// SPDX-License-Identifier: GPL-2.0-or-later /* * Split TWL6030 logic from twl-regulator.c: * Copyright (C) 2008 David Brownell * * Copyright (C) 2016 Nicolae Rosia <[email protected]> */ #include <linux/module.h> #include <linux/string.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/err.h> #include <linux/platform_device.h> #include <linux/of.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #include <linux/mfd/twl.h> #include <linux/delay.h> struct twlreg_info { … }; /* LDO control registers ... offset is from the base of its register bank. * The first three registers of all power resource banks help hardware to * manage the various resource groups. */ /* Common offset in TWL4030/6030 */ #define VREG_GRP … /* TWL6030 register offsets */ #define VREG_TRANS … #define VREG_STATE … #define VREG_VOLTAGE … #define VREG_VOLTAGE_SMPS … /* TWL6030 Misc register offsets */ #define VREG_BC_ALL … #define VREG_BC_REF … #define VREG_BC_PROC … #define VREG_BC_CLK_RST … /* TWL6030 LDO register values for VREG_VOLTAGE */ #define TWL6030_VREG_VOLTAGE_WR_S … /* TWL6030 LDO register values for CFG_STATE */ #define TWL6030_CFG_STATE_OFF … #define TWL6030_CFG_STATE_ON … #define TWL6030_CFG_STATE_OFF2 … #define TWL6030_CFG_STATE_SLEEP … #define TWL6030_CFG_STATE_GRP_SHIFT … #define TWL6030_CFG_STATE_APP_SHIFT … #define TWL6030_CFG_STATE_MASK … #define TWL6030_CFG_STATE_APP_MASK … #define TWL6030_CFG_STATE_APP(v) … /* Flags for SMPS Voltage reading and LDO reading*/ #define SMPS_OFFSET_EN … #define SMPS_EXTENDED_EN … #define TWL_6030_WARM_RESET … /* twl6032 SMPS EPROM values */ #define TWL6030_SMPS_OFFSET … #define TWL6030_SMPS_MULT … #define SMPS_MULTOFFSET_SMPS4 … #define SMPS_MULTOFFSET_VIO … #define SMPS_MULTOFFSET_SMPS3 … static inline int twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset) { … } static inline int twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset, u8 value) { … } /* generic power resource operations, which work on all regulators */ static int twlreg_grp(struct regulator_dev *rdev) { … } /* * Enable/disable regulators by joining/leaving the P1 (processor) group. * We assume nobody else is updating the DEV_GRP registers. */ /* definition for 6030 family */ #define P3_GRP_6030 … #define P2_GRP_6030 … #define P1_GRP_6030 … static int twl6030reg_is_enabled(struct regulator_dev *rdev) { … } #define PB_I2C_BUSY … #define PB_I2C_BWEN … static int twl6030reg_enable(struct regulator_dev *rdev) { … } static int twl6030reg_disable(struct regulator_dev *rdev) { … } static int twl6030reg_get_status(struct regulator_dev *rdev) { … } static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode) { … } static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector) { … } static int twl6030coresmps_get_voltage(struct regulator_dev *rdev) { … } static const struct regulator_ops twl6030coresmps_ops = …; static int twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { … } static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev) { … } static const struct regulator_ops twl6030ldo_ops = …; static const struct regulator_ops twl6030fixed_ops = …; /* * SMPS status and control */ static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index) { … } static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { … } static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev, unsigned int selector) { … } static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev) { … } static const struct regulator_ops twlsmps_ops = …; /*----------------------------------------------------------------------*/ static const struct linear_range twl6030ldo_linear_range[] = …; #define TWL6030_ADJUSTABLE_SMPS(label) … #define TWL6030_ADJUSTABLE_LDO(label, offset) … #define TWL6032_ADJUSTABLE_LDO(label, offset) … #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) … #define TWL6032_ADJUSTABLE_SMPS(label, offset) … /* VUSBCP is managed *only* by the USB subchip */ /* 6030 REG with base as PMC Slave Misc : 0x0030 */ /* Turnon-delay and remap configuration values for 6030 are not verified since the specification is not public */ TWL6030_ADJUSTABLE_SMPS(…); TWL6030_ADJUSTABLE_SMPS(…); TWL6030_ADJUSTABLE_SMPS(…); TWL6030_ADJUSTABLE_LDO(…); TWL6030_ADJUSTABLE_LDO(…); TWL6030_ADJUSTABLE_LDO(…); TWL6030_ADJUSTABLE_LDO(…); TWL6030_ADJUSTABLE_LDO(…); TWL6030_ADJUSTABLE_LDO(…); /* 6025 are renamed compared to 6030 versions */ TWL6032_ADJUSTABLE_LDO(…); TWL6032_ADJUSTABLE_LDO(…); TWL6032_ADJUSTABLE_LDO(…); TWL6032_ADJUSTABLE_LDO(…); TWL6032_ADJUSTABLE_LDO(…); TWL6032_ADJUSTABLE_LDO(…); TWL6032_ADJUSTABLE_LDO(…); TWL6032_ADJUSTABLE_LDO(…); TWL6032_ADJUSTABLE_LDO(…); TWL6030_FIXED_LDO(…); TWL6030_FIXED_LDO(…); TWL6030_FIXED_LDO(…); TWL6030_FIXED_LDO(…); TWL6030_FIXED_LDO(…); TWL6030_FIXED_LDO(…); TWL6032_ADJUSTABLE_SMPS(…); TWL6032_ADJUSTABLE_SMPS(…); TWL6032_ADJUSTABLE_SMPS(…); static u8 twl_get_smps_offset(void) { … } static u8 twl_get_smps_mult(void) { … } #define TWL_OF_MATCH(comp, family, label) … #define TWL6030_OF_MATCH(comp, label) … #define TWL6032_OF_MATCH(comp, label) … #define TWLFIXED_OF_MATCH(comp, label) … #define TWLSMPS_OF_MATCH(comp, label) … static const struct of_device_id twl_of_match[] = …; MODULE_DEVICE_TABLE(of, twl_of_match); static int twlreg_probe(struct platform_device *pdev) { … } MODULE_ALIAS(…) …; static struct platform_driver twlreg_driver = …; static int __init twlreg_init(void) { … } subsys_initcall(twlreg_init); static void __exit twlreg_exit(void) { … } module_exit(…) MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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