[media] V4L: Add V4L2_ASYNC_MATCH_OF subdev matching type
Add support for matching by device_node pointer. This allows
the notifier user to simply pass a list of device_node pointers
corresponding to sub-devices.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index 33e3b2a..82b2981 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -15,6 +15,7 @@
#include <linux/mutex.h>
struct device;
+struct device_node;
struct v4l2_device;
struct v4l2_subdev;
struct v4l2_async_notifier;
@@ -26,6 +27,7 @@
V4L2_ASYNC_MATCH_CUSTOM,
V4L2_ASYNC_MATCH_DEVNAME,
V4L2_ASYNC_MATCH_I2C,
+ V4L2_ASYNC_MATCH_OF,
};
/**
@@ -39,6 +41,9 @@
enum v4l2_async_match_type match_type;
union {
struct {
+ const struct device_node *node;
+ } of;
+ struct {
const char *name;
} device_name;
struct {