_FMT_SGRBG8, 8, },
> { MEDIA_BUS_FMT_SRGGB8_1X8, MEDIA_BUS_FMT_SRGGB8_1X8,
> MEDIA_BUS_FMT_SRGGB8_1X8, MEDIA_BUS_FMT_SRGGB8_1X8,
> - V4L2_PIX_FMT_SRGGB8, 8, "RGGB Bayer 8 bpp", },
> + V4L2_PIX_FMT_SRGGB8, 8, },
> { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8,
> MEDIA_BUS_FMT_SGRBG10_1X10, 0,
> - V4L2_PIX_FMT_SGRBG10DPCM8, 8, "GRBG Bayer 10 bpp DPCM8", },
> + V4L2_PIX_FMT_SGRBG10DPCM8, 8, },
> { MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SBGGR10_1X10,
> MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SBGGR8_1X8,
> - V4L2_PIX_FMT_SBGGR10, 10, "BGGR Bayer 10 bpp", },
> + V4L2_PIX_FMT_SBGGR10, 10, },
> { MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SGBRG10_1X10,
> MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SGBRG8_1X8,
> - V4L2_PIX_FMT_SGBRG10, 10, "GBRG Bayer 10 bpp", },
> + V4L2_PIX_FMT_SGBRG10, 10, },
> { MEDIA_BUS_FMT_SGRBG10_1X10, MEDIA_BUS_FMT_SGRBG10_1X10,
> MEDIA_BUS_FMT_SGRBG10_1X10, MEDIA_BUS_FMT_SGRBG8_1X8,
> - V4L2_PIX_FMT_SGRBG10, 10, "GRBG Bayer 10 bpp", },
> + V4L2_PIX_FMT_SGRBG10, 10, },
> { MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SRGGB10_1X10,
> MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SRGGB8_1X8,
> - V4L2_PIX_FMT_SRGGB10, 10, "RGGB Bayer 10 bpp", },
> + V4L2_PIX_FMT_SRGGB10, 10, },
> { MEDIA_BUS_FMT_SBGGR12_1X12, MEDIA_BUS_FMT_SBGGR10_1X10,
> MEDIA_BUS_FMT_SBGGR12_1X12, MEDIA_BUS_FMT_SBGGR8_1X8,
> - V4L2_PIX_FMT_SBGGR12, 12, "BGGR Bayer 12 bpp", },
> + V4L2_PIX_FMT_SBGGR12, 12, },
> { MEDIA_BUS_FMT_SGBRG12_1X12, MEDIA_BUS_FMT_SGBRG10_1X10,
> MEDIA_BUS_FMT_SGBRG12_1X12, MEDIA_BUS_FMT_SGBRG8_1X8,
> - V4L2_PIX_FMT_SGBRG12, 12, "GBRG Bayer 12 bpp", },
> + V4L2_PIX_FMT_SGBRG12, 12, },
> { MEDIA_BUS_FMT_SGRBG12_1X12, MEDIA_BUS_FMT_SGRBG10_1X10,
> MEDIA_BUS_FMT_SGRBG12_1X12, MEDIA_BUS_FMT_SGRBG8_1X8,
> - V4L2_PIX_FMT_SGRBG12, 12, "GRBG Bayer 12 bpp", },
> + V4L2_PIX_FMT_SGRBG12, 12, },
> { MEDIA_BUS_FMT_SRGGB12_1X12, MEDIA_BUS_FMT_SRGGB10_1X10,
> MEDIA_BUS_FMT_SRGGB12_1X12, MEDIA_BUS_FMT_SRGGB8_1X8,
> - V4L2_PIX_FMT_SRGGB12, 12, "RGGB Bayer 12 bpp", },
> + V4L2_PIX_FMT_SRGGB12, 12, },
> { MEDIA_BUS_FMT_UYVY8_1X16, MEDIA_BUS_FMT_UYVY8_1X16,
> MEDIA_BUS_FMT_UYVY8_1X16, 0,
> - V4L2_PIX_FMT_UYVY, 16, "YUV 4:2:2 (UYVY)", },
> + V4L2_PIX_FMT_UYVY, 16, },
> { MEDIA_BUS_FMT_YUYV8_1X16, MEDIA_BUS_FMT_YUYV8_1X16,
> MEDIA_BUS_FMT_YUYV8_1X16, 0,
> - V4L2_PIX_FMT_YUYV, 16, "YUV 4:2:2 (YUYV)", },
> + V4L2_PIX_FMT_YUYV, 16, },
> { MEDIA_BUS_FMT_YUYV8_1_5X8, MEDIA_BUS_FMT_YUYV8_1_5X8,
> MEDIA_BUS_FMT_YUYV8_1_5X8, 0,
> - V4L2_PIX_FMT_NV12, 8, "YUV 4:2:0 (NV12)", },
> + V4L2_PIX_FMT_NV12, 8, },
> };
>
> const struct iss_format_info *
> @@ -563,8 +563,6 @@ iss_video_enum_format(struct file *file, void *fh, struct
> v4l2_fmtdesc *f)
>
> if (index == 0) {
> f->pixelformat = info->pixelformat;
> - strscpy(f->description, info->description,
> - sizeof(f->description));
> return 0;
> }
>
> diff --git a/drivers/staging/media/omap4iss/iss_video.h
> b/drivers/staging/media/omap4iss/iss_video.h
> index f22489edb562..8b3dd92021e1 100644
> --- a/drivers/staging/media/omap4iss/iss_video.h
> +++ b/drivers/staging/media/omap4iss/iss_video.h
> @@ -36,7 +36,6 @@ struct v4l2_pix_format;
> * shifted to be 8 bits per pixel. =0 if format is not shiftable.
> * @pixelformat: V4L2 pixel format FCC identifier
> * @bpp: Bits per pixel
> - * @description: Human-readable format description
> */
> struct iss_format_info {
> u32 code;
> @@ -45,7 +44,6 @@ struct iss_format_info {
> u32 flavor;
> u32 pixelformat;
> unsigned int bpp;
> - const char *description;
> };
>
> enum iss_pipeline_stream_state {
> diff --git a/drivers/staging/media/soc_camera/soc_camera.c
> b/drivers/staging/media/soc_camera/soc_camera.c
> index a6232dcd59bc..7b9448e3c9ba 100644
> --- a/drivers/staging/media/soc_camera/soc_camera.c
> +++ b/drivers/staging/media/soc_camera/soc_camera.c
> @@ -869,8 +869,6 @@ static int soc_camera_enum_fmt_vid_cap(struct file *file,
> void *priv,
>
> format = icd->user_formats[f->index].host_fmt;
>
> - if (format->name)
> - strscpy(f->description, format->name, sizeof(f->description));
> f->pixelformat = format->fourcc;
> return 0;
> }
> diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
> b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
> index 49d0470f9a7e..07254a843ef3 100644
> --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
> +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
> @@ -74,34 +74,27 @@ static const struct v4l2_fract
> /* video formats */
> static struct mmal_fmt formats[] = {
> {
> - .name = "4:2:0, planar, YUV",
> .fourcc = V4L2_PIX_FMT_YUV420,
> - .flags = 0,
> .mmal = MMAL_ENCODING_I420,
> .depth = 12,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 1,
> .remove_padding = 1,
> }, {
> - .name = "4:2:2, packed, YUYV",
> .fourcc = V4L2_PIX_FMT_YUYV,
> - .flags = 0,
> .mmal = MMAL_ENCODING_YUYV,
> .depth = 16,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 2,
> .remove_padding = 0,
> }, {
> - .name = "RGB24 (LE)",
> .fourcc = V4L2_PIX_FMT_RGB24,
> - .flags = 0,
> .mmal = MMAL_ENCODING_RGB24,
> .depth = 24,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 3,
> .remove_padding = 0,
> }, {
> - .name = "JPEG",
> .fourcc = V4L2_PIX_FMT_JPEG,
> .flags = V4L2_FMT_FLAG_COMPRESSED,
> .mmal = MMAL_ENCODING_JPEG,
> @@ -110,7 +103,6 @@ static struct mmal_fmt formats[] = {
> .ybbp = 0,
> .remove_padding = 0,
> }, {
> - .name = "H264",
> .fourcc = V4L2_PIX_FMT_H264,
> .flags = V4L2_FMT_FLAG_COMPRESSED,
> .mmal = MMAL_ENCODING_H264,
> @@ -119,7 +111,6 @@ static struct mmal_fmt formats[] = {
> .ybbp = 0,
> .remove_padding = 0,
> }, {
> - .name = "MJPEG",
> .fourcc = V4L2_PIX_FMT_MJPEG,
> .flags = V4L2_FMT_FLAG_COMPRESSED,
> .mmal = MMAL_ENCODING_MJPEG,
> @@ -128,72 +119,56 @@ static struct mmal_fmt formats[] = {
> .ybbp = 0,
> .remove_padding = 0,
> }, {
> - .name = "4:2:2, packed, YVYU",
> .fourcc = V4L2_PIX_FMT_YVYU,
> - .flags = 0,
> .mmal = MMAL_ENCODING_YVYU,
> .depth = 16,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 2,
> .remove_padding = 0,
> }, {
> - .name = "4:2:2, packed, VYUY",
> .fourcc = V4L2_PIX_FMT_VYUY,
> - .flags = 0,
> .mmal = MMAL_ENCODING_VYUY,
> .depth = 16,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 2,
> .remove_padding = 0,
> }, {
> - .name = "4:2:2, packed, UYVY",
> .fourcc = V4L2_PIX_FMT_UYVY,
> - .flags = 0,
> .mmal = MMAL_ENCODING_UYVY,
> .depth = 16,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 2,
> .remove_padding = 0,
> }, {
> - .name = "4:2:0, planar, NV12",
> .fourcc = V4L2_PIX_FMT_NV12,
> - .flags = 0,
> .mmal = MMAL_ENCODING_NV12,
> .depth = 12,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 1,
> .remove_padding = 1,
> }, {
> - .name = "RGB24 (BE)",
> .fourcc = V4L2_PIX_FMT_BGR24,
> - .flags = 0,
> .mmal = MMAL_ENCODING_BGR24,
> .depth = 24,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 3,
> .remove_padding = 0,
> }, {
> - .name = "4:2:0, planar, YVU",
> .fourcc = V4L2_PIX_FMT_YVU420,
> - .flags = 0,
> .mmal = MMAL_ENCODING_YV12,
> .depth = 12,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 1,
> .remove_padding = 1,
> }, {
> - .name = "4:2:0, planar, NV21",
> .fourcc = V4L2_PIX_FMT_NV21,
> - .flags = 0,
> .mmal = MMAL_ENCODING_NV21,
> .depth = 12,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> .ybbp = 1,
> .remove_padding = 1,
> }, {
> - .name = "RGB32 (BE)",
> .fourcc = V4L2_PIX_FMT_BGR32,
> - .flags = 0,
> .mmal = MMAL_ENCODING_BGRA,
> .depth = 32,
> .mmal_component = MMAL_COMPONENT_CAMERA,
> @@ -674,9 +649,7 @@ static int vidioc_enum_fmt_vid_overlay(struct file *file,
> void *priv,
>
> fmt = &formats[f->index];
>
> - strlcpy((char *)f->description, fmt->name, sizeof(f->description));
> f->pixelformat = fmt->fourcc;
> - f->flags = fmt->flags;
>
> return 0;
> }
> @@ -877,9 +850,7 @@ static int vidioc_enum_fmt_vid_cap(struct file *file,
> void *priv,
>
> fmt = &formats[f->index];
>
> - strlcpy((char *)f->description, fmt->name, sizeof(f->description));
> f->pixelformat = fmt->fourcc;
> - f->flags = fmt->flags;
>
> return 0;
> }
> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h
> b/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h
> index a20bf274a4fd..df4ecbfdbe4a 100644
> --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h
> +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h
> @@ -23,7 +23,6 @@ struct mmal_msg_context;
>
> /* mapping between v4l and mmal video modes */
> struct mmal_fmt {
> - char *name;
> u32 fourcc; /* v4l2 format id */
> int flags; /* v4l2 flags field */
> u32 mmal;
> diff --git a/include/media/drv-intf/soc_mediabus.h
> b/include/media/drv-intf/soc_mediabus.h
> index 2ff773785fb6..28517ff9b4de 100644
> --- a/include/media/drv-intf/soc_mediabus.h
> +++ b/include/media/drv-intf/soc_mediabus.h
> @@ -69,7 +69,6 @@ enum soc_mbus_layout {
>
> /**
> * struct soc_mbus_pixelfmt - Data format on the media bus
> - * @name: Name of the format
> * @fourcc: Fourcc code, that will be obtained if the data is
> * stored in memory in the following way:
> * @packing: Type of sample-packing, that has to be used
> @@ -77,7 +76,6 @@ enum soc_mbus_layout {
> * @bits_per_sample: How many bits the bridge has to sample
> */
> struct soc_mbus_pixelfmt {
> - const char *name;
> u32 fourcc;
> enum soc_mbus_packing packing;
> enum soc_mbus_order order;
--
Regards,
Laurent Pinchart
