/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2020 Linaro Ltd * * Author: Daniel Lezcano <daniel.lezcano@linaro.org> */ #ifndef ___DTPM_H__ #define ___DTPM_H__ #include <linux/powercap.h> #define MAX_DTPM_DESCR 8 #define MAX_DTPM_CONSTRAINTS 1 struct dtpm { struct powercap_zone zone; struct dtpm *parent; struct list_head sibling; struct list_head children; struct dtpm_ops *ops; unsigned long flags; u64 power_limit; u64 power_max; u64 power_min; int weight; }; struct dtpm_ops { u64 (*set_power_uw)(struct dtpm *, u64); u64 (*get_power_uw)(struct dtpm *); int (*update_power_uw)(struct dtpm *); void (*release)(struct dtpm *); }; struct device_node; struct dtpm_subsys_ops { const char *name; int (*init)(void); void (*exit)(void); int (*setup)(struct dtpm *, struct device_node *); }; enum DTPM_NODE_TYPE { DTPM_NODE_VIRTUAL = 0, DTPM_NODE_DT, }; struct dtpm_node { enum DTPM_NODE_TYPE type; const char *name; struct dtpm_node *parent; }; static inline struct dtpm *to_dtpm(struct powercap_zone *zone) { return container_of(zone, struct dtpm, zone); } int dtpm_update_power(struct dtpm *dtpm); int dtpm_release_zone(struct powercap_zone *pcz); void dtpm_init(struct dtpm *dtpm, struct dtpm_ops *ops); void dtpm_unregister(struct dtpm *dtpm); int dtpm_register(const char *name, struct dtpm *dtpm, struct dtpm *parent); int dtpm_create_hierarchy(struct of_device_id *dtpm_match_table); void dtpm_destroy_hierarchy(void); #endif