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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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d8bf254089
Add a helper that registers simple platform_device w/o resources but with parent and device data. This is usefull to cleanup platform code from code that registers such simple devices as leds-gpio, generic-bl, etc. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/*
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* platform_device.h - generic, centralized driver model
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*
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* Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
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*
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* This file is released under the GPLv2
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*
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* See Documentation/driver-model/ for more information.
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*/
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#ifndef _PLATFORM_DEVICE_H_
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#define _PLATFORM_DEVICE_H_
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#include <linux/device.h>
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struct platform_device {
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const char * name;
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int id;
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struct device dev;
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u32 num_resources;
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struct resource * resource;
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};
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#define to_platform_device(x) container_of((x), struct platform_device, dev)
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extern int platform_device_register(struct platform_device *);
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extern void platform_device_unregister(struct platform_device *);
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extern struct bus_type platform_bus_type;
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extern struct device platform_bus;
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extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int);
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extern int platform_get_irq(struct platform_device *, unsigned int);
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extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, char *);
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extern int platform_get_irq_byname(struct platform_device *, char *);
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extern int platform_add_devices(struct platform_device **, int);
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extern struct platform_device *platform_device_register_simple(const char *, int id,
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struct resource *, unsigned int);
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extern struct platform_device *platform_device_register_data(struct device *,
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const char *, int, const void *, size_t);
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extern struct platform_device *platform_device_alloc(const char *name, int id);
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extern int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num);
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extern int platform_device_add_data(struct platform_device *pdev, const void *data, size_t size);
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extern int platform_device_add(struct platform_device *pdev);
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extern void platform_device_del(struct platform_device *pdev);
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extern void platform_device_put(struct platform_device *pdev);
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struct platform_driver {
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int (*probe)(struct platform_device *);
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int (*remove)(struct platform_device *);
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void (*shutdown)(struct platform_device *);
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int (*suspend)(struct platform_device *, pm_message_t state);
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int (*suspend_late)(struct platform_device *, pm_message_t state);
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int (*resume_early)(struct platform_device *);
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int (*resume)(struct platform_device *);
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struct pm_ext_ops *pm;
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struct device_driver driver;
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};
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extern int platform_driver_register(struct platform_driver *);
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extern void platform_driver_unregister(struct platform_driver *);
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/* non-hotpluggable platform devices may use this so that probe() and
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* its support may live in __init sections, conserving runtime memory.
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*/
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extern int platform_driver_probe(struct platform_driver *driver,
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int (*probe)(struct platform_device *));
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#define platform_get_drvdata(_dev) dev_get_drvdata(&(_dev)->dev)
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#define platform_set_drvdata(_dev,data) dev_set_drvdata(&(_dev)->dev, (data))
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#endif /* _PLATFORM_DEVICE_H_ */
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