| /* |
| * Split TWL6030 logic from twl-regulator.c: |
| * Copyright (C) 2008 David Brownell |
| * |
| * Copyright (C) 2016 Nicolae Rosia <nicolae.rosia@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #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/of_device.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 { |
| /* start of regulator's PM_RECEIVER control register bank */ |
| u8 base; |
| |
| /* twl resource ID, for resource control state machine */ |
| u8 id; |
| |
| /* chip constraints on regulator behavior */ |
| u16 min_mV; |
| |
| u8 flags; |
| |
| /* used by regulator core */ |
| struct regulator_desc desc; |
| |
| /* chip specific features */ |
| unsigned long features; |
| |
| /* data passed from board for external get/set voltage */ |
| void *data; |
| }; |
| |
| |
| /* 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 0 |
| /* TWL6030 register offsets */ |
| #define VREG_TRANS 1 |
| #define VREG_STATE 2 |
| #define VREG_VOLTAGE 3 |
| #define VREG_VOLTAGE_SMPS 4 |
| /* TWL6030 Misc register offsets */ |
| #define VREG_BC_ALL 1 |
| #define VREG_BC_REF 2 |
| #define VREG_BC_PROC 3 |
| #define VREG_BC_CLK_RST 4 |
| |
| /* TWL6030 LDO register values for CFG_STATE */ |
| #define TWL6030_CFG_STATE_OFF 0x00 |
| #define TWL6030_CFG_STATE_ON 0x01 |
| #define TWL6030_CFG_STATE_OFF2 0x02 |
| #define TWL6030_CFG_STATE_SLEEP 0x03 |
| #define TWL6030_CFG_STATE_GRP_SHIFT 5 |
| #define TWL6030_CFG_STATE_APP_SHIFT 2 |
| #define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT) |
| #define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\ |
| TWL6030_CFG_STATE_APP_SHIFT) |
| |
| /* Flags for SMPS Voltage reading */ |
| #define SMPS_OFFSET_EN BIT(0) |
| #define SMPS_EXTENDED_EN BIT(1) |
| |
| /* twl6032 SMPS EPROM values */ |
| #define TWL6030_SMPS_OFFSET 0xB0 |
| #define TWL6030_SMPS_MULT 0xB3 |
| #define SMPS_MULTOFFSET_SMPS4 BIT(0) |
| #define SMPS_MULTOFFSET_VIO BIT(1) |
| #define SMPS_MULTOFFSET_SMPS3 BIT(6) |
| |
| static inline int |
| twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset) |
| { |
| u8 value; |
| int status; |
| |
| status = twl_i2c_read_u8(slave_subgp, |
| &value, info->base + offset); |
| return (status < 0) ? status : value; |
| } |
| |
| static inline int |
| twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset, |
| u8 value) |
| { |
| return twl_i2c_write_u8(slave_subgp, |
| value, info->base + offset); |
| } |
| |
| /* generic power resource operations, which work on all regulators */ |
| static int twlreg_grp(struct regulator_dev *rdev) |
| { |
| return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER, |
| VREG_GRP); |
| } |
| |
| /* |
| * 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 BIT(2) /* secondary processor, modem, etc */ |
| #define P2_GRP_6030 BIT(1) /* "peripherals" */ |
| #define P1_GRP_6030 BIT(0) /* CPU/Linux */ |
| |
| static int twl6030reg_is_enabled(struct regulator_dev *rdev) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| int grp = 0, val; |
| |
| if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) { |
| grp = twlreg_grp(rdev); |
| if (grp < 0) |
| return grp; |
| grp &= P1_GRP_6030; |
| } else { |
| grp = 1; |
| } |
| |
| val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); |
| val = TWL6030_CFG_STATE_APP(val); |
| |
| return grp && (val == TWL6030_CFG_STATE_ON); |
| } |
| |
| #define PB_I2C_BUSY BIT(0) |
| #define PB_I2C_BWEN BIT(1) |
| |
| |
| static int twl6030reg_enable(struct regulator_dev *rdev) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| int grp = 0; |
| int ret; |
| |
| if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) |
| grp = twlreg_grp(rdev); |
| if (grp < 0) |
| return grp; |
| |
| ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, |
| grp << TWL6030_CFG_STATE_GRP_SHIFT | |
| TWL6030_CFG_STATE_ON); |
| return ret; |
| } |
| |
| static int twl6030reg_disable(struct regulator_dev *rdev) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| int grp = 0; |
| int ret; |
| |
| if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) |
| grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030; |
| |
| /* For 6030, set the off state for all grps enabled */ |
| ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, |
| (grp) << TWL6030_CFG_STATE_GRP_SHIFT | |
| TWL6030_CFG_STATE_OFF); |
| |
| return ret; |
| } |
| |
| static int twl6030reg_get_status(struct regulator_dev *rdev) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| int val; |
| |
| val = twlreg_grp(rdev); |
| if (val < 0) |
| return val; |
| |
| val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE); |
| |
| switch (TWL6030_CFG_STATE_APP(val)) { |
| case TWL6030_CFG_STATE_ON: |
| return REGULATOR_STATUS_NORMAL; |
| |
| case TWL6030_CFG_STATE_SLEEP: |
| return REGULATOR_STATUS_STANDBY; |
| |
| case TWL6030_CFG_STATE_OFF: |
| case TWL6030_CFG_STATE_OFF2: |
| default: |
| break; |
| } |
| |
| return REGULATOR_STATUS_OFF; |
| } |
| |
| static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| int grp = 0; |
| int val; |
| |
| if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) |
| grp = twlreg_grp(rdev); |
| |
| if (grp < 0) |
| return grp; |
| |
| /* Compose the state register settings */ |
| val = grp << TWL6030_CFG_STATE_GRP_SHIFT; |
| /* We can only set the mode through state machine commands... */ |
| switch (mode) { |
| case REGULATOR_MODE_NORMAL: |
| val |= TWL6030_CFG_STATE_ON; |
| break; |
| case REGULATOR_MODE_STANDBY: |
| val |= TWL6030_CFG_STATE_SLEEP; |
| break; |
| |
| default: |
| return -EINVAL; |
| } |
| |
| return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val); |
| } |
| |
| static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV, |
| int max_uV, unsigned *selector) |
| { |
| return -ENODEV; |
| } |
| |
| static int twl6030coresmps_get_voltage(struct regulator_dev *rdev) |
| { |
| return -ENODEV; |
| } |
| |
| static struct regulator_ops twl6030coresmps_ops = { |
| .set_voltage = twl6030coresmps_set_voltage, |
| .get_voltage = twl6030coresmps_get_voltage, |
| }; |
| |
| static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned sel) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| |
| switch (sel) { |
| case 0: |
| return 0; |
| case 1 ... 24: |
| /* Linear mapping from 00000001 to 00011000: |
| * Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001) |
| */ |
| return (info->min_mV + 100 * (sel - 1)) * 1000; |
| case 25 ... 30: |
| return -EINVAL; |
| case 31: |
| return 2750000; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static int |
| twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| |
| return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, |
| selector); |
| } |
| |
| static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE); |
| |
| return vsel; |
| } |
| |
| static struct regulator_ops twl6030ldo_ops = { |
| .list_voltage = twl6030ldo_list_voltage, |
| |
| .set_voltage_sel = twl6030ldo_set_voltage_sel, |
| .get_voltage_sel = twl6030ldo_get_voltage_sel, |
| |
| .enable = twl6030reg_enable, |
| .disable = twl6030reg_disable, |
| .is_enabled = twl6030reg_is_enabled, |
| |
| .set_mode = twl6030reg_set_mode, |
| |
| .get_status = twl6030reg_get_status, |
| }; |
| |
| static struct regulator_ops twl6030fixed_ops = { |
| .list_voltage = regulator_list_voltage_linear, |
| |
| .enable = twl6030reg_enable, |
| .disable = twl6030reg_disable, |
| .is_enabled = twl6030reg_is_enabled, |
| |
| .set_mode = twl6030reg_set_mode, |
| |
| .get_status = twl6030reg_get_status, |
| }; |
| |
| /* |
| * SMPS status and control |
| */ |
| |
| static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| |
| int voltage = 0; |
| |
| switch (info->flags) { |
| case SMPS_OFFSET_EN: |
| voltage = 100000; |
| /* fall through */ |
| case 0: |
| switch (index) { |
| case 0: |
| voltage = 0; |
| break; |
| case 58: |
| voltage = 1350 * 1000; |
| break; |
| case 59: |
| voltage = 1500 * 1000; |
| break; |
| case 60: |
| voltage = 1800 * 1000; |
| break; |
| case 61: |
| voltage = 1900 * 1000; |
| break; |
| case 62: |
| voltage = 2100 * 1000; |
| break; |
| default: |
| voltage += (600000 + (12500 * (index - 1))); |
| } |
| break; |
| case SMPS_EXTENDED_EN: |
| switch (index) { |
| case 0: |
| voltage = 0; |
| break; |
| case 58: |
| voltage = 2084 * 1000; |
| break; |
| case 59: |
| voltage = 2315 * 1000; |
| break; |
| case 60: |
| voltage = 2778 * 1000; |
| break; |
| case 61: |
| voltage = 2932 * 1000; |
| break; |
| case 62: |
| voltage = 3241 * 1000; |
| break; |
| default: |
| voltage = (1852000 + (38600 * (index - 1))); |
| } |
| break; |
| case SMPS_OFFSET_EN | SMPS_EXTENDED_EN: |
| switch (index) { |
| case 0: |
| voltage = 0; |
| break; |
| case 58: |
| voltage = 4167 * 1000; |
| break; |
| case 59: |
| voltage = 2315 * 1000; |
| break; |
| case 60: |
| voltage = 2778 * 1000; |
| break; |
| case 61: |
| voltage = 2932 * 1000; |
| break; |
| case 62: |
| voltage = 3241 * 1000; |
| break; |
| default: |
| voltage = (2161000 + (38600 * (index - 1))); |
| } |
| break; |
| } |
| |
| return voltage; |
| } |
| |
| static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV, |
| int max_uV) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| int vsel = 0; |
| |
| switch (info->flags) { |
| case 0: |
| if (min_uV == 0) |
| vsel = 0; |
| else if ((min_uV >= 600000) && (min_uV <= 1300000)) { |
| vsel = DIV_ROUND_UP(min_uV - 600000, 12500); |
| vsel++; |
| } |
| /* Values 1..57 for vsel are linear and can be calculated |
| * values 58..62 are non linear. |
| */ |
| else if ((min_uV > 1900000) && (min_uV <= 2100000)) |
| vsel = 62; |
| else if ((min_uV > 1800000) && (min_uV <= 1900000)) |
| vsel = 61; |
| else if ((min_uV > 1500000) && (min_uV <= 1800000)) |
| vsel = 60; |
| else if ((min_uV > 1350000) && (min_uV <= 1500000)) |
| vsel = 59; |
| else if ((min_uV > 1300000) && (min_uV <= 1350000)) |
| vsel = 58; |
| else |
| return -EINVAL; |
| break; |
| case SMPS_OFFSET_EN: |
| if (min_uV == 0) |
| vsel = 0; |
| else if ((min_uV >= 700000) && (min_uV <= 1420000)) { |
| vsel = DIV_ROUND_UP(min_uV - 700000, 12500); |
| vsel++; |
| } |
| /* Values 1..57 for vsel are linear and can be calculated |
| * values 58..62 are non linear. |
| */ |
| else if ((min_uV > 1900000) && (min_uV <= 2100000)) |
| vsel = 62; |
| else if ((min_uV > 1800000) && (min_uV <= 1900000)) |
| vsel = 61; |
| else if ((min_uV > 1500000) && (min_uV <= 1800000)) |
| vsel = 60; |
| else if ((min_uV > 1350000) && (min_uV <= 1500000)) |
| vsel = 59; |
| else |
| return -EINVAL; |
| break; |
| case SMPS_EXTENDED_EN: |
| if (min_uV == 0) { |
| vsel = 0; |
| } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) { |
| vsel = DIV_ROUND_UP(min_uV - 1852000, 38600); |
| vsel++; |
| } |
| break; |
| case SMPS_OFFSET_EN|SMPS_EXTENDED_EN: |
| if (min_uV == 0) { |
| vsel = 0; |
| } else if ((min_uV >= 2161000) && (min_uV <= 4321000)) { |
| vsel = DIV_ROUND_UP(min_uV - 2161000, 38600); |
| vsel++; |
| } |
| break; |
| } |
| |
| return vsel; |
| } |
| |
| static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev, |
| unsigned int selector) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| |
| return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS, |
| selector); |
| } |
| |
| static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev) |
| { |
| struct twlreg_info *info = rdev_get_drvdata(rdev); |
| |
| return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS); |
| } |
| |
| static struct regulator_ops twlsmps_ops = { |
| .list_voltage = twl6030smps_list_voltage, |
| .map_voltage = twl6030smps_map_voltage, |
| |
| .set_voltage_sel = twl6030smps_set_voltage_sel, |
| .get_voltage_sel = twl6030smps_get_voltage_sel, |
| |
| .enable = twl6030reg_enable, |
| .disable = twl6030reg_disable, |
| .is_enabled = twl6030reg_is_enabled, |
| |
| .set_mode = twl6030reg_set_mode, |
| |
| .get_status = twl6030reg_get_status, |
| }; |
| |
| /*----------------------------------------------------------------------*/ |
| |
| #define TWL6030_ADJUSTABLE_SMPS(label) \ |
| static const struct twlreg_info TWL6030_INFO_##label = { \ |
| .desc = { \ |
| .name = #label, \ |
| .id = TWL6030_REG_##label, \ |
| .ops = &twl6030coresmps_ops, \ |
| .type = REGULATOR_VOLTAGE, \ |
| .owner = THIS_MODULE, \ |
| }, \ |
| } |
| |
| #define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts) \ |
| static const struct twlreg_info TWL6030_INFO_##label = { \ |
| .base = offset, \ |
| .min_mV = min_mVolts, \ |
| .desc = { \ |
| .name = #label, \ |
| .id = TWL6030_REG_##label, \ |
| .n_voltages = 32, \ |
| .ops = &twl6030ldo_ops, \ |
| .type = REGULATOR_VOLTAGE, \ |
| .owner = THIS_MODULE, \ |
| }, \ |
| } |
| |
| #define TWL6032_ADJUSTABLE_LDO(label, offset, min_mVolts) \ |
| static const struct twlreg_info TWL6032_INFO_##label = { \ |
| .base = offset, \ |
| .min_mV = min_mVolts, \ |
| .desc = { \ |
| .name = #label, \ |
| .id = TWL6032_REG_##label, \ |
| .n_voltages = 32, \ |
| .ops = &twl6030ldo_ops, \ |
| .type = REGULATOR_VOLTAGE, \ |
| .owner = THIS_MODULE, \ |
| }, \ |
| } |
| |
| #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \ |
| static const struct twlreg_info TWLFIXED_INFO_##label = { \ |
| .base = offset, \ |
| .id = 0, \ |
| .min_mV = mVolts, \ |
| .desc = { \ |
| .name = #label, \ |
| .id = TWL6030##_REG_##label, \ |
| .n_voltages = 1, \ |
| .ops = &twl6030fixed_ops, \ |
| .type = REGULATOR_VOLTAGE, \ |
| .owner = THIS_MODULE, \ |
| .min_uV = mVolts * 1000, \ |
| .enable_time = turnon_delay, \ |
| .of_map_mode = NULL, \ |
| }, \ |
| } |
| |
| #define TWL6032_ADJUSTABLE_SMPS(label, offset) \ |
| static const struct twlreg_info TWLSMPS_INFO_##label = { \ |
| .base = offset, \ |
| .min_mV = 600, \ |
| .desc = { \ |
| .name = #label, \ |
| .id = TWL6032_REG_##label, \ |
| .n_voltages = 63, \ |
| .ops = &twlsmps_ops, \ |
| .type = REGULATOR_VOLTAGE, \ |
| .owner = THIS_MODULE, \ |
| }, \ |
| } |
| |
| /* 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(VDD1); |
| TWL6030_ADJUSTABLE_SMPS(VDD2); |
| TWL6030_ADJUSTABLE_SMPS(VDD3); |
| TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000); |
| TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000); |
| TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000); |
| TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000); |
| TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000); |
| TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000); |
| /* 6025 are renamed compared to 6030 versions */ |
| TWL6032_ADJUSTABLE_LDO(LDO2, 0x54, 1000); |
| TWL6032_ADJUSTABLE_LDO(LDO4, 0x58, 1000); |
| TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c, 1000); |
| TWL6032_ADJUSTABLE_LDO(LDO5, 0x68, 1000); |
| TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c, 1000); |
| TWL6032_ADJUSTABLE_LDO(LDO7, 0x74, 1000); |
| TWL6032_ADJUSTABLE_LDO(LDO6, 0x60, 1000); |
| TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64, 1000); |
| TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000); |
| TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0); |
| TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0); |
| TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0); |
| TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0); |
| TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0); |
| TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0); |
| TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34); |
| TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10); |
| TWL6032_ADJUSTABLE_SMPS(VIO, 0x16); |
| |
| static u8 twl_get_smps_offset(void) |
| { |
| u8 value; |
| |
| twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, |
| TWL6030_SMPS_OFFSET); |
| return value; |
| } |
| |
| static u8 twl_get_smps_mult(void) |
| { |
| u8 value; |
| |
| twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value, |
| TWL6030_SMPS_MULT); |
| return value; |
| } |
| |
| #define TWL_OF_MATCH(comp, family, label) \ |
| { \ |
| .compatible = comp, \ |
| .data = &family##_INFO_##label, \ |
| } |
| |
| #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label) |
| #define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label) |
| #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label) |
| #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label) |
| |
| static const struct of_device_id twl_of_match[] = { |
| TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1), |
| TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2), |
| TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3), |
| TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030), |
| TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030), |
| TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030), |
| TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC), |
| TWL6030_OF_MATCH("ti,twl6030-vpp", VPP), |
| TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM), |
| TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2), |
| TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4), |
| TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3), |
| TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5), |
| TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1), |
| TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7), |
| TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6), |
| TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN), |
| TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB), |
| TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA), |
| TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO), |
| TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC), |
| TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB), |
| TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8), |
| TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1), |
| TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3), |
| TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4), |
| TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO), |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(of, twl_of_match); |
| |
| static int twlreg_probe(struct platform_device *pdev) |
| { |
| int id; |
| struct twlreg_info *info; |
| const struct twlreg_info *template; |
| struct regulator_init_data *initdata; |
| struct regulation_constraints *c; |
| struct regulator_dev *rdev; |
| const struct of_device_id *match; |
| struct regulator_config config = { }; |
| |
| match = of_match_device(twl_of_match, &pdev->dev); |
| if (!match) |
| return -ENODEV; |
| |
| template = match->data; |
| if (!template) |
| return -ENODEV; |
| |
| id = template->desc.id; |
| initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node, |
| &template->desc); |
| if (!initdata) |
| return -EINVAL; |
| |
| info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL); |
| if (!info) |
| return -ENOMEM; |
| |
| /* Constrain board-specific capabilities according to what |
| * this driver and the chip itself can actually do. |
| */ |
| c = &initdata->constraints; |
| c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY; |
| c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE |
| | REGULATOR_CHANGE_MODE |
| | REGULATOR_CHANGE_STATUS; |
| |
| switch (id) { |
| case TWL6032_REG_SMPS3: |
| if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3) |
| info->flags |= SMPS_EXTENDED_EN; |
| if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3) |
| info->flags |= SMPS_OFFSET_EN; |
| break; |
| case TWL6032_REG_SMPS4: |
| if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4) |
| info->flags |= SMPS_EXTENDED_EN; |
| if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4) |
| info->flags |= SMPS_OFFSET_EN; |
| break; |
| case TWL6032_REG_VIO: |
| if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO) |
| info->flags |= SMPS_EXTENDED_EN; |
| if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO) |
| info->flags |= SMPS_OFFSET_EN; |
| break; |
| } |
| |
| config.dev = &pdev->dev; |
| config.init_data = initdata; |
| config.driver_data = info; |
| config.of_node = pdev->dev.of_node; |
| |
| rdev = devm_regulator_register(&pdev->dev, &info->desc, &config); |
| if (IS_ERR(rdev)) { |
| dev_err(&pdev->dev, "can't register %s, %ld\n", |
| info->desc.name, PTR_ERR(rdev)); |
| return PTR_ERR(rdev); |
| } |
| platform_set_drvdata(pdev, rdev); |
| |
| /* NOTE: many regulators support short-circuit IRQs (presentable |
| * as REGULATOR_OVER_CURRENT notifications?) configured via: |
| * - SC_CONFIG |
| * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4) |
| * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2) |
| * - IT_CONFIG |
| */ |
| |
| return 0; |
| } |
| |
| MODULE_ALIAS("platform:twl6030_reg"); |
| |
| static struct platform_driver twlreg_driver = { |
| .probe = twlreg_probe, |
| /* NOTE: short name, to work around driver model truncation of |
| * "twl_regulator.12" (and friends) to "twl_regulator.1". |
| */ |
| .driver = { |
| .name = "twl6030_reg", |
| .of_match_table = of_match_ptr(twl_of_match), |
| }, |
| }; |
| |
| static int __init twlreg_init(void) |
| { |
| return platform_driver_register(&twlreg_driver); |
| } |
| subsys_initcall(twlreg_init); |
| |
| static void __exit twlreg_exit(void) |
| { |
| platform_driver_unregister(&twlreg_driver); |
| } |
| module_exit(twlreg_exit) |
| |
| MODULE_DESCRIPTION("TWL6030 regulator driver"); |
| MODULE_LICENSE("GPL"); |