| /* |
| * tps65910.c -- TI tps65910 |
| * |
| * Copyright 2010 Texas Instruments Inc. |
| * |
| * Author: Graeme Gregory <gg@slimlogic.co.uk> |
| * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> |
| * |
| * 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/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/err.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) { |
| dev_err(&pdev->dev, "Failure to alloc pdata for regulators.\n"); |
| return NULL; |
| } |
| |
| np = of_node_get(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].init_data || !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_init_data *reg_data; |
| 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) { |
| dev_err(&pdev->dev, "Memory allocation failed for pmic\n"); |
| return -ENOMEM; |
| } |
| |
| pmic->mfd = tps65910; |
| platform_set_drvdata(pdev, pmic); |
| |
| /* Give control of all register to control port */ |
| tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL, |
| DEVCTRL_SR_CTL_I2C_SEL_MASK); |
| |
| switch (tps65910_chip_id(tps65910)) { |
| case TPS65910: |
| 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; |
| break; |
| case TPS65911: |
| 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_kzalloc(&pdev->dev, pmic->num_regulators * |
| sizeof(struct regulator_desc), GFP_KERNEL); |
| if (!pmic->desc) { |
| dev_err(&pdev->dev, "Memory alloc fails for desc\n"); |
| return -ENOMEM; |
| } |
| |
| pmic->info = devm_kzalloc(&pdev->dev, pmic->num_regulators * |
| sizeof(struct tps_info *), GFP_KERNEL); |
| if (!pmic->info) { |
| dev_err(&pdev->dev, "Memory alloc fails for info\n"); |
| return -ENOMEM; |
| } |
| |
| pmic->rdev = devm_kzalloc(&pdev->dev, pmic->num_regulators * |
| sizeof(struct regulator_dev *), GFP_KERNEL); |
| if (!pmic->rdev) { |
| dev_err(&pdev->dev, "Memory alloc fails for rdev\n"); |
| return -ENOMEM; |
| } |
| |
| for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS; |
| i++, info++) { |
| |
| reg_data = pmic_plat_data->tps65910_pmic_init_data[i]; |
| |
| /* Regulator API handles empty constraints but not NULL |
| * constraints */ |
| if (!reg_data) |
| continue; |
| |
| /* 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 = reg_data; |
| 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", |
| .owner = THIS_MODULE, |
| }, |
| .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"); |
