87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* Copyright (C) 2018 ROHM Semiconductors */
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#ifndef __LINUX_MFD_ROHM_H__
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#define __LINUX_MFD_ROHM_H__
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#include <linux/regmap.h>
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#include <linux/regulator/driver.h>
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enum rohm_chip_type {
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ROHM_CHIP_TYPE_BD9571,
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ROHM_CHIP_TYPE_BD9573,
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ROHM_CHIP_TYPE_BD9574,
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ROHM_CHIP_TYPE_BD9576,
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ROHM_CHIP_TYPE_BD71815,
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ROHM_CHIP_TYPE_BD71828,
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ROHM_CHIP_TYPE_BD71837,
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ROHM_CHIP_TYPE_BD71847,
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ROHM_CHIP_TYPE_AMOUNT
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};
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struct rohm_regmap_dev {
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struct device *dev;
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struct regmap *regmap;
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};
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#define ROHM_DVS_LEVEL_RUN BIT(0)
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#define ROHM_DVS_LEVEL_IDLE BIT(1)
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#define ROHM_DVS_LEVEL_SUSPEND BIT(2)
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#define ROHM_DVS_LEVEL_LPSR BIT(3)
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#define ROHM_DVS_LEVEL_SNVS BIT(4)
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#define ROHM_DVS_LEVEL_VALID_AMOUNT 5
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#define ROHM_DVS_LEVEL_UNKNOWN 0
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/**
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* struct rohm_dvs_config - dynamic voltage scaling register descriptions
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*
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* @level_map: bitmap representing supported run-levels for this
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* regulator
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* @run_reg: register address for regulator config at 'run' state
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* @run_mask: value mask for regulator voltages at 'run' state
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* @run_on_mask: enable mask for regulator at 'run' state
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* @idle_reg: register address for regulator config at 'idle' state
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* @idle_mask: value mask for regulator voltages at 'idle' state
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* @idle_on_mask: enable mask for regulator at 'idle' state
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* @suspend_reg: register address for regulator config at 'suspend' state
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* @suspend_mask: value mask for regulator voltages at 'suspend' state
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* @suspend_on_mask: enable mask for regulator at 'suspend' state
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* @lpsr_reg: register address for regulator config at 'lpsr' state
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* @lpsr_mask: value mask for regulator voltages at 'lpsr' state
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* @lpsr_on_mask: enable mask for regulator at 'lpsr' state
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*
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* Description of ROHM PMICs voltage configuration registers for different
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* system states. This is used to correctly configure the PMIC at startup
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* based on values read from DT.
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*/
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struct rohm_dvs_config {
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uint64_t level_map;
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unsigned int run_reg;
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unsigned int run_mask;
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unsigned int run_on_mask;
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unsigned int idle_reg;
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unsigned int idle_mask;
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unsigned int idle_on_mask;
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unsigned int suspend_reg;
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unsigned int suspend_mask;
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unsigned int suspend_on_mask;
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unsigned int lpsr_reg;
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unsigned int lpsr_mask;
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unsigned int lpsr_on_mask;
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unsigned int snvs_reg;
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unsigned int snvs_mask;
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unsigned int snvs_on_mask;
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};
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#if IS_ENABLED(CONFIG_REGULATOR_ROHM)
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int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
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struct device_node *np,
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const struct regulator_desc *desc,
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struct regmap *regmap);
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int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev,
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unsigned int sel);
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#endif
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#endif
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