[PATCH 1/6] media: rcar-vin: allow field to be changed

["Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>]

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+renesas@ragnatech.se>
---
 drivers/media/platform/rcar-vin/rcar-v4l2.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
index 10a5c10..346339f 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;
 
-- 
2.9.0