LXR linux/arch/sh/include/asm/platform

   1/* SPDX--License-Identifier: GPL-2.0 */
   2
   3#ifndef __PLATFORM_EARLY__
   4#define __PLATFORM_EARLY__
   5
   6#include <linux/types.h>
   7#include <linux/platform_device.h>
   8#include <linux/pm_runtime.h>
   9#include <linux/slab.h>
  10
  11struct sh_early_platform_driver {
  12        const char *class_str;
  13        struct platform_driver *pdrv;
  14        struct list_head list;
  15        int requested_id;
  16        char *buffer;
  17        int bufsize;
  18};
  19
  20#define EARLY_PLATFORM_ID_UNSET -2
  21#define EARLY_PLATFORM_ID_ERROR -3
  22
  23extern int sh_early_platform_driver_register(struct sh_early_platform_driver *epdrv,
  24                                          char *buf);
  25extern void sh_early_platform_add_devices(struct platform_device **devs, int num);
  26
  27static inline int is_sh_early_platform_device(struct platform_device *pdev)
  28{
  29        return !pdev->dev.driver;
  30}
  31
  32extern void sh_early_platform_driver_register_all(char *class_str);
  33extern int sh_early_platform_driver_probe(char *class_str,
  34                                       int nr_probe, int user_only);
  35
  36#define sh_early_platform_init(class_string, platdrv)           \
  37        sh_early_platform_init_buffer(class_string, platdrv, NULL, 0)
  38
  39#ifndef MODULE
  40#define sh_early_platform_init_buffer(class_string, platdrv, buf, bufsiz)       \
  41static __initdata struct sh_early_platform_driver early_driver = {              \
  42        .class_str = class_string,                                      \
  43        .buffer = buf,                                                  \
  44        .bufsize = bufsiz,                                              \
  45        .pdrv = platdrv,                                                \
  46        .requested_id = EARLY_PLATFORM_ID_UNSET,                        \
  47};                                                                      \
  48static int __init sh_early_platform_driver_setup_func(char *buffer)     \
  49{                                                                       \
  50        return sh_early_platform_driver_register(&early_driver, buffer);        \
  51}                                                                       \
  52early_param(class_string, sh_early_platform_driver_setup_func)
  53#else /* MODULE */
  54#define sh_early_platform_init_buffer(class_string, platdrv, buf, bufsiz)       \
  55static inline char *sh_early_platform_driver_setup_func(void)           \
  56{                                                                       \
  57        return bufsiz ? buf : NULL;                                     \
  58}
  59#endif /* MODULE */
  60
  61#endif /* __PLATFORM_EARLY__ */
  62