Regulator: Add TPS6507x regulator driver

Adding support for TI TPS6507x regulator driver

Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 713 insertions, 0 deletions

diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
new file mode 100644
index 000000000000..1aa363695124
--- /dev/null
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -0,0 +1,713 @@
+/*
+ * tps6507x-regulator.c
+ *
+ * Regulator driver for TPS65073 PMIC
+ *
+ * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#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/i2c.h>
+#include <linux/delay.h>
+
+/* Register definitions */
+#define TPS6507X_REG_PPATH1                             0X01
+#define TPS6507X_REG_INT                                0X02
+#define TPS6507X_REG_CHGCONFIG0                         0X03
+#define TPS6507X_REG_CHGCONFIG1                         0X04
+#define TPS6507X_REG_CHGCONFIG2                         0X05
+#define TPS6507X_REG_CHGCONFIG3                         0X06
+#define TPS6507X_REG_REG_ADCONFIG                       0X07
+#define TPS6507X_REG_TSCMODE                            0X08
+#define TPS6507X_REG_ADRESULT_1                         0X09
+#define TPS6507X_REG_ADRESULT_2                         0X0A
+#define TPS6507X_REG_PGOOD                              0X0B
+#define TPS6507X_REG_PGOODMASK                          0X0C
+#define TPS6507X_REG_CON_CTRL1                          0X0D
+#define TPS6507X_REG_CON_CTRL2                          0X0E
+#define TPS6507X_REG_CON_CTRL3                          0X0F
+#define TPS6507X_REG_DEFDCDC1                           0X10
+#define TPS6507X_REG_DEFDCDC2_LOW                       0X11
+#define TPS6507X_REG_DEFDCDC2_HIGH                      0X12
+#define TPS6507X_REG_DEFDCDC3_LOW                       0X13
+#define TPS6507X_REG_DEFDCDC3_HIGH                      0X14
+#define TPS6507X_REG_DEFSLEW                            0X15
+#define TPS6507X_REG_LDO_CTRL1                          0X16
+#define TPS6507X_REG_DEFLDO2                            0X17
+#define TPS6507X_REG_WLED_CTRL1                         0X18
+#define TPS6507X_REG_WLED_CTRL2                         0X19
+
+/* CON_CTRL1 bitfields */
+#define TPS6507X_CON_CTRL1_DCDC1_ENABLE         BIT(4)
+#define TPS6507X_CON_CTRL1_DCDC2_ENABLE         BIT(3)
+#define TPS6507X_CON_CTRL1_DCDC3_ENABLE         BIT(2)
+#define TPS6507X_CON_CTRL1_LDO1_ENABLE          BIT(1)
+#define TPS6507X_CON_CTRL1_LDO2_ENABLE          BIT(0)
+
+/* DEFDCDC1 bitfields */
+#define TPS6507X_DEFDCDC1_DCDC1_EXT_ADJ_EN      BIT(7)
+#define TPS6507X_DEFDCDC1_DCDC1_MASK            0X3F
+
+/* DEFDCDC2_LOW bitfields */
+#define TPS6507X_DEFDCDC2_LOW_DCDC2_MASK        0X3F
+
+/* DEFDCDC2_HIGH bitfields */
+#define TPS6507X_DEFDCDC2_HIGH_DCDC2_MASK       0X3F
+
+/* DEFDCDC3_LOW bitfields */
+#define TPS6507X_DEFDCDC3_LOW_DCDC3_MASK        0X3F
+
+/* DEFDCDC3_HIGH bitfields */
+#define TPS6507X_DEFDCDC3_HIGH_DCDC3_MASK       0X3F
+
+/* TPS6507X_REG_LDO_CTRL1 bitfields */
+#define TPS6507X_REG_LDO_CTRL1_LDO1_MASK        0X0F
+
+/* TPS6507X_REG_DEFLDO2 bitfields */
+#define TPS6507X_REG_DEFLDO2_LDO2_MASK          0X3F
+
+/* VDCDC MASK */
+#define TPS6507X_DEFDCDCX_DCDC_MASK             0X3F
+
+/* DCDC's */
+#define TPS6507X_DCDC_1                         0
+#define TPS6507X_DCDC_2                         1
+#define TPS6507X_DCDC_3                         2
+/* LDOs */
+#define TPS6507X_LDO_1                          3
+#define TPS6507X_LDO_2                          4
+
+#define TPS6507X_MAX_REG_ID                     TPS6507X_LDO_2
+
+/* Number of step-down converters available */
+#define TPS6507X_NUM_DCDC                       3
+/* Number of LDO voltage regulators  available */
+#define TPS6507X_NUM_LDO                        2
+/* Number of total regulators available */
+#define TPS6507X_NUM_REGULATOR          (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
+
+/* Supported voltage values for regulators (in milliVolts) */
+static const u16 VDCDCx_VSEL_table[] = {
+        725, 750, 775, 800,
+        825, 850, 875, 900,
+        925, 950, 975, 1000,
+        1025, 1050, 1075, 1100,
+        1125, 1150, 1175, 1200,
+        1225, 1250, 1275, 1300,
+        1325, 1350, 1375, 1400,
+        1425, 1450, 1475, 1500,
+        1550, 1600, 1650, 1700,
+        1750, 1800, 1850, 1900,
+        1950, 2000, 2050, 2100,
+        2150, 2200, 2250, 2300,
+        2350, 2400, 2450, 2500,
+        2550, 2600, 2650, 2700,
+        2750, 2800, 2850, 2900,
+        3000, 3100, 3200, 3300,
+};
+
+static const u16 LDO1_VSEL_table[] = {
+        1000, 1100, 1200, 1250,
+        1300, 1350, 1400, 1500,
+        1600, 1800, 2500, 2750,
+        2800, 3000, 3100, 3300,
+};
+
+static const u16 LDO2_VSEL_table[] = {
+        725, 750, 775, 800,
+        825, 850, 875, 900,
+        925, 950, 975, 1000,
+        1025, 1050, 1075, 1100,
+        1125, 1150, 1175, 1200,
+        1225, 1250, 1275, 1300,
+        1325, 1350, 1375, 1400,
+        1425, 1450, 1475, 1500,
+        1550, 1600, 1650, 1700,
+        1750, 1800, 1850, 1900,
+        1950, 2000, 2050, 2100,
+        2150, 2200, 2250, 2300,
+        2350, 2400, 2450, 2500,
+        2550, 2600, 2650, 2700,
+        2750, 2800, 2850, 2900,
+        3000, 3100, 3200, 3300,
+};
+
+static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDCx_VSEL_table),
+                                ARRAY_SIZE(VDCDCx_VSEL_table),
+                                ARRAY_SIZE(VDCDCx_VSEL_table),
+                                ARRAY_SIZE(LDO1_VSEL_table),
+                                ARRAY_SIZE(LDO2_VSEL_table)};
+
+struct tps_info {
+        const char *name;
+        unsigned min_uV;
+        unsigned max_uV;
+        u8 table_len;
+        const u16 *table;
+};
+
+struct tps_pmic {
+        struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
+        struct i2c_client *client;
+        struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR];
+        const struct tps_info *info[TPS6507X_NUM_REGULATOR];
+        struct mutex io_lock;
+};
+
+static inline int tps_6507x_read(struct tps_pmic *tps, u8 reg)
+{
+        return i2c_smbus_read_byte_data(tps->client, reg);
+}
+
+static inline int tps_6507x_write(struct tps_pmic *tps, u8 reg, u8 val)
+{
+        return i2c_smbus_write_byte_data(tps->client, reg, val);
+}
+
+static int tps_6507x_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
+{
+        int err, data;
+
+        mutex_lock(&tps->io_lock);
+
+        data = tps_6507x_read(tps, reg);
+        if (data < 0) {
+                dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+                err = data;
+                goto out;
+        }
+
+        data |= mask;
+        err = tps_6507x_write(tps, reg, data);
+        if (err)
+                dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+        mutex_unlock(&tps->io_lock);
+        return err;
+}
+
+static int tps_6507x_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask)
+{
+        int err, data;
+
+        mutex_lock(&tps->io_lock);
+
+        data = tps_6507x_read(tps, reg);
+        if (data < 0) {
+                dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+                err = data;
+                goto out;
+        }
+
+        data &= ~mask;
+        err = tps_6507x_write(tps, reg, data);
+        if (err)
+                dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+        mutex_unlock(&tps->io_lock);
+        return err;
+}
+
+static int tps_6507x_reg_read(struct tps_pmic *tps, u8 reg)
+{
+        int data;
+
+        mutex_lock(&tps->io_lock);
+
+        data = tps_6507x_read(tps, reg);
+        if (data < 0)
+                dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+
+        mutex_unlock(&tps->io_lock);
+        return data;
+}
+
+static int tps_6507x_reg_write(struct tps_pmic *tps, u8 reg, u8 val)
+{
+        int err;
+
+        mutex_lock(&tps->io_lock);
+
+        err = tps_6507x_write(tps, reg, val);
+        if (err < 0)
+                dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+
+        mutex_unlock(&tps->io_lock);
+        return err;
+}
+
+static int tps6507x_dcdc_is_enabled(struct regulator_dev *dev)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int data, dcdc = rdev_get_id(dev);
+        u8 shift;
+
+        if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
+                return -EINVAL;
+
+        shift = TPS6507X_MAX_REG_ID - dcdc;
+        data = tps_6507x_reg_read(tps, TPS6507X_REG_CON_CTRL1);
+
+        if (data < 0)
+                return data;
+        else
+                return (data & 1<<shift) ? 1 : 0;
+}
+
+static int tps6507x_ldo_is_enabled(struct regulator_dev *dev)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int data, ldo = rdev_get_id(dev);
+        u8 shift;
+
+        if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
+                return -EINVAL;
+
+        shift = TPS6507X_MAX_REG_ID - ldo;
+        data = tps_6507x_reg_read(tps, TPS6507X_REG_CON_CTRL1);
+
+        if (data < 0)
+                return data;
+        else
+                return (data & 1<<shift) ? 1 : 0;
+}
+
+static int tps6507x_dcdc_enable(struct regulator_dev *dev)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int dcdc = rdev_get_id(dev);
+        u8 shift;
+
+        if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
+                return -EINVAL;
+
+        shift = TPS6507X_MAX_REG_ID - dcdc;
+        return tps_6507x_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
+}
+
+static int tps6507x_dcdc_disable(struct regulator_dev *dev)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int dcdc = rdev_get_id(dev);
+        u8 shift;
+
+        if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
+                return -EINVAL;
+
+        shift = TPS6507X_MAX_REG_ID - dcdc;
+        return tps_6507x_clear_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
+}
+
+static int tps6507x_ldo_enable(struct regulator_dev *dev)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int ldo = rdev_get_id(dev);
+        u8 shift;
+
+        if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
+                return -EINVAL;
+
+        shift = TPS6507X_MAX_REG_ID - ldo;
+        return tps_6507x_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
+}
+
+static int tps6507x_ldo_disable(struct regulator_dev *dev)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int ldo = rdev_get_id(dev);
+        u8 shift;
+
+        if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
+                return -EINVAL;
+
+        shift = TPS6507X_MAX_REG_ID - ldo;
+        return tps_6507x_clear_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
+}
+
+static int tps6507x_dcdc_get_voltage(struct regulator_dev *dev)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int data, dcdc = rdev_get_id(dev);
+        u8 reg;
+
+        switch (dcdc) {
+        case TPS6507X_DCDC_1:
+                reg = TPS6507X_REG_DEFDCDC1;
+                break;
+        case TPS6507X_DCDC_2:
+                reg = TPS6507X_REG_DEFDCDC2_LOW;
+                break;
+        case TPS6507X_DCDC_3:
+                reg = TPS6507X_REG_DEFDCDC3_LOW;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        data = tps_6507x_reg_read(tps, reg);
+        if (data < 0)
+                return data;
+
+        data &= TPS6507X_DEFDCDCX_DCDC_MASK;
+        return tps->info[dcdc]->table[data] * 1000;
+}
+
+static int tps6507x_dcdc_set_voltage(struct regulator_dev *dev,
+                                int min_uV, int max_uV)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int data, vsel, dcdc = rdev_get_id(dev);
+        u8 reg;
+
+        switch (dcdc) {
+        case TPS6507X_DCDC_1:
+                reg = TPS6507X_REG_DEFDCDC1;
+                break;
+        case TPS6507X_DCDC_2:
+                reg = TPS6507X_REG_DEFDCDC2_LOW;
+                break;
+        case TPS6507X_DCDC_3:
+                reg = TPS6507X_REG_DEFDCDC3_LOW;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        if (min_uV < tps->info[dcdc]->min_uV
+                || min_uV > tps->info[dcdc]->max_uV)
+                return -EINVAL;
+        if (max_uV < tps->info[dcdc]->min_uV
+                || max_uV > tps->info[dcdc]->max_uV)
+                return -EINVAL;
+
+        for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) {
+                int mV = tps->info[dcdc]->table[vsel];
+                int uV = mV * 1000;
+
+                /* Break at the first in-range value */
+                if (min_uV <= uV && uV <= max_uV)
+                        break;
+        }
+
+        /* write to the register in case we found a match */
+        if (vsel == tps->info[dcdc]->table_len)
+                return -EINVAL;
+
+        data = tps_6507x_reg_read(tps, reg);
+        if (data < 0)
+                return data;
+
+        data &= ~TPS6507X_DEFDCDCX_DCDC_MASK;
+        data |= vsel;
+
+        return tps_6507x_reg_write(tps, reg, data);
+}
+
+static int tps6507x_ldo_get_voltage(struct regulator_dev *dev)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int data, ldo = rdev_get_id(dev);
+        u8 reg, mask;
+
+        if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
+                return -EINVAL;
+        else {
+                reg = (ldo == TPS6507X_LDO_1 ?
+                        TPS6507X_REG_LDO_CTRL1 : TPS6507X_REG_DEFLDO2);
+                mask = (ldo == TPS6507X_LDO_1 ?
+                        TPS6507X_REG_LDO_CTRL1_LDO1_MASK :
+                                TPS6507X_REG_DEFLDO2_LDO2_MASK);
+        }
+
+        data = tps_6507x_reg_read(tps, reg);
+        if (data < 0)
+                return data;
+
+        data &= mask;
+        return tps->info[ldo]->table[data] * 1000;
+}
+
+static int tps6507x_ldo_set_voltage(struct regulator_dev *dev,
+                                int min_uV, int max_uV)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int data, vsel, ldo = rdev_get_id(dev);
+        u8 reg, mask;
+
+        if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
+                return -EINVAL;
+        else {
+                reg = (ldo == TPS6507X_LDO_1 ?
+                        TPS6507X_REG_LDO_CTRL1 : TPS6507X_REG_DEFLDO2);
+                mask = (ldo == TPS6507X_LDO_1 ?
+                        TPS6507X_REG_LDO_CTRL1_LDO1_MASK :
+                                TPS6507X_REG_DEFLDO2_LDO2_MASK);
+        }
+
+        if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV)
+                return -EINVAL;
+        if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV)
+                return -EINVAL;
+
+        for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) {
+                int mV = tps->info[ldo]->table[vsel];
+                int uV = mV * 1000;
+
+                /* Break at the first in-range value */
+                if (min_uV <= uV && uV <= max_uV)
+                        break;
+        }
+
+        if (vsel == tps->info[ldo]->table_len)
+                return -EINVAL;
+
+        data = tps_6507x_reg_read(tps, reg);
+        if (data < 0)
+                return data;
+
+        data &= ~mask;
+        data |= vsel;
+
+        return tps_6507x_reg_write(tps, reg, data);
+}
+
+static int tps6507x_dcdc_list_voltage(struct regulator_dev *dev,
+                                        unsigned selector)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int dcdc = rdev_get_id(dev);
+
+        if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
+                return -EINVAL;
+
+        if (selector >= tps->info[dcdc]->table_len)
+                return -EINVAL;
+        else
+                return tps->info[dcdc]->table[selector] * 1000;
+}
+
+static int tps6507x_ldo_list_voltage(struct regulator_dev *dev,
+                                        unsigned selector)
+{
+        struct tps_pmic *tps = rdev_get_drvdata(dev);
+        int ldo = rdev_get_id(dev);
+
+        if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
+                return -EINVAL;
+
+        if (selector >= tps->info[ldo]->table_len)
+                return -EINVAL;
+        else
+                return tps->info[ldo]->table[selector] * 1000;
+}
+
+/* Operations permitted on VDCDCx */
+static struct regulator_ops tps6507x_dcdc_ops = {
+        .is_enabled = tps6507x_dcdc_is_enabled,
+        .enable = tps6507x_dcdc_enable,
+        .disable = tps6507x_dcdc_disable,
+        .get_voltage = tps6507x_dcdc_get_voltage,
+        .set_voltage = tps6507x_dcdc_set_voltage,
+        .list_voltage = tps6507x_dcdc_list_voltage,
+};
+
+/* Operations permitted on LDOx */
+static struct regulator_ops tps6507x_ldo_ops = {
+        .is_enabled = tps6507x_ldo_is_enabled,
+        .enable = tps6507x_ldo_enable,
+        .disable = tps6507x_ldo_disable,
+        .get_voltage = tps6507x_ldo_get_voltage,
+        .set_voltage = tps6507x_ldo_set_voltage,
+        .list_voltage = tps6507x_ldo_list_voltage,
+};
+
+static
+int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+        static int desc_id;
+        const struct tps_info *info = (void *)id->driver_data;
+        struct regulator_init_data *init_data;
+        struct regulator_dev *rdev;
+        struct tps_pmic *tps;
+        int i;
+
+        if (!i2c_check_functionality(client->adapter,
+                                I2C_FUNC_SMBUS_BYTE_DATA))
+                return -EIO;
+
+        /**
+         * init_data points to array of regulator_init structures
+         * coming from the board-evm file.
+         */
+        init_data = client->dev.platform_data;
+
+        if (!init_data)
+                return -EIO;
+
+        tps = kzalloc(sizeof(*tps), GFP_KERNEL);
+        if (!tps)
+                return -ENOMEM;
+
+        mutex_init(&tps->io_lock);
+
+        /* common for all regulators */
+        tps->client = client;
+
+        for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) {
+                /* Register the regulators */
+                tps->info[i] = info;
+                tps->desc[i].name = info->name;
+                tps->desc[i].id = desc_id++;
+                tps->desc[i].n_voltages = num_voltages[i];
+                tps->desc[i].ops = (i > TPS6507X_DCDC_3 ?
+                                &tps6507x_ldo_ops : &tps6507x_dcdc_ops);
+                tps->desc[i].type = REGULATOR_VOLTAGE;
+                tps->desc[i].owner = THIS_MODULE;
+
+                rdev = regulator_register(&tps->desc[i],
+                                        &client->dev, init_data, tps);
+                if (IS_ERR(rdev)) {
+                        dev_err(&client->dev, "failed to register %s\n",
+                                id->name);
+
+                        /* Unregister */
+                        while (i)
+                                regulator_unregister(tps->rdev[--i]);
+
+                        tps->client = NULL;
+
+                        /* clear the client data in i2c */
+                        i2c_set_clientdata(client, NULL);
+
+                        kfree(tps);
+                        return PTR_ERR(rdev);
+                }
+
+                /* Save regulator for cleanup */
+                tps->rdev[i] = rdev;
+        }
+
+        i2c_set_clientdata(client, tps);
+
+        return 0;
+}
+
+/**
+ * tps_6507x_remove - TPS6507x driver i2c remove handler
+ * @client: i2c driver client device structure
+ *
+ * Unregister TPS driver as an i2c client device driver
+ */
+static int __devexit tps_6507x_remove(struct i2c_client *client)
+{
+        struct tps_pmic *tps = i2c_get_clientdata(client);
+        int i;
+
+        for (i = 0; i < TPS6507X_NUM_REGULATOR; i++)
+                regulator_unregister(tps->rdev[i]);
+
+        tps->client = NULL;
+
+        /* clear the client data in i2c */
+        i2c_set_clientdata(client, NULL);
+        kfree(tps);
+
+        return 0;
+}
+
+static const struct tps_info tps6507x_regs[] = {
+        {
+                .name = "VDCDC1",
+                .min_uV = 725000,
+                .max_uV = 3300000,
+                .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+                .table = VDCDCx_VSEL_table,
+        },
+        {
+                .name = "VDCDC2",
+                .min_uV = 725000,
+                .max_uV = 3300000,
+                .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+                .table = VDCDCx_VSEL_table,
+        },
+        {
+                .name = "VDCDC3",
+                .min_uV = 725000,
+                .max_uV = 3300000,
+                .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+                .table = VDCDCx_VSEL_table,
+        },
+        {
+                .name = "LDO1",
+                .min_uV = 1000000,
+                .max_uV = 3300000,
+                .table_len = ARRAY_SIZE(LDO1_VSEL_table),
+                .table = LDO1_VSEL_table,
+        },
+        {
+                .name = "LDO2",
+                .min_uV = 725000,
+                .max_uV = 3300000,
+                .table_len = ARRAY_SIZE(LDO2_VSEL_table),
+                .table = LDO2_VSEL_table,
+        },
+};
+
+static const struct i2c_device_id tps_6507x_id = {
+        .name = "tps6507x",
+        .driver_data = (unsigned long) &tps6507x_regs[0],
+};
+MODULE_DEVICE_TABLE(i2c, tps_6507x_id);
+
+static struct i2c_driver tps_6507x_i2c_driver = {
+        .driver = {
+                .name = "tps6507x",
+                .owner = THIS_MODULE,
+        },
+        .probe = tps_6507x_probe,
+        .remove = __devexit_p(tps_6507x_remove),
+        .id_table = &tps_6507x_id,
+};
+
+/**
+ * tps_6507x_init
+ *
+ * Module init function
+ */
+static int __init tps_6507x_init(void)
+{
+        return i2c_add_driver(&tps_6507x_i2c_driver);
+}
+subsys_initcall(tps_6507x_init);
+
+/**
+ * tps_6507x_cleanup
+ *
+ * Module exit function
+ */
+static void __exit tps_6507x_cleanup(void)
+{
+        i2c_del_driver(&tps_6507x_i2c_driver);
+}
+module_exit(tps_6507x_cleanup);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
+MODULE_LICENSE("GPLv2");