diff options
Diffstat (limited to 'include/linux/platform_device.h')
| -rw-r--r-- | include/linux/platform_device.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 3d5bbcbae730..3bd0f1f0d870 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -344,6 +344,19 @@ static inline void platform_set_drvdata(struct platform_device *pdev, #define builtin_platform_driver(__platform_driver) \ builtin_driver(__platform_driver, platform_driver_register) +/* + * subsys_platform_driver() - Helper macro for drivers that don't do anything + * special in module init/exit but need to register earlier, at + * subsys_initcall level, when built in. This eliminates a lot of + * boilerplate. Each driver may only use this macro once, and calling it + * replaces module_init() and module_exit(). This is meant to be a parallel + * of module_platform_driver() above, but with the init call promoted to + * subsys_initcall() so built-in providers are available earlier during boot. + */ +#define subsys_platform_driver(__platform_driver) \ + subsys_driver(__platform_driver, platform_driver_register, \ + platform_driver_unregister) + /* module_platform_driver_probe() - 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 @@ -376,6 +389,23 @@ static int __init __platform_driver##_init(void) \ } \ device_initcall(__platform_driver##_init); \ +/* + * subsys_platform_driver_probe() - Helper macro for drivers that don't do + * anything special in device init and have no exit, but need to register + * earlier, at subsys_initcall level. This eliminates some boilerplate. Each + * driver may only use this macro once, and using it replaces subsys_initcall. + * This is meant to be a parallel of builtin_platform_driver_probe above, but + * with the init call promoted to subsys_initcall so the provider is available + * earlier during boot. + */ +#define subsys_platform_driver_probe(__platform_driver, __platform_probe) \ +static int __init __platform_driver##_init(void) \ +{ \ + return platform_driver_probe(&(__platform_driver), \ + __platform_probe); \ +} \ +subsys_initcall(__platform_driver##_init) \ + #define platform_create_bundle(driver, probe, res, n_res, data, size) \ __platform_create_bundle(driver, probe, res, n_res, data, size, THIS_MODULE, KBUILD_MODNAME) extern struct platform_device *__platform_create_bundle( |