include/linux/mmc/pm.h

   1 /*
   2  * linux/include/linux/mmc/pm.h
   3  *
   4  * Author:      Nicolas Pitre
   5  * Copyright:   (C) 2009 Marvell Technology Group Ltd.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #ifndef LINUX_MMC_PM_H
  13 #define LINUX_MMC_PM_H
  14
  15 /*
  16  * These flags are used to describe power management features that
  17  * some cards (typically SDIO cards) might wish to benefit from when
  18  * the host system is being suspended.  There are several layers of
  19  * abstractions involved, from the host controller driver, to the MMC core
  20  * code, to the SDIO core code, to finally get to the actual SDIO function
  21  * driver.  This file is therefore used for common definitions shared across
  22  * all those layers.
  23  */
  24
  25 typedef unsigned int mmc_pm_flag_t;
  26
  27 #define MMC_PM_KEEP_POWER       (1 << 0)        /* preserve card power during suspend */
  28 #define MMC_PM_WAKE_SDIO_IRQ    (1 << 1)        /* wake up host system on SDIO IRQ assertion */
  29
  30 #endif /* LINUX_MMC_PM_H */