// SPDX-License-Identifier: GPL-2.0-only /* * Regulator driver for National Semiconductors LP3972 PMIC chip * * Based on lp3971.c */ #include <linux/bug.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/regulator/driver.h> #include <linux/regulator/lp3972.h> #include <linux/slab.h> struct lp3972 { … }; /* LP3972 Control Registers */ #define LP3972_SCR_REG … #define LP3972_OVER1_REG … #define LP3972_OVSR1_REG … #define LP3972_OVER2_REG … #define LP3972_OVSR2_REG … #define LP3972_VCC1_REG … #define LP3972_ADTV1_REG … #define LP3972_ADTV2_REG … #define LP3972_AVRC_REG … #define LP3972_CDTC1_REG … #define LP3972_CDTC2_REG … #define LP3972_SDTV1_REG … #define LP3972_SDTV2_REG … #define LP3972_MDTV1_REG … #define LP3972_MDTV2_REG … #define LP3972_L2VCR_REG … #define LP3972_L34VCR_REG … #define LP3972_SCR1_REG … #define LP3972_SCR2_REG … #define LP3972_OEN3_REG … #define LP3972_OSR3_REG … #define LP3972_LOER4_REG … #define LP3972_B2TV_REG … #define LP3972_B3TV_REG … #define LP3972_B32RC_REG … #define LP3972_ISRA_REG … #define LP3972_BCCR_REG … #define LP3972_II1RR_REG … #define LP3972_II2RR_REG … #define LP3972_SYS_CONTROL1_REG … /* System control register 1 initial value, * bits 5, 6 and 7 are EPROM programmable */ #define SYS_CONTROL1_INIT_VAL … #define SYS_CONTROL1_INIT_MASK … #define LP3972_VOL_CHANGE_REG … #define LP3972_VOL_CHANGE_FLAG_GO … #define LP3972_VOL_CHANGE_FLAG_MASK … /* LDO output enable mask */ #define LP3972_OEN3_L1EN … #define LP3972_OVER2_LDO2_EN … #define LP3972_OVER2_LDO3_EN … #define LP3972_OVER2_LDO4_EN … #define LP3972_OVER1_S_EN … static const unsigned int ldo1_voltage_map[] = …; static const unsigned int ldo23_voltage_map[] = …; static const unsigned int ldo4_voltage_map[] = …; static const unsigned int ldo5_voltage_map[] = …; static const unsigned int buck1_voltage_map[] = …; static const unsigned int buck23_voltage_map[] = …; static const int ldo_output_enable_mask[] = …; static const int ldo_output_enable_addr[] = …; static const int ldo_vol_ctl_addr[] = …; static const int buck_vol_enable_addr[] = …; static const int buck_base_addr[] = …; #define LP3972_LDO_OUTPUT_ENABLE_MASK(x) … #define LP3972_LDO_OUTPUT_ENABLE_REG(x) … /* LDO voltage control registers shift: LP3972_LDO1 -> 0, LP3972_LDO2 -> 4 LP3972_LDO3 -> 0, LP3972_LDO4 -> 4 LP3972_LDO5 -> 0 */ #define LP3972_LDO_VOL_CONTR_SHIFT(x) … #define LP3972_LDO_VOL_CONTR_REG(x) … #define LP3972_LDO_VOL_CHANGE_SHIFT(x) … #define LP3972_LDO_VOL_MASK(x) … #define LP3972_LDO_VOL_MIN_IDX(x) … #define LP3972_LDO_VOL_MAX_IDX(x) … #define LP3972_BUCK_VOL_ENABLE_REG(x) … #define LP3972_BUCK_VOL1_REG(x) … #define LP3972_BUCK_VOL_MASK … static int lp3972_i2c_read(struct i2c_client *i2c, char reg, int count, u16 *dest) { … } static int lp3972_i2c_write(struct i2c_client *i2c, char reg, int count, const u16 *src) { … } static u8 lp3972_reg_read(struct lp3972 *lp3972, u8 reg) { … } static int lp3972_set_bits(struct lp3972 *lp3972, u8 reg, u16 mask, u16 val) { … } static int lp3972_ldo_is_enabled(struct regulator_dev *dev) { … } static int lp3972_ldo_enable(struct regulator_dev *dev) { … } static int lp3972_ldo_disable(struct regulator_dev *dev) { … } static int lp3972_ldo_get_voltage_sel(struct regulator_dev *dev) { … } static int lp3972_ldo_set_voltage_sel(struct regulator_dev *dev, unsigned int selector) { … } static const struct regulator_ops lp3972_ldo_ops = …; static int lp3972_dcdc_is_enabled(struct regulator_dev *dev) { … } static int lp3972_dcdc_enable(struct regulator_dev *dev) { … } static int lp3972_dcdc_disable(struct regulator_dev *dev) { … } static int lp3972_dcdc_get_voltage_sel(struct regulator_dev *dev) { … } static int lp3972_dcdc_set_voltage_sel(struct regulator_dev *dev, unsigned int selector) { … } static const struct regulator_ops lp3972_dcdc_ops = …; static const struct regulator_desc regulators[] = …; static int setup_regulators(struct lp3972 *lp3972, struct lp3972_platform_data *pdata) { … } static int lp3972_i2c_probe(struct i2c_client *i2c) { … } static const struct i2c_device_id lp3972_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, lp3972_i2c_id); static struct i2c_driver lp3972_i2c_driver = …; static int __init lp3972_module_init(void) { … } subsys_initcall(lp3972_module_init); static void __exit lp3972_module_exit(void) { … } module_exit(lp3972_module_exit); MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
Codebase Browser
linux