V4L/DVB: v4l: Add a v4l2_subdev host private data field
The existing priv field stores subdev private data owned by the subdev
driver. Host (bridge) drivers might need to store per-subdev
host-specific data, such as a pointer to platform data.
Add a v4l2_subdev host_priv field to store host-specific data, and
rename the existing priv field to dev_priv.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 905879d..b0316a7 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -438,17 +438,28 @@
/* can be used to group similar subdevs, value is driver-specific */
u32 grp_id;
/* pointer to private data */
- void *priv;
+ void *dev_priv;
+ void *host_priv;
};
static inline void v4l2_set_subdevdata(struct v4l2_subdev *sd, void *p)
{
- sd->priv = p;
+ sd->dev_priv = p;
}
static inline void *v4l2_get_subdevdata(const struct v4l2_subdev *sd)
{
- return sd->priv;
+ return sd->dev_priv;
+}
+
+static inline void v4l2_set_subdev_hostdata(struct v4l2_subdev *sd, void *p)
+{
+ sd->host_priv = p;
+}
+
+static inline void *v4l2_get_subdev_hostdata(const struct v4l2_subdev *sd)
+{
+ return sd->host_priv;
}
static inline void v4l2_subdev_init(struct v4l2_subdev *sd,
@@ -462,7 +473,8 @@
sd->flags = 0;
sd->name[0] = '\0';
sd->grp_id = 0;
- sd->priv = NULL;
+ sd->dev_priv = NULL;
+ sd->host_priv = NULL;
}
/* Call an ops of a v4l2_subdev, doing the right checks against