/* * 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, }; 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, }, }; 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; 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; 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); } 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); } 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 = { .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 settting 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] }, }; 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_find_node_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 (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");