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name : rohm-generic.h
 /* SPDX-License-Identifier: GPL-2.0-or-later */
/* Copyright (C) 2018 ROHM Semiconductors */

#ifndef __LINUX_MFD_ROHM_H__
#define __LINUX_MFD_ROHM_H__

#include <linux/regmap.h>
#include <linux/regulator/driver.h>

enum rohm_chip_type {
	ROHM_CHIP_TYPE_BD9571,
	ROHM_CHIP_TYPE_BD9573,
	ROHM_CHIP_TYPE_BD9574,
	ROHM_CHIP_TYPE_BD9576,
	ROHM_CHIP_TYPE_BD71815,
	ROHM_CHIP_TYPE_BD71828,
	ROHM_CHIP_TYPE_BD71837,
	ROHM_CHIP_TYPE_BD71847,
	ROHM_CHIP_TYPE_AMOUNT
};

struct rohm_regmap_dev {
	struct device *dev;
	struct regmap *regmap;
};

#define ROHM_DVS_LEVEL_RUN		BIT(0)
#define ROHM_DVS_LEVEL_IDLE		BIT(1)
#define ROHM_DVS_LEVEL_SUSPEND		BIT(2)
#define ROHM_DVS_LEVEL_LPSR		BIT(3)
#define ROHM_DVS_LEVEL_SNVS		BIT(4)
#define ROHM_DVS_LEVEL_VALID_AMOUNT	5
#define ROHM_DVS_LEVEL_UNKNOWN		0

/**
 * struct rohm_dvs_config - dynamic voltage scaling register descriptions
 *
 * @level_map:		bitmap representing supported run-levels for this
 *			regulator
 * @run_reg:		register address for regulator config at 'run' state
 * @run_mask:		value mask for regulator voltages at 'run' state
 * @run_on_mask:	enable mask for regulator at 'run' state
 * @idle_reg:		register address for regulator config at 'idle' state
 * @idle_mask:		value mask for regulator voltages at 'idle' state
 * @idle_on_mask:	enable mask for regulator at 'idle' state
 * @suspend_reg:	register address for regulator config at 'suspend' state
 * @suspend_mask:	value mask for regulator voltages at 'suspend' state
 * @suspend_on_mask:	enable mask for regulator at 'suspend' state
 * @lpsr_reg:		register address for regulator config at 'lpsr' state
 * @lpsr_mask:		value mask for regulator voltages at 'lpsr' state
 * @lpsr_on_mask:	enable mask for regulator at 'lpsr' state
 *
 * Description of ROHM PMICs voltage configuration registers for different
 * system states. This is used to correctly configure the PMIC at startup
 * based on values read from DT.
 */
struct rohm_dvs_config {
	uint64_t level_map;
	unsigned int run_reg;
	unsigned int run_mask;
	unsigned int run_on_mask;
	unsigned int idle_reg;
	unsigned int idle_mask;
	unsigned int idle_on_mask;
	unsigned int suspend_reg;
	unsigned int suspend_mask;
	unsigned int suspend_on_mask;
	unsigned int lpsr_reg;
	unsigned int lpsr_mask;
	unsigned int lpsr_on_mask;
	unsigned int snvs_reg;
	unsigned int snvs_mask;
	unsigned int snvs_on_mask;
};

#if IS_ENABLED(CONFIG_REGULATOR_ROHM)
int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
				  struct device_node *np,
				  const struct regulator_desc *desc,
				  struct regmap *regmap);

int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev,
					      unsigned int sel);
#endif

#endif
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