1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Copyright (C) 2014 Linaro Ltd |
4 | * |
5 | * Author: Ulf Hansson <ulf.hansson@linaro.org> |
6 | */ |
7 | #ifndef _MMC_CORE_PWRSEQ_H |
8 | #define _MMC_CORE_PWRSEQ_H |
9 | |
10 | #include <linux/types.h> |
11 | |
12 | struct mmc_host; |
13 | struct device; |
14 | struct module; |
15 | |
16 | struct 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 | |
23 | struct 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_OF |
31 | |
32 | int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq); |
33 | void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq); |
34 | |
35 | int mmc_pwrseq_alloc(struct mmc_host *host); |
36 | void mmc_pwrseq_pre_power_on(struct mmc_host *host); |
37 | void mmc_pwrseq_post_power_on(struct mmc_host *host); |
38 | void mmc_pwrseq_power_off(struct mmc_host *host); |
39 | void mmc_pwrseq_reset(struct mmc_host *host); |
40 | void mmc_pwrseq_free(struct mmc_host *host); |
41 | |
42 | #else |
43 | |
44 | static inline int mmc_pwrseq_register(struct mmc_pwrseq *pwrseq) |
45 | { |
46 | return -ENOSYS; |
47 | } |
48 | static inline void mmc_pwrseq_unregister(struct mmc_pwrseq *pwrseq) {} |
49 | static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; } |
50 | static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {} |
51 | static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {} |
52 | static inline void mmc_pwrseq_power_off(struct mmc_host *host) {} |
53 | static inline void mmc_pwrseq_reset(struct mmc_host *host) {} |
54 | static inline void mmc_pwrseq_free(struct mmc_host *host) {} |
55 | |
56 | #endif |
57 | |
58 | #endif |
59 | |