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[media] media: rcar-vin: allow field to be changed

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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>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Niklas Söderlund 2016-09-02 13:44:58 -03:00 committed by Mauro Carvalho Chehab
parent 7e13a8a45e
commit 52a1b4e935
1 changed files with 9 additions and 0 deletions
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9
drivers/media/platform/rcar-vin/rcar-v4l2.c
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@ -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);
@ -114,12 +115,16 @@ static int __rvin_try_format_source(struct rvin_dev *vin,
format.pad = vin->src_pad_idx;
field = pix->field;
ret = v4l2_subdev_call(sd, pad, set_fmt, pad_cfg, &format);
if (ret < 0 && ret != -ENOIOCTLCMD)
goto done;
v4l2_fill_pix_format(pix, &format.format);
pix->field = field;
source->width = pix->width;
source->height = pix->height;
@ -143,6 +148,10 @@ 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.