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/* 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_BD70528,
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);
#else
static inline int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
struct device_node *np,
const struct regulator_desc *desc,
struct regmap *regmap)
{
return 0;
}
#endif
#endif