linux/mmc/pm.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * linux/include/linux/mmc/pm.h
0004  *
0005  * Author:  Nicolas Pitre
0006  * Copyright:   (C) 2009 Marvell Technology Group Ltd.
0007  */
0008
0009 #ifndef LINUX_MMC_PM_H
0010 #define LINUX_MMC_PM_H
0011
0012 /*
0013  * These flags are used to describe power management features that
0014  * some cards (typically SDIO cards) might wish to benefit from when
0015  * the host system is being suspended.  There are several layers of
0016  * abstractions involved, from the host controller driver, to the MMC core
0017  * code, to the SDIO core code, to finally get to the actual SDIO function
0018  * driver.  This file is therefore used for common definitions shared across
0019  * all those layers.
0020  */
0021
0022 typedef unsigned int mmc_pm_flag_t;
0023
0024 #define MMC_PM_KEEP_POWER   (1 << 0)    /* preserve card power during suspend */
0025 #define MMC_PM_WAKE_SDIO_IRQ    (1 << 1)    /* wake up host system on SDIO IRQ assertion */
0026
0027 #endif /* LINUX_MMC_PM_H */