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[2/5] usb: uvc: move uvc_fmts and uvc_format_by_guid to own compile unit

Message ID 20221212194716.2995569-3-m.grzeschik@pengutronix.de (mailing list archive)
State Superseded
Headers show
Series usb: uvc: improve header files and function use | expand

Commit Message

Michael Grzeschik Dec. 12, 2022, 7:47 p.m. UTC 
The media driver USB_VIDEO_CLASS and USB_F_UVC are using the same
function uvc_format_by_guid. Since the function is inline, every user
will get a copy of the used uvc_fmts array and the function. This patch
moves the code to an own compile unit and add this dependency as
UVC_COMMON to both users.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
---
 drivers/media/common/Kconfig  |   3 +
 drivers/media/common/Makefile |   1 +
 drivers/media/common/uvc.c    | 214 ++++++++++++++++++++++++++++++++++
 drivers/media/usb/uvc/Kconfig |   1 +
 drivers/usb/gadget/Kconfig    |   1 +
 include/linux/usb/uvc.h       | 205 +-------------------------------
 6 files changed, 221 insertions(+), 204 deletions(-)
 create mode 100644 drivers/media/common/uvc.c

Comments

Laurent Pinchart Dec. 14, 2022, 10:59 a.m. UTC | #1 
Hi Michael,

Thank you for the patch.

On Mon, Dec 12, 2022 at 08:47:13PM +0100, Michael Grzeschik wrote:
> The media driver USB_VIDEO_CLASS and USB_F_UVC are using the same
> function uvc_format_by_guid. Since the function is inline, every user
> will get a copy of the used uvc_fmts array and the function. This patch
> moves the code to an own compile unit and add this dependency as
> UVC_COMMON to both users.
> 
> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
> ---
>  drivers/media/common/Kconfig  |   3 +
>  drivers/media/common/Makefile |   1 +
>  drivers/media/common/uvc.c    | 214 ++++++++++++++++++++++++++++++++++
>  drivers/media/usb/uvc/Kconfig |   1 +
>  drivers/usb/gadget/Kconfig    |   1 +
>  include/linux/usb/uvc.h       | 205 +-------------------------------
>  6 files changed, 221 insertions(+), 204 deletions(-)
>  create mode 100644 drivers/media/common/uvc.c
> 
> diff --git a/drivers/media/common/Kconfig b/drivers/media/common/Kconfig
> index 852b7d92fbdd93..b1bc58da27fcdd 100644
> --- a/drivers/media/common/Kconfig
> +++ b/drivers/media/common/Kconfig
> @@ -14,6 +14,9 @@ config TTPCI_EEPROM
>          tristate
>          depends on I2C
>  
> +config UVC_COMMON
> +	tristate
> +
>  config VIDEO_CX2341X
>  	tristate
>  
> diff --git a/drivers/media/common/Makefile b/drivers/media/common/Makefile
> index d78a0df154783a..3f17d696feb24c 100644
> --- a/drivers/media/common/Makefile
> +++ b/drivers/media/common/Makefile
> @@ -5,5 +5,6 @@ obj-y += b2c2/ siano/ v4l2-tpg/ videobuf2/
>  # (e. g. LC_ALL=C sort Makefile)
>  obj-$(CONFIG_CYPRESS_FIRMWARE) += cypress_firmware.o
>  obj-$(CONFIG_TTPCI_EEPROM) += ttpci-eeprom.o
> +obj-$(CONFIG_UVC_COMMON) += uvc.o
>  obj-$(CONFIG_VIDEO_CX2341X) += cx2341x.o
>  obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o
> diff --git a/drivers/media/common/uvc.c b/drivers/media/common/uvc.c
> new file mode 100644
> index 00000000000000..a3cf40215a0754
> --- /dev/null
> +++ b/drivers/media/common/uvc.c
> @@ -0,0 +1,214 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +
> +#include <linux/module.h>

You should also include string.h for memcmp(), and kernel.h for
ARRAY_SIZE().

Conditionally-Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

(which means you can add my Rb tag in the next version with this fixed)

> +#include <linux/types.h>
> +#include <linux/usb/uvc.h>
> +#include <linux/videodev2.h>
> +
> +/* ------------------------------------------------------------------------
> + * Video formats
> + */
> +
> +static struct uvc_format_desc uvc_fmts[] = {
> +	{
> +		.name		= "YUV 4:2:2 (YUYV)",
> +		.guid		= UVC_GUID_FORMAT_YUY2,
> +		.fcc		= V4L2_PIX_FMT_YUYV,
> +	},
> +	{
> +		.name		= "YUV 4:2:2 (YUYV)",
> +		.guid		= UVC_GUID_FORMAT_YUY2_ISIGHT,
> +		.fcc		= V4L2_PIX_FMT_YUYV,
> +	},
> +	{
> +		.name		= "YUV 4:2:0 (NV12)",
> +		.guid		= UVC_GUID_FORMAT_NV12,
> +		.fcc		= V4L2_PIX_FMT_NV12,
> +	},
> +	{
> +		.name		= "MJPEG",
> +		.guid		= UVC_GUID_FORMAT_MJPEG,
> +		.fcc		= V4L2_PIX_FMT_MJPEG,
> +	},
> +	{
> +		.name		= "YVU 4:2:0 (YV12)",
> +		.guid		= UVC_GUID_FORMAT_YV12,
> +		.fcc		= V4L2_PIX_FMT_YVU420,
> +	},
> +	{
> +		.name		= "YUV 4:2:0 (I420)",
> +		.guid		= UVC_GUID_FORMAT_I420,
> +		.fcc		= V4L2_PIX_FMT_YUV420,
> +	},
> +	{
> +		.name		= "YUV 4:2:0 (M420)",
> +		.guid		= UVC_GUID_FORMAT_M420,
> +		.fcc		= V4L2_PIX_FMT_M420,
> +	},
> +	{
> +		.name		= "YUV 4:2:2 (UYVY)",
> +		.guid		= UVC_GUID_FORMAT_UYVY,
> +		.fcc		= V4L2_PIX_FMT_UYVY,
> +	},
> +	{
> +		.name		= "Greyscale 8-bit (Y800)",
> +		.guid		= UVC_GUID_FORMAT_Y800,
> +		.fcc		= V4L2_PIX_FMT_GREY,
> +	},
> +	{
> +		.name		= "Greyscale 8-bit (Y8  )",
> +		.guid		= UVC_GUID_FORMAT_Y8,
> +		.fcc		= V4L2_PIX_FMT_GREY,
> +	},
> +	{
> +		.name		= "Greyscale 8-bit (D3DFMT_L8)",
> +		.guid		= UVC_GUID_FORMAT_D3DFMT_L8,
> +		.fcc		= V4L2_PIX_FMT_GREY,
> +	},
> +	{
> +		.name		= "IR 8-bit (L8_IR)",
> +		.guid		= UVC_GUID_FORMAT_KSMEDIA_L8_IR,
> +		.fcc		= V4L2_PIX_FMT_GREY,
> +	},
> +	{
> +		.name		= "Greyscale 10-bit (Y10 )",
> +		.guid		= UVC_GUID_FORMAT_Y10,
> +		.fcc		= V4L2_PIX_FMT_Y10,
> +	},
> +	{
> +		.name		= "Greyscale 12-bit (Y12 )",
> +		.guid		= UVC_GUID_FORMAT_Y12,
> +		.fcc		= V4L2_PIX_FMT_Y12,
> +	},
> +	{
> +		.name		= "Greyscale 16-bit (Y16 )",
> +		.guid		= UVC_GUID_FORMAT_Y16,
> +		.fcc		= V4L2_PIX_FMT_Y16,
> +	},
> +	{
> +		.name		= "BGGR Bayer (BY8 )",
> +		.guid		= UVC_GUID_FORMAT_BY8,
> +		.fcc		= V4L2_PIX_FMT_SBGGR8,
> +	},
> +	{
> +		.name		= "BGGR Bayer (BA81)",
> +		.guid		= UVC_GUID_FORMAT_BA81,
> +		.fcc		= V4L2_PIX_FMT_SBGGR8,
> +	},
> +	{
> +		.name		= "GBRG Bayer (GBRG)",
> +		.guid		= UVC_GUID_FORMAT_GBRG,
> +		.fcc		= V4L2_PIX_FMT_SGBRG8,
> +	},
> +	{
> +		.name		= "GRBG Bayer (GRBG)",
> +		.guid		= UVC_GUID_FORMAT_GRBG,
> +		.fcc		= V4L2_PIX_FMT_SGRBG8,
> +	},
> +	{
> +		.name		= "RGGB Bayer (RGGB)",
> +		.guid		= UVC_GUID_FORMAT_RGGB,
> +		.fcc		= V4L2_PIX_FMT_SRGGB8,
> +	},
> +	{
> +		.name		= "RGB565",
> +		.guid		= UVC_GUID_FORMAT_RGBP,
> +		.fcc		= V4L2_PIX_FMT_RGB565,
> +	},
> +	{
> +		.name		= "BGR 8:8:8 (BGR3)",
> +		.guid		= UVC_GUID_FORMAT_BGR3,
> +		.fcc		= V4L2_PIX_FMT_BGR24,
> +	},
> +	{
> +		.name		= "H.264",
> +		.guid		= UVC_GUID_FORMAT_H264,
> +		.fcc		= V4L2_PIX_FMT_H264,
> +	},
> +	{
> +		.name		= "H.265",
> +		.guid		= UVC_GUID_FORMAT_H265,
> +		.fcc		= V4L2_PIX_FMT_HEVC,
> +	},
> +	{
> +		.name		= "Greyscale 8 L/R (Y8I)",
> +		.guid		= UVC_GUID_FORMAT_Y8I,
> +		.fcc		= V4L2_PIX_FMT_Y8I,
> +	},
> +	{
> +		.name		= "Greyscale 12 L/R (Y12I)",
> +		.guid		= UVC_GUID_FORMAT_Y12I,
> +		.fcc		= V4L2_PIX_FMT_Y12I,
> +	},
> +	{
> +		.name		= "Depth data 16-bit (Z16)",
> +		.guid		= UVC_GUID_FORMAT_Z16,
> +		.fcc		= V4L2_PIX_FMT_Z16,
> +	},
> +	{
> +		.name		= "Bayer 10-bit (SRGGB10P)",
> +		.guid		= UVC_GUID_FORMAT_RW10,
> +		.fcc		= V4L2_PIX_FMT_SRGGB10P,
> +	},
> +	{
> +		.name		= "Bayer 16-bit (SBGGR16)",
> +		.guid		= UVC_GUID_FORMAT_BG16,
> +		.fcc		= V4L2_PIX_FMT_SBGGR16,
> +	},
> +	{
> +		.name		= "Bayer 16-bit (SGBRG16)",
> +		.guid		= UVC_GUID_FORMAT_GB16,
> +		.fcc		= V4L2_PIX_FMT_SGBRG16,
> +	},
> +	{
> +		.name		= "Bayer 16-bit (SRGGB16)",
> +		.guid		= UVC_GUID_FORMAT_RG16,
> +		.fcc		= V4L2_PIX_FMT_SRGGB16,
> +	},
> +	{
> +		.name		= "Bayer 16-bit (SGRBG16)",
> +		.guid		= UVC_GUID_FORMAT_GR16,
> +		.fcc		= V4L2_PIX_FMT_SGRBG16,
> +	},
> +	{
> +		.name		= "Depth data 16-bit (Z16)",
> +		.guid		= UVC_GUID_FORMAT_INVZ,
> +		.fcc		= V4L2_PIX_FMT_Z16,
> +	},
> +	{
> +		.name		= "Greyscale 10-bit (Y10 )",
> +		.guid		= UVC_GUID_FORMAT_INVI,
> +		.fcc		= V4L2_PIX_FMT_Y10,
> +	},
> +	{
> +		.name		= "IR:Depth 26-bit (INZI)",
> +		.guid		= UVC_GUID_FORMAT_INZI,
> +		.fcc		= V4L2_PIX_FMT_INZI,
> +	},
> +	{
> +		.name		= "4-bit Depth Confidence (Packed)",
> +		.guid		= UVC_GUID_FORMAT_CNF4,
> +		.fcc		= V4L2_PIX_FMT_CNF4,
> +	},
> +	{
> +		.name		= "HEVC",
> +		.guid		= UVC_GUID_FORMAT_HEVC,
> +		.fcc		= V4L2_PIX_FMT_HEVC,
> +	},
> +};
> +
> +struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16])
> +{
> +	unsigned int len = ARRAY_SIZE(uvc_fmts);
> +	unsigned int i;
> +
> +	for (i = 0; i < len; ++i) {
> +		if (memcmp(guid, uvc_fmts[i].guid, 16) == 0)
> +			return &uvc_fmts[i];
> +	}
> +
> +	return NULL;
> +}
> +EXPORT_SYMBOL_GPL(uvc_format_by_guid);
> +
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/media/usb/uvc/Kconfig b/drivers/media/usb/uvc/Kconfig
> index ca51ee8e45f39c..579532272fd6d7 100644
> --- a/drivers/media/usb/uvc/Kconfig
> +++ b/drivers/media/usb/uvc/Kconfig
> @@ -3,6 +3,7 @@ config USB_VIDEO_CLASS
>  	tristate "USB Video Class (UVC)"
>  	depends on VIDEO_DEV
>  	select VIDEOBUF2_VMALLOC
> +	select UVC_COMMON
>  	help
>  	  Support for the USB Video Class (UVC).  Currently only video
>  	  input devices, such as webcams, are supported.
> diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
> index 4fa2ddf322b48d..336db8f92afa6a 100644
> --- a/drivers/usb/gadget/Kconfig
> +++ b/drivers/usb/gadget/Kconfig
> @@ -203,6 +203,7 @@ config USB_F_UAC2
>  
>  config USB_F_UVC
>  	tristate
> +	select UVC_COMMON
>  
>  config USB_F_MIDI
>  	tristate
> diff --git a/include/linux/usb/uvc.h b/include/linux/usb/uvc.h
> index f83e31661333bb..a2dae2b40a2318 100644
> --- a/include/linux/usb/uvc.h
> +++ b/include/linux/usb/uvc.h
> @@ -145,215 +145,12 @@
>  	{ 'H',  'E',  'V',  'C', 0x00, 0x00, 0x10, 0x00, \
>  	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
>  
> -/* ------------------------------------------------------------------------
> - * Video formats
> - */
> -
>  struct uvc_format_desc {
>  	char *name;
>  	u8 guid[16];
>  	u32 fcc;
>  };
>  
> -static struct uvc_format_desc uvc_fmts[] = {
> -	{
> -		.name		= "YUV 4:2:2 (YUYV)",
> -		.guid		= UVC_GUID_FORMAT_YUY2,
> -		.fcc		= V4L2_PIX_FMT_YUYV,
> -	},
> -	{
> -		.name		= "YUV 4:2:2 (YUYV)",
> -		.guid		= UVC_GUID_FORMAT_YUY2_ISIGHT,
> -		.fcc		= V4L2_PIX_FMT_YUYV,
> -	},
> -	{
> -		.name		= "YUV 4:2:0 (NV12)",
> -		.guid		= UVC_GUID_FORMAT_NV12,
> -		.fcc		= V4L2_PIX_FMT_NV12,
> -	},
> -	{
> -		.name		= "MJPEG",
> -		.guid		= UVC_GUID_FORMAT_MJPEG,
> -		.fcc		= V4L2_PIX_FMT_MJPEG,
> -	},
> -	{
> -		.name		= "YVU 4:2:0 (YV12)",
> -		.guid		= UVC_GUID_FORMAT_YV12,
> -		.fcc		= V4L2_PIX_FMT_YVU420,
> -	},
> -	{
> -		.name		= "YUV 4:2:0 (I420)",
> -		.guid		= UVC_GUID_FORMAT_I420,
> -		.fcc		= V4L2_PIX_FMT_YUV420,
> -	},
> -	{
> -		.name		= "YUV 4:2:0 (M420)",
> -		.guid		= UVC_GUID_FORMAT_M420,
> -		.fcc		= V4L2_PIX_FMT_M420,
> -	},
> -	{
> -		.name		= "YUV 4:2:2 (UYVY)",
> -		.guid		= UVC_GUID_FORMAT_UYVY,
> -		.fcc		= V4L2_PIX_FMT_UYVY,
> -	},
> -	{
> -		.name		= "Greyscale 8-bit (Y800)",
> -		.guid		= UVC_GUID_FORMAT_Y800,
> -		.fcc		= V4L2_PIX_FMT_GREY,
> -	},
> -	{
> -		.name		= "Greyscale 8-bit (Y8  )",
> -		.guid		= UVC_GUID_FORMAT_Y8,
> -		.fcc		= V4L2_PIX_FMT_GREY,
> -	},
> -	{
> -		.name		= "Greyscale 8-bit (D3DFMT_L8)",
> -		.guid		= UVC_GUID_FORMAT_D3DFMT_L8,
> -		.fcc		= V4L2_PIX_FMT_GREY,
> -	},
> -	{
> -		.name		= "IR 8-bit (L8_IR)",
> -		.guid		= UVC_GUID_FORMAT_KSMEDIA_L8_IR,
> -		.fcc		= V4L2_PIX_FMT_GREY,
> -	},
> -	{
> -		.name		= "Greyscale 10-bit (Y10 )",
> -		.guid		= UVC_GUID_FORMAT_Y10,
> -		.fcc		= V4L2_PIX_FMT_Y10,
> -	},
> -	{
> -		.name		= "Greyscale 12-bit (Y12 )",
> -		.guid		= UVC_GUID_FORMAT_Y12,
> -		.fcc		= V4L2_PIX_FMT_Y12,
> -	},
> -	{
> -		.name		= "Greyscale 16-bit (Y16 )",
> -		.guid		= UVC_GUID_FORMAT_Y16,
> -		.fcc		= V4L2_PIX_FMT_Y16,
> -	},
> -	{
> -		.name		= "BGGR Bayer (BY8 )",
> -		.guid		= UVC_GUID_FORMAT_BY8,
> -		.fcc		= V4L2_PIX_FMT_SBGGR8,
> -	},
> -	{
> -		.name		= "BGGR Bayer (BA81)",
> -		.guid		= UVC_GUID_FORMAT_BA81,
> -		.fcc		= V4L2_PIX_FMT_SBGGR8,
> -	},
> -	{
> -		.name		= "GBRG Bayer (GBRG)",
> -		.guid		= UVC_GUID_FORMAT_GBRG,
> -		.fcc		= V4L2_PIX_FMT_SGBRG8,
> -	},
> -	{
> -		.name		= "GRBG Bayer (GRBG)",
> -		.guid		= UVC_GUID_FORMAT_GRBG,
> -		.fcc		= V4L2_PIX_FMT_SGRBG8,
> -	},
> -	{
> -		.name		= "RGGB Bayer (RGGB)",
> -		.guid		= UVC_GUID_FORMAT_RGGB,
> -		.fcc		= V4L2_PIX_FMT_SRGGB8,
> -	},
> -	{
> -		.name		= "RGB565",
> -		.guid		= UVC_GUID_FORMAT_RGBP,
> -		.fcc		= V4L2_PIX_FMT_RGB565,
> -	},
> -	{
> -		.name		= "BGR 8:8:8 (BGR3)",
> -		.guid		= UVC_GUID_FORMAT_BGR3,
> -		.fcc		= V4L2_PIX_FMT_BGR24,
> -	},
> -	{
> -		.name		= "H.264",
> -		.guid		= UVC_GUID_FORMAT_H264,
> -		.fcc		= V4L2_PIX_FMT_H264,
> -	},
> -	{
> -		.name		= "H.265",
> -		.guid		= UVC_GUID_FORMAT_H265,
> -		.fcc		= V4L2_PIX_FMT_HEVC,
> -	},
> -	{
> -		.name		= "Greyscale 8 L/R (Y8I)",
> -		.guid		= UVC_GUID_FORMAT_Y8I,
> -		.fcc		= V4L2_PIX_FMT_Y8I,
> -	},
> -	{
> -		.name		= "Greyscale 12 L/R (Y12I)",
> -		.guid		= UVC_GUID_FORMAT_Y12I,
> -		.fcc		= V4L2_PIX_FMT_Y12I,
> -	},
> -	{
> -		.name		= "Depth data 16-bit (Z16)",
> -		.guid		= UVC_GUID_FORMAT_Z16,
> -		.fcc		= V4L2_PIX_FMT_Z16,
> -	},
> -	{
> -		.name		= "Bayer 10-bit (SRGGB10P)",
> -		.guid		= UVC_GUID_FORMAT_RW10,
> -		.fcc		= V4L2_PIX_FMT_SRGGB10P,
> -	},
> -	{
> -		.name		= "Bayer 16-bit (SBGGR16)",
> -		.guid		= UVC_GUID_FORMAT_BG16,
> -		.fcc		= V4L2_PIX_FMT_SBGGR16,
> -	},
> -	{
> -		.name		= "Bayer 16-bit (SGBRG16)",
> -		.guid		= UVC_GUID_FORMAT_GB16,
> -		.fcc		= V4L2_PIX_FMT_SGBRG16,
> -	},
> -	{
> -		.name		= "Bayer 16-bit (SRGGB16)",
> -		.guid		= UVC_GUID_FORMAT_RG16,
> -		.fcc		= V4L2_PIX_FMT_SRGGB16,
> -	},
> -	{
> -		.name		= "Bayer 16-bit (SGRBG16)",
> -		.guid		= UVC_GUID_FORMAT_GR16,
> -		.fcc		= V4L2_PIX_FMT_SGRBG16,
> -	},
> -	{
> -		.name		= "Depth data 16-bit (Z16)",
> -		.guid		= UVC_GUID_FORMAT_INVZ,
> -		.fcc		= V4L2_PIX_FMT_Z16,
> -	},
> -	{
> -		.name		= "Greyscale 10-bit (Y10 )",
> -		.guid		= UVC_GUID_FORMAT_INVI,
> -		.fcc		= V4L2_PIX_FMT_Y10,
> -	},
> -	{
> -		.name		= "IR:Depth 26-bit (INZI)",
> -		.guid		= UVC_GUID_FORMAT_INZI,
> -		.fcc		= V4L2_PIX_FMT_INZI,
> -	},
> -	{
> -		.name		= "4-bit Depth Confidence (Packed)",
> -		.guid		= UVC_GUID_FORMAT_CNF4,
> -		.fcc		= V4L2_PIX_FMT_CNF4,
> -	},
> -	{
> -		.name		= "HEVC",
> -		.guid		= UVC_GUID_FORMAT_HEVC,
> -		.fcc		= V4L2_PIX_FMT_HEVC,
> -	},
> -};
> -
> -static inline struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16])
> -{
> -	unsigned int len = ARRAY_SIZE(uvc_fmts);
> -	unsigned int i;
> -
> -	for (i = 0; i < len; ++i) {
> -		if (memcmp(guid, uvc_fmts[i].guid, 16) == 0)
> -			return &uvc_fmts[i];
> -	}
> -
> -	return NULL;
> -}
> +struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16]);
>  
>  #endif /* __LINUX_V4L2_UVC_H */
diff mbox series

Patch

diff --git a/drivers/media/common/Kconfig b/drivers/media/common/Kconfig
index 852b7d92fbdd93..b1bc58da27fcdd 100644
--- a/drivers/media/common/Kconfig
+++ b/drivers/media/common/Kconfig
@@ -14,6 +14,9 @@  config TTPCI_EEPROM
         tristate
         depends on I2C
 
+config UVC_COMMON
+	tristate
+
 config VIDEO_CX2341X
 	tristate
 
diff --git a/drivers/media/common/Makefile b/drivers/media/common/Makefile
index d78a0df154783a..3f17d696feb24c 100644
--- a/drivers/media/common/Makefile
+++ b/drivers/media/common/Makefile
@@ -5,5 +5,6 @@  obj-y += b2c2/ siano/ v4l2-tpg/ videobuf2/
 # (e. g. LC_ALL=C sort Makefile)
 obj-$(CONFIG_CYPRESS_FIRMWARE) += cypress_firmware.o
 obj-$(CONFIG_TTPCI_EEPROM) += ttpci-eeprom.o
+obj-$(CONFIG_UVC_COMMON) += uvc.o
 obj-$(CONFIG_VIDEO_CX2341X) += cx2341x.o
 obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o
diff --git a/drivers/media/common/uvc.c b/drivers/media/common/uvc.c
new file mode 100644
index 00000000000000..a3cf40215a0754
--- /dev/null
+++ b/drivers/media/common/uvc.c
@@ -0,0 +1,214 @@ 
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/usb/uvc.h>
+#include <linux/videodev2.h>
+
+/* ------------------------------------------------------------------------
+ * Video formats
+ */
+
+static struct uvc_format_desc uvc_fmts[] = {
+	{
+		.name		= "YUV 4:2:2 (YUYV)",
+		.guid		= UVC_GUID_FORMAT_YUY2,
+		.fcc		= V4L2_PIX_FMT_YUYV,
+	},
+	{
+		.name		= "YUV 4:2:2 (YUYV)",
+		.guid		= UVC_GUID_FORMAT_YUY2_ISIGHT,
+		.fcc		= V4L2_PIX_FMT_YUYV,
+	},
+	{
+		.name		= "YUV 4:2:0 (NV12)",
+		.guid		= UVC_GUID_FORMAT_NV12,
+		.fcc		= V4L2_PIX_FMT_NV12,
+	},
+	{
+		.name		= "MJPEG",
+		.guid		= UVC_GUID_FORMAT_MJPEG,
+		.fcc		= V4L2_PIX_FMT_MJPEG,
+	},
+	{
+		.name		= "YVU 4:2:0 (YV12)",
+		.guid		= UVC_GUID_FORMAT_YV12,
+		.fcc		= V4L2_PIX_FMT_YVU420,
+	},
+	{
+		.name		= "YUV 4:2:0 (I420)",
+		.guid		= UVC_GUID_FORMAT_I420,
+		.fcc		= V4L2_PIX_FMT_YUV420,
+	},
+	{
+		.name		= "YUV 4:2:0 (M420)",
+		.guid		= UVC_GUID_FORMAT_M420,
+		.fcc		= V4L2_PIX_FMT_M420,
+	},
+	{
+		.name		= "YUV 4:2:2 (UYVY)",
+		.guid		= UVC_GUID_FORMAT_UYVY,
+		.fcc		= V4L2_PIX_FMT_UYVY,
+	},
+	{
+		.name		= "Greyscale 8-bit (Y800)",
+		.guid		= UVC_GUID_FORMAT_Y800,
+		.fcc		= V4L2_PIX_FMT_GREY,
+	},
+	{
+		.name		= "Greyscale 8-bit (Y8  )",
+		.guid		= UVC_GUID_FORMAT_Y8,
+		.fcc		= V4L2_PIX_FMT_GREY,
+	},
+	{
+		.name		= "Greyscale 8-bit (D3DFMT_L8)",
+		.guid		= UVC_GUID_FORMAT_D3DFMT_L8,
+		.fcc		= V4L2_PIX_FMT_GREY,
+	},
+	{
+		.name		= "IR 8-bit (L8_IR)",
+		.guid		= UVC_GUID_FORMAT_KSMEDIA_L8_IR,
+		.fcc		= V4L2_PIX_FMT_GREY,
+	},
+	{
+		.name		= "Greyscale 10-bit (Y10 )",
+		.guid		= UVC_GUID_FORMAT_Y10,
+		.fcc		= V4L2_PIX_FMT_Y10,
+	},
+	{
+		.name		= "Greyscale 12-bit (Y12 )",
+		.guid		= UVC_GUID_FORMAT_Y12,
+		.fcc		= V4L2_PIX_FMT_Y12,
+	},
+	{
+		.name		= "Greyscale 16-bit (Y16 )",
+		.guid		= UVC_GUID_FORMAT_Y16,
+		.fcc		= V4L2_PIX_FMT_Y16,
+	},
+	{
+		.name		= "BGGR Bayer (BY8 )",
+		.guid		= UVC_GUID_FORMAT_BY8,
+		.fcc		= V4L2_PIX_FMT_SBGGR8,
+	},
+	{
+		.name		= "BGGR Bayer (BA81)",
+		.guid		= UVC_GUID_FORMAT_BA81,
+		.fcc		= V4L2_PIX_FMT_SBGGR8,
+	},
+	{
+		.name		= "GBRG Bayer (GBRG)",
+		.guid		= UVC_GUID_FORMAT_GBRG,
+		.fcc		= V4L2_PIX_FMT_SGBRG8,
+	},
+	{
+		.name		= "GRBG Bayer (GRBG)",
+		.guid		= UVC_GUID_FORMAT_GRBG,
+		.fcc		= V4L2_PIX_FMT_SGRBG8,
+	},
+	{
+		.name		= "RGGB Bayer (RGGB)",
+		.guid		= UVC_GUID_FORMAT_RGGB,
+		.fcc		= V4L2_PIX_FMT_SRGGB8,
+	},
+	{
+		.name		= "RGB565",
+		.guid		= UVC_GUID_FORMAT_RGBP,
+		.fcc		= V4L2_PIX_FMT_RGB565,
+	},
+	{
+		.name		= "BGR 8:8:8 (BGR3)",
+		.guid		= UVC_GUID_FORMAT_BGR3,
+		.fcc		= V4L2_PIX_FMT_BGR24,
+	},
+	{
+		.name		= "H.264",
+		.guid		= UVC_GUID_FORMAT_H264,
+		.fcc		= V4L2_PIX_FMT_H264,
+	},
+	{
+		.name		= "H.265",
+		.guid		= UVC_GUID_FORMAT_H265,
+		.fcc		= V4L2_PIX_FMT_HEVC,
+	},
+	{
+		.name		= "Greyscale 8 L/R (Y8I)",
+		.guid		= UVC_GUID_FORMAT_Y8I,
+		.fcc		= V4L2_PIX_FMT_Y8I,
+	},
+	{
+		.name		= "Greyscale 12 L/R (Y12I)",
+		.guid		= UVC_GUID_FORMAT_Y12I,
+		.fcc		= V4L2_PIX_FMT_Y12I,
+	},
+	{
+		.name		= "Depth data 16-bit (Z16)",
+		.guid		= UVC_GUID_FORMAT_Z16,
+		.fcc		= V4L2_PIX_FMT_Z16,
+	},
+	{
+		.name		= "Bayer 10-bit (SRGGB10P)",
+		.guid		= UVC_GUID_FORMAT_RW10,
+		.fcc		= V4L2_PIX_FMT_SRGGB10P,
+	},
+	{
+		.name		= "Bayer 16-bit (SBGGR16)",
+		.guid		= UVC_GUID_FORMAT_BG16,
+		.fcc		= V4L2_PIX_FMT_SBGGR16,
+	},
+	{
+		.name		= "Bayer 16-bit (SGBRG16)",
+		.guid		= UVC_GUID_FORMAT_GB16,
+		.fcc		= V4L2_PIX_FMT_SGBRG16,
+	},
+	{
+		.name		= "Bayer 16-bit (SRGGB16)",
+		.guid		= UVC_GUID_FORMAT_RG16,
+		.fcc		= V4L2_PIX_FMT_SRGGB16,
+	},
+	{
+		.name		= "Bayer 16-bit (SGRBG16)",
+		.guid		= UVC_GUID_FORMAT_GR16,
+		.fcc		= V4L2_PIX_FMT_SGRBG16,
+	},
+	{
+		.name		= "Depth data 16-bit (Z16)",
+		.guid		= UVC_GUID_FORMAT_INVZ,
+		.fcc		= V4L2_PIX_FMT_Z16,
+	},
+	{
+		.name		= "Greyscale 10-bit (Y10 )",
+		.guid		= UVC_GUID_FORMAT_INVI,
+		.fcc		= V4L2_PIX_FMT_Y10,
+	},
+	{
+		.name		= "IR:Depth 26-bit (INZI)",
+		.guid		= UVC_GUID_FORMAT_INZI,
+		.fcc		= V4L2_PIX_FMT_INZI,
+	},
+	{
+		.name		= "4-bit Depth Confidence (Packed)",
+		.guid		= UVC_GUID_FORMAT_CNF4,
+		.fcc		= V4L2_PIX_FMT_CNF4,
+	},
+	{
+		.name		= "HEVC",
+		.guid		= UVC_GUID_FORMAT_HEVC,
+		.fcc		= V4L2_PIX_FMT_HEVC,
+	},
+};
+
+struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16])
+{
+	unsigned int len = ARRAY_SIZE(uvc_fmts);
+	unsigned int i;
+
+	for (i = 0; i < len; ++i) {
+		if (memcmp(guid, uvc_fmts[i].guid, 16) == 0)
+			return &uvc_fmts[i];
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(uvc_format_by_guid);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/usb/uvc/Kconfig b/drivers/media/usb/uvc/Kconfig
index ca51ee8e45f39c..579532272fd6d7 100644
--- a/drivers/media/usb/uvc/Kconfig
+++ b/drivers/media/usb/uvc/Kconfig
@@ -3,6 +3,7 @@  config USB_VIDEO_CLASS
 	tristate "USB Video Class (UVC)"
 	depends on VIDEO_DEV
 	select VIDEOBUF2_VMALLOC
+	select UVC_COMMON
 	help
 	  Support for the USB Video Class (UVC).  Currently only video
 	  input devices, such as webcams, are supported.
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 4fa2ddf322b48d..336db8f92afa6a 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -203,6 +203,7 @@  config USB_F_UAC2
 
 config USB_F_UVC
 	tristate
+	select UVC_COMMON
 
 config USB_F_MIDI
 	tristate
diff --git a/include/linux/usb/uvc.h b/include/linux/usb/uvc.h
index f83e31661333bb..a2dae2b40a2318 100644
--- a/include/linux/usb/uvc.h
+++ b/include/linux/usb/uvc.h
@@ -145,215 +145,12 @@ 
 	{ 'H',  'E',  'V',  'C', 0x00, 0x00, 0x10, 0x00, \
 	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
 
-/* ------------------------------------------------------------------------
- * Video formats
- */
-
 struct uvc_format_desc {
 	char *name;
 	u8 guid[16];
 	u32 fcc;
 };
 
-static struct uvc_format_desc uvc_fmts[] = {
-	{
-		.name		= "YUV 4:2:2 (YUYV)",
-		.guid		= UVC_GUID_FORMAT_YUY2,
-		.fcc		= V4L2_PIX_FMT_YUYV,
-	},
-	{
-		.name		= "YUV 4:2:2 (YUYV)",
-		.guid		= UVC_GUID_FORMAT_YUY2_ISIGHT,
-		.fcc		= V4L2_PIX_FMT_YUYV,
-	},
-	{
-		.name		= "YUV 4:2:0 (NV12)",
-		.guid		= UVC_GUID_FORMAT_NV12,
-		.fcc		= V4L2_PIX_FMT_NV12,
-	},
-	{
-		.name		= "MJPEG",
-		.guid		= UVC_GUID_FORMAT_MJPEG,
-		.fcc		= V4L2_PIX_FMT_MJPEG,
-	},
-	{
-		.name		= "YVU 4:2:0 (YV12)",
-		.guid		= UVC_GUID_FORMAT_YV12,
-		.fcc		= V4L2_PIX_FMT_YVU420,
-	},
-	{
-		.name		= "YUV 4:2:0 (I420)",
-		.guid		= UVC_GUID_FORMAT_I420,
-		.fcc		= V4L2_PIX_FMT_YUV420,
-	},
-	{
-		.name		= "YUV 4:2:0 (M420)",
-		.guid		= UVC_GUID_FORMAT_M420,
-		.fcc		= V4L2_PIX_FMT_M420,
-	},
-	{
-		.name		= "YUV 4:2:2 (UYVY)",
-		.guid		= UVC_GUID_FORMAT_UYVY,
-		.fcc		= V4L2_PIX_FMT_UYVY,
-	},
-	{
-		.name		= "Greyscale 8-bit (Y800)",
-		.guid		= UVC_GUID_FORMAT_Y800,
-		.fcc		= V4L2_PIX_FMT_GREY,
-	},
-	{
-		.name		= "Greyscale 8-bit (Y8  )",
-		.guid		= UVC_GUID_FORMAT_Y8,
-		.fcc		= V4L2_PIX_FMT_GREY,
-	},
-	{
-		.name		= "Greyscale 8-bit (D3DFMT_L8)",
-		.guid		= UVC_GUID_FORMAT_D3DFMT_L8,
-		.fcc		= V4L2_PIX_FMT_GREY,
-	},
-	{
-		.name		= "IR 8-bit (L8_IR)",
-		.guid		= UVC_GUID_FORMAT_KSMEDIA_L8_IR,
-		.fcc		= V4L2_PIX_FMT_GREY,
-	},
-	{
-		.name		= "Greyscale 10-bit (Y10 )",
-		.guid		= UVC_GUID_FORMAT_Y10,
-		.fcc		= V4L2_PIX_FMT_Y10,
-	},
-	{
-		.name		= "Greyscale 12-bit (Y12 )",
-		.guid		= UVC_GUID_FORMAT_Y12,
-		.fcc		= V4L2_PIX_FMT_Y12,
-	},
-	{
-		.name		= "Greyscale 16-bit (Y16 )",
-		.guid		= UVC_GUID_FORMAT_Y16,
-		.fcc		= V4L2_PIX_FMT_Y16,
-	},
-	{
-		.name		= "BGGR Bayer (BY8 )",
-		.guid		= UVC_GUID_FORMAT_BY8,
-		.fcc		= V4L2_PIX_FMT_SBGGR8,
-	},
-	{
-		.name		= "BGGR Bayer (BA81)",
-		.guid		= UVC_GUID_FORMAT_BA81,
-		.fcc		= V4L2_PIX_FMT_SBGGR8,
-	},
-	{
-		.name		= "GBRG Bayer (GBRG)",
-		.guid		= UVC_GUID_FORMAT_GBRG,
-		.fcc		= V4L2_PIX_FMT_SGBRG8,
-	},
-	{
-		.name		= "GRBG Bayer (GRBG)",
-		.guid		= UVC_GUID_FORMAT_GRBG,
-		.fcc		= V4L2_PIX_FMT_SGRBG8,
-	},
-	{
-		.name		= "RGGB Bayer (RGGB)",
-		.guid		= UVC_GUID_FORMAT_RGGB,
-		.fcc		= V4L2_PIX_FMT_SRGGB8,
-	},
-	{
-		.name		= "RGB565",
-		.guid		= UVC_GUID_FORMAT_RGBP,
-		.fcc		= V4L2_PIX_FMT_RGB565,
-	},
-	{
-		.name		= "BGR 8:8:8 (BGR3)",
-		.guid		= UVC_GUID_FORMAT_BGR3,
-		.fcc		= V4L2_PIX_FMT_BGR24,
-	},
-	{
-		.name		= "H.264",
-		.guid		= UVC_GUID_FORMAT_H264,
-		.fcc		= V4L2_PIX_FMT_H264,
-	},
-	{
-		.name		= "H.265",
-		.guid		= UVC_GUID_FORMAT_H265,
-		.fcc		= V4L2_PIX_FMT_HEVC,
-	},
-	{
-		.name		= "Greyscale 8 L/R (Y8I)",
-		.guid		= UVC_GUID_FORMAT_Y8I,
-		.fcc		= V4L2_PIX_FMT_Y8I,
-	},
-	{
-		.name		= "Greyscale 12 L/R (Y12I)",
-		.guid		= UVC_GUID_FORMAT_Y12I,
-		.fcc		= V4L2_PIX_FMT_Y12I,
-	},
-	{
-		.name		= "Depth data 16-bit (Z16)",
-		.guid		= UVC_GUID_FORMAT_Z16,
-		.fcc		= V4L2_PIX_FMT_Z16,
-	},
-	{
-		.name		= "Bayer 10-bit (SRGGB10P)",
-		.guid		= UVC_GUID_FORMAT_RW10,
-		.fcc		= V4L2_PIX_FMT_SRGGB10P,
-	},
-	{
-		.name		= "Bayer 16-bit (SBGGR16)",
-		.guid		= UVC_GUID_FORMAT_BG16,
-		.fcc		= V4L2_PIX_FMT_SBGGR16,
-	},
-	{
-		.name		= "Bayer 16-bit (SGBRG16)",
-		.guid		= UVC_GUID_FORMAT_GB16,
-		.fcc		= V4L2_PIX_FMT_SGBRG16,
-	},
-	{
-		.name		= "Bayer 16-bit (SRGGB16)",
-		.guid		= UVC_GUID_FORMAT_RG16,
-		.fcc		= V4L2_PIX_FMT_SRGGB16,
-	},
-	{
-		.name		= "Bayer 16-bit (SGRBG16)",
-		.guid		= UVC_GUID_FORMAT_GR16,
-		.fcc		= V4L2_PIX_FMT_SGRBG16,
-	},
-	{
-		.name		= "Depth data 16-bit (Z16)",
-		.guid		= UVC_GUID_FORMAT_INVZ,
-		.fcc		= V4L2_PIX_FMT_Z16,
-	},
-	{
-		.name		= "Greyscale 10-bit (Y10 )",
-		.guid		= UVC_GUID_FORMAT_INVI,
-		.fcc		= V4L2_PIX_FMT_Y10,
-	},
-	{
-		.name		= "IR:Depth 26-bit (INZI)",
-		.guid		= UVC_GUID_FORMAT_INZI,
-		.fcc		= V4L2_PIX_FMT_INZI,
-	},
-	{
-		.name		= "4-bit Depth Confidence (Packed)",
-		.guid		= UVC_GUID_FORMAT_CNF4,
-		.fcc		= V4L2_PIX_FMT_CNF4,
-	},
-	{
-		.name		= "HEVC",
-		.guid		= UVC_GUID_FORMAT_HEVC,
-		.fcc		= V4L2_PIX_FMT_HEVC,
-	},
-};
-
-static inline struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16])
-{
-	unsigned int len = ARRAY_SIZE(uvc_fmts);
-	unsigned int i;
-
-	for (i = 0; i < len; ++i) {
-		if (memcmp(guid, uvc_fmts[i].guid, 16) == 0)
-			return &uvc_fmts[i];
-	}
-
-	return NULL;
-}
+struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16]);
 
 #endif /* __LINUX_V4L2_UVC_H */