eca3930163
of_platform_bus was being used in the same manner as the platform_bus. The only difference being that of_platform_bus devices are generated from data in the device tree, and platform_bus devices are usually statically allocated in platform code. Having them separate causes the problem of device drivers having to be registered twice if it was possible for the same device to appear on either bus. This patch removes of_platform_bus_type and registers all of_platform bus devices and drivers on the platform bus instead. A previous patch made the of_device structure an alias for the platform_device structure, and a shim is used to adapt of_platform_drivers to the platform bus. After all of of_platform_bus drivers are converted to be normal platform drivers, the shim code can be removed. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net>
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
#ifndef _LINUX_OF_DEVICE_H
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#define _LINUX_OF_DEVICE_H
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/*
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* The of_device *was* a kind of "base class" that was a superset of
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* struct device for use by devices attached to an OF node and probed
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* using OF properties. However, the important bit of OF-style
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* probing, namely the device node pointer, has been moved into the
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* common struct device when CONFIG_OF is set to make OF-style probing
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* available to all bus types. So now, just make of_device and
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* platform_device equivalent so that current of_platform bus users
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* can be transparently migrated over to using the platform bus.
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*
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* This line will go away once all references to of_device are removed
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* from the kernel.
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*/
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#define of_device platform_device
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#include <linux/platform_device.h>
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#ifdef CONFIG_OF_DEVICE
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#include <linux/device.h>
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#include <linux/of.h>
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#include <linux/mod_devicetable.h>
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#include <asm/of_device.h>
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#define to_of_device(d) container_of(d, struct of_device, dev)
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extern const struct of_device_id *of_match_device(
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const struct of_device_id *matches, const struct device *dev);
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/**
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* of_driver_match_device - Tell if a driver's of_match_table matches a device.
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* @drv: the device_driver structure to test
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* @dev: the device structure to match against
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*/
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static inline int of_driver_match_device(const struct device *dev,
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const struct device_driver *drv)
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{
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return of_match_device(drv->of_match_table, dev) != NULL;
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}
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extern struct of_device *of_dev_get(struct of_device *dev);
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extern void of_dev_put(struct of_device *dev);
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extern int of_device_register(struct of_device *ofdev);
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extern void of_device_unregister(struct of_device *ofdev);
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extern void of_release_dev(struct device *dev);
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static inline void of_device_free(struct of_device *dev)
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{
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of_release_dev(&dev->dev);
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}
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extern ssize_t of_device_get_modalias(struct device *dev,
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char *str, ssize_t len);
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extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
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#else /* CONFIG_OF_DEVICE */
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static inline int of_driver_match_device(struct device *dev,
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struct device_driver *drv)
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{
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return 0;
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}
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static inline int of_device_uevent(struct device *dev,
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struct kobj_uevent_env *env)
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{
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return -ENODEV;
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}
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#endif /* CONFIG_OF_DEVICE */
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#endif /* _LINUX_OF_DEVICE_H */
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