59 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2014 Linaro Ltd4 *5 * Author: Ulf Hansson <ulf.hansson@linaro.org>6 */7#ifndef _MMC_CORE_PWRSEQ_H8#define _MMC_CORE_PWRSEQ_H9 10#include <linux/types.h>11 12struct mmc_host;13struct device;14struct module;15 16struct mmc_pwrseq_ops {17 void (*pre_power_on)(struct mmc_host *host);18 void (*post_power_on)(struct mmc_host *host);19 void (*power_off)(struct mmc_host *host);20 void (*reset)(struct mmc_host *host);21};22 23struct mmc_pwrseq {24 const struct mmc_pwrseq_ops *ops;25 struct device *dev;26 struct list_head pwrseq_node;27 struct module *owner;28};29 30#ifdef CONFIG_OF31 32int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq);33void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq);34 35int mmc_pwrseq_alloc(struct mmc_host *host);36void mmc_pwrseq_pre_power_on(struct mmc_host *host);37void mmc_pwrseq_post_power_on(struct mmc_host *host);38void mmc_pwrseq_power_off(struct mmc_host *host);39void mmc_pwrseq_reset(struct mmc_host *host);40void mmc_pwrseq_free(struct mmc_host *host);41 42#else43 44static inline int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq)45{46 return -ENOSYS;47}48static inline void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq) {}49static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; }50static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {}51static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {}52static inline void mmc_pwrseq_power_off(struct mmc_host *host) {}53static inline void mmc_pwrseq_reset(struct mmc_host *host) {}54static inline void mmc_pwrseq_free(struct mmc_host *host) {}55 56#endif57 58#endif59