@@ -3328,3 +3328,9 @@ void device_set_of_node_from_dev(struct device *dev, const struct device *dev2)
dev->of_node_reused = true;
}
EXPORT_SYMBOL_GPL(device_set_of_node_from_dev);
+
+int device_match_of_node(struct device *dev, void *np)
+{
+ return dev->of_node == np;
+}
+EXPORT_SYMBOL_GPL(device_match_of_node);
@@ -163,6 +163,8 @@ void subsys_dev_iter_init(struct subsys_dev_iter *iter,
struct device *subsys_dev_iter_next(struct subsys_dev_iter *iter);
void subsys_dev_iter_exit(struct subsys_dev_iter *iter);
+int device_match_of_node(struct device *dev, void *np);
+
int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data,
int (*fn)(struct device *dev, void *data));
struct device *bus_find_device(struct bus_type *bus, struct device *start,
@@ -171,6 +173,21 @@ struct device *bus_find_device(struct bus_type *bus, struct device *start,
struct device *bus_find_device_by_name(struct bus_type *bus,
struct device *start,
const char *name);
+
+/**
+ * bus_find_device_by_of_node : device iterator for locating a particular device
+ * matching the of_node.
+ * @bus: bus type
+ * @start: Device to begin with
+ * @np: of_node of the device to match.
+ */
+static inline struct device *bus_find_device_by_of_node(struct bus_type *bus,
+ struct device *start,
+ struct device_node *np)
+{
+ return bus_find_device(bus, start, np, device_match_of_node);
+}
+
struct device *subsys_find_device_by_id(struct bus_type *bus, unsigned int id,
struct device *hint);
int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
Instead of spilling the match function to check the of_node for a given value, lets add a common helper. Also add a wrapper to find device by of_node pointer for bus. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Joe Perches <joe@perches.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- drivers/base/core.c | 6 ++++++ include/linux/device.h | 17 +++++++++++++++++ 2 files changed, 23 insertions(+) -- 2.7.4