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/* 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
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