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drivercore: Add helper macro for platform_driver boilerplate

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For simple modules that contain a single platform_driver without any
additional setup code then ends up being a block of duplicated
boilerplate.  This patch adds a new macro, module_platform_driver(),
which replaces the module_init()/module_exit() registrations with
template functions.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Reviewed-by: Magnus Damm <magnus.damm@gmail.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Grant Likely 2011-10-05 11:29:49 -06:00
parent 38ada214fa
commit 940ab88962
27 changed files with 63 additions and 329 deletions
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17
include/linux/platform_device.h
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@ -146,6 +146,23 @@ static inline void platform_set_drvdata(struct platform_device *pdev, void *data
dev_set_drvdata(&pdev->dev, data);
}
/* module_platform_driver() - Helper macro for drivers that don't do
* anything special in module init/exit. This eliminates a lot of
* boilerplate. Each module may only use this macro once, and
* 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);
extern struct platform_device *platform_create_bundle(struct platform_driver *driver,
int (*probe)(struct platform_device *),
struct resource *res, unsigned int n_res,