Add of_driver_match_device() helper function. This function can be used
by bus types to determine if a driver works with a device when using OF
style matching. If CONFIG_OF is unselected, then it is a nop.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: Michal Simek <monstr@monstr.eu>
CC: Grant Likely <grant.likely@secretlab.ca>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
CC: linux-kernel@vger.kernel.org
CC: microblaze-uclinux@itee.uq.edu.au
CC: linuxppc-dev@ozlabs.org
CC: devicetree-discuss@lists.ozlabs.org
const struct of_device_id *of_match_device(const struct of_device_id *matches,
const struct device *dev)
{
const struct of_device_id *of_match_device(const struct of_device_id *matches,
const struct device *dev)
{
+ if ((!matches) || (!dev->of_node))
return NULL;
return of_match_node(matches, dev->of_node);
}
return NULL;
return of_match_node(matches, dev->of_node);
}
extern const struct of_device_id *of_match_device(
const struct of_device_id *matches, const struct device *dev);
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);
extern struct of_device *of_dev_get(struct of_device *dev);
extern void of_dev_put(struct of_device *dev);
extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
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 */
#endif /* CONFIG_OF_DEVICE */
#endif /* _LINUX_OF_DEVICE_H */