The driver forced whatever field was set by the source subdevice to be
used. This patch allows the user to change from the default field.
Signed-off-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
---
drivers/media/platform/rcar-vin/rcar-v4l2.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c
b/drivers/media/platform/rcar-vin/rcar-v4l2.c
index 10a5c10..6d4086a 100644
--- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
+++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
@@ -102,6 +102,7 @@ static int __rvin_try_format_source(struct rvin_dev *vin,
struct v4l2_subdev_format format = {
.which = which,
};
+ enum v4l2_field field;
int ret;
sd = vin_to_source(vin);
@@ -114,6 +115,8 @@ static int __rvin_try_format_source(struct rvin_dev *vin,
format.pad = vin->src_pad_idx;
+ field = pix->field;
+
ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, pad, set_fmt,
pad_cfg, &format);
if (ret < 0)
@@ -121,6 +124,8 @@ static int __rvin_try_format_source(struct rvin_dev *vin,
v4l2_fill_pix_format(pix, &format.format);
+ pix->field = field;
+
source->width = pix->width;
source->height = pix->height;
@@ -144,6 +149,10 @@ static int __rvin_try_format(struct rvin_dev *vin,
rwidth = pix->width;
rheight = pix->height;
+ /* Keep current field if no specific one is asked for */
+ if (pix->field == V4L2_FIELD_ANY)
+ pix->field = vin->format.field;
+
/*
* Retrieve format information and select the current format if the
* requested format isn't supported.
--
2.9.0
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