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media: adv7180: add g_frame_interval support

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Implement g_frame_interval to return the current standard's frame
interval.

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+samsung@kernel.org>
This commit is contained in:
Niklas Söderlund 2018-07-26 06:27:16 -04:00 committed by Mauro Carvalho Chehab
parent 6457b6263f
commit 38566d28ea
1 changed files with 17 additions and 0 deletions
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17
drivers/media/i2c/adv7180.c
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@ -461,6 +461,22 @@ static int adv7180_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
return 0;
}
static int adv7180_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct adv7180_state *state = to_state(sd);
if (state->curr_norm & V4L2_STD_525_60) {
fi->interval.numerator = 1001;
fi->interval.denominator = 30000;
} else {
fi->interval.numerator = 1;
fi->interval.denominator = 25;
}
return 0;
}
static void adv7180_set_power_pin(struct adv7180_state *state, bool on)
{
if (!state->pwdn_gpio)
@ -820,6 +836,7 @@ static int adv7180_subscribe_event(struct v4l2_subdev *sd,
static const struct v4l2_subdev_video_ops adv7180_video_ops = {
.s_std = adv7180_s_std,
.g_std = adv7180_g_std,
.g_frame_interval = adv7180_g_frame_interval,
.querystd = adv7180_querystd,
.g_input_status = adv7180_g_input_status,
.s_routing = adv7180_s_routing,