9c829c097f
In the case of ULPI devices, we want to be able to load the driver before registering the device so that we don't get stuck in a loop waiting for the phy module to appear and failing usb controller probe. Currently we request the ulpi module via the ulpi ids, but in the DT case we might need to request it with the OF based modalias instead. Add a common function that allows anyone to request a module with the OF based modalias. Acked-by: Rob Herring <robh@kernel.org> Cc: <devicetree@vger.kernel.org> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org> Signed-off-by: Peter Chen <peter.chen@nxp.com>
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
#ifndef _LINUX_OF_DEVICE_H
|
|
#define _LINUX_OF_DEVICE_H
|
|
|
|
#include <linux/cpu.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/of_platform.h> /* temporary until merge */
|
|
|
|
#include <linux/of.h>
|
|
#include <linux/mod_devicetable.h>
|
|
|
|
struct device;
|
|
|
|
#ifdef CONFIG_OF
|
|
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(struct device *dev,
|
|
const struct device_driver *drv)
|
|
{
|
|
return of_match_device(drv->of_match_table, dev) != NULL;
|
|
}
|
|
|
|
extern struct platform_device *of_dev_get(struct platform_device *dev);
|
|
extern void of_dev_put(struct platform_device *dev);
|
|
|
|
extern int of_device_add(struct platform_device *pdev);
|
|
extern int of_device_register(struct platform_device *ofdev);
|
|
extern void of_device_unregister(struct platform_device *ofdev);
|
|
|
|
extern const void *of_device_get_match_data(const struct device *dev);
|
|
|
|
extern ssize_t of_device_get_modalias(struct device *dev,
|
|
char *str, ssize_t len);
|
|
extern int of_device_request_module(struct device *dev);
|
|
|
|
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);
|
|
|
|
static inline void of_device_node_put(struct device *dev)
|
|
{
|
|
of_node_put(dev->of_node);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
void of_dma_configure(struct device *dev, struct device_node *np);
|
|
#else /* CONFIG_OF */
|
|
|
|
static inline int of_driver_match_device(struct device *dev,
|
|
const struct device_driver *drv)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void of_device_uevent(struct device *dev,
|
|
struct kobj_uevent_env *env) { }
|
|
|
|
static inline const void *of_device_get_match_data(const struct device *dev)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_device_get_modalias(struct device *dev,
|
|
char *str, ssize_t len)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int of_device_request_module(struct device *dev)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int of_device_uevent_modalias(struct device *dev,
|
|
struct kobj_uevent_env *env)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline void of_device_node_put(struct device *dev) { }
|
|
|
|
static inline const struct of_device_id *__of_match_device(
|
|
const struct of_device_id *matches, const struct device *dev)
|
|
{
|
|
return NULL;
|
|
}
|
|
#define of_match_device(matches, dev) \
|
|
__of_match_device(of_match_ptr(matches), (dev))
|
|
|
|
static inline struct device_node *of_cpu_device_node_get(int cpu)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline void of_dma_configure(struct device *dev, struct device_node *np)
|
|
{}
|
|
#endif /* CONFIG_OF */
|
|
|
|
#endif /* _LINUX_OF_DEVICE_H */
|