include/linux/mmc/pm.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * linux/include/linux/mmc/pm.h
   4  *
   5  * Author:      Nicolas Pitre
   6  * Copyright:   (C) 2009 Marvell Technology Group Ltd.
   7  */
   8
   9 #ifndef LINUX_MMC_PM_H
  10 #define LINUX_MMC_PM_H
  11
  12 /*
  13  * These flags are used to describe power management features that
  14  * some cards (typically SDIO cards) might wish to benefit from when
  15  * the host system is being suspended.  There are several layers of
  16  * abstractions involved, from the host controller driver, to the MMC core
  17  * code, to the SDIO core code, to finally get to the actual SDIO function
  18  * driver.  This file is therefore used for common definitions shared across
  19  * all those layers.
  20  */
  21
  22 typedef unsigned int mmc_pm_flag_t;
  23
  24 #define MMC_PM_KEEP_POWER       (1 << 0)        /* preserve card power during suspend */
  25 #define MMC_PM_WAKE_SDIO_IRQ    (1 << 1)        /* wake up host system on SDIO IRQ assertion */
  26
  27 #endif /* LINUX_MMC_PM_H */