7eebde700f
This patch first splits of_device.c and of_platform.c, the later containing the bits relative to of_platform_device's. On the "breaks" side of things, drivers uisng of_platform_device(s) need to include asm/of_platform.h now and of_(un)register_driver is now of_(un)register_platform_driver. In addition to a few utility functions to locate of_platform_device(s), the main new addition is of_platform_bus_probe() which allows the platform code to trigger an automatic creation of of_platform_devices for a whole tree of devices. The function acts based on the type of the various "parent" devices encountered from a provided root, using either a default known list of bus types that can be "probed" or a passed-in list. It will only register devices on busses matching that list, which mean that typically, it will not register PCI devices, as expected (since they will be picked up by the PCI layer). This will be used by Cell platforms using 4xx-type IOs in the Axon bridge and can be used by any embedded-type device as well. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#ifndef _ASM_POWERPC_OF_DEVICE_H
|
|
#define _ASM_POWERPC_OF_DEVICE_H
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <asm/prom.h>
|
|
|
|
|
|
/*
|
|
* The of_device is a kind of "base class" that is a superset of
|
|
* struct device for use by devices attached to an OF node and
|
|
* probed using OF properties
|
|
*/
|
|
struct of_device
|
|
{
|
|
struct device_node *node; /* OF device node */
|
|
u64 dma_mask; /* DMA mask */
|
|
struct device dev; /* Generic device interface */
|
|
};
|
|
#define to_of_device(d) container_of(d, struct of_device, dev)
|
|
|
|
extern const struct of_device_id *of_match_node(
|
|
const struct of_device_id *matches, const struct device_node *node);
|
|
extern const struct of_device_id *of_match_device(
|
|
const struct of_device_id *matches, const struct of_device *dev);
|
|
|
|
extern struct of_device *of_dev_get(struct of_device *dev);
|
|
extern void of_dev_put(struct of_device *dev);
|
|
|
|
extern int of_device_register(struct of_device *ofdev);
|
|
extern void of_device_unregister(struct of_device *ofdev);
|
|
extern void of_release_dev(struct device *dev);
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_POWERPC_OF_DEVICE_H */
|