media: imx477: Add support for 8 bit readout

8 bit readout is only a reconfiguration of the CSI2 block,
and recomputation of horizontal blanking. Enable it.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

Author: 6by9

drivers/media/i2c/imx477.c

@@ -970,6 +970,11 @@ static const u32 codes[] = {
 	MEDIA_BUS_FMT_SGRBG10_1X10,
 	MEDIA_BUS_FMT_SGBRG10_1X10,
 	MEDIA_BUS_FMT_SBGGR10_1X10,
+	/* 8-bit modes. */
+	MEDIA_BUS_FMT_SRGGB8_1X8,
+	MEDIA_BUS_FMT_SGRBG8_1X8,
+	MEDIA_BUS_FMT_SGBRG8_1X8,
+	MEDIA_BUS_FMT_SBGGR8_1X8,
 };
 
 static const char * const imx477_test_pattern_menu[] = {
@@ -1112,6 +1117,12 @@ static int imx477_get_bpp(unsigned int code)
 	case MEDIA_BUS_FMT_SGBRG10_1X10:
 	case MEDIA_BUS_FMT_SBGGR10_1X10:
 		return 10;
+
+	case MEDIA_BUS_FMT_SRGGB8_1X8:
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+		return 8;
 	}
 }