media: am437x-vpfe: Remove per bus width static data

The bus related static data included in the vpfe_fmt
static table can be derived dynamically instead.
This simplify the table and it's use.

We instead replace the per bus data info with just
the usual bit per pixel value for each supported
pixel format.
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/am437x/am437x-vpfe.c

@@ -73,73 +73,43 @@ static struct vpfe_fmt formats[VPFE_NUM_FORMATS] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_YUYV,
 		.code		= MEDIA_BUS_FMT_YUYV8_2X8,
-		.l.width	= 10,
-		.l.bpp		= 4,
-		.s.width	= 8,
-		.s.bpp		= 2,
+		.bitsperpixel	= 16,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_UYVY,
 		.code		= MEDIA_BUS_FMT_UYVY8_2X8,
-		.l.width	= 10,
-		.l.bpp		= 4,
-		.s.width	= 8,
-		.s.bpp		= 2,
+		.bitsperpixel	= 16,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_YVYU,
 		.code		= MEDIA_BUS_FMT_YVYU8_2X8,
-		.l.width	= 10,
-		.l.bpp		= 4,
-		.s.width	= 8,
-		.s.bpp		= 2,
+		.bitsperpixel	= 16,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_VYUY,
 		.code		= MEDIA_BUS_FMT_VYUY8_2X8,
-		.l.width	= 10,
-		.l.bpp		= 4,
-		.s.width	= 8,
-		.s.bpp		= 2,
+		.bitsperpixel	= 16,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_SBGGR8,
 		.code		= MEDIA_BUS_FMT_SBGGR8_1X8,
-		.l.width	= 10,
-		.l.bpp		= 2,
-		.s.width	= 8,
-		.s.bpp		= 1,
+		.bitsperpixel	= 8,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_SGBRG8,
 		.code		= MEDIA_BUS_FMT_SGBRG8_1X8,
-		.l.width	= 10,
-		.l.bpp		= 2,
-		.s.width	= 8,
-		.s.bpp		= 1,
+		.bitsperpixel	= 8,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_SGRBG8,
 		.code		= MEDIA_BUS_FMT_SGRBG8_1X8,
-		.l.width	= 10,
-		.l.bpp		= 2,
-		.s.width	= 8,
-		.s.bpp		= 1,
+		.bitsperpixel	= 8,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_SRGGB8,
 		.code		= MEDIA_BUS_FMT_SRGGB8_1X8,
-		.l.width	= 10,
-		.l.bpp		= 2,
-		.s.width	= 8,
-		.s.bpp		= 1,
+		.bitsperpixel	= 8,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_RGB565,
 		.code		= MEDIA_BUS_FMT_RGB565_2X8_LE,
-		.l.width	= 10,
-		.l.bpp		= 4,
-		.s.width	= 8,
-		.s.bpp		= 2,
+		.bitsperpixel	= 16,
 	}, {
 		.fourcc		= V4L2_PIX_FMT_RGB565X,
 		.code		= MEDIA_BUS_FMT_RGB565_2X8_BE,
-		.l.width	= 10,
-		.l.bpp		= 4,
-		.s.width	= 8,
-		.s.bpp		= 2,
+		.bitsperpixel	= 16,
 	},
 };
 
@@ -184,9 +154,11 @@ static unsigned int __get_bytesperpixel(struct vpfe_device *vpfe,
 {
 	struct vpfe_subdev_info *sdinfo = vpfe->current_subdev;
 	unsigned int bus_width = sdinfo->vpfe_param.bus_width;
-	u32 bpp;
+	u32 bpp, bus_width_bytes, clocksperpixel;
 
-	bpp = (bus_width == 10) ? fmt->l.bpp : fmt->s.bpp;
+	bus_width_bytes = ALIGN(bus_width, 8) >> 3;
+	clocksperpixel = DIV_ROUND_UP(fmt->bitsperpixel, bus_width);
+	bpp = clocksperpixel * bus_width_bytes;
 
 	return bpp;
 }

drivers/media/platform/am437x/am437x-vpfe.h

@@ -215,28 +215,16 @@ struct vpfe_ccdc {
 	u32 ccdc_ctx[VPFE_REG_END / sizeof(u32)];
 };
 
-/*
- * struct bus_format - VPFE bus format information
- * width: Bits per pixel (when transferred over a bus)
- * bpp: Bytes per pixel (when stored in memory)
- */
-struct bus_format {
-	unsigned int width;
-	unsigned int bpp;
-};
-
 /*
  * struct vpfe_fmt - VPFE media bus format information
  * fourcc: V4L2 pixel format code
  * code: V4L2 media bus format code
- * l: 10 bit bus format info
- * s: 8 bit bus format info
+ * bitsperpixel: Bits per pixel over the bus
  */
 struct vpfe_fmt {
 	u32 fourcc;
 	u32 code;
-	struct bus_format l;
-	struct bus_format s;
+	u32 bitsperpixel;
 };
 
 /*