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- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * tps65910.c -- TI tps65910
- *
- * Copyright 2010 Texas Instruments Inc.
- *
- * Author: Graeme Gregory <gg@slimlogic.co.uk>
- * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
- */
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/err.h>
- #include <linux/of.h>
- #include <linux/platform_device.h>
- #include <linux/regulator/driver.h>
- #include <linux/regulator/machine.h>
- #include <linux/slab.h>
- #include <linux/gpio.h>
- #include <linux/mfd/tps65910.h>
- #include <linux/regulator/of_regulator.h>
- #define TPS65910_SUPPLY_STATE_ENABLED 0x1
- #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \
- TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 | \
- TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 | \
- TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
- /* supported VIO voltages in microvolts */
- static const unsigned int VIO_VSEL_table[] = {
- 1500000, 1800000, 2500000, 3300000,
- };
- /* VSEL tables for TPS65910 specific LDOs and dcdc's */
- /* supported VRTC voltages in microvolts */
- static const unsigned int VRTC_VSEL_table[] = {
- 1800000,
- };
- /* supported VDD3 voltages in microvolts */
- static const unsigned int VDD3_VSEL_table[] = {
- 5000000,
- };
- /* supported VDIG1 voltages in microvolts */
- static const unsigned int VDIG1_VSEL_table[] = {
- 1200000, 1500000, 1800000, 2700000,
- };
- /* supported VDIG2 voltages in microvolts */
- static const unsigned int VDIG2_VSEL_table[] = {
- 1000000, 1100000, 1200000, 1800000,
- };
- /* supported VPLL voltages in microvolts */
- static const unsigned int VPLL_VSEL_table[] = {
- 1000000, 1100000, 1800000, 2500000,
- };
- /* supported VDAC voltages in microvolts */
- static const unsigned int VDAC_VSEL_table[] = {
- 1800000, 2600000, 2800000, 2850000,
- };
- /* supported VAUX1 voltages in microvolts */
- static const unsigned int VAUX1_VSEL_table[] = {
- 1800000, 2500000, 2800000, 2850000,
- };
- /* supported VAUX2 voltages in microvolts */
- static const unsigned int VAUX2_VSEL_table[] = {
- 1800000, 2800000, 2900000, 3300000,
- };
- /* supported VAUX33 voltages in microvolts */
- static const unsigned int VAUX33_VSEL_table[] = {
- 1800000, 2000000, 2800000, 3300000,
- };
- /* supported VMMC voltages in microvolts */
- static const unsigned int VMMC_VSEL_table[] = {
- 1800000, 2800000, 3000000, 3300000,
- };
- /* supported BBCH voltages in microvolts */
- static const unsigned int VBB_VSEL_table[] = {
- 3000000, 2520000, 3150000, 5000000,
- };
- struct tps_info {
- const char *name;
- const char *vin_name;
- u8 n_voltages;
- const unsigned int *voltage_table;
- int enable_time_us;
- };
- static struct tps_info tps65910_regs[] = {
- {
- .name = "vrtc",
- .vin_name = "vcc7",
- .n_voltages = ARRAY_SIZE(VRTC_VSEL_table),
- .voltage_table = VRTC_VSEL_table,
- .enable_time_us = 2200,
- },
- {
- .name = "vio",
- .vin_name = "vccio",
- .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
- .voltage_table = VIO_VSEL_table,
- .enable_time_us = 350,
- },
- {
- .name = "vdd1",
- .vin_name = "vcc1",
- .enable_time_us = 350,
- },
- {
- .name = "vdd2",
- .vin_name = "vcc2",
- .enable_time_us = 350,
- },
- {
- .name = "vdd3",
- .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
- .voltage_table = VDD3_VSEL_table,
- .enable_time_us = 200,
- },
- {
- .name = "vdig1",
- .vin_name = "vcc6",
- .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
- .voltage_table = VDIG1_VSEL_table,
- .enable_time_us = 100,
- },
- {
- .name = "vdig2",
- .vin_name = "vcc6",
- .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
- .voltage_table = VDIG2_VSEL_table,
- .enable_time_us = 100,
- },
- {
- .name = "vpll",
- .vin_name = "vcc5",
- .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
- .voltage_table = VPLL_VSEL_table,
- .enable_time_us = 100,
- },
- {
- .name = "vdac",
- .vin_name = "vcc5",
- .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
- .voltage_table = VDAC_VSEL_table,
- .enable_time_us = 100,
- },
- {
- .name = "vaux1",
- .vin_name = "vcc4",
- .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
- .voltage_table = VAUX1_VSEL_table,
- .enable_time_us = 100,
- },
- {
- .name = "vaux2",
- .vin_name = "vcc4",
- .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
- .voltage_table = VAUX2_VSEL_table,
- .enable_time_us = 100,
- },
- {
- .name = "vaux33",
- .vin_name = "vcc3",
- .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
- .voltage_table = VAUX33_VSEL_table,
- .enable_time_us = 100,
- },
- {
- .name = "vmmc",
- .vin_name = "vcc3",
- .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
- .voltage_table = VMMC_VSEL_table,
- .enable_time_us = 100,
- },
- {
- .name = "vbb",
- .vin_name = "vcc7",
- .n_voltages = ARRAY_SIZE(VBB_VSEL_table),
- .voltage_table = VBB_VSEL_table,
- },
- };
- static struct tps_info tps65911_regs[] = {
- {
- .name = "vrtc",
- .vin_name = "vcc7",
- .enable_time_us = 2200,
- },
- {
- .name = "vio",
- .vin_name = "vccio",
- .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
- .voltage_table = VIO_VSEL_table,
- .enable_time_us = 350,
- },
- {
- .name = "vdd1",
- .vin_name = "vcc1",
- .n_voltages = 0x4C,
- .enable_time_us = 350,
- },
- {
- .name = "vdd2",
- .vin_name = "vcc2",
- .n_voltages = 0x4C,
- .enable_time_us = 350,
- },
- {
- .name = "vddctrl",
- .n_voltages = 0x44,
- .enable_time_us = 900,
- },
- {
- .name = "ldo1",
- .vin_name = "vcc6",
- .n_voltages = 0x33,
- .enable_time_us = 420,
- },
- {
- .name = "ldo2",
- .vin_name = "vcc6",
- .n_voltages = 0x33,
- .enable_time_us = 420,
- },
- {
- .name = "ldo3",
- .vin_name = "vcc5",
- .n_voltages = 0x1A,
- .enable_time_us = 230,
- },
- {
- .name = "ldo4",
- .vin_name = "vcc5",
- .n_voltages = 0x33,
- .enable_time_us = 230,
- },
- {
- .name = "ldo5",
- .vin_name = "vcc4",
- .n_voltages = 0x1A,
- .enable_time_us = 230,
- },
- {
- .name = "ldo6",
- .vin_name = "vcc3",
- .n_voltages = 0x1A,
- .enable_time_us = 230,
- },
- {
- .name = "ldo7",
- .vin_name = "vcc3",
- .n_voltages = 0x1A,
- .enable_time_us = 230,
- },
- {
- .name = "ldo8",
- .vin_name = "vcc3",
- .n_voltages = 0x1A,
- .enable_time_us = 230,
- },
- };
- #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
- static unsigned int tps65910_ext_sleep_control[] = {
- 0,
- EXT_CONTROL_REG_BITS(VIO, 1, 0),
- EXT_CONTROL_REG_BITS(VDD1, 1, 1),
- EXT_CONTROL_REG_BITS(VDD2, 1, 2),
- EXT_CONTROL_REG_BITS(VDD3, 1, 3),
- EXT_CONTROL_REG_BITS(VDIG1, 0, 1),
- EXT_CONTROL_REG_BITS(VDIG2, 0, 2),
- EXT_CONTROL_REG_BITS(VPLL, 0, 6),
- EXT_CONTROL_REG_BITS(VDAC, 0, 7),
- EXT_CONTROL_REG_BITS(VAUX1, 0, 3),
- EXT_CONTROL_REG_BITS(VAUX2, 0, 4),
- EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
- EXT_CONTROL_REG_BITS(VMMC, 0, 0),
- };
- static unsigned int tps65911_ext_sleep_control[] = {
- 0,
- EXT_CONTROL_REG_BITS(VIO, 1, 0),
- EXT_CONTROL_REG_BITS(VDD1, 1, 1),
- EXT_CONTROL_REG_BITS(VDD2, 1, 2),
- EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
- EXT_CONTROL_REG_BITS(LDO1, 0, 1),
- EXT_CONTROL_REG_BITS(LDO2, 0, 2),
- EXT_CONTROL_REG_BITS(LDO3, 0, 7),
- EXT_CONTROL_REG_BITS(LDO4, 0, 6),
- EXT_CONTROL_REG_BITS(LDO5, 0, 3),
- EXT_CONTROL_REG_BITS(LDO6, 0, 0),
- EXT_CONTROL_REG_BITS(LDO7, 0, 5),
- EXT_CONTROL_REG_BITS(LDO8, 0, 4),
- };
- struct tps65910_reg {
- struct regulator_desc *desc;
- struct tps65910 *mfd;
- struct regulator_dev **rdev;
- struct tps_info **info;
- int num_regulators;
- int mode;
- int (*get_ctrl_reg)(int);
- unsigned int *ext_sleep_control;
- unsigned int board_ext_control[TPS65910_NUM_REGS];
- };
- static int tps65910_get_ctrl_register(int id)
- {
- switch (id) {
- case TPS65910_REG_VRTC:
- return TPS65910_VRTC;
- case TPS65910_REG_VIO:
- return TPS65910_VIO;
- case TPS65910_REG_VDD1:
- return TPS65910_VDD1;
- case TPS65910_REG_VDD2:
- return TPS65910_VDD2;
- case TPS65910_REG_VDD3:
- return TPS65910_VDD3;
- case TPS65910_REG_VDIG1:
- return TPS65910_VDIG1;
- case TPS65910_REG_VDIG2:
- return TPS65910_VDIG2;
- case TPS65910_REG_VPLL:
- return TPS65910_VPLL;
- case TPS65910_REG_VDAC:
- return TPS65910_VDAC;
- case TPS65910_REG_VAUX1:
- return TPS65910_VAUX1;
- case TPS65910_REG_VAUX2:
- return TPS65910_VAUX2;
- case TPS65910_REG_VAUX33:
- return TPS65910_VAUX33;
- case TPS65910_REG_VMMC:
- return TPS65910_VMMC;
- case TPS65910_REG_VBB:
- return TPS65910_BBCH;
- default:
- return -EINVAL;
- }
- }
- static int tps65911_get_ctrl_register(int id)
- {
- switch (id) {
- case TPS65910_REG_VRTC:
- return TPS65910_VRTC;
- case TPS65910_REG_VIO:
- return TPS65910_VIO;
- case TPS65910_REG_VDD1:
- return TPS65910_VDD1;
- case TPS65910_REG_VDD2:
- return TPS65910_VDD2;
- case TPS65911_REG_VDDCTRL:
- return TPS65911_VDDCTRL;
- case TPS65911_REG_LDO1:
- return TPS65911_LDO1;
- case TPS65911_REG_LDO2:
- return TPS65911_LDO2;
- case TPS65911_REG_LDO3:
- return TPS65911_LDO3;
- case TPS65911_REG_LDO4:
- return TPS65911_LDO4;
- case TPS65911_REG_LDO5:
- return TPS65911_LDO5;
- case TPS65911_REG_LDO6:
- return TPS65911_LDO6;
- case TPS65911_REG_LDO7:
- return TPS65911_LDO7;
- case TPS65911_REG_LDO8:
- return TPS65911_LDO8;
- default:
- return -EINVAL;
- }
- }
- static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- struct tps65910 *mfd = pmic->mfd;
- int reg, value, id = rdev_get_id(dev);
- reg = pmic->get_ctrl_reg(id);
- if (reg < 0)
- return reg;
- switch (mode) {
- case REGULATOR_MODE_NORMAL:
- return tps65910_reg_update_bits(pmic->mfd, reg,
- LDO_ST_MODE_BIT | LDO_ST_ON_BIT,
- LDO_ST_ON_BIT);
- case REGULATOR_MODE_IDLE:
- value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
- return tps65910_reg_set_bits(mfd, reg, value);
- case REGULATOR_MODE_STANDBY:
- return tps65910_reg_clear_bits(mfd, reg, LDO_ST_ON_BIT);
- }
- return -EINVAL;
- }
- static unsigned int tps65910_get_mode(struct regulator_dev *dev)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- int ret, reg, value, id = rdev_get_id(dev);
- reg = pmic->get_ctrl_reg(id);
- if (reg < 0)
- return reg;
- ret = tps65910_reg_read(pmic->mfd, reg, &value);
- if (ret < 0)
- return ret;
- if (!(value & LDO_ST_ON_BIT))
- return REGULATOR_MODE_STANDBY;
- else if (value & LDO_ST_MODE_BIT)
- return REGULATOR_MODE_IDLE;
- else
- return REGULATOR_MODE_NORMAL;
- }
- static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- int ret, id = rdev_get_id(dev);
- int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
- switch (id) {
- case TPS65910_REG_VDD1:
- ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1_OP, &opvsel);
- if (ret < 0)
- return ret;
- ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1, &mult);
- if (ret < 0)
- return ret;
- mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
- ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1_SR, &srvsel);
- if (ret < 0)
- return ret;
- sr = opvsel & VDD1_OP_CMD_MASK;
- opvsel &= VDD1_OP_SEL_MASK;
- srvsel &= VDD1_SR_SEL_MASK;
- vselmax = 75;
- break;
- case TPS65910_REG_VDD2:
- ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2_OP, &opvsel);
- if (ret < 0)
- return ret;
- ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2, &mult);
- if (ret < 0)
- return ret;
- mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
- ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2_SR, &srvsel);
- if (ret < 0)
- return ret;
- sr = opvsel & VDD2_OP_CMD_MASK;
- opvsel &= VDD2_OP_SEL_MASK;
- srvsel &= VDD2_SR_SEL_MASK;
- vselmax = 75;
- break;
- case TPS65911_REG_VDDCTRL:
- ret = tps65910_reg_read(pmic->mfd, TPS65911_VDDCTRL_OP,
- &opvsel);
- if (ret < 0)
- return ret;
- ret = tps65910_reg_read(pmic->mfd, TPS65911_VDDCTRL_SR,
- &srvsel);
- if (ret < 0)
- return ret;
- sr = opvsel & VDDCTRL_OP_CMD_MASK;
- opvsel &= VDDCTRL_OP_SEL_MASK;
- srvsel &= VDDCTRL_SR_SEL_MASK;
- vselmax = 64;
- break;
- }
- /* multiplier 0 == 1 but 2,3 normal */
- if (!mult)
- mult = 1;
- if (sr) {
- /* normalise to valid range */
- if (srvsel < 3)
- srvsel = 3;
- if (srvsel > vselmax)
- srvsel = vselmax;
- return srvsel - 3;
- } else {
- /* normalise to valid range*/
- if (opvsel < 3)
- opvsel = 3;
- if (opvsel > vselmax)
- opvsel = vselmax;
- return opvsel - 3;
- }
- return -EINVAL;
- }
- static int tps65910_get_voltage_sel(struct regulator_dev *dev)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- int ret, reg, value, id = rdev_get_id(dev);
- reg = pmic->get_ctrl_reg(id);
- if (reg < 0)
- return reg;
- ret = tps65910_reg_read(pmic->mfd, reg, &value);
- if (ret < 0)
- return ret;
- switch (id) {
- case TPS65910_REG_VIO:
- case TPS65910_REG_VDIG1:
- case TPS65910_REG_VDIG2:
- case TPS65910_REG_VPLL:
- case TPS65910_REG_VDAC:
- case TPS65910_REG_VAUX1:
- case TPS65910_REG_VAUX2:
- case TPS65910_REG_VAUX33:
- case TPS65910_REG_VMMC:
- value &= LDO_SEL_MASK;
- value >>= LDO_SEL_SHIFT;
- break;
- case TPS65910_REG_VBB:
- value &= BBCH_BBSEL_MASK;
- value >>= BBCH_BBSEL_SHIFT;
- break;
- default:
- return -EINVAL;
- }
- return value;
- }
- static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
- {
- return dev->desc->volt_table[0];
- }
- static int tps65911_get_voltage_sel(struct regulator_dev *dev)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- int ret, id = rdev_get_id(dev);
- unsigned int value, reg;
- reg = pmic->get_ctrl_reg(id);
- ret = tps65910_reg_read(pmic->mfd, reg, &value);
- if (ret < 0)
- return ret;
- switch (id) {
- case TPS65911_REG_LDO1:
- case TPS65911_REG_LDO2:
- case TPS65911_REG_LDO4:
- value &= LDO1_SEL_MASK;
- value >>= LDO_SEL_SHIFT;
- break;
- case TPS65911_REG_LDO3:
- case TPS65911_REG_LDO5:
- case TPS65911_REG_LDO6:
- case TPS65911_REG_LDO7:
- case TPS65911_REG_LDO8:
- value &= LDO3_SEL_MASK;
- value >>= LDO_SEL_SHIFT;
- break;
- case TPS65910_REG_VIO:
- value &= LDO_SEL_MASK;
- value >>= LDO_SEL_SHIFT;
- break;
- default:
- return -EINVAL;
- }
- return value;
- }
- static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev,
- unsigned selector)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- int id = rdev_get_id(dev), vsel;
- int dcdc_mult = 0;
- switch (id) {
- case TPS65910_REG_VDD1:
- dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
- if (dcdc_mult == 1)
- dcdc_mult--;
- vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
- tps65910_reg_update_bits(pmic->mfd, TPS65910_VDD1,
- VDD1_VGAIN_SEL_MASK,
- dcdc_mult << VDD1_VGAIN_SEL_SHIFT);
- tps65910_reg_write(pmic->mfd, TPS65910_VDD1_OP, vsel);
- break;
- case TPS65910_REG_VDD2:
- dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
- if (dcdc_mult == 1)
- dcdc_mult--;
- vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
- tps65910_reg_update_bits(pmic->mfd, TPS65910_VDD2,
- VDD1_VGAIN_SEL_MASK,
- dcdc_mult << VDD2_VGAIN_SEL_SHIFT);
- tps65910_reg_write(pmic->mfd, TPS65910_VDD2_OP, vsel);
- break;
- case TPS65911_REG_VDDCTRL:
- vsel = selector + 3;
- tps65910_reg_write(pmic->mfd, TPS65911_VDDCTRL_OP, vsel);
- }
- return 0;
- }
- static int tps65910_set_voltage_sel(struct regulator_dev *dev,
- unsigned selector)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- int reg, id = rdev_get_id(dev);
- reg = pmic->get_ctrl_reg(id);
- if (reg < 0)
- return reg;
- switch (id) {
- case TPS65910_REG_VIO:
- case TPS65910_REG_VDIG1:
- case TPS65910_REG_VDIG2:
- case TPS65910_REG_VPLL:
- case TPS65910_REG_VDAC:
- case TPS65910_REG_VAUX1:
- case TPS65910_REG_VAUX2:
- case TPS65910_REG_VAUX33:
- case TPS65910_REG_VMMC:
- return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK,
- selector << LDO_SEL_SHIFT);
- case TPS65910_REG_VBB:
- return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK,
- selector << BBCH_BBSEL_SHIFT);
- }
- return -EINVAL;
- }
- static int tps65911_set_voltage_sel(struct regulator_dev *dev,
- unsigned selector)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- int reg, id = rdev_get_id(dev);
- reg = pmic->get_ctrl_reg(id);
- if (reg < 0)
- return reg;
- switch (id) {
- case TPS65911_REG_LDO1:
- case TPS65911_REG_LDO2:
- case TPS65911_REG_LDO4:
- return tps65910_reg_update_bits(pmic->mfd, reg, LDO1_SEL_MASK,
- selector << LDO_SEL_SHIFT);
- case TPS65911_REG_LDO3:
- case TPS65911_REG_LDO5:
- case TPS65911_REG_LDO6:
- case TPS65911_REG_LDO7:
- case TPS65911_REG_LDO8:
- return tps65910_reg_update_bits(pmic->mfd, reg, LDO3_SEL_MASK,
- selector << LDO_SEL_SHIFT);
- case TPS65910_REG_VIO:
- return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK,
- selector << LDO_SEL_SHIFT);
- case TPS65910_REG_VBB:
- return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK,
- selector << BBCH_BBSEL_SHIFT);
- }
- return -EINVAL;
- }
- static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
- unsigned selector)
- {
- int volt, mult = 1, id = rdev_get_id(dev);
- switch (id) {
- case TPS65910_REG_VDD1:
- case TPS65910_REG_VDD2:
- mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
- volt = VDD1_2_MIN_VOLT +
- (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
- break;
- case TPS65911_REG_VDDCTRL:
- volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
- break;
- default:
- BUG();
- return -EINVAL;
- }
- return volt * 100 * mult;
- }
- static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
- {
- struct tps65910_reg *pmic = rdev_get_drvdata(dev);
- int step_mv = 0, id = rdev_get_id(dev);
- switch (id) {
- case TPS65911_REG_LDO1:
- case TPS65911_REG_LDO2:
- case TPS65911_REG_LDO4:
- /* The first 5 values of the selector correspond to 1V */
- if (selector < 5)
- selector = 0;
- else
- selector -= 4;
- step_mv = 50;
- break;
- case TPS65911_REG_LDO3:
- case TPS65911_REG_LDO5:
- case TPS65911_REG_LDO6:
- case TPS65911_REG_LDO7:
- case TPS65911_REG_LDO8:
- /* The first 3 values of the selector correspond to 1V */
- if (selector < 3)
- selector = 0;
- else
- selector -= 2;
- step_mv = 100;
- break;
- case TPS65910_REG_VIO:
- return pmic->info[id]->voltage_table[selector];
- default:
- return -EINVAL;
- }
- return (LDO_MIN_VOLT + selector * step_mv) * 1000;
- }
- /* Regulator ops (except VRTC) */
- static struct regulator_ops tps65910_ops_dcdc = {
- .is_enabled = regulator_is_enabled_regmap,
- .enable = regulator_enable_regmap,
- .disable = regulator_disable_regmap,
- .set_mode = tps65910_set_mode,
- .get_mode = tps65910_get_mode,
- .get_voltage_sel = tps65910_get_voltage_dcdc_sel,
- .set_voltage_sel = tps65910_set_voltage_dcdc_sel,
- .set_voltage_time_sel = regulator_set_voltage_time_sel,
- .list_voltage = tps65910_list_voltage_dcdc,
- .map_voltage = regulator_map_voltage_ascend,
- };
- static struct regulator_ops tps65910_ops_vdd3 = {
- .is_enabled = regulator_is_enabled_regmap,
- .enable = regulator_enable_regmap,
- .disable = regulator_disable_regmap,
- .set_mode = tps65910_set_mode,
- .get_mode = tps65910_get_mode,
- .get_voltage = tps65910_get_voltage_vdd3,
- .list_voltage = regulator_list_voltage_table,
- .map_voltage = regulator_map_voltage_ascend,
- };
- static struct regulator_ops tps65910_ops_vbb = {
- .is_enabled = regulator_is_enabled_regmap,
- .enable = regulator_enable_regmap,
- .disable = regulator_disable_regmap,
- .set_mode = tps65910_set_mode,
- .get_mode = tps65910_get_mode,
- .get_voltage_sel = tps65910_get_voltage_sel,
- .set_voltage_sel = tps65910_set_voltage_sel,
- .list_voltage = regulator_list_voltage_table,
- .map_voltage = regulator_map_voltage_iterate,
- };
- static struct regulator_ops tps65910_ops = {
- .is_enabled = regulator_is_enabled_regmap,
- .enable = regulator_enable_regmap,
- .disable = regulator_disable_regmap,
- .set_mode = tps65910_set_mode,
- .get_mode = tps65910_get_mode,
- .get_voltage_sel = tps65910_get_voltage_sel,
- .set_voltage_sel = tps65910_set_voltage_sel,
- .list_voltage = regulator_list_voltage_table,
- .map_voltage = regulator_map_voltage_ascend,
- };
- static struct regulator_ops tps65911_ops = {
- .is_enabled = regulator_is_enabled_regmap,
- .enable = regulator_enable_regmap,
- .disable = regulator_disable_regmap,
- .set_mode = tps65910_set_mode,
- .get_mode = tps65910_get_mode,
- .get_voltage_sel = tps65911_get_voltage_sel,
- .set_voltage_sel = tps65911_set_voltage_sel,
- .list_voltage = tps65911_list_voltage,
- .map_voltage = regulator_map_voltage_ascend,
- };
- static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
- int id, int ext_sleep_config)
- {
- struct tps65910 *mfd = pmic->mfd;
- u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
- u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
- int ret;
- /*
- * Regulator can not be control from multiple external input EN1, EN2
- * and EN3 together.
- */
- if (ext_sleep_config & EXT_SLEEP_CONTROL) {
- int en_count;
- en_count = ((ext_sleep_config &
- TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
- en_count += ((ext_sleep_config &
- TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
- en_count += ((ext_sleep_config &
- TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
- en_count += ((ext_sleep_config &
- TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
- if (en_count > 1) {
- dev_err(mfd->dev,
- "External sleep control flag is not proper\n");
- return -EINVAL;
- }
- }
- pmic->board_ext_control[id] = ext_sleep_config;
- /* External EN1 control */
- if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
- ret = tps65910_reg_set_bits(mfd,
- TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
- else
- ret = tps65910_reg_clear_bits(mfd,
- TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
- if (ret < 0) {
- dev_err(mfd->dev,
- "Error in configuring external control EN1\n");
- return ret;
- }
- /* External EN2 control */
- if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
- ret = tps65910_reg_set_bits(mfd,
- TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
- else
- ret = tps65910_reg_clear_bits(mfd,
- TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
- if (ret < 0) {
- dev_err(mfd->dev,
- "Error in configuring external control EN2\n");
- return ret;
- }
- /* External EN3 control for TPS65910 LDO only */
- if ((tps65910_chip_id(mfd) == TPS65910) &&
- (id >= TPS65910_REG_VDIG1)) {
- if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
- ret = tps65910_reg_set_bits(mfd,
- TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
- else
- ret = tps65910_reg_clear_bits(mfd,
- TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
- if (ret < 0) {
- dev_err(mfd->dev,
- "Error in configuring external control EN3\n");
- return ret;
- }
- }
- /* Return if no external control is selected */
- if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
- /* Clear all sleep controls */
- ret = tps65910_reg_clear_bits(mfd,
- TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
- if (!ret)
- ret = tps65910_reg_clear_bits(mfd,
- TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
- if (ret < 0)
- dev_err(mfd->dev,
- "Error in configuring SLEEP register\n");
- return ret;
- }
- /*
- * For regulator that has separate operational and sleep register make
- * sure that operational is used and clear sleep register to turn
- * regulator off when external control is inactive
- */
- if ((id == TPS65910_REG_VDD1) ||
- (id == TPS65910_REG_VDD2) ||
- ((id == TPS65911_REG_VDDCTRL) &&
- (tps65910_chip_id(mfd) == TPS65911))) {
- int op_reg_add = pmic->get_ctrl_reg(id) + 1;
- int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
- int opvsel, srvsel;
- ret = tps65910_reg_read(pmic->mfd, op_reg_add, &opvsel);
- if (ret < 0)
- return ret;
- ret = tps65910_reg_read(pmic->mfd, sr_reg_add, &srvsel);
- if (ret < 0)
- return ret;
- if (opvsel & VDD1_OP_CMD_MASK) {
- u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
- ret = tps65910_reg_write(pmic->mfd, op_reg_add,
- reg_val);
- if (ret < 0) {
- dev_err(mfd->dev,
- "Error in configuring op register\n");
- return ret;
- }
- }
- ret = tps65910_reg_write(pmic->mfd, sr_reg_add, 0);
- if (ret < 0) {
- dev_err(mfd->dev, "Error in setting sr register\n");
- return ret;
- }
- }
- ret = tps65910_reg_clear_bits(mfd,
- TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
- if (!ret) {
- if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
- ret = tps65910_reg_set_bits(mfd,
- TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
- else
- ret = tps65910_reg_clear_bits(mfd,
- TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
- }
- if (ret < 0)
- dev_err(mfd->dev,
- "Error in configuring SLEEP register\n");
- return ret;
- }
- #ifdef CONFIG_OF
- static struct of_regulator_match tps65910_matches[] = {
- { .name = "vrtc", .driver_data = (void *) &tps65910_regs[0] },
- { .name = "vio", .driver_data = (void *) &tps65910_regs[1] },
- { .name = "vdd1", .driver_data = (void *) &tps65910_regs[2] },
- { .name = "vdd2", .driver_data = (void *) &tps65910_regs[3] },
- { .name = "vdd3", .driver_data = (void *) &tps65910_regs[4] },
- { .name = "vdig1", .driver_data = (void *) &tps65910_regs[5] },
- { .name = "vdig2", .driver_data = (void *) &tps65910_regs[6] },
- { .name = "vpll", .driver_data = (void *) &tps65910_regs[7] },
- { .name = "vdac", .driver_data = (void *) &tps65910_regs[8] },
- { .name = "vaux1", .driver_data = (void *) &tps65910_regs[9] },
- { .name = "vaux2", .driver_data = (void *) &tps65910_regs[10] },
- { .name = "vaux33", .driver_data = (void *) &tps65910_regs[11] },
- { .name = "vmmc", .driver_data = (void *) &tps65910_regs[12] },
- { .name = "vbb", .driver_data = (void *) &tps65910_regs[13] },
- };
- static struct of_regulator_match tps65911_matches[] = {
- { .name = "vrtc", .driver_data = (void *) &tps65911_regs[0] },
- { .name = "vio", .driver_data = (void *) &tps65911_regs[1] },
- { .name = "vdd1", .driver_data = (void *) &tps65911_regs[2] },
- { .name = "vdd2", .driver_data = (void *) &tps65911_regs[3] },
- { .name = "vddctrl", .driver_data = (void *) &tps65911_regs[4] },
- { .name = "ldo1", .driver_data = (void *) &tps65911_regs[5] },
- { .name = "ldo2", .driver_data = (void *) &tps65911_regs[6] },
- { .name = "ldo3", .driver_data = (void *) &tps65911_regs[7] },
- { .name = "ldo4", .driver_data = (void *) &tps65911_regs[8] },
- { .name = "ldo5", .driver_data = (void *) &tps65911_regs[9] },
- { .name = "ldo6", .driver_data = (void *) &tps65911_regs[10] },
- { .name = "ldo7", .driver_data = (void *) &tps65911_regs[11] },
- { .name = "ldo8", .driver_data = (void *) &tps65911_regs[12] },
- };
- static struct tps65910_board *tps65910_parse_dt_reg_data(
- struct platform_device *pdev,
- struct of_regulator_match **tps65910_reg_matches)
- {
- struct tps65910_board *pmic_plat_data;
- struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
- struct device_node *np, *regulators;
- struct of_regulator_match *matches;
- unsigned int prop;
- int idx = 0, ret, count;
- pmic_plat_data = devm_kzalloc(&pdev->dev, sizeof(*pmic_plat_data),
- GFP_KERNEL);
- if (!pmic_plat_data)
- return NULL;
- np = pdev->dev.parent->of_node;
- regulators = of_get_child_by_name(np, "regulators");
- if (!regulators) {
- dev_err(&pdev->dev, "regulator node not found\n");
- return NULL;
- }
- switch (tps65910_chip_id(tps65910)) {
- case TPS65910:
- count = ARRAY_SIZE(tps65910_matches);
- matches = tps65910_matches;
- break;
- case TPS65911:
- count = ARRAY_SIZE(tps65911_matches);
- matches = tps65911_matches;
- break;
- default:
- of_node_put(regulators);
- dev_err(&pdev->dev, "Invalid tps chip version\n");
- return NULL;
- }
- ret = of_regulator_match(&pdev->dev, regulators, matches, count);
- of_node_put(regulators);
- if (ret < 0) {
- dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
- ret);
- return NULL;
- }
- *tps65910_reg_matches = matches;
- for (idx = 0; idx < count; idx++) {
- if (!matches[idx].of_node)
- continue;
- pmic_plat_data->tps65910_pmic_init_data[idx] =
- matches[idx].init_data;
- ret = of_property_read_u32(matches[idx].of_node,
- "ti,regulator-ext-sleep-control", &prop);
- if (!ret)
- pmic_plat_data->regulator_ext_sleep_control[idx] = prop;
- }
- return pmic_plat_data;
- }
- #else
- static inline struct tps65910_board *tps65910_parse_dt_reg_data(
- struct platform_device *pdev,
- struct of_regulator_match **tps65910_reg_matches)
- {
- *tps65910_reg_matches = NULL;
- return NULL;
- }
- #endif
- static int tps65910_probe(struct platform_device *pdev)
- {
- struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
- struct regulator_config config = { };
- struct tps_info *info;
- struct regulator_dev *rdev;
- struct tps65910_reg *pmic;
- struct tps65910_board *pmic_plat_data;
- struct of_regulator_match *tps65910_reg_matches = NULL;
- int i, err;
- pmic_plat_data = dev_get_platdata(tps65910->dev);
- if (!pmic_plat_data && tps65910->dev->of_node)
- pmic_plat_data = tps65910_parse_dt_reg_data(pdev,
- &tps65910_reg_matches);
- if (!pmic_plat_data) {
- dev_err(&pdev->dev, "Platform data not found\n");
- return -EINVAL;
- }
- pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
- if (!pmic)
- return -ENOMEM;
- pmic->mfd = tps65910;
- platform_set_drvdata(pdev, pmic);
- /* Give control of all register to control port */
- err = tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL,
- DEVCTRL_SR_CTL_I2C_SEL_MASK);
- if (err < 0)
- return err;
- switch (tps65910_chip_id(tps65910)) {
- case TPS65910:
- BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65910_regs));
- pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
- pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
- pmic->ext_sleep_control = tps65910_ext_sleep_control;
- info = tps65910_regs;
- /* Work around silicon erratum SWCZ010: output programmed
- * voltage level can go higher than expected or crash
- * Workaround: use no synchronization of DCDC clocks
- */
- tps65910_reg_clear_bits(pmic->mfd, TPS65910_DCDCCTRL,
- DCDCCTRL_DCDCCKSYNC_MASK);
- break;
- case TPS65911:
- BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65911_regs));
- pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
- pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
- pmic->ext_sleep_control = tps65911_ext_sleep_control;
- info = tps65911_regs;
- break;
- default:
- dev_err(&pdev->dev, "Invalid tps chip version\n");
- return -ENODEV;
- }
- pmic->desc = devm_kcalloc(&pdev->dev,
- pmic->num_regulators,
- sizeof(struct regulator_desc),
- GFP_KERNEL);
- if (!pmic->desc)
- return -ENOMEM;
- pmic->info = devm_kcalloc(&pdev->dev,
- pmic->num_regulators,
- sizeof(struct tps_info *),
- GFP_KERNEL);
- if (!pmic->info)
- return -ENOMEM;
- pmic->rdev = devm_kcalloc(&pdev->dev,
- pmic->num_regulators,
- sizeof(struct regulator_dev *),
- GFP_KERNEL);
- if (!pmic->rdev)
- return -ENOMEM;
- for (i = 0; i < pmic->num_regulators; i++, info++) {
- /* Register the regulators */
- pmic->info[i] = info;
- pmic->desc[i].name = info->name;
- pmic->desc[i].supply_name = info->vin_name;
- pmic->desc[i].id = i;
- pmic->desc[i].n_voltages = info->n_voltages;
- pmic->desc[i].enable_time = info->enable_time_us;
- if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
- pmic->desc[i].ops = &tps65910_ops_dcdc;
- pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
- VDD1_2_NUM_VOLT_COARSE;
- pmic->desc[i].ramp_delay = 12500;
- } else if (i == TPS65910_REG_VDD3) {
- if (tps65910_chip_id(tps65910) == TPS65910) {
- pmic->desc[i].ops = &tps65910_ops_vdd3;
- pmic->desc[i].volt_table = info->voltage_table;
- } else {
- pmic->desc[i].ops = &tps65910_ops_dcdc;
- pmic->desc[i].ramp_delay = 5000;
- }
- } else if (i == TPS65910_REG_VBB &&
- tps65910_chip_id(tps65910) == TPS65910) {
- pmic->desc[i].ops = &tps65910_ops_vbb;
- pmic->desc[i].volt_table = info->voltage_table;
- } else {
- if (tps65910_chip_id(tps65910) == TPS65910) {
- pmic->desc[i].ops = &tps65910_ops;
- pmic->desc[i].volt_table = info->voltage_table;
- } else {
- pmic->desc[i].ops = &tps65911_ops;
- }
- }
- err = tps65910_set_ext_sleep_config(pmic, i,
- pmic_plat_data->regulator_ext_sleep_control[i]);
- /*
- * Failing on regulator for configuring externally control
- * is not a serious issue, just throw warning.
- */
- if (err < 0)
- dev_warn(tps65910->dev,
- "Failed to initialise ext control config\n");
- pmic->desc[i].type = REGULATOR_VOLTAGE;
- pmic->desc[i].owner = THIS_MODULE;
- pmic->desc[i].enable_reg = pmic->get_ctrl_reg(i);
- pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED;
- config.dev = tps65910->dev;
- config.init_data = pmic_plat_data->tps65910_pmic_init_data[i];
- config.driver_data = pmic;
- config.regmap = tps65910->regmap;
- if (tps65910_reg_matches)
- config.of_node = tps65910_reg_matches[i].of_node;
- rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
- &config);
- if (IS_ERR(rdev)) {
- dev_err(tps65910->dev,
- "failed to register %s regulator\n",
- pdev->name);
- return PTR_ERR(rdev);
- }
- /* Save regulator for cleanup */
- pmic->rdev[i] = rdev;
- }
- return 0;
- }
- static void tps65910_shutdown(struct platform_device *pdev)
- {
- struct tps65910_reg *pmic = platform_get_drvdata(pdev);
- int i;
- /*
- * Before bootloader jumps to kernel, it makes sure that required
- * external control signals are in desired state so that given rails
- * can be configure accordingly.
- * If rails are configured to be controlled from external control
- * then before shutting down/rebooting the system, the external
- * control configuration need to be remove from the rails so that
- * its output will be available as per register programming even
- * if external controls are removed. This is require when the POR
- * value of the control signals are not in active state and before
- * bootloader initializes it, the system requires the rail output
- * to be active for booting.
- */
- for (i = 0; i < pmic->num_regulators; i++) {
- int err;
- if (!pmic->rdev[i])
- continue;
- err = tps65910_set_ext_sleep_config(pmic, i, 0);
- if (err < 0)
- dev_err(&pdev->dev,
- "Error in clearing external control\n");
- }
- }
- static struct platform_driver tps65910_driver = {
- .driver = {
- .name = "tps65910-pmic",
- },
- .probe = tps65910_probe,
- .shutdown = tps65910_shutdown,
- };
- static int __init tps65910_init(void)
- {
- return platform_driver_register(&tps65910_driver);
- }
- subsys_initcall(tps65910_init);
- static void __exit tps65910_cleanup(void)
- {
- platform_driver_unregister(&tps65910_driver);
- }
- module_exit(tps65910_cleanup);
- MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
- MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
- MODULE_LICENSE("GPL v2");
- MODULE_ALIAS("platform:tps65910-pmic");
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