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authorGrant Likely <grant.likely@secretlab.ca>2010-06-08 07:48:17 -0600
committerGrant Likely <grant.likely@secretlab.ca>2010-07-05 16:14:51 -0600
commit8cec0e7b4c7c0b76f2b5285f250211ad81c3eafd (patch)
tree84d3988600e37906d8e9972ad8ae31a0ea4684cf /include
parent2e13cba8dc35774bf1d7169733e876c5b7adee54 (diff)
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of/device: Add OF style matching helper function
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
Diffstat (limited to 'include')
-rw-r--r--include/linux/of_device.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 238e92e..91d75fb 100644
--- 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 */