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media: tvp5150: add querystd

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Add the querystd video_op and make it return V4L2_STD_UNKNOWN while the
TVP5150 is not locked to a signal.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Philipp Zabel 2018-06-28 12:20:48 -04:00 committed by Mauro Carvalho Chehab
parent 0db87cc7ff
commit ee9a6ff6a6
1 changed files with 10 additions and 0 deletions
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10
drivers/media/i2c/tvp5150.c
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@ -810,6 +810,15 @@ static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
}
}
static int tvp5150_querystd(struct v4l2_subdev *sd, v4l2_std_id *std_id)
{
struct tvp5150 *decoder = to_tvp5150(sd);
*std_id = decoder->lock ? tvp5150_read_std(sd) : V4L2_STD_UNKNOWN;
return 0;
}
static const struct v4l2_event tvp5150_ev_fmt = {
.type = V4L2_EVENT_SOURCE_CHANGE,
.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
@ -1385,6 +1394,7 @@ static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
.s_std = tvp5150_s_std,
.g_std = tvp5150_g_std,
.querystd = tvp5150_querystd,
.s_stream = tvp5150_s_stream,
.s_routing = tvp5150_s_routing,
.g_mbus_config = tvp5150_g_mbus_config,