V4L/DVB (11673): v4l2-device: unregister i2c_clients when unregistering the v4l2_device.

Until now I relied on i2c_del_adapter to unregister the i2c_clients for
me, however, if the i2c bus is a platform bus then it is never deleted.

So instead I need to unregister i2c clients when unregistering the
v4l2_device.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 17856081c809..a503e1cee78b 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -230,12 +230,16 @@ struct v4l2_subdev_ops {
 
 #define V4L2_SUBDEV_NAME_SIZE 32
 
+/* Set this flag if this subdev is a i2c device. */
+#define V4L2_SUBDEV_FL_IS_I2C (1U << 0)
+
 /* Each instance of a subdev driver should create this struct, either
    stand-alone or embedded in a larger struct.
  */
 struct v4l2_subdev {
         struct list_head list;
         struct module *owner;
+        u32 flags;
         struct v4l2_device *v4l2_dev;
         const struct v4l2_subdev_ops *ops;
         /* name must be unique */
@@ -264,6 +268,7 @@ static inline void v4l2_subdev_init(struct v4l2_subdev *sd,
         BUG_ON(!ops || !ops->core);
         sd->ops = ops;
         sd->v4l2_dev = NULL;
+        sd->flags = 0;
         sd->name[0] = '\0';
         sd->grp_id = 0;
         sd->priv = NULL;