LXR linux/drivers/mmc/core/pwrseq.h

   1/*
   2 * Copyright (C) 2014 Linaro Ltd
   3 *
   4 * Author: Ulf Hansson <ulf.hansson@linaro.org>
   5 *
   6 * License terms: GNU General Public License (GPL) version 2
   7 */
   8#ifndef _MMC_CORE_PWRSEQ_H
   9#define _MMC_CORE_PWRSEQ_H
  10
  11struct mmc_pwrseq_ops {
  12        void (*pre_power_on)(struct mmc_host *host);
  13        void (*post_power_on)(struct mmc_host *host);
  14        void (*power_off)(struct mmc_host *host);
  15        void (*free)(struct mmc_host *host);
  16};
  17
  18struct mmc_pwrseq {
  19        struct mmc_pwrseq_ops *ops;
  20};
  21
  22#ifdef CONFIG_OF
  23
  24int mmc_pwrseq_alloc(struct mmc_host *host);
  25void mmc_pwrseq_pre_power_on(struct mmc_host *host);
  26void mmc_pwrseq_post_power_on(struct mmc_host *host);
  27void mmc_pwrseq_power_off(struct mmc_host *host);
  28void mmc_pwrseq_free(struct mmc_host *host);
  29
  30struct mmc_pwrseq *mmc_pwrseq_simple_alloc(struct mmc_host *host,
  31                                           struct device *dev);
  32struct mmc_pwrseq *mmc_pwrseq_emmc_alloc(struct mmc_host *host,
  33                                         struct device *dev);
  34
  35#else
  36
  37static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; }
  38static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {}
  39static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {}
  40static inline void mmc_pwrseq_power_off(struct mmc_host *host) {}
  41static inline void mmc_pwrseq_free(struct mmc_host *host) {}
  42
  43#endif
  44
  45#endif
  46