arch/mips/include/asm/mach-malta/malta-pm.h

   1 /*
   2  * Copyright (C) 2014 Imagination Technologies
   3  * Author: Paul Burton <paul.burton@mips.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation;  either version 2 of the  License, or (at your
   8  * option) any later version.
   9  */
  10
  11 #ifndef __ASM_MIPS_MACH_MALTA_PM_H__
  12 #define __ASM_MIPS_MACH_MALTA_PM_H__
  13
  14 #include <asm/mips-boards/piix4.h>
  15
  16 #ifdef CONFIG_MIPS_MALTA_PM
  17
  18 /**
  19  * mips_pm_suspend - enter a suspend state
  20  * @state: the state to enter, one of PIIX4_FUNC3IO_PMCNTRL_SUS_TYP_*
  21  *
  22  * Enters a suspend state via the Malta's PIIX4. If the state to be entered
  23  * is one which loses context (eg. SOFF) then this function will never
  24  * return.
  25  */
  26 extern int mips_pm_suspend(unsigned state);
  27
  28 #else /* !CONFIG_MIPS_MALTA_PM */
  29
  30 static inline int mips_pm_suspend(unsigned state)
  31 {
  32         return -EINVAL;
  33 }
  34
  35 #endif /* !CONFIG_MIPS_MALTA_PM */
  36
  37 #endif /* __ASM_MIPS_MACH_MALTA_PM_H__ */