of_device.h 2.79 KB
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#ifndef _LINUX_OF_DEVICE_H
#define _LINUX_OF_DEVICE_H

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#include <linux/cpu.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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#include <linux/of.h>
#include <linux/mod_devicetable.h>
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struct device;

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#ifdef CONFIG_OF
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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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/**
 * 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
 */
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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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	return of_match_device(drv->of_match_table, dev) != NULL;
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}

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extern struct platform_device *of_dev_get(struct platform_device *dev);
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);
extern void of_device_unregister(struct platform_device *ofdev);
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extern const void *of_device_get_match_data(const struct device *dev);

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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 void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
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static inline void of_device_node_put(struct device *dev)
{
	of_node_put(dev->of_node);
}
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static inline struct device_node *of_cpu_device_node_get(int cpu)
{
	struct device *cpu_dev;
	cpu_dev = get_cpu_device(cpu);
	if (!cpu_dev)
		return NULL;
	return of_node_get(cpu_dev->of_node);
}

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void of_dma_configure(struct device *dev, struct device_node *np);
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#else /* CONFIG_OF */
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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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{
	return 0;
}

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static inline void of_device_uevent(struct device *dev,
			struct kobj_uevent_env *env) { }

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static inline const void *of_device_get_match_data(const struct device *dev)
{
	return NULL;
}

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static inline int of_device_get_modalias(struct device *dev,
				   char *str, ssize_t len)
{
	return -ENODEV;
}

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static inline int of_device_uevent_modalias(struct device *dev,
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				   struct kobj_uevent_env *env)
{
	return -ENODEV;
}

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static inline void of_device_node_put(struct device *dev) { }

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static inline const struct of_device_id *__of_match_device(
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		const struct of_device_id *matches, const struct device *dev)
{
	return NULL;
}
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#define of_match_device(matches, dev)	\
	__of_match_device(of_match_ptr(matches), (dev))
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static inline struct device_node *of_cpu_device_node_get(int cpu)
{
	return NULL;
}
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static inline void of_dma_configure(struct device *dev, struct device_node *np)
{}
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#endif /* CONFIG_OF */
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#endif /* _LINUX_OF_DEVICE_H */