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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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b826291c14
Add a new .of_match field to struct device which points at the matching device driver .of_match_table entry when a device is probed via the device tree Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
#ifndef _LINUX_OF_DEVICE_H
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#define _LINUX_OF_DEVICE_H
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#include <linux/platform_device.h>
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#include <linux/of_platform.h> /* temporary until merge */
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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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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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extern void of_device_make_bus_id(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(struct device *dev,
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const struct device_driver *drv)
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{
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dev->of_match = of_match_device(drv->of_match_table, dev);
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return dev->of_match != NULL;
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}
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extern struct platform_device *of_dev_get(struct platform_device *dev);
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extern void of_dev_put(struct platform_device *dev);
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extern int of_device_add(struct platform_device *pdev);
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extern int of_device_register(struct platform_device *ofdev);
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extern void of_device_unregister(struct platform_device *ofdev);
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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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static inline void of_device_node_put(struct device *dev)
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{
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of_node_put(dev->of_node);
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}
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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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static inline void of_device_node_put(struct device *dev) { }
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#endif /* CONFIG_OF_DEVICE */
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#endif /* _LINUX_OF_DEVICE_H */
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