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drivercore: Generalize module_platform_driver

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This patch generalizes the module_platform_driver macro and introduces a new
module_driver macro. The module_driver macro takes a driver name, a register
and a unregister function for this driver type. Using these it construct the
module init and exit sections which register and unregister the driver. Since
such init/exit sections are commonly found in drivers this macro can be used
to eliminate a lot of boilerplate code.

The macro is not intended to be used by driver modules directly, instead it
should be used to generate bus specific macros for registering drivers like
the module_platform_driver macro.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Lars-Peter Clausen 2011-11-16 10:13:35 +01:00 • committed by Greg Kroah-Hartman
parent 377195c438
commit 907d0ed1c8
2 changed files with 23 additions and 10 deletions
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12
include/linux/platform_device.h
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@ -196,16 +196,8 @@ static inline void platform_set_drvdata(struct platform_device *pdev, void *data
* calling it replaces module_init() and module_exit()
*/
#define module_platform_driver(__platform_driver) \
static int __init __platform_driver##_init(void) \
{ \
return platform_driver_register(&(__platform_driver)); \
} \
module_init(__platform_driver##_init); \
static void __exit __platform_driver##_exit(void) \
{ \
platform_driver_unregister(&(__platform_driver)); \
} \
module_exit(__platform_driver##_exit);
module_driver(__platform_driver, platform_driver_register, \
platform_driver_unregister)
extern struct platform_device *platform_create_bundle(struct platform_driver *driver,
int (*probe)(struct platform_device *),