[PATCH 03/18] media: rcar-vin: Fix RAW10

From: Tomi Valkeinen
Date: Wed Feb 19 2025 - 08:51:27 EST


Fix the following to get RAW10 formats working:

In rvin_formats, the bpp is set to 4 for RAW10. As VIN unpacks RAW10 to
16-bit containers, the bpp should be 2.

Don't set VNDMR_YC_THR to the VNDMR register. The YC_THR is "YC Data
Through Mode", used for YUV formats and should not be set for RAW10.

Fix the check related to the RGB666 format and CSI-2 mode. The
VNMC_INF_RGB666 define is the same as used for RAW10 on Gen4, and RAW10
is allowed on CSI-2 (whereas RGB666 is not allowed on Gen3 on CSI-2).
This feels a bit hacky, though, and the formats should really have been
verified already earlier.

Fixes: 1b7e7240eaf3 ("media: rcar-vin: Add support for RAW10")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx>
---
drivers/media/platform/renesas/rcar-vin/rcar-dma.c | 9 +++++++--
drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c | 8 ++++----
2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
index bbdff7aed9e2..00629acc6404 100644
--- a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
@@ -829,12 +829,17 @@ static int rvin_setup(struct rvin_dev *vin)
case VNMC_INF_YUV8_BT656:
case VNMC_INF_YUV10_BT656:
case VNMC_INF_YUV16:
- case VNMC_INF_RGB666:
if (!rvin_remote_is_parallel(vin)) {
vin_err(vin, "Invalid setting in MIPI CSI2\n");
return -EINVAL;
}
break;
+ case VNMC_INF_RGB666:
+ if (vin->info->model == RCAR_GEN3 && !rvin_remote_is_parallel(vin)) {
+ vin_err(vin, "Invalid setting in MIPI CSI2\n");
+ return -EINVAL;
+ }
+ break;
case VNMC_INF_RAW8:
if (rvin_remote_is_parallel(vin)) {
vin_err(vin, "Invalid setting in Digital Pins\n");
@@ -931,7 +936,7 @@ static int rvin_setup(struct rvin_dev *vin)
case V4L2_PIX_FMT_SGBRG10:
case V4L2_PIX_FMT_SGRBG10:
case V4L2_PIX_FMT_SRGGB10:
- dmr = VNDMR_RMODE_RAW10 | VNDMR_YC_THR;
+ dmr = VNDMR_RMODE_RAW10;
break;
default:
vin_err(vin, "Invalid pixelformat (0x%x)\n",
diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c b/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c
index a1b74be33ab2..591f1a4d3595 100644
--- a/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c
@@ -88,19 +88,19 @@ static const struct rvin_video_format rvin_formats[] = {
},
{
.fourcc = V4L2_PIX_FMT_SBGGR10,
- .bpp = 4,
+ .bpp = 2,
},
{
.fourcc = V4L2_PIX_FMT_SGBRG10,
- .bpp = 4,
+ .bpp = 2,
},
{
.fourcc = V4L2_PIX_FMT_SGRBG10,
- .bpp = 4,
+ .bpp = 2,
},
{
.fourcc = V4L2_PIX_FMT_SRGGB10,
- .bpp = 4,
+ .bpp = 2,
},
};


--
2.43.0