of/device: Make of_device_make_bus_id() usable by other code.

[mv-sheeva.git] / include / linux / of_device.h

diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 11651facc5f179237500ea4d43e3bcc76bfe270d..35aa44ad9f2cb21b7ce2422dfbae2fc296aba7cc 100644 (file)
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -1,32 +1,77 @@
 #ifndef _LINUX_OF_DEVICE_H
 #define _LINUX_OF_DEVICE_H
 
+/*
+ * The of_device *was* a kind of "base class" that was a superset of
+ * struct device for use by devices attached to an OF node and probed
+ * using OF properties.  However, the important bit of OF-style
+ * probing, namely the device node pointer, has been moved into the
+ * common struct device when CONFIG_OF is set to make OF-style probing
+ * available to all bus types.  So now, just make of_device and
+ * platform_device equivalent so that current of_platform bus users
+ * can be transparently migrated over to using the platform bus.
+ *
+ * This line will go away once all references to of_device are removed
+ * from the kernel.
+ */
+#define of_device platform_device
+#include <linux/platform_device.h>
+#include <linux/of_platform.h> /* temporary until merge */
+
 #ifdef CONFIG_OF_DEVICE
 #include <linux/device.h>
 #include <linux/of.h>
 #include <linux/mod_devicetable.h>
 
-#include <asm/of_device.h>
-
 #define        to_of_device(d) container_of(d, struct of_device, dev)
 
 extern const struct of_device_id *of_match_device(
        const struct of_device_id *matches, const struct device *dev);
+extern void of_device_make_bus_id(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 platform_device *of_dev_get(struct platform_device *dev);
+extern void of_dev_put(struct platform_device *dev);
 
-extern int of_device_register(struct of_device *ofdev);
-extern void of_device_unregister(struct of_device *ofdev);
+extern int of_device_register(struct platform_device *ofdev);
+extern void of_device_unregister(struct platform_device *ofdev);
 extern void of_release_dev(struct device *dev);
 
-static inline void of_device_free(struct of_device *dev)
+static inline void of_device_free(struct platform_device *dev)
 {
        of_release_dev(&dev->dev);
 }
 
-extern ssize_t of_device_get_modalias(struct of_device *ofdev,
+extern ssize_t of_device_get_modalias(struct device *dev,
                                        char *str, ssize_t len);
+
+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;
+}
+
+static inline int of_device_uevent(struct device *dev,
+                                  struct kobj_uevent_env *env)
+{
+       return -ENODEV;
+}
+
 #endif /* CONFIG_OF_DEVICE */
 
 #endif /* _LINUX_OF_DEVICE_H */