1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* Copyright (C) 2018 ROHM Semiconductors */ 3 4 #ifndef __LINUX_MFD_ROHM_H__ 5 #define __LINUX_MFD_ROHM_H__ 6 7 #include <linux/regmap.h> 8 #include <linux/regulator/driver.h> 9 10 enum rohm_chip_type { 11 ROHM_CHIP_TYPE_BD9571, 12 ROHM_CHIP_TYPE_BD9573, 13 ROHM_CHIP_TYPE_BD9574, 14 ROHM_CHIP_TYPE_BD9576, 15 ROHM_CHIP_TYPE_BD71815, 16 ROHM_CHIP_TYPE_BD71828, 17 ROHM_CHIP_TYPE_BD71837, 18 ROHM_CHIP_TYPE_BD71847, 19 ROHM_CHIP_TYPE_BD96801, 20 ROHM_CHIP_TYPE_BD96802, 21 ROHM_CHIP_TYPE_BD96805, 22 ROHM_CHIP_TYPE_BD96806, 23 ROHM_CHIP_TYPE_AMOUNT 24 }; 25 26 struct rohm_regmap_dev { 27 struct device *dev; 28 struct regmap *regmap; 29 }; 30 31 #define ROHM_DVS_LEVEL_RUN BIT(0) 32 #define ROHM_DVS_LEVEL_IDLE BIT(1) 33 #define ROHM_DVS_LEVEL_SUSPEND BIT(2) 34 #define ROHM_DVS_LEVEL_LPSR BIT(3) 35 #define ROHM_DVS_LEVEL_SNVS BIT(4) 36 #define ROHM_DVS_LEVEL_VALID_AMOUNT 5 37 #define ROHM_DVS_LEVEL_UNKNOWN 0 38 39 /** 40 * struct rohm_dvs_config - dynamic voltage scaling register descriptions 41 * 42 * @level_map: bitmap representing supported run-levels for this 43 * regulator 44 * @run_reg: register address for regulator config at 'run' state 45 * @run_mask: value mask for regulator voltages at 'run' state 46 * @run_on_mask: enable mask for regulator at 'run' state 47 * @idle_reg: register address for regulator config at 'idle' state 48 * @idle_mask: value mask for regulator voltages at 'idle' state 49 * @idle_on_mask: enable mask for regulator at 'idle' state 50 * @suspend_reg: register address for regulator config at 'suspend' state 51 * @suspend_mask: value mask for regulator voltages at 'suspend' state 52 * @suspend_on_mask: enable mask for regulator at 'suspend' state 53 * @lpsr_reg: register address for regulator config at 'lpsr' state 54 * @lpsr_mask: value mask for regulator voltages at 'lpsr' state 55 * @lpsr_on_mask: enable mask for regulator at 'lpsr' state 56 * 57 * Description of ROHM PMICs voltage configuration registers for different 58 * system states. This is used to correctly configure the PMIC at startup 59 * based on values read from DT. 60 */ 61 struct rohm_dvs_config { 62 uint64_t level_map; 63 unsigned int run_reg; 64 unsigned int run_mask; 65 unsigned int run_on_mask; 66 unsigned int idle_reg; 67 unsigned int idle_mask; 68 unsigned int idle_on_mask; 69 unsigned int suspend_reg; 70 unsigned int suspend_mask; 71 unsigned int suspend_on_mask; 72 unsigned int lpsr_reg; 73 unsigned int lpsr_mask; 74 unsigned int lpsr_on_mask; 75 unsigned int snvs_reg; 76 unsigned int snvs_mask; 77 unsigned int snvs_on_mask; 78 }; 79 80 #if IS_ENABLED(CONFIG_REGULATOR_ROHM) 81 int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs, 82 struct device_node *np, 83 const struct regulator_desc *desc, 84 struct regmap *regmap); 85 86 int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev, 87 unsigned int sel); 88 #endif 89 90 #endif 91