include/linux/firmware/samsung/exynos-acpm-protocol.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2020 Samsung Electronics Co., Ltd.
 * Copyright 2020 Google LLC.
 * Copyright 2024 Linaro Ltd.
 */

#ifndef __EXYNOS_ACPM_PROTOCOL_H
#define __EXYNOS_ACPM_PROTOCOL_H

#include <linux/types.h>

struct acpm_handle;
struct device_node;

struct acpm_dvfs_ops {
	int (*set_rate)(struct acpm_handle *handle, unsigned int acpm_chan_id,
			unsigned int clk_id, unsigned long rate);
	unsigned long (*get_rate)(struct acpm_handle *handle,
				  unsigned int acpm_chan_id,
				  unsigned int clk_id);
};

struct acpm_pmic_ops {
	int (*read_reg)(struct acpm_handle *handle, unsigned int acpm_chan_id,
			u8 type, u8 reg, u8 chan, u8 *buf);
	int (*bulk_read)(struct acpm_handle *handle, unsigned int acpm_chan_id,
			 u8 type, u8 reg, u8 chan, u8 count, u8 *buf);
	int (*write_reg)(struct acpm_handle *handle, unsigned int acpm_chan_id,
			 u8 type, u8 reg, u8 chan, u8 value);
	int (*bulk_write)(struct acpm_handle *handle, unsigned int acpm_chan_id,
			  u8 type, u8 reg, u8 chan, u8 count, const u8 *buf);
	int (*update_reg)(struct acpm_handle *handle, unsigned int acpm_chan_id,
			  u8 type, u8 reg, u8 chan, u8 value, u8 mask);
};

struct acpm_ops {
	struct acpm_dvfs_ops dvfs_ops;
	struct acpm_pmic_ops pmic_ops;
};

/**
 * struct acpm_handle - Reference to an initialized protocol instance
 * @ops:
 */
struct acpm_handle {
	struct acpm_ops ops;
};

struct device;

#if IS_ENABLED(CONFIG_EXYNOS_ACPM_PROTOCOL)
struct acpm_handle *devm_acpm_get_by_node(struct device *dev,
					  struct device_node *np);
#else

static inline struct acpm_handle *devm_acpm_get_by_node(struct device *dev,
							struct device_node *np)
{
	return NULL;
}
#endif

#endif /* __EXYNOS_ACPM_PROTOCOL_H */