media: rcar-vin: Extend RAW8 support to all RGB layouts

Extend the list of supported formats to include all RGB layouts of RAW8.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/rcar-vin/rcar-dma.c

@@ -599,8 +599,16 @@ void rvin_crop_scale_comp(struct rvin_dev *vin)
 	/* For RAW8 format bpp is 1, but the hardware process RAW8
 	 * format in 2 pixel unit hence configure VNIS_REG as stride / 2.
 	 */
-	if (vin->format.pixelformat == V4L2_PIX_FMT_SRGGB8)
+	switch (vin->format.pixelformat) {
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
+	case MEDIA_BUS_FMT_SRGGB8_1X8:
 		stride /= 2;
+		break;
+	default:
+		break;
+	}
 
 	rvin_write(vin, stride, VNIS_REG);
 }
@@ -684,6 +692,9 @@ static int rvin_setup(struct rvin_dev *vin)
 
 		input_is_yuv = true;
 		break;
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
 	case MEDIA_BUS_FMT_SRGGB8_1X8:
 		vnmc |= VNMC_INF_RAW8;
 		break;
@@ -758,6 +769,9 @@ static int rvin_setup(struct rvin_dev *vin)
 	case V4L2_PIX_FMT_ABGR32:
 		dmr = VNDMR_A8BIT(vin->alpha) | VNDMR_EXRGB | VNDMR_DTMD_ARGB;
 		break;
+	case V4L2_PIX_FMT_SBGGR8:
+	case V4L2_PIX_FMT_SGBRG8:
+	case V4L2_PIX_FMT_SGRBG8:
 	case V4L2_PIX_FMT_SRGGB8:
 		dmr = 0;
 		break;
@@ -1135,6 +1149,18 @@ static int rvin_mc_validate_format(struct rvin_dev *vin, struct v4l2_subdev *sd,
 	case MEDIA_BUS_FMT_UYVY10_2X10:
 	case MEDIA_BUS_FMT_RGB888_1X24:
 		break;
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+		if (vin->format.pixelformat != V4L2_PIX_FMT_SBGGR8)
+			return -EPIPE;
+		break;
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+		if (vin->format.pixelformat != V4L2_PIX_FMT_SGBRG8)
+			return -EPIPE;
+		break;
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
+		if (vin->format.pixelformat != V4L2_PIX_FMT_SGRBG8)
+			return -EPIPE;
+		break;
 	case MEDIA_BUS_FMT_SRGGB8_1X8:
 		if (vin->format.pixelformat != V4L2_PIX_FMT_SRGGB8)
 			return -EPIPE;

drivers/media/platform/rcar-vin/rcar-v4l2.c

@@ -66,6 +66,18 @@ static const struct rvin_video_format rvin_formats[] = {
 		.fourcc			= V4L2_PIX_FMT_ABGR32,
 		.bpp			= 4,
 	},
+	{
+		.fourcc			= V4L2_PIX_FMT_SBGGR8,
+		.bpp			= 1,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_SGBRG8,
+		.bpp			= 1,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_SGRBG8,
+		.bpp			= 1,
+	},
 	{
 		.fourcc			= V4L2_PIX_FMT_SRGGB8,
 		.bpp			= 1,
@@ -366,6 +378,21 @@ static int rvin_enum_fmt_vid_cap(struct file *file, void *priv,
 	case MEDIA_BUS_FMT_UYVY10_2X10:
 	case MEDIA_BUS_FMT_RGB888_1X24:
 		break;
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+		if (f->index)
+			return -EINVAL;
+		f->pixelformat = V4L2_PIX_FMT_SBGGR8;
+		return 0;
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+		if (f->index)
+			return -EINVAL;
+		f->pixelformat = V4L2_PIX_FMT_SGBRG8;
+		return 0;
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
+		if (f->index)
+			return -EINVAL;
+		f->pixelformat = V4L2_PIX_FMT_SGRBG8;
+		return 0;
 	case MEDIA_BUS_FMT_SRGGB8_1X8:
 		if (f->index)
 			return -EINVAL;