name : platform_early.h /* SPDX--License-Identifier: GPL-2.0 */ #ifndef __PLATFORM_EARLY__ #define __PLATFORM_EARLY__ #include <linux/types.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/slab.h> struct sh_early_platform_driver { const char *class_str; struct platform_driver *pdrv; struct list_head list; int requested_id; char *buffer; int bufsize; }; #define EARLY_PLATFORM_ID_UNSET -2 #define EARLY_PLATFORM_ID_ERROR -3 extern int sh_early_platform_driver_register(struct sh_early_platform_driver *epdrv, char *buf); extern void sh_early_platform_add_devices(struct platform_device **devs, int num); static inline int is_sh_early_platform_device(struct platform_device *pdev) { return !pdev->dev.driver; } extern void sh_early_platform_driver_register_all(char *class_str); extern int sh_early_platform_driver_probe(char *class_str, int nr_probe, int user_only); #define sh_early_platform_init(class_string, platdrv) \ sh_early_platform_init_buffer(class_string, platdrv, NULL, 0) #ifndef MODULE #define sh_early_platform_init_buffer(class_string, platdrv, buf, bufsiz) \ static __initdata struct sh_early_platform_driver early_driver = { \ .class_str = class_string, \ .buffer = buf, \ .bufsize = bufsiz, \ .pdrv = platdrv, \ .requested_id = EARLY_PLATFORM_ID_UNSET, \ }; \ static int __init sh_early_platform_driver_setup_func(char *buffer) \ { \ return sh_early_platform_driver_register(&early_driver, buffer); \ } \ early_param(class_string, sh_early_platform_driver_setup_func) #else /* MODULE */ #define sh_early_platform_init_buffer(class_string, platdrv, buf, bufsiz) \ static inline char *sh_early_platform_driver_setup_func(void) \ { \ return bufsiz ? buf : NULL; \ } #endif /* MODULE */ #endif /* __PLATFORM_EARLY__ */