arch/arm/mach-s3c/pm-common.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
   4  *      Tomasz Figa <t.figa@samsung.com>
   5  * Copyright (c) 2004 Simtec Electronics
   6  *      http://armlinux.simtec.co.uk/
   7  *      Written by Ben Dooks, <ben@simtec.co.uk>
   8  */
   9
  10 #ifndef __PLAT_SAMSUNG_PM_COMMON_H
  11 #define __PLAT_SAMSUNG_PM_COMMON_H __FILE__
  12
  13 #include <linux/irq.h>
  14 #include <linux/soc/samsung/s3c-pm.h>
  15
  16 /* sleep save info */
  17
  18 /**
  19  * struct sleep_save - save information for shared peripherals.
  20  * @reg: Pointer to the register to save.
  21  * @val: Holder for the value saved from reg.
  22  *
  23  * This describes a list of registers which is used by the pm core and
  24  * other subsystem to save and restore register values over suspend.
  25  */
  26 struct sleep_save {
  27         void __iomem    *reg;
  28         unsigned long   val;
  29 };
  30
  31 #define SAVE_ITEM(x) \
  32         { .reg = (x) }
  33
  34 /* helper functions to save/restore lists of registers. */
  35
  36 extern void s3c_pm_do_save(struct sleep_save *ptr, int count);
  37 extern void s3c_pm_do_restore(const struct sleep_save *ptr, int count);
  38 extern void s3c_pm_do_restore_core(const struct sleep_save *ptr, int count);
  39
  40 #endif