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[media] V4L: Add V4L2_ASYNC_MATCH_OF subdev matching type

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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 <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Acked-by: Lad, Prabhakar <[email protected]>
Acked-by: Laurent Pinchart <[email protected]>
Acked-by: Hans Verkuil <[email protected]>
Acked-by: Guennadi Liakhovetski <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Sylwester Nawrocki 2013-07-19 12:21:29 -03:00 • committed by Mauro Carvalho Chehab
commit e7359f8e66
2 changed files with 14 additions and 0 deletions
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5
include/media/v4l2-async.h
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@ -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 @@ enum v4l2_async_match_type {
V4L2_ASYNC_MATCH_CUSTOM,
V4L2_ASYNC_MATCH_DEVNAME,
V4L2_ASYNC_MATCH_I2C,
V4L2_ASYNC_MATCH_OF,
};
/**
@ -38,6 +40,9 @@ enum v4l2_async_match_type {
struct v4l2_async_subdev {
enum v4l2_async_match_type match_type;
union {
struct {
const struct device_node *node;
} of;
struct {
const char *name;
} device_name;