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a20d0ef9 DL |
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; | |
a20d0ef9 DL |
26 | }; |
27 | ||
28 | struct dtpm_ops { | |
29 | u64 (*set_power_uw)(struct dtpm *, u64); | |
30 | u64 (*get_power_uw)(struct dtpm *); | |
4570ddda | 31 | int (*update_power_uw)(struct dtpm *); |
a20d0ef9 DL |
32 | void (*release)(struct dtpm *); |
33 | }; | |
34 | ||
3759ec67 DL |
35 | struct device_node; |
36 | ||
b9794a82 DL |
37 | struct dtpm_subsys_ops { |
38 | const char *name; | |
39 | int (*init)(void); | |
c404c64d | 40 | void (*exit)(void); |
3759ec67 DL |
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; | |
a20d0ef9 DL |
53 | }; |
54 | ||
a20d0ef9 DL |
55 | static inline struct dtpm *to_dtpm(struct powercap_zone *zone) |
56 | { | |
57 | return container_of(zone, struct dtpm, zone); | |
58 | } | |
59 | ||
4570ddda | 60 | int dtpm_update_power(struct dtpm *dtpm); |
a20d0ef9 DL |
61 | |
62 | int dtpm_release_zone(struct powercap_zone *pcz); | |
63 | ||
d2cdc6ad | 64 | void dtpm_init(struct dtpm *dtpm, struct dtpm_ops *ops); |
a20d0ef9 DL |
65 | |
66 | void dtpm_unregister(struct dtpm *dtpm); | |
67 | ||
68 | int dtpm_register(const char *name, struct dtpm *dtpm, struct dtpm *parent); | |
69 | ||
3759ec67 | 70 | int dtpm_create_hierarchy(struct of_device_id *dtpm_match_table); |
c404c64d DL |
71 | |
72 | void dtpm_destroy_hierarchy(void); | |
a20d0ef9 | 73 | #endif |