The R-Car CSI-2 receiver supports multiplexed streams.
The VIN driver inspects the CSI-2 subdevice format with the intent of
validating formats at stream start time.
Each VIN instance is connected to a CSI-2 receiver which exposes a
single stream and since it has acquired support for multiplexed streams
maintains the format information in its v4l2_subdev_state per-stream.
Instrument the VIN driver to fetch the CSI-2 receiver format from the
streams configuration by setting the stream identifier to 0 and pass to
the subdevice its own state where to retrieve format information from.
Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
drivers/media/platform/rcar-vin/rcar-dma.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c
index 83b2f923cf98..a6f3701f3f3f 100644
--- a/drivers/media/platform/rcar-vin/rcar-dma.c
+++ b/drivers/media/platform/rcar-vin/rcar-dma.c
@@ -1119,7 +1119,8 @@ static int rvin_mc_validate_format(struct rvin_dev *vin, struct v4l2_subdev *sd,
};
fmt.pad = pad->index;
- if (v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt))
+ fmt.stream = 0;
+ if (v4l2_subdev_call(sd, pad, get_fmt, sd->state, &fmt))
return -EPIPE;
switch (fmt.format.code) {
--
2.32.0
