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
11#include <linux/types.h>
12
13struct mmc_host;
14struct device;
15struct module;
16
17struct mmc_pwrseq_ops {
18	void (*pre_power_on)(struct mmc_host *host);
19	void (*post_power_on)(struct mmc_host *host);
20	void (*power_off)(struct mmc_host *host);
21	void (*reset)(struct mmc_host *host);
22};
23
24struct mmc_pwrseq {
25	const struct mmc_pwrseq_ops *ops;
26	struct device *dev;
27	struct list_head pwrseq_node;
28	struct module *owner;
29};
30
31#ifdef CONFIG_OF
32
33int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq);
34void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq);
35
36int mmc_pwrseq_alloc(struct mmc_host *host);
37void mmc_pwrseq_pre_power_on(struct mmc_host *host);
38void mmc_pwrseq_post_power_on(struct mmc_host *host);
39void mmc_pwrseq_power_off(struct mmc_host *host);
40void mmc_pwrseq_reset(struct mmc_host *host);
41void mmc_pwrseq_free(struct mmc_host *host);
42
43#else
44
45static inline int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq)
46{
47	return -ENOSYS;
48}
49static inline void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq) {}
50static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; }
51static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {}
52static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {}
53static inline void mmc_pwrseq_power_off(struct mmc_host *host) {}
54static inline void mmc_pwrseq_reset(struct mmc_host *host) {}
55static inline void mmc_pwrseq_free(struct mmc_host *host) {}
56
57#endif
58
59#endif