From 14a6fca77ad122208a6db10e2abda2d7369c48a4 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Date: Tue, 12 Apr 2022 10:42:48 +0100 Subject: media: subdev: add v4l2_subdev_get_fmt() helper function Add v4l2_subdev_get_fmt() helper function which implements v4l2_subdev_pad_ops.get_fmt using active state. Subdev drivers that support active state and do not need to do anything special in their get_fmt op can use this helper directly for v4l2_subdev_pad_ops.get_fmt. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> --- drivers/media/v4l2-core/v4l2-subdev.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers/media/v4l2-core') diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index afe916366dfe..3da200bb23dd 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -1041,6 +1041,28 @@ void v4l2_subdev_cleanup(struct v4l2_subdev *sd) } EXPORT_SYMBOL_GPL(v4l2_subdev_cleanup); +#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) + +int v4l2_subdev_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *fmt; + + if (format->pad >= sd->entity.num_pads) + return -EINVAL; + + fmt = v4l2_subdev_get_pad_format(sd, state, format->pad); + if (!fmt) + return -EINVAL; + + format->format = *fmt; + + return 0; +} +EXPORT_SYMBOL_GPL(v4l2_subdev_get_fmt); + +#endif /* CONFIG_VIDEO_V4L2_SUBDEV_API */ + #endif /* CONFIG_MEDIA_CONTROLLER */ void v4l2_subdev_init(struct v4l2_subdev *sd, const struct v4l2_subdev_ops *ops) -- cgit v1.2.3