of/device: Add OF style matching helper function

[deliverable/linux.git] / include / linux / of_device.h

diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 238e92e007e64a1972717c6314e53d52ccfe9b28..91d75fb0c726e25d6b6ca3b1fc9e46a085978389 100644 (file)
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -30,6 +30,17 @@
 extern const struct of_device_id *of_match_device(
        const struct of_device_id *matches, const struct device *dev);
 
+/**
+ * of_driver_match_device - Tell if a driver's of_match_table matches a device.
+ * @drv: the device_driver structure to test
+ * @dev: the device structure to match against
+ */
+static inline int of_driver_match_device(const struct device *dev,
+                                        const struct device_driver *drv)
+{
+       return of_match_device(drv->of_match_table, dev) != NULL;
+}
+
 extern struct of_device *of_dev_get(struct of_device *dev);
 extern void of_dev_put(struct of_device *dev);
 
@@ -48,6 +59,14 @@ extern ssize_t of_device_get_modalias(struct device *dev,
 extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
 
 
+#else /* CONFIG_OF_DEVICE */
+
+static inline int of_driver_match_device(struct device *dev,
+                                        struct device_driver *drv)
+{
+       return 0;
+}
+
 #endif /* CONFIG_OF_DEVICE */
 
 #endif /* _LINUX_OF_DEVICE_H */