TPS65910: Add tps65910 regulator driver
Graeme Gregory [Mon, 2 May 2011 21:20:08 +0000 (16:20 -0500)]
The regulator module consists of 3 DCDCs and 8 LDOs. The output
voltages are configurable and are meant to supply power to the
main processor and other components

Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

drivers/regulator/Kconfig
drivers/regulator/Makefile
drivers/regulator/tps65910-regulator.c [new file with mode: 0644]
include/linux/mfd/tps65910.h

index f0b13a0..d7ed20f 100644 (file)
@@ -297,5 +297,11 @@ config REGULATOR_TPS6524X
          serial interface currently supported on the sequencer serial
          port controller.
 
+config REGULATOR_TPS65910
+       tristate "TI TPS65910 Power Regulator"
+       depends on MFD_TPS65910
+       help
+         This driver supports TPS65910 voltage regulator chips.
+
 endif
 
index 165ff53..3932d2e 100644 (file)
@@ -42,5 +42,6 @@ obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
 obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
 obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o
 obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
+obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
 
 ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
new file mode 100644 (file)
index 0000000..d461fa7
--- /dev/null
@@ -0,0 +1,705 @@
+/*
+ * 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/delay.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/mfd/tps65910.h>
+
+#define TPS65910_REG_VRTC              0
+#define TPS65910_REG_VIO               1
+#define TPS65910_REG_VDD1              2
+#define TPS65910_REG_VDD2              3
+#define TPS65910_REG_VDD3              4
+#define TPS65910_REG_VDIG1             5
+#define TPS65910_REG_VDIG2             6
+#define TPS65910_REG_VPLL              7
+#define TPS65910_REG_VDAC              8
+#define TPS65910_REG_VAUX1             9
+#define TPS65910_REG_VAUX2             10
+#define TPS65910_REG_VAUX33            11
+#define TPS65910_REG_VMMC              12
+
+#define TPS65910_NUM_REGULATOR         13
+
+#define TPS65910_SUPPLY_STATE_ENABLED  0x1
+
+/* supported VIO voltages in milivolts */
+static const u16 VIO_VSEL_table[] = {
+       1500, 1800, 2500, 3300,
+};
+
+/* supported VIO voltages in milivolts */
+static const u16 VDD3_VSEL_table[] = {
+       5000,
+};
+
+/* supported VDIG1 voltages in milivolts */
+static const u16 VDIG1_VSEL_table[] = {
+       1200, 1500, 1800, 2700,
+};
+
+/* supported VDIG2 voltages in milivolts */
+static const u16 VDIG2_VSEL_table[] = {
+       1000, 1100, 1200, 1800,
+};
+
+/* supported VPLL voltages in milivolts */
+static const u16 VPLL_VSEL_table[] = {
+       1000, 1100, 1800, 2500,
+};
+
+/* supported VDAC voltages in milivolts */
+static const u16 VDAC_VSEL_table[] = {
+       1800, 2600, 2800, 2850,
+};
+
+/* supported VAUX1 voltages in milivolts */
+static const u16 VAUX1_VSEL_table[] = {
+       1800, 2500, 2800, 2850,
+};
+
+/* supported VAUX2 voltages in milivolts */
+static const u16 VAUX2_VSEL_table[] = {
+       1800, 2800, 2900, 3300,
+};
+
+/* supported VAUX33 voltages in milivolts */
+static const u16 VAUX33_VSEL_table[] = {
+       1800, 2000, 2800, 3300,
+};
+
+/* supported VMMC voltages in milivolts */
+static const u16 VMMC_VSEL_table[] = {
+       1800, 2800, 3000, 3300,
+};
+
+struct tps_info {
+       const char *name;
+       unsigned min_uV;
+       unsigned max_uV;
+       u8 table_len;
+       const u16 *table;
+};
+
+static struct tps_info tps65910_regs[] = {
+       {
+               .name = "VRTC",
+       },
+       {
+               .name = "VIO",
+               .min_uV = 1500000,
+               .max_uV = 3300000,
+               .table_len = ARRAY_SIZE(VIO_VSEL_table),
+               .table = VIO_VSEL_table,
+       },
+       {
+               .name = "VDD1",
+               .min_uV = 600000,
+               .max_uV = 4500000,
+       },
+       {
+               .name = "VDD2",
+               .min_uV = 600000,
+               .max_uV = 4500000,
+       },
+       {
+               .name = "VDD3",
+               .min_uV = 5000000,
+               .max_uV = 5000000,
+               .table_len = ARRAY_SIZE(VDD3_VSEL_table),
+               .table = VDD3_VSEL_table,
+       },
+       {
+               .name = "VDIG1",
+               .min_uV = 1200000,
+               .max_uV = 2700000,
+               .table_len = ARRAY_SIZE(VDIG1_VSEL_table),
+               .table = VDIG1_VSEL_table,
+       },
+       {
+               .name = "VDIG2",
+               .min_uV = 1000000,
+               .max_uV = 1800000,
+               .table_len = ARRAY_SIZE(VDIG2_VSEL_table),
+               .table = VDIG2_VSEL_table,
+       },
+       {
+               .name = "VPLL",
+               .min_uV = 1000000,
+               .max_uV = 2500000,
+               .table_len = ARRAY_SIZE(VPLL_VSEL_table),
+               .table = VPLL_VSEL_table,
+       },
+       {
+               .name = "VDAC",
+               .min_uV = 1800000,
+               .max_uV = 2850000,
+               .table_len = ARRAY_SIZE(VDAC_VSEL_table),
+               .table = VDAC_VSEL_table,
+       },
+       {
+               .name = "VAUX1",
+               .min_uV = 1800000,
+               .max_uV = 2850000,
+               .table_len = ARRAY_SIZE(VAUX1_VSEL_table),
+               .table = VAUX1_VSEL_table,
+       },
+       {
+               .name = "VAUX2",
+               .min_uV = 1800000,
+               .max_uV = 3300000,
+               .table_len = ARRAY_SIZE(VAUX2_VSEL_table),
+               .table = VAUX2_VSEL_table,
+       },
+       {
+               .name = "VAUX33",
+               .min_uV = 1800000,
+               .max_uV = 3300000,
+               .table_len = ARRAY_SIZE(VAUX33_VSEL_table),
+               .table = VAUX33_VSEL_table,
+       },
+       {
+               .name = "VMMC",
+               .min_uV = 1800000,
+               .max_uV = 3300000,
+               .table_len = ARRAY_SIZE(VMMC_VSEL_table),
+               .table = VMMC_VSEL_table,
+       },
+};
+
+struct tps65910_reg {
+       struct regulator_desc desc[TPS65910_NUM_REGULATOR];
+       struct tps65910 *mfd;
+       struct regulator_dev *rdev[TPS65910_NUM_REGULATOR];
+       struct tps_info *info[TPS65910_NUM_REGULATOR];
+       struct mutex mutex;
+       int mode;
+};
+
+static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg)
+{
+       u8 val;
+       int err;
+
+       err = pmic->mfd->read(pmic->mfd, reg, 1, &val);
+       if (err)
+               return err;
+
+       return val;
+}
+
+static inline int tps65910_write(struct tps65910_reg *pmic, u8 reg, u8 val)
+{
+       return pmic->mfd->write(pmic->mfd, reg, 1, &val);
+}
+
+static int tps65910_modify_bits(struct tps65910_reg *pmic, u8 reg,
+                                       u8 set_mask, u8 clear_mask)
+{
+       int err, data;
+
+       mutex_lock(&pmic->mutex);
+
+       data = tps65910_read(pmic, reg);
+       if (data < 0) {
+               dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
+               err = data;
+               goto out;
+       }
+
+       data &= ~clear_mask;
+       data |= set_mask;
+       err = tps65910_write(pmic, reg, data);
+       if (err)
+               dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+       mutex_unlock(&pmic->mutex);
+       return err;
+}
+
+static int tps65910_reg_read(struct tps65910_reg *pmic, u8 reg)
+{
+       int data;
+
+       mutex_lock(&pmic->mutex);
+
+       data = tps65910_read(pmic, reg);
+       if (data < 0)
+               dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
+
+       mutex_unlock(&pmic->mutex);
+       return data;
+}
+
+static int tps65910_reg_write(struct tps65910_reg *pmic, u8 reg, u8 val)
+{
+       int err;
+
+       mutex_lock(&pmic->mutex);
+
+       err = tps65910_write(pmic, reg, val);
+       if (err < 0)
+               dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+       mutex_unlock(&pmic->mutex);
+       return err;
+}
+
+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 tps65910_is_enabled(struct regulator_dev *dev)
+{
+       struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+       int reg, value, id = rdev_get_id(dev);
+
+       reg = tps65910_get_ctrl_register(id);
+       if (reg < 0)
+               return reg;
+
+       value = tps65910_reg_read(pmic, reg);
+       if (value < 0)
+               return value;
+
+       return value & TPS65910_SUPPLY_STATE_ENABLED;
+}
+
+static int tps65910_enable(struct regulator_dev *dev)
+{
+       struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+       struct tps65910 *mfd = pmic->mfd;
+       int reg, id = rdev_get_id(dev);
+
+       reg = tps65910_get_ctrl_register(id);
+       if (reg < 0)
+               return reg;
+
+       return tps65910_set_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
+}
+
+static int tps65910_disable(struct regulator_dev *dev)
+{
+       struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+       struct tps65910 *mfd = pmic->mfd;
+       int reg, id = rdev_get_id(dev);
+
+       reg = tps65910_get_ctrl_register(id);
+       if (reg < 0)
+               return reg;
+
+       return tps65910_clear_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
+}
+
+
+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 = tps65910_get_ctrl_register(id);
+       if (reg < 0)
+               return reg;
+
+       switch (mode) {
+       case REGULATOR_MODE_NORMAL:
+               return tps65910_modify_bits(pmic, reg, LDO_ST_ON_BIT,
+                                                       LDO_ST_MODE_BIT);
+       case REGULATOR_MODE_IDLE:
+               value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
+               return tps65910_set_bits(mfd, reg, value);
+       case REGULATOR_MODE_STANDBY:
+               return tps65910_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 reg, value, id = rdev_get_id(dev);
+
+       reg = tps65910_get_ctrl_register(id);
+       if (reg < 0)
+               return reg;
+
+       value = tps65910_reg_read(pmic, reg);
+       if (value < 0)
+               return value;
+
+       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(struct regulator_dev *dev)
+{
+       struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+       int id = rdev_get_id(dev), voltage = 0;
+       int opvsel = 0, srvsel = 0, mult = 0, sr = 0;
+
+       switch (id) {
+       case TPS65910_REG_VDD1:
+               opvsel = tps65910_reg_read(pmic, TPS65910_VDD1_OP);
+               mult = tps65910_reg_read(pmic, TPS65910_VDD1);
+               mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
+               srvsel = tps65910_reg_read(pmic, TPS65910_VDD1_SR);
+               sr = opvsel & VDD1_OP_CMD_MASK;
+               opvsel &= VDD1_OP_SEL_MASK;
+               srvsel &= VDD1_SR_SEL_MASK;
+               break;
+       case TPS65910_REG_VDD2:
+               opvsel = tps65910_reg_read(pmic, TPS65910_VDD2_OP);
+               mult = tps65910_reg_read(pmic, TPS65910_VDD2);
+               mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
+               srvsel = tps65910_reg_read(pmic, TPS65910_VDD2_SR);
+               sr = opvsel & VDD2_OP_CMD_MASK;
+               opvsel &= VDD2_OP_SEL_MASK;
+               srvsel &= VDD2_SR_SEL_MASK;
+               break;
+       }
+
+       /* multiplier 0 == 1 but 2,3 normal */
+       if (!mult)
+               mult=1;
+
+       if (sr) {
+               /* Valid range is 3-75 so normalise */
+               if (srvsel < 3) srvsel = 3;
+               if (srvsel > 75) srvsel = 75;
+               srvsel -= 3;
+
+               voltage = (srvsel * VDD1_2_OFFSET + VDD1_2_MIN_VOLT) * 100;
+       } else {
+
+               /* Valid range is 3-75 so normalise */
+               if (opvsel < 3) opvsel = 3;
+               if (opvsel > 75) opvsel = 75;
+               opvsel -= 3;
+
+               voltage = (opvsel * VDD1_2_OFFSET + VDD1_2_MIN_VOLT) * 100;
+       }
+
+       voltage *= mult;
+
+       return voltage;
+}
+
+static int tps65910_get_voltage(struct regulator_dev *dev)
+{
+       struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+       int reg, value, id = rdev_get_id(dev), voltage = 0;
+
+       reg = tps65910_get_ctrl_register(id);
+       if (reg < 0)
+               return reg;
+
+       value = tps65910_reg_read(pmic, reg);
+       if (value < 0)
+               return value;
+
+       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;
+       }
+
+       voltage = pmic->info[id]->table[value] * 1000;
+
+       return voltage;
+}
+
+static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
+{
+       return 5 * 1000 * 1000;
+}
+
+static int tps65910_set_voltage_dcdc(struct regulator_dev *dev,
+                               unsigned selector)
+{
+       struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+       int id = rdev_get_id(dev), vsel;
+       int dcdc_mult;
+
+       /* Split vsel into appropriate registers */
+       dcdc_mult = (selector / VDD1_2_NUM_VOLTS) + 1;
+       if (dcdc_mult == 1) dcdc_mult--;
+
+       vsel = (selector % VDD1_2_NUM_VOLTS) + 3;
+
+       if (id == TPS65910_REG_VDD1) {
+               tps65910_modify_bits(pmic, TPS65910_VDD1,
+                               (dcdc_mult << VDD1_VGAIN_SEL_SHIFT),
+                                               VDD1_VGAIN_SEL_MASK);
+               tps65910_reg_write(pmic, TPS65910_VDD1_OP, vsel);
+       } else {
+               tps65910_modify_bits(pmic, TPS65910_VDD2,
+                               (dcdc_mult << VDD2_VGAIN_SEL_SHIFT),
+                                               VDD1_VGAIN_SEL_MASK);
+               tps65910_reg_write(pmic, TPS65910_VDD2_OP, vsel);
+       }
+
+       return 0;
+}
+
+static int tps65910_set_voltage(struct regulator_dev *dev, unsigned selector)
+{
+       struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+       int reg, id = rdev_get_id(dev);
+
+       reg = tps65910_get_ctrl_register(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_modify_bits(pmic, reg,
+                               (selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
+       }
+
+       return -EINVAL;
+}
+
+static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
+                                       unsigned selector)
+{
+       int mult, volt;
+
+       mult = (selector / VDD1_2_NUM_VOLTS) + 1;
+
+       volt = VDD1_2_MIN_VOLT + (selector % VDD1_2_NUM_VOLTS) * VDD1_2_OFFSET;
+
+       return  volt * 100 * mult;
+}
+
+static int tps65910_list_voltage(struct regulator_dev *dev,
+                                       unsigned selector)
+{
+       struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+       int id = rdev_get_id(dev), voltage;
+
+       if (id < TPS65910_REG_VIO || id > TPS65910_REG_VMMC)
+               return -EINVAL;
+
+       if (selector >= pmic->info[id]->table_len)
+               return -EINVAL;
+       else
+               voltage = pmic->info[id]->table[selector] * 1000;
+
+       return voltage;
+}
+
+/* Regulator ops (except VRTC) */
+static struct regulator_ops tps65910_ops_dcdc = {
+       .is_enabled             = tps65910_is_enabled,
+       .enable                 = tps65910_enable,
+       .disable                = tps65910_disable,
+       .set_mode               = tps65910_set_mode,
+       .get_mode               = tps65910_get_mode,
+       .get_voltage            = tps65910_get_voltage_dcdc,
+       .set_voltage_sel        = tps65910_set_voltage_dcdc,
+       .list_voltage           = tps65910_list_voltage_dcdc,
+};
+
+static struct regulator_ops tps65910_ops_vdd3 = {
+       .is_enabled             = tps65910_is_enabled,
+       .enable                 = tps65910_enable,
+       .disable                = tps65910_disable,
+       .set_mode               = tps65910_set_mode,
+       .get_mode               = tps65910_get_mode,
+       .get_voltage            = tps65910_get_voltage_vdd3,
+       .list_voltage           = tps65910_list_voltage,
+};
+
+static struct regulator_ops tps65910_ops = {
+       .is_enabled             = tps65910_is_enabled,
+       .enable                 = tps65910_enable,
+       .disable                = tps65910_disable,
+       .set_mode               = tps65910_set_mode,
+       .get_mode               = tps65910_get_mode,
+       .get_voltage            = tps65910_get_voltage,
+       .set_voltage_sel        = tps65910_set_voltage,
+       .list_voltage           = tps65910_list_voltage,
+};
+
+static __devinit int tps65910_probe(struct platform_device *pdev)
+{
+       struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
+       struct tps_info *info = tps65910_regs;
+       struct regulator_init_data *reg_data;
+       struct regulator_dev *rdev;
+       struct tps65910_reg *pmic;
+       struct tps65910_board *pmic_plat_data;
+       static int desc_id;
+       int i, err;
+
+       pmic_plat_data = dev_get_platdata(tps65910->dev);
+       if (!pmic_plat_data)
+               return -EINVAL;
+
+       reg_data = pmic_plat_data->tps65910_pmic_init_data;
+
+       pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
+       if (!pmic)
+               return -ENOMEM;
+
+       mutex_init(&pmic->mutex);
+       pmic->mfd = tps65910;
+       platform_set_drvdata(pdev, pmic);
+
+       /* Give control of all register to control port */
+       tps65910_set_bits(pmic->mfd, TPS65910_DEVCTRL,
+                               DEVCTRL_SR_CTL_I2C_SEL_MASK);
+
+       for (i = 0; i < TPS65910_NUM_REGULATOR; i++, info++, reg_data++) {
+               /* Register the regulators */
+               pmic->info[i] = info;
+
+               pmic->desc[i].name = info->name;
+               pmic->desc[i].id = desc_id++;
+               pmic->desc[i].n_voltages = info->table_len;
+
+               if ((i == TPS65910_REG_VDD1) || (i == TPS65910_REG_VDD2))
+                       pmic->desc[i].ops = &tps65910_ops_dcdc;
+               else if (i == TPS65910_REG_VDD3)
+                       pmic->desc[i].ops = &tps65910_ops_vdd3;
+               else
+                       pmic->desc[i].ops = &tps65910_ops;
+
+               pmic->desc[i].type = REGULATOR_VOLTAGE;
+               pmic->desc[i].owner = THIS_MODULE;
+
+               rdev = regulator_register(&pmic->desc[i],
+                               tps65910->dev, reg_data, pmic);
+               if (IS_ERR(rdev)) {
+                       dev_err(tps65910->dev,
+                               "failed to register %s regulator\n",
+                               pdev->name);
+                       err = PTR_ERR(rdev);
+                       goto err;
+               }
+
+               /* Save regulator for cleanup */
+               pmic->rdev[i] = rdev;
+       }
+       return 0;
+
+err:
+       while (--i >= 0)
+               regulator_unregister(pmic->rdev[i]);
+
+       kfree(pmic);
+       return err;
+}
+
+static int __devexit tps65910_remove(struct platform_device *pdev)
+{
+       struct tps65910_reg *tps65910_reg = platform_get_drvdata(pdev);
+       int i;
+
+       for (i = 0; i < TPS65910_NUM_REGULATOR; i++)
+               regulator_unregister(tps65910_reg->rdev[i]);
+
+       kfree(tps65910_reg);
+       return 0;
+}
+
+static struct platform_driver tps65910_driver = {
+       .driver = {
+               .name = "tps65910-pmic",
+               .owner = THIS_MODULE,
+       },
+       .probe = tps65910_probe,
+       .remove = __devexit_p(tps65910_remove),
+};
+
+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("TPS6507x voltage regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps65910-pmic");
index 8afe91c..be08a0c 100644 (file)
 #define VDD2_SR_SEL_SHIFT                              0
 
 
+/*Registers VDD1, VDD2 voltage values definitions */
+#define VDD1_2_NUM_VOLTS                               73
+#define VDD1_2_MIN_VOLT                                        6000
+#define VDD1_2_OFFSET                                  125
+
+
 /*Register VDD3  (0x80) register.RegisterDescription */
 #define VDD3_CKINEN_MASK                               0x04
 #define VDD3_CKINEN_SHIFT                              2
 #define VDD3_ST_MASK                                   0x03
 #define VDD3_ST_SHIFT                                  0
 
+/*Registers VDIG (0x80) to VDAC register.RegisterDescription */
+#define LDO_SEL_MASK                                   0x0C
+#define LDO_SEL_SHIFT                                  2
+#define LDO_ST_MASK                                    0x03
+#define LDO_ST_SHIFT                                   0
+#define LDO_ST_ON_BIT                                  0x01
+#define LDO_ST_MODE_BIT                                        0x02    
+
 
 /*Register VDIG1  (0x80) register.RegisterDescription */
 #define VDIG1_SEL_MASK                                 0x0C