Message-ID: <aP+isGnWmJ4tLXcs@lizhi-Precision-Tower-5810>
Date: Mon, 27 Oct 2025 12:49:52 -0400
From: Frank Li <Frank.li@....com>
To: Sakari Ailus <sakari.ailus@....fi>
Cc: Rui Miguel Silva <rmfrfs@...il.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Martin Kepplinger <martink@...teo.de>,
	Purism Kernel Team <kernel@...i.sm>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Eugen Hristev <eugen.hristev@...aro.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, Peng Fan <peng.fan@....com>,
	Alice Yuan <alice.yuan@....com>, Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Steve Longerbeam <slongerbeam@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-media@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-phy@...ts.infradead.org,
	linux-staging@...ts.linux.dev
Subject: Re: [PATCH v3 03/31] media: v4l2-common: Add helper function
 media_bus_fmt_to_csi2_(bpp|dt)()

On Mon, Oct 27, 2025 at 11:04:51AM +0200, Sakari Ailus wrote:
> Hi Frank,
>
> On Thu, Aug 21, 2025 at 04:15:38PM -0400, Frank Li wrote:
> > Add helper function media_bus_fmt_to_csi2_bpp() to get media bus fmt's bpp
> > to reduce codes such as
> >
> > 	static const struct imx7_csi_pixfmt pixel_formats[] = {
> >         {
> >                 .fourcc = V4L2_PIX_FMT_UYVY,
> >                 .codes  = IMX_BUS_FMTS(
> >                         MEDIA_BUS_FMT_UYVY8_2X8,
> >                         MEDIA_BUS_FMT_UYVY8_1X16
> >                 ),
> >                 .yuv    = true,
> >                 .bpp    = 16,
> >         },
> > 	....
> >
> > .bpp can be removed from pixel_formats with this helper function.
> >
> > CSI2 data type is defined by MIPI Camera Serial Interface 2 Spec Ver4.1.
> > See section 9.4.
> >
> > Add helper function media_bus_fmt_to_csi2_dt() to convert media bus fmt to
> > MIPI defined data type and avoid below duplicated static array in each CSI2
> > drivers.
> >
> > 	{
> > 		.code = MEDIA_BUS_FMT_UYVY8_1X16,
> > 		.data_type = MIPI_CSI2_DT_YUV422_8B,
> > 	}
> >
> > Only add known map for dt type. Need update media_bus_fmt_info when new
> > mapping used.
> >
> > Signed-off-by: Frank Li <Frank.Li@....com>
> > ---
> > Change in v3:
> > - squash two help function patch to one.
> > - use media_bus_fmt_info to do map.
> > ---
> >  drivers/media/v4l2-core/v4l2-common.c | 149 ++++++++++++++++++++++++++++++++++
> >  include/media/mipi-csi2.h             |  30 +++++++
> >  2 files changed, 179 insertions(+)
> >
> > diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
> > index a5334aa35992e5f57fb228c33d40c51fdafdc135..a75987aa5fc69d6368709b7d521bede666da9513 100644
> > --- a/drivers/media/v4l2-core/v4l2-common.c
> > +++ b/drivers/media/v4l2-core/v4l2-common.c
> > @@ -46,6 +46,7 @@
> >  #include <linux/uaccess.h>
> >  #include <asm/io.h>
> >  #include <asm/div64.h>
> > +#include <media/mipi-csi2.h>
> >  #include <media/v4l2-common.h>
> >  #include <media/v4l2-device.h>
> >  #include <media/v4l2-ctrls.h>
> > @@ -757,3 +758,151 @@ struct clk *devm_v4l2_sensor_clk_get(struct device *dev, const char *id)
> >  	return clk_hw->clk;
> >  }
> >  EXPORT_SYMBOL_GPL(devm_v4l2_sensor_clk_get);
> > +
> > +static const struct media_bus_fmt_info media_bus_fmt_info[] = {
> > +	{ .fmt = MEDIA_BUS_FMT_RGB444_1X12, .bpp = 12},
>
> Please add a comma and a whitespace before the closing brace.
>
> > +	{ .fmt = MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB565_1X16, .dt = MIPI_CSI2_DT_RGB565, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_BGR565_2X8_BE, .dt = MIPI_CSI2_DT_RGB565, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_BGR565_2X8_LE, .dt = MIPI_CSI2_DT_RGB565, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB565_2X8_BE, .dt = MIPI_CSI2_DT_RGB565, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB565_2X8_LE, .dt = MIPI_CSI2_DT_RGB565, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB666_1X18, .bpp = 18},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB666_2X9_BE, .bpp = 18},
> > +	{ .fmt = MEDIA_BUS_FMT_BGR666_1X18, .bpp = 18},
> > +	{ .fmt = MEDIA_BUS_FMT_RBG888_1X24, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB666_1X24_CPADHI, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_BGR666_1X24_CPADHI, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB565_1X24_CPADHI, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG, .bpp = 21},
> > +	{ .fmt = MEDIA_BUS_FMT_BGR888_1X24, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_BGR888_3X8, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_GBR888_1X24, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_1X24, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_2X12_BE, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_2X12_LE, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_3X8, .dt = MIPI_CSI2_DT_RGB888, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_3X8_DELTA, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG, .bpp = 28},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA, .bpp = 28},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB666_1X30_CPADLO, .bpp = 30},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_1X30_CPADLO, .bpp = 30},
> > +	{ .fmt = MEDIA_BUS_FMT_ARGB8888_1X32, .bpp = 32},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_1X32_PADHI, .bpp = 32},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB101010_1X30, .bpp = 30},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB101010_1X7X5_SPWG, .bpp = 35},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB101010_1X7X5_JEIDA, .bpp = 35},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB666_1X36_CPADLO, .bpp = 36},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB888_1X36_CPADLO, .bpp = 36},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB121212_1X36, .bpp = 36},
> > +	{ .fmt = MEDIA_BUS_FMT_RGB161616_1X48, .bpp = 48},
> > +
> > +	{ .fmt = MEDIA_BUS_FMT_Y8_1X8, .dt = MIPI_CSI2_DT_RAW8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_UV8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_UYVY8_1_5X8, .bpp = 40},
> > +	{ .fmt = MEDIA_BUS_FMT_VYUY8_1_5X8, .bpp = 40},
> > +	{ .fmt = MEDIA_BUS_FMT_YUYV8_1_5X8, .bpp = 40},
> > +	{ .fmt = MEDIA_BUS_FMT_YVYU8_1_5X8, .bpp = 40},
> > +	{ .fmt = MEDIA_BUS_FMT_UYVY8_2X8, .dt = MIPI_CSI2_DT_YUV422_8B, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_VYUY8_2X8, .dt = MIPI_CSI2_DT_YUV422_8B, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_YUYV8_2X8, .dt = MIPI_CSI2_DT_YUV422_8B, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_YVYU8_2X8, .dt = MIPI_CSI2_DT_YUV422_8B, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_Y10_1X10, .dt = MIPI_CSI2_DT_RAW10, .bpp = 10},
> > +	{ .fmt = MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_UYVY10_2X10, .dt = MIPI_CSI2_DT_YUV422_10B, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_VYUY10_2X10, .dt = MIPI_CSI2_DT_YUV422_10B, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_YUYV10_2X10, .dt = MIPI_CSI2_DT_YUV422_10B, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_YVYU10_2X10, .dt = MIPI_CSI2_DT_YUV422_10B, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_Y12_1X12, .dt = MIPI_CSI2_DT_RAW12, .bpp = 12},
> > +	{ .fmt = MEDIA_BUS_FMT_UYVY12_2X12, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_VYUY12_2X12, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_YUYV12_2X12, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_YVYU12_2X12, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_Y14_1X14, .dt = MIPI_CSI2_DT_RAW14, .bpp = 14},
> > +	{ .fmt = MEDIA_BUS_FMT_Y16_1X16, .dt = MIPI_CSI2_DT_RAW16, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_UYVY8_1X16, .dt = MIPI_CSI2_DT_YUV422_8B, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_VYUY8_1X16, .dt = MIPI_CSI2_DT_YUV422_8B, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_YUYV8_1X16, .dt = MIPI_CSI2_DT_YUV422_8B, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_YVYU8_1X16, .dt = MIPI_CSI2_DT_YUV422_8B, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_YDYUYDYV8_1X16, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_UYVY10_1X20, .dt = MIPI_CSI2_DT_YUV422_10B, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_VYUY10_1X20, .dt = MIPI_CSI2_DT_YUV422_10B, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_YUYV10_1X20, .dt = MIPI_CSI2_DT_YUV422_10B, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_YVYU10_1X20, .dt = MIPI_CSI2_DT_YUV422_10B, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_VUY8_1X24, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_YUV8_1X24, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_UYYVYY8_0_5X24, .dt = MIPI_CSI2_DT_YUV420_8B, .bpp = 120},
> > +	{ .fmt = MEDIA_BUS_FMT_UYVY12_1X24, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_VYUY12_1X24, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_YUYV12_1X24, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_YVYU12_1X24, .bpp = 24},
> > +	{ .fmt = MEDIA_BUS_FMT_YUV10_1X30, .bpp = 30},
> > +	{ .fmt = MEDIA_BUS_FMT_UYYVYY10_0_5X30, .bpp = 150},
> > +	{ .fmt = MEDIA_BUS_FMT_AYUV8_1X32, .bpp = 32},
> > +	{ .fmt = MEDIA_BUS_FMT_UYYVYY12_0_5X36, .bpp = 180},
> > +	{ .fmt = MEDIA_BUS_FMT_YUV12_1X36, .bpp = 36},
> > +	{ .fmt = MEDIA_BUS_FMT_YUV16_1X48, .bpp = 48},
> > +	{ .fmt = MEDIA_BUS_FMT_UYYVYY16_0_5X48, .bpp = 240},
>
> That's quite many bits per pixel. Is the value correct (looks like bits per
> sample rather)? There are other, too, that seem quite high.


>
> > +
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR8_1X8, .dt = MIPI_CSI2_DT_RAW8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SGBRG8_1X8, .dt = MIPI_CSI2_DT_RAW8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SGRBG8_1X8, .dt = MIPI_CSI2_DT_RAW8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SRGGB8_1X8, .dt = MIPI_CSI2_DT_RAW8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR10_ALAW8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SGBRG10_ALAW8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SRGGB10_ALAW8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_BE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_LE, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR10_1X10, .dt = MIPI_CSI2_DT_RAW10, .bpp = 10},
> > +	{ .fmt = MEDIA_BUS_FMT_SGBRG10_1X10, .dt = MIPI_CSI2_DT_RAW10, .bpp = 10},
> > +	{ .fmt = MEDIA_BUS_FMT_SGRBG10_1X10, .dt = MIPI_CSI2_DT_RAW10, .bpp = 10},
> > +	{ .fmt = MEDIA_BUS_FMT_SRGGB10_1X10, .dt = MIPI_CSI2_DT_RAW10, .bpp = 10},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR12_1X12, .dt = MIPI_CSI2_DT_RAW12, .bpp = 12},
> > +	{ .fmt = MEDIA_BUS_FMT_SGBRG12_1X12, .dt = MIPI_CSI2_DT_RAW12, .bpp = 12},
> > +	{ .fmt = MEDIA_BUS_FMT_SGRBG12_1X12, .dt = MIPI_CSI2_DT_RAW12, .bpp = 12},
> > +	{ .fmt = MEDIA_BUS_FMT_SRGGB12_1X12, .dt = MIPI_CSI2_DT_RAW12, .bpp = 12},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR14_1X14, .dt = MIPI_CSI2_DT_RAW14, .bpp = 14},
> > +	{ .fmt = MEDIA_BUS_FMT_SGBRG14_1X14, .dt = MIPI_CSI2_DT_RAW14, .bpp = 14},
> > +	{ .fmt = MEDIA_BUS_FMT_SGRBG14_1X14, .dt = MIPI_CSI2_DT_RAW14, .bpp = 14},
> > +	{ .fmt = MEDIA_BUS_FMT_SRGGB14_1X14, .dt = MIPI_CSI2_DT_RAW14, .bpp = 14},
> > +	{ .fmt = MEDIA_BUS_FMT_SBGGR16_1X16, .dt = MIPI_CSI2_DT_RAW16, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_SGBRG16_1X16, .dt = MIPI_CSI2_DT_RAW16, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_SGRBG16_1X16, .dt = MIPI_CSI2_DT_RAW16, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_SRGGB16_1X16, .dt = MIPI_CSI2_DT_RAW16, .bpp = 16},
> > +
> > +	{ .fmt = MEDIA_BUS_FMT_JPEG_1X8, .bpp = 8},
> > +
> > +	{ .fmt = MEDIA_BUS_FMT_S5C_UYVY_JPEG_1X8, .bpp = 8},
> > +
> > +	{ .fmt = MEDIA_BUS_FMT_AHSV8888_1X32, .bpp = 8},
> > +
> > +	{ .fmt = MEDIA_BUS_FMT_META_8, .bpp = 8},
> > +	{ .fmt = MEDIA_BUS_FMT_META_10, .bpp = 10},
> > +	{ .fmt = MEDIA_BUS_FMT_META_12, .bpp = 12},
> > +	{ .fmt = MEDIA_BUS_FMT_META_14, .bpp = 14},
> > +	{ .fmt = MEDIA_BUS_FMT_META_16, .bpp = 16},
> > +	{ .fmt = MEDIA_BUS_FMT_META_20, .bpp = 20},
> > +	{ .fmt = MEDIA_BUS_FMT_META_24, .bpp = 24},
> > +};
> > +
> > +const struct media_bus_fmt_info *media_bus_fmt_info_get(u32 bus_fmt)
> > +{
> > +	int i;
>
> unsigned int, please. You can also declare it within the loop.
>
> > +
> > +	for (i = 0; i < ARRAY_SIZE(media_bus_fmt_info); i++)
> > +		if (media_bus_fmt_info[i].fmt == bus_fmt)
> > +			return &media_bus_fmt_info[i];
> > +
> > +	return NULL;
> > +}
> > +EXPORT_SYMBOL_GPL(media_bus_fmt_info_get);
> > diff --git a/include/media/mipi-csi2.h b/include/media/mipi-csi2.h
> > index 40fc0264250d779ab5dfa7d2fe16e6f1382c07d4..3227d28224b7c32ef2745548391da9e792cfa559 100644
> > --- a/include/media/mipi-csi2.h
> > +++ b/include/media/mipi-csi2.h
> > @@ -8,6 +8,8 @@
> >  #ifndef _MEDIA_MIPI_CSI2_H
> >  #define _MEDIA_MIPI_CSI2_H
> >
> > +/* DT value ref to MIPI Camera Serial Interface 2 Spec Ver4.1 section 9.4 */
>
> I'm not sure if I'd add such a reference here. At least it shouldn't be in
> this patch.

Still not in v6.18-rc3. I add comments in this patch because try to add
media_bus_fmt_to_csi2_dt().

If dt define is not standard, media_bus_fmt_to_csi2_dt() don't make sense.
the difference vendor choose difference dt values.

I am fine create patch for it before this one.

Frank
>
> > +
> >  /* Short packet data types */
> >  #define MIPI_CSI2_DT_FS			0x00
> >  #define MIPI_CSI2_DT_FE			0x01
> > @@ -44,4 +46,32 @@
> >  #define MIPI_CSI2_DT_RAW20		0x2f
> >  #define MIPI_CSI2_DT_USER_DEFINED(n)	(0x30 + (n))	/* 0..7 */
> >
> > +/**
> > + * struct media_bus_fmt_info - information about a media bus format
> > + * @fmt: media bus format identifier (MEDIA_BUS_FMT_*)
> > + * @dt: data type define in MIPI spec (MIPI_CSI2_DT *)
> > + * @bpp: bit width per pixel
> > + */
>
> I wonder if we should keep this out of sight from drivers. That'd mean
> moving the functions below to the .c file, too.
>
> > +struct media_bus_fmt_info {
> > +	u32 fmt;
> > +	u32 dt;
>
> dt can be u8, too.
>
> > +	u8 bpp;
> > +};
> > +
> > +const struct media_bus_fmt_info *media_bus_fmt_info_get(u32 bus_fmt);
> > +
> > +static inline int media_bus_fmt_to_csi2_dt(int bus_fmt)
>
> u32
>
> > +{
> > +	const struct media_bus_fmt_info *info = media_bus_fmt_info_get(bus_fmt);
> > +
> > +	return info ? info->dt : 0;
> > +}
> > +
> > +static inline int media_bus_fmt_to_csi2_bpp(int bus_fmt)
>
> u32
>
> > +{
> > +	const struct media_bus_fmt_info *info = media_bus_fmt_info_get(bus_fmt);
> > +
> > +	return info ? info->bpp : 0;
> > +}
> > +
> >  #endif /* _MEDIA_MIPI_CSI2_H */
> >
>
> --
> Kind regards,
>
> Sakari Ailus
>
> --
> linux-phy mailing list
> linux-phy@...ts.infradead.org
> https://lists.infradead.org/mailman/listinfo/linux-phy

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