drivers/mmc/core/host.h

   1 /*
   2  *  linux/drivers/mmc/core/host.h
   3  *
   4  *  Copyright (C) 2003 Russell King, All Rights Reserved.
   5  *  Copyright 2007 Pierre Ossman
   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 #ifndef _MMC_CORE_HOST_H
  12 #define _MMC_CORE_HOST_H
  13 #include <linux/mmc/host.h>
  14
  15 int mmc_register_host_class(void);
  16 void mmc_unregister_host_class(void);
  17
  18 #ifdef CONFIG_MMC_CLKGATE
  19 void mmc_host_clk_hold(struct mmc_host *host);
  20 void mmc_host_clk_release(struct mmc_host *host);
  21 unsigned int mmc_host_clk_rate(struct mmc_host *host);
  22
  23 #else
  24 static inline void mmc_host_clk_hold(struct mmc_host *host)
  25 {
  26 }
  27
  28 static inline void mmc_host_clk_release(struct mmc_host *host)
  29 {
  30 }
  31
  32 static inline unsigned int mmc_host_clk_rate(struct mmc_host *host)
  33 {
  34         return host->ios.clock;
  35 }
  36 #endif
  37
  38 void mmc_host_deeper_disable(struct work_struct *work);
  39
  40 #endif
  41