1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
---|---|
2 | /* |
3 | * Copyright (C) 2020 Linaro Ltd |
4 | * |
5 | * Author: Daniel Lezcano <daniel.lezcano@linaro.org> |
6 | */ |
7 | #ifndef ___DTPM_H__ |
8 | #define ___DTPM_H__ |
9 | |
10 | #include <linux/powercap.h> |
11 | |
12 | #define MAX_DTPM_DESCR 8 |
13 | #define MAX_DTPM_CONSTRAINTS 1 |
14 | |
15 | struct dtpm { |
16 | struct powercap_zone zone; |
17 | struct dtpm *parent; |
18 | struct list_head sibling; |
19 | struct list_head children; |
20 | struct dtpm_ops *ops; |
21 | unsigned long flags; |
22 | u64 power_limit; |
23 | u64 power_max; |
24 | u64 power_min; |
25 | int weight; |
26 | }; |
27 | |
28 | struct dtpm_ops { |
29 | u64 (*set_power_uw)(struct dtpm *, u64); |
30 | u64 (*get_power_uw)(struct dtpm *); |
31 | int (*update_power_uw)(struct dtpm *); |
32 | void (*release)(struct dtpm *); |
33 | }; |
34 | |
35 | struct device_node; |
36 | |
37 | struct dtpm_subsys_ops { |
38 | const char *name; |
39 | int (*init)(void); |
40 | void (*exit)(void); |
41 | int (*setup)(struct dtpm *, struct device_node *); |
42 | }; |
43 | |
44 | enum DTPM_NODE_TYPE { |
45 | DTPM_NODE_VIRTUAL = 0, |
46 | DTPM_NODE_DT, |
47 | }; |
48 | |
49 | struct dtpm_node { |
50 | enum DTPM_NODE_TYPE type; |
51 | const char *name; |
52 | struct dtpm_node *parent; |
53 | }; |
54 | |
55 | static inline struct dtpm *to_dtpm(struct powercap_zone *zone) |
56 | { |
57 | return container_of(zone, struct dtpm, zone); |
58 | } |
59 | |
60 | int dtpm_update_power(struct dtpm *dtpm); |
61 | |
62 | int dtpm_release_zone(struct powercap_zone *pcz); |
63 | |
64 | void dtpm_init(struct dtpm *dtpm, struct dtpm_ops *ops); |
65 | |
66 | void dtpm_unregister(struct dtpm *dtpm); |
67 | |
68 | int dtpm_register(const char *name, struct dtpm *dtpm, struct dtpm *parent); |
69 | |
70 | int dtpm_create_hierarchy(struct of_device_id *dtpm_match_table); |
71 | |
72 | void dtpm_destroy_hierarchy(void); |
73 | #endif |
74 |