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-rw-r--r--drivers/regulator/Kconfig21
-rw-r--r--drivers/regulator/Makefile2
-rw-r--r--drivers/regulator/anatop-regulator.c28
-rw-r--r--drivers/regulator/core.c6
-rw-r--r--drivers/regulator/da9055-regulator.c644
-rw-r--r--drivers/regulator/palmas-regulator.c37
-rw-r--r--drivers/regulator/pcf50633-regulator.c176
-rw-r--r--drivers/regulator/tps51632-regulator.c327
-rw-r--r--include/linux/mfd/da9055/pdata.h27
-rw-r--r--include/linux/regulator/driver.h2
-rw-r--r--include/linux/regulator/tps51632-regulator.h47
11 files changed, 1115 insertions, 202 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 67d47b59a66d..10b1edc89621 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -109,6 +109,16 @@ config REGULATOR_DA9052
This driver supports the voltage regulators of DA9052-BC and
DA9053-AA/Bx PMIC.
+config REGULATOR_DA9055
+ tristate "Dialog Semiconductor DA9055 regulators"
+ depends on MFD_DA9055
+ help
+ Say y here to support the BUCKs and LDOs regulators found on
+ Dialog Semiconductor DA9055 PMIC.
+
+ This driver can also be built as a module. If so, the module
+ will be called da9055-regulator.
+
config REGULATOR_FAN53555
tristate "Fairchild FAN53555 Regulator"
depends on I2C
@@ -335,6 +345,17 @@ config REGULATOR_PALMAS
on the muxing. This is handled automatically in the driver by
reading the mux info from OTP.
+config REGULATOR_TPS51632
+ tristate "TI TPS51632 Power Regulator"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This driver supports TPS51632 voltage regulator chip.
+ The TPS51632 is 3-2-1 Phase D-Cap+ Step Down Driverless Controller
+ with Serial VID control and DVFS.
+ The voltage output can be configure through I2C interface or PWM
+ interface.
+
config REGULATOR_TPS6105X
tristate "TI TPS6105X Power regulators"
depends on TPS6105X
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index e431eed8a878..bdaca617e2f2 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o
obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o arizona-ldo1.o
obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
obj-$(CONFIG_REGULATOR_DA9052) += da9052-regulator.o
+obj-$(CONFIG_REGULATOR_DA9055) += da9055-regulator.o
obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o
obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o
@@ -41,6 +42,7 @@ obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o
obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o
obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o
obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o
+obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o
obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o
obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o
diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 1af97686f444..b6182e17b0dc 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -48,36 +48,21 @@ static int anatop_regmap_set_voltage_sel(struct regulator_dev *reg,
unsigned selector)
{
struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);
- u32 val, mask;
if (!anatop_reg->control_reg)
return -ENOTSUPP;
- val = anatop_reg->min_bit_val + selector;
- dev_dbg(&reg->dev, "%s: calculated val %d\n", __func__, val);
- mask = ((1 << anatop_reg->vol_bit_width) - 1) <<
- anatop_reg->vol_bit_shift;
- val <<= anatop_reg->vol_bit_shift;
- regmap_update_bits(anatop_reg->anatop, anatop_reg->control_reg,
- mask, val);
-
- return 0;
+ return regulator_set_voltage_sel_regmap(reg, selector);
}
static int anatop_regmap_get_voltage_sel(struct regulator_dev *reg)
{
struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);
- u32 val, mask;
if (!anatop_reg->control_reg)
return -ENOTSUPP;
- regmap_read(anatop_reg->anatop, anatop_reg->control_reg, &val);
- mask = ((1 << anatop_reg->vol_bit_width) - 1) <<
- anatop_reg->vol_bit_shift;
- val = (val & mask) >> anatop_reg->vol_bit_shift;
-
- return val - anatop_reg->min_bit_val;
+ return regulator_get_voltage_sel_regmap(reg);
}
static struct regulator_ops anatop_rops = {
@@ -158,15 +143,20 @@ static int __devinit anatop_regulator_probe(struct platform_device *pdev)
goto anatop_probe_end;
}
- rdesc->n_voltages = (sreg->max_voltage - sreg->min_voltage)
- / 25000 + 1;
+ rdesc->n_voltages = (sreg->max_voltage - sreg->min_voltage) / 25000 + 1
+ + sreg->min_bit_val;
rdesc->min_uV = sreg->min_voltage;
rdesc->uV_step = 25000;
+ rdesc->linear_min_sel = sreg->min_bit_val;
+ rdesc->vsel_reg = sreg->control_reg;
+ rdesc->vsel_mask = ((1 << sreg->vol_bit_width) - 1) <<
+ sreg->vol_bit_shift;
config.dev = &pdev->dev;
config.init_data = initdata;
config.driver_data = sreg;
config.of_node = pdev->dev.of_node;
+ config.regmap = sreg->anatop;
/* register regulator */
rdev = regulator_register(rdesc, &config);
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 59e08633372a..1c8ff8ce5c57 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1919,6 +1919,10 @@ int regulator_list_voltage_linear(struct regulator_dev *rdev,
{
if (selector >= rdev->desc->n_voltages)
return -EINVAL;
+ if (selector < rdev->desc->linear_min_sel)
+ return 0;
+
+ selector -= rdev->desc->linear_min_sel;
return rdev->desc->min_uV + (rdev->desc->uV_step * selector);
}
@@ -2142,6 +2146,8 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev,
if (ret < 0)
return ret;
+ ret += rdev->desc->linear_min_sel;
+
/* Map back into a voltage to verify we're still in bounds */
voltage = rdev->desc->ops->list_voltage(rdev, ret);
if (voltage < min_uV || voltage > max_uV)
diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c
new file mode 100644
index 000000000000..2253559703ce
--- /dev/null
+++ b/drivers/regulator/da9055-regulator.c
@@ -0,0 +1,644 @@
+/*
+* Regulator driver for DA9055 PMIC
+*
+* Copyright(c) 2012 Dialog Semiconductor Ltd.
+*
+* Author: David Dajun Chen <dchen@diasemi.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; either version 2 of the License, or
+* (at your option) any later version.
+*
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#include <linux/mfd/da9055/core.h>
+#include <linux/mfd/da9055/reg.h>
+#include <linux/mfd/da9055/pdata.h>
+
+#define DA9055_MIN_UA 0
+#define DA9055_MAX_UA 3
+
+#define DA9055_LDO_MODE_SYNC 0
+#define DA9055_LDO_MODE_SLEEP 1
+
+#define DA9055_BUCK_MODE_SLEEP 1
+#define DA9055_BUCK_MODE_SYNC 2
+#define DA9055_BUCK_MODE_AUTO 3
+
+/* DA9055 REGULATOR IDs */
+#define DA9055_ID_BUCK1 0
+#define DA9055_ID_BUCK2 1
+#define DA9055_ID_LDO1 2
+#define DA9055_ID_LDO2 3
+#define DA9055_ID_LDO3 4
+#define DA9055_ID_LDO4 5
+#define DA9055_ID_LDO5 6
+#define DA9055_ID_LDO6 7
+
+/* DA9055 BUCK current limit */
+static const int da9055_current_limits[] = { 500000, 600000, 700000, 800000 };
+
+struct da9055_conf_reg {
+ int reg;
+ int sel_mask;
+ int en_mask;
+};
+
+struct da9055_volt_reg {
+ int reg_a;
+ int reg_b;
+ int sl_shift;
+ int v_mask;
+ int v_shift;
+};
+
+struct da9055_mode_reg {
+ int reg;
+ int mask;
+ int shift;
+};
+
+struct da9055_regulator_info {
+ struct regulator_desc reg_desc;
+ struct da9055_conf_reg conf;
+ struct da9055_volt_reg volt;
+ struct da9055_mode_reg mode;
+};
+
+struct da9055_regulator {
+ struct da9055 *da9055;
+ struct da9055_regulator_info *info;
+ struct regulator_dev *rdev;
+ enum gpio_select reg_rselect;
+};
+
+static unsigned int da9055_buck_get_mode(struct regulator_dev *rdev)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ int ret, mode = 0;
+
+ ret = da9055_reg_read(regulator->da9055, info->mode.reg);
+ if (ret < 0)
+ return ret;
+
+ switch ((ret & info->mode.mask) >> info->mode.shift) {
+ case DA9055_BUCK_MODE_SYNC:
+ mode = REGULATOR_MODE_FAST;
+ break;
+ case DA9055_BUCK_MODE_AUTO:
+ mode = REGULATOR_MODE_NORMAL;
+ break;
+ case DA9055_BUCK_MODE_SLEEP:
+ mode = REGULATOR_MODE_STANDBY;
+ break;
+ }
+
+ return mode;
+}
+
+static int da9055_buck_set_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ int val = 0;
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ val = DA9055_BUCK_MODE_SYNC << info->mode.shift;
+ break;
+ case REGULATOR_MODE_NORMAL:
+ val = DA9055_BUCK_MODE_AUTO << info->mode.shift;
+ break;
+ case REGULATOR_MODE_STANDBY:
+ val = DA9055_BUCK_MODE_SLEEP << info->mode.shift;
+ break;
+ }
+
+ return da9055_reg_update(regulator->da9055, info->mode.reg,
+ info->mode.mask, val);
+}
+
+static unsigned int da9055_ldo_get_mode(struct regulator_dev *rdev)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ int ret;
+
+ ret = da9055_reg_read(regulator->da9055, info->volt.reg_b);
+ if (ret < 0)
+ return ret;
+
+ if (ret >> info->volt.sl_shift)
+ return REGULATOR_MODE_STANDBY;
+ else
+ return REGULATOR_MODE_NORMAL;
+}
+
+static int da9055_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ struct da9055_volt_reg volt = info->volt;
+ int val = 0;
+
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ case REGULATOR_MODE_FAST:
+ val = DA9055_LDO_MODE_SYNC;
+ break;
+ case REGULATOR_MODE_STANDBY:
+ val = DA9055_LDO_MODE_SLEEP;
+ break;
+ }
+
+ return da9055_reg_update(regulator->da9055, volt.reg_b,
+ 1 << volt.sl_shift,
+ val << volt.sl_shift);
+}
+
+static int da9055_buck_get_current_limit(struct regulator_dev *rdev)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ int ret;
+
+ ret = da9055_reg_read(regulator->da9055, DA9055_REG_BUCK_LIM);
+ if (ret < 0)
+ return ret;
+
+ ret &= info->mode.mask;
+ return da9055_current_limits[ret >> info->mode.shift];
+}
+
+static int da9055_buck_set_current_limit(struct regulator_dev *rdev, int min_uA,
+ int max_uA)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ int i, val = 0;
+
+ if (min_uA > da9055_current_limits[DA9055_MAX_UA] ||
+ max_uA < da9055_current_limits[DA9055_MIN_UA])
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(da9055_current_limits); i++) {
+ if (min_uA <= da9055_current_limits[i]) {
+ val = i;
+ break;
+ }
+ }
+
+ return da9055_reg_update(regulator->da9055, DA9055_REG_BUCK_LIM,
+ info->mode.mask, val << info->mode.shift);
+}
+
+static int da9055_regulator_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ struct da9055_volt_reg volt = info->volt;
+ int ret, sel;
+
+ /*
+ * There are two voltage register set A & B for voltage ramping but
+ * either one of then can be active therefore we first determine
+ * the active register set.
+ */
+ ret = da9055_reg_read(regulator->da9055, info->conf.reg);
+ if (ret < 0)
+ return ret;
+
+ ret &= info->conf.sel_mask;
+
+ /* Get the voltage for the active register set A/B */
+ if (ret == DA9055_REGUALTOR_SET_A)
+ ret = da9055_reg_read(regulator->da9055, volt.reg_a);
+ else
+ ret = da9055_reg_read(regulator->da9055, volt.reg_b);
+
+ if (ret < 0)
+ return ret;
+
+ sel = (ret & volt.v_mask);
+ return sel;
+}
+
+static int da9055_regulator_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ int ret;
+
+ /*
+ * Regulator register set A/B is not selected through GPIO therefore
+ * we use default register set A for voltage ramping.
+ */
+ if (regulator->reg_rselect == NO_GPIO) {
+ /* Select register set A */
+ ret = da9055_reg_update(regulator->da9055, info->conf.reg,
+ info->conf.sel_mask, DA9055_SEL_REG_A);
+ if (ret < 0)
+ return ret;
+
+ /* Set the voltage */
+ return da9055_reg_update(regulator->da9055, info->volt.reg_a,
+ info->volt.v_mask, selector);
+ }
+
+ /*
+ * Here regulator register set A/B is selected through GPIO.
+ * Therefore we first determine the selected register set A/B and
+ * then set the desired voltage for that register set A/B.
+ */
+ ret = da9055_reg_read(regulator->da9055, info->conf.reg);
+ if (ret < 0)
+ return ret;
+
+ ret &= info->conf.sel_mask;
+
+ /* Set the voltage */
+ if (ret == DA9055_REGUALTOR_SET_A)
+ return da9055_reg_update(regulator->da9055, info->volt.reg_a,
+ info->volt.v_mask, selector);
+ else
+ return da9055_reg_update(regulator->da9055, info->volt.reg_b,
+ info->volt.v_mask, selector);
+}
+
+static int da9055_regulator_set_suspend_voltage(struct regulator_dev *rdev,
+ int uV)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+ int ret;
+
+ /* Select register set B for suspend voltage ramping. */
+ if (regulator->reg_rselect == NO_GPIO) {
+ ret = da9055_reg_update(regulator->da9055, info->conf.reg,
+ info->conf.sel_mask, DA9055_SEL_REG_B);
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = regulator_map_voltage_linear(rdev, uV, uV);
+ if (ret < 0)
+ return ret;
+
+ return da9055_reg_update(regulator->da9055, info->volt.reg_b,
+ info->volt.v_mask, ret);
+}
+
+static int da9055_suspend_enable(struct regulator_dev *rdev)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+
+ /* Select register set B for voltage ramping. */
+ if (regulator->reg_rselect == NO_GPIO)
+ return da9055_reg_update(regulator->da9055, info->conf.reg,
+ info->conf.sel_mask, DA9055_SEL_REG_B);
+ else
+ return 0;
+}
+
+static int da9055_suspend_disable(struct regulator_dev *rdev)
+{
+ struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9055_regulator_info *info = regulator->info;
+
+ /* Diselect register set B. */
+ if (regulator->reg_rselect == NO_GPIO)
+ return da9055_reg_update(regulator->da9055, info->conf.reg,
+ info->conf.sel_mask, DA9055_SEL_REG_A);
+ else
+ return 0;
+}
+
+static struct regulator_ops da9055_buck_ops = {
+ .get_mode = da9055_buck_get_mode,
+ .set_mode = da9055_buck_set_mode,
+
+ .get_current_limit = da9055_buck_get_current_limit,
+ .set_current_limit = da9055_buck_set_current_limit,
+
+ .get_voltage_sel = da9055_regulator_get_voltage_sel,
+ .set_voltage_sel = da9055_regulator_set_voltage_sel,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+
+ .set_suspend_voltage = da9055_regulator_set_suspend_voltage,
+ .set_suspend_enable = da9055_suspend_enable,
+ .set_suspend_disable = da9055_suspend_disable,
+ .set_suspend_mode = da9055_buck_set_mode,
+};
+
+static struct regulator_ops da9055_ldo_ops = {
+ .get_mode = da9055_ldo_get_mode,
+ .set_mode = da9055_ldo_set_mode,
+
+ .get_voltage_sel = da9055_regulator_get_voltage_sel,
+ .set_voltage_sel = da9055_regulator_set_voltage_sel,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+
+ .set_suspend_voltage = da9055_regulator_set_suspend_voltage,
+ .set_suspend_enable = da9055_suspend_enable,
+ .set_suspend_disable = da9055_suspend_disable,
+ .set_suspend_mode = da9055_ldo_set_mode,
+
+};
+
+#define DA9055_LDO(_id, step, min, max, vbits, voffset) \
+{\
+ .reg_desc = {\
+ .name = #_id,\
+ .ops = &da9055_ldo_ops,\
+ .type = REGULATOR_VOLTAGE,\
+ .id = DA9055_ID_##_id,\
+ .n_voltages = (max - min) / step + 1 + (voffset), \
+ .enable_reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \
+ .enable_mask = 1, \
+ .min_uV = (min) * 1000,\
+ .uV_step = (step) * 1000,\
+ .linear_min_sel = (voffset),\
+ .owner = THIS_MODULE,\
+ },\
+ .conf = {\
+ .reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \
+ .sel_mask = (1 << 4),\
+ .en_mask = 1,\
+ },\
+ .volt = {\
+ .reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \
+ .reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \
+ .sl_shift = 7,\
+ .v_mask = (1 << (vbits)) - 1,\
+ .v_shift = (vbits),\
+ },\
+}
+
+#define DA9055_BUCK(_id, step, min, max, vbits, voffset, mbits, sbits) \
+{\
+ .reg_desc = {\
+ .name = #_id,\
+ .ops = &da9055_buck_ops,\
+ .type = REGULATOR_VOLTAGE,\
+ .id = DA9055_ID_##_id,\
+ .n_voltages = (max - min) / step + 1 + (voffset), \
+ .enable_reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \
+ .enable_mask = 1,\
+ .min_uV = (min) * 1000,\
+ .uV_step = (step) * 1000,\
+ .linear_min_sel = (voffset),\
+ .owner = THIS_MODULE,\
+ },\
+ .conf = {\
+ .reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \
+ .sel_mask = (1 << 4),\
+ .en_mask = 1,\
+ },\
+ .volt = {\
+ .reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \
+ .reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \
+ .sl_shift = 7,\
+ .v_mask = (1 << (vbits)) - 1,\
+ .v_shift = (vbits),\
+ },\
+ .mode = {\
+ .reg = DA9055_REG_BCORE_MODE,\
+ .mask = (mbits),\
+ .shift = (sbits),\
+ },\
+}
+
+static struct da9055_regulator_info da9055_regulator_info[] = {
+ DA9055_BUCK(BUCK1, 25, 725, 2075, 6, 9, 0xc, 2),
+ DA9055_BUCK(BUCK2, 25, 925, 2500, 6, 0, 3, 0),
+ DA9055_LDO(LDO1, 50, 900, 3300, 6, 2),
+ DA9055_LDO(LDO2, 50, 900, 3300, 6, 3),
+ DA9055_LDO(LDO3, 50, 900, 3300, 6, 2),
+ DA9055_LDO(LDO4, 50, 900, 3300, 6, 2),
+ DA9055_LDO(LDO5, 50, 900, 2750, 6, 2),
+ DA9055_LDO(LDO6, 20, 900, 3300, 7, 0),
+};
+
+/*
+ * Configures regulator to be controlled either through GPIO 1 or 2.
+ * GPIO can control regulator state and/or select the regulator register
+ * set A/B for voltage ramping.
+ */
+static __devinit int da9055_gpio_init(struct da9055_regulator *regulator,
+ struct regulator_config *config,
+ struct da9055_pdata *pdata, int id)
+{
+ struct da9055_regulator_info *info = regulator->info;
+ int ret = 0;
+
+ if (pdata->gpio_ren && pdata->gpio_ren[id]) {
+ char name[18];
+ int gpio_mux = pdata->gpio_ren[id];
+
+ config->ena_gpio = pdata->ena_gpio[id];
+ config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
+ config->ena_gpio_invert = 1;
+
+ /*
+ * GPI pin is muxed with regulator to control the
+ * regulator state.
+ */
+ sprintf(name, "DA9055 GPI %d", gpio_mux);
+ ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN,
+ name);
+ if (ret < 0)
+ goto err;
+
+ /*
+ * Let the regulator know that its state is controlled
+ * through GPI.
+ */
+ ret = da9055_reg_update(regulator->da9055, info->conf.reg,
+ DA9055_E_GPI_MASK,
+ pdata->reg_ren[id]
+ << DA9055_E_GPI_SHIFT);
+ if (ret < 0)
+ goto err;
+ }
+
+ if (pdata->gpio_rsel && pdata->gpio_rsel[id]) {
+ char name[18];
+ int gpio_mux = pdata->gpio_rsel[id];
+
+ regulator->reg_rselect = pdata->reg_rsel[id];
+
+ /*
+ * GPI pin is muxed with regulator to select the
+ * regulator register set A/B for voltage ramping.
+ */
+ sprintf(name, "DA9055 GPI %d", gpio_mux);
+ ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN,
+ name);
+ if (ret < 0)
+ goto err;
+
+ /*
+ * Let the regulator know that its register set A/B
+ * will be selected through GPI for voltage ramping.
+ */
+ ret = da9055_reg_update(regulator->da9055, info->conf.reg,
+ DA9055_V_GPI_MASK,
+ pdata->reg_rsel[id]
+ << DA9055_V_GPI_SHIFT);
+ }
+
+err:
+ return ret;
+}
+
+static irqreturn_t da9055_ldo5_6_oc_irq(int irq, void *data)
+{
+ struct da9055_regulator *regulator = data;
+
+ regulator_notifier_call_chain(regulator->rdev,
+ REGULATOR_EVENT_OVER_CURRENT, NULL);
+
+ return IRQ_HANDLED;
+}
+
+static inline struct da9055_regulator_info *find_regulator_info(int id)
+{
+ struct da9055_regulator_info *info;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(da9055_regulator_info); i++) {
+ info = &da9055_regulator_info[i];
+ if (info->reg_desc.id == id)
+ return info;
+ }
+
+ return NULL;
+}
+
+static int __devinit da9055_regulator_probe(struct platform_device *pdev)
+{
+ struct regulator_config config = { };
+ struct da9055_regulator *regulator;
+ struct da9055 *da9055 = dev_get_drvdata(pdev->dev.parent);
+ struct da9055_pdata *pdata = da9055->dev->platform_data;
+ int ret, irq;
+
+ if (pdata == NULL || pdata->regulators[pdev->id] == NULL)
+ return -ENODEV;
+
+ regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9055_regulator),
+ GFP_KERNEL);
+ if (!regulator)
+ return -ENOMEM;
+
+ regulator->info = find_regulator_info(pdev->id);
+ if (regulator->info == NULL) {
+ dev_err(&pdev->dev, "invalid regulator ID specified\n");
+ return -EINVAL;
+ }
+
+ regulator->da9055 = da9055;
+ config.dev = &pdev->dev;
+ config.driver_data = regulator;
+ config.regmap = da9055->regmap;
+
+ if (pdata && pdata->regulators)
+ config.init_data = pdata->regulators[pdev->id];
+
+ ret = da9055_gpio_init(regulator, &config, pdata, pdev->id);
+ if (ret < 0)
+ return ret;
+
+ regulator->rdev = regulator_register(&regulator->info->reg_desc,
+ &config);
+ if (IS_ERR(regulator->rdev)) {
+ dev_err(&pdev->dev, "Failed to register regulator %s\n",
+ regulator->info->reg_desc.name);
+ ret = PTR_ERR(regulator->rdev);
+ return ret;
+ }
+
+ /* Only LDO 5 and 6 has got the over current interrupt */
+ if (pdev->id == DA9055_ID_LDO5 || pdev->id == DA9055_ID_LDO6) {
+ irq = platform_get_irq_byname(pdev, "REGULATOR");
+ irq = regmap_irq_get_virq(da9055->irq_data, irq);
+ ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+ da9055_ldo5_6_oc_irq,
+ IRQF_TRIGGER_HIGH |
+ IRQF_ONESHOT |
+ IRQF_PROBE_SHARED,
+ pdev->name, regulator);
+ if (ret != 0) {
+ if (ret != -EBUSY) {
+ dev_err(&pdev->dev,
+ "Failed to request Regulator IRQ %d: %d\n",
+ irq, ret);
+ goto err_regulator;
+ }
+ }
+ }
+
+ platform_set_drvdata(pdev, regulator);
+
+ return 0;
+
+err_regulator:
+ regulator_unregister(regulator->rdev);
+ return ret;
+}
+
+static int __devexit da9055_regulator_remove(struct platform_device *pdev)
+{
+ struct da9055_regulator *regulator = platform_get_drvdata(pdev);
+
+ regulator_unregister(regulator->rdev);
+
+ return 0;
+}
+
+static struct platform_driver da9055_regulator_driver = {
+ .probe = da9055_regulator_probe,
+ .remove = __devexit_p(da9055_regulator_remove),
+ .driver = {
+ .name = "da9055-regulator",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init da9055_regulator_init(void)
+{
+ return platform_driver_register(&da9055_regulator_driver);
+}
+subsys_initcall(da9055_regulator_init);
+
+static void __exit da9055_regulator_exit(void)
+{
+ platform_driver_unregister(&da9055_regulator_driver);
+}
+module_exit(da9055_regulator_exit);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("Power Regulator driver for Dialog DA9055 PMIC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9055-regulator");
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 07aee694ba92..111d76b04bb5 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -436,44 +436,14 @@ static int palmas_is_enabled_ldo(struct regulator_dev *dev)
return !!(reg);
}
-static int palmas_list_voltage_ldo(struct regulator_dev *dev,
- unsigned selector)
-{
- if (!selector)
- return 0;
-
- /* voltage is 0.85V + (selector * 0.05v) */
- return 850000 + (selector * 50000);
-}
-
-static int palmas_map_voltage_ldo(struct regulator_dev *rdev,
- int min_uV, int max_uV)
-{
- int ret, voltage;
-
- if (min_uV == 0)
- return 0;
-
- if (min_uV < 900000)
- min_uV = 900000;
- ret = DIV_ROUND_UP(min_uV - 900000, 50000) + 1;
-
- /* Map back into a voltage to verify we're still in bounds */
- voltage = palmas_list_voltage_ldo(rdev, ret);
- if (voltage < min_uV || voltage > max_uV)
- return -EINVAL;
-
- return ret;
-}
-
static struct regulator_ops palmas_ops_ldo = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
- .list_voltage = palmas_list_voltage_ldo,
- .map_voltage = palmas_map_voltage_ldo,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
};
/*
@@ -821,6 +791,9 @@ static __devinit int palmas_probe(struct platform_device *pdev)
pmic->desc[id].type = REGULATOR_VOLTAGE;
pmic->desc[id].owner = THIS_MODULE;
+ pmic->desc[id].min_uV = 900000;
+ pmic->desc[id].uV_step = 50000;
+ pmic->desc[id].linear_min_sel = 1;
pmic->desc[id].vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
palmas_regs_info[id].vsel_addr);
pmic->desc[id].vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c
index 092e5cb848a1..769272afff2a 100644
--- a/drivers/regulator/pcf50633-regulator.c
+++ b/drivers/regulator/pcf50633-regulator.c
@@ -24,12 +24,15 @@
#include <linux/mfd/pcf50633/core.h>
#include <linux/mfd/pcf50633/pmic.h>
-#define PCF50633_REGULATOR(_name, _id, _n) \
+#define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \
{ \
.name = _name, \
.id = PCF50633_REGULATOR_##_id, \
.ops = &pcf50633_regulator_ops, \
.n_voltages = _n, \
+ .min_uV = _min_uV, \
+ .uV_step = _uV_step, \
+ .linear_min_sel = _min_sel, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = PCF50633_REG_##_id##OUT, \
@@ -38,162 +41,39 @@
.enable_mask = PCF50633_REGULATOR_ON, \
}
-/* Bits from voltage value */
-static u8 auto_voltage_bits(unsigned int millivolts)
-{
- if (millivolts < 1800)
- return 0x2f;
- if (millivolts > 3800)
- return 0xff;
-
- millivolts -= 625;
-
- return millivolts / 25;
-}
-
-static u8 down_voltage_bits(unsigned int millivolts)
-{
- if (millivolts < 625)
- return 0;
- else if (millivolts > 3000)
- return 0xff;
-
- millivolts -= 625;
-
- return millivolts / 25;
-}
-
-static u8 ldo_voltage_bits(unsigned int millivolts)
-{
- if (millivolts < 900)
- return 0;
- else if (millivolts > 3600)
- return 0x1f;
-
- millivolts -= 900;
- return millivolts / 100;
-}
-
-/* Obtain voltage value from bits */
-static unsigned int auto_voltage_value(u8 bits)
-{
- /* AUTOOUT: 00000000 to 00101110 are reserved.
- * Return 0 for bits in reserved range, which means this selector code
- * can't be used on this system */
- if (bits < 0x2f)
- return 0;
-
- return 625 + (bits * 25);
-}
-
-
-static unsigned int down_voltage_value(u8 bits)
-{
- return 625 + (bits * 25);
-}
-
-
-static unsigned int ldo_voltage_value(u8 bits)
-{
- bits &= 0x1f;
-
- return 900 + (bits * 100);
-}
-
-static int pcf50633_regulator_map_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV)
-{
- struct pcf50633 *pcf;
- int regulator_id, millivolts;
- u8 volt_bits;
-
- pcf = rdev_get_drvdata(rdev);
-
- regulator_id = rdev_get_id(rdev);
- if (regulator_id >= PCF50633_NUM_REGULATORS)
- return -EINVAL;
-
- millivolts = min_uV / 1000;
-
- switch (regulator_id) {
- case PCF50633_REGULATOR_AUTO:
- volt_bits = auto_voltage_bits(millivolts);
- break;
- case PCF50633_REGULATOR_DOWN1:
- case PCF50633_REGULATOR_DOWN2:
- volt_bits = down_voltage_bits(millivolts);
- break;
- case PCF50633_REGULATOR_LDO1:
- case PCF50633_REGULATOR_LDO2:
- case PCF50633_REGULATOR_LDO3:
- case PCF50633_REGULATOR_LDO4:
- case PCF50633_REGULATOR_LDO5:
- case PCF50633_REGULATOR_LDO6:
- case PCF50633_REGULATOR_HCLDO:
- case PCF50633_REGULATOR_MEMLDO:
- volt_bits = ldo_voltage_bits(millivolts);
- break;
- default:
- return -EINVAL;
- }
-
- return volt_bits;
-}
-
-static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev,
- unsigned int index)
-{
- int regulator_id = rdev_get_id(rdev);
-
- int millivolts;
-
- switch (regulator_id) {
- case PCF50633_REGULATOR_AUTO:
- millivolts = auto_voltage_value(index);
- break;
- case PCF50633_REGULATOR_DOWN1:
- case PCF50633_REGULATOR_DOWN2:
- millivolts = down_voltage_value(index);
- break;
- case PCF50633_REGULATOR_LDO1:
- case PCF50633_REGULATOR_LDO2:
- case PCF50633_REGULATOR_LDO3:
- case PCF50633_REGULATOR_LDO4:
- case PCF50633_REGULATOR_LDO5:
- case PCF50633_REGULATOR_LDO6:
- case PCF50633_REGULATOR_HCLDO:
- case PCF50633_REGULATOR_MEMLDO:
- millivolts = ldo_voltage_value(index);
- break;
- default:
- return -EINVAL;
- }
-
- return millivolts * 1000;
-}
-
static struct regulator_ops pcf50633_regulator_ops = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
- .list_voltage = pcf50633_regulator_list_voltage,
- .map_voltage = pcf50633_regulator_map_voltage,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_desc regulators[] = {
- [PCF50633_REGULATOR_AUTO] = PCF50633_REGULATOR("auto", AUTO, 128),
- [PCF50633_REGULATOR_DOWN1] = PCF50633_REGULATOR("down1", DOWN1, 96),
- [PCF50633_REGULATOR_DOWN2] = PCF50633_REGULATOR("down2", DOWN2, 96),
- [PCF50633_REGULATOR_LDO1] = PCF50633_REGULATOR("ldo1", LDO1, 28),
- [PCF50633_REGULATOR_LDO2] = PCF50633_REGULATOR("ldo2", LDO2, 28),
- [PCF50633_REGULATOR_LDO3] = PCF50633_REGULATOR("ldo3", LDO3, 28),
- [PCF50633_REGULATOR_LDO4] = PCF50633_REGULATOR("ldo4", LDO4, 28),
- [PCF50633_REGULATOR_LDO5] = PCF50633_REGULATOR("ldo5", LDO5, 28),
- [PCF50633_REGULATOR_LDO6] = PCF50633_REGULATOR("ldo6", LDO6, 28),
- [PCF50633_REGULATOR_HCLDO] = PCF50633_REGULATOR("hcldo", HCLDO, 28),
- [PCF50633_REGULATOR_MEMLDO] = PCF50633_REGULATOR("memldo", MEMLDO, 28),
+ [PCF50633_REGULATOR_AUTO] =
+ PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128),
+ [PCF50633_REGULATOR_DOWN1] =
+ PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96),
+ [PCF50633_REGULATOR_DOWN2] =
+ PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96),
+ [PCF50633_REGULATOR_LDO1] =
+ PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28),
+ [PCF50633_REGULATOR_LDO2] =
+ PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28),
+ [PCF50633_REGULATOR_LDO3] =
+ PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28),
+ [PCF50633_REGULATOR_LDO4] =
+ PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28),
+ [PCF50633_REGULATOR_LDO5] =
+ PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28),
+ [PCF50633_REGULATOR_LDO6] =
+ PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28),
+ [PCF50633_REGULATOR_HCLDO] =
+ PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28),
+ [PCF50633_REGULATOR_MEMLDO] =
+ PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28),
};
static int __devinit pcf50633_regulator_probe(struct platform_device *pdev)
diff --git a/drivers/regulator/tps51632-regulator.c b/drivers/regulator/tps51632-regulator.c
new file mode 100644
index 000000000000..7c4e8a6e1d5d
--- /dev/null
+++ b/drivers/regulator/tps51632-regulator.c
@@ -0,0 +1,327 @@
+/*
+ * tps51632-regulator.c -- TI TPS51632
+ *
+ * Regulator driver for TPS51632 3-2-1 Phase D-Cap Step Down Driverless
+ * Controller with serial VID control and DVFS.
+ *
+ * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/tps51632-regulator.h>
+#include <linux/slab.h>
+
+/* Register definitions */
+#define TPS51632_VOLTAGE_SELECT_REG 0x0
+#define TPS51632_VOLTAGE_BASE_REG 0x1
+#define TPS51632_OFFSET_REG 0x2
+#define TPS51632_IMON_REG 0x3
+#define TPS51632_VMAX_REG 0x4
+#define TPS51632_DVFS_CONTROL_REG 0x5
+#define TPS51632_POWER_STATE_REG 0x6
+#define TPS51632_SLEW_REGS 0x7
+#define TPS51632_FAULT_REG 0x14
+
+#define TPS51632_MAX_REG 0x15
+
+#define TPS51632_VOUT_MASK 0x7F
+#define TPS51632_VOUT_OFFSET_MASK 0x1F
+#define TPS51632_VMAX_MASK 0x7F
+#define TPS51632_VMAX_LOCK 0x80
+
+/* TPS51632_DVFS_CONTROL_REG */
+#define TPS51632_DVFS_PWMEN 0x1
+#define TPS51632_DVFS_STEP_20 0x2
+#define TPS51632_DVFS_VMAX_PG 0x4
+#define TPS51632_DVFS_PWMRST 0x8
+#define TPS51632_DVFS_OCA_EN 0x10
+#define TPS51632_DVFS_FCCM 0x20
+
+/* TPS51632_POWER_STATE_REG */
+#define TPS51632_POWER_STATE_MASK 0x03
+#define TPS51632_POWER_STATE_MULTI_PHASE_CCM 0x0
+#define TPS51632_POWER_STATE_SINGLE_PHASE_CCM 0x1
+#define TPS51632_POWER_STATE_SINGLE_PHASE_DCM 0x2
+
+#define TPS51632_MIN_VOLATGE 500000
+#define TPS51632_MAX_VOLATGE 1520000
+#define TPS51632_VOLATGE_STEP_10mV 10000
+#define TPS51632_VOLATGE_STEP_20mV 20000
+#define TPS51632_MAX_VSEL 0x7F
+#define TPS51632_MIN_VSEL 0x19
+#define TPS51632_DEFAULT_RAMP_DELAY 6000
+#define TPS51632_VOLT_VSEL(uV) \
+ (DIV_ROUND_UP(uV - TPS51632_MIN_VOLATGE, \
+ TPS51632_VOLATGE_STEP_10mV) + \
+ TPS51632_MIN_VSEL)
+
+/* TPS51632 chip information */
+struct tps51632_chip {
+ struct device *dev;
+ struct regulator_desc desc;
+ struct regulator_dev *rdev;
+ struct regmap *regmap;
+ bool enable_pwm_dvfs;
+};
+
+static int tps51632_dcdc_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct tps51632_chip *tps = rdev_get_drvdata(rdev);
+ unsigned int data;
+ int ret;
+ unsigned int reg = TPS51632_VOLTAGE_SELECT_REG;
+ int vsel;
+
+ if (tps->enable_pwm_dvfs)
+ reg = TPS51632_VOLTAGE_BASE_REG;
+
+ ret = regmap_read(tps->regmap, reg, &data);
+ if (ret < 0) {
+ dev_err(tps->dev, "reg read failed, err %d\n", ret);
+ return ret;
+ }
+
+ vsel = data & TPS51632_VOUT_MASK;
+ return vsel;
+}
+
+static int tps51632_dcdc_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ struct tps51632_chip *tps = rdev_get_drvdata(rdev);
+ int ret;
+ unsigned int reg = TPS51632_VOLTAGE_SELECT_REG;
+
+ if (tps->enable_pwm_dvfs)
+ reg = TPS51632_VOLTAGE_BASE_REG;
+
+ if (selector > TPS51632_MAX_VSEL)
+ return -EINVAL;
+
+ ret = regmap_write(tps->regmap, reg, selector);
+ if (ret < 0)
+ dev_err(tps->dev, "reg write failed, err %d\n", ret);
+ return ret;
+}
+
+static int tps51632_dcdc_set_ramp_delay(struct regulator_dev *rdev,
+ int ramp_delay)
+{
+ struct tps51632_chip *tps = rdev_get_drvdata(rdev);
+ int bit = ramp_delay/6000;
+ int ret;
+
+ if (bit)
+ bit--;
+ ret = regmap_write(tps->regmap, TPS51632_SLEW_REGS, BIT(bit));
+ if (ret < 0)
+ dev_err(tps->dev, "SLEW reg write failed, err %d\n", ret);
+ return ret;
+}
+
+static struct regulator_ops tps51632_dcdc_ops = {
+ .get_voltage_sel = tps51632_dcdc_get_voltage_sel,
+ .set_voltage_sel = tps51632_dcdc_set_voltage_sel,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .set_ramp_delay = tps51632_dcdc_set_ramp_delay,
+};
+
+static int __devinit tps51632_init_dcdc(struct tps51632_chip *tps,
+ struct tps51632_regulator_platform_data *pdata)
+{
+ int ret;
+ uint8_t control = 0;
+ int vsel;
+
+ if (!pdata->enable_pwm_dvfs)
+ goto skip_pwm_config;
+
+ control |= TPS51632_DVFS_PWMEN;
+ tps->enable_pwm_dvfs = pdata->enable_pwm_dvfs;
+ vsel = TPS51632_VOLT_VSEL(pdata->base_voltage_uV);
+ ret = regmap_write(tps->regmap, TPS51632_VOLTAGE_BASE_REG, vsel);
+ if (ret < 0) {
+ dev_err(tps->dev, "BASE reg write failed, err %d\n", ret);
+ return ret;
+ }
+
+ if (pdata->dvfs_step_20mV)
+ control |= TPS51632_DVFS_STEP_20;
+
+ if (pdata->max_voltage_uV) {
+ unsigned int vmax;
+ /**
+ * TPS51632 hw behavior: VMAX register can be write only
+ * once as it get locked after first write. The lock get
+ * reset only when device is power-reset.
+ * Write register only when lock bit is not enabled.
+ */
+ ret = regmap_read(tps->regmap, TPS51632_VMAX_REG, &vmax);
+ if (ret < 0) {
+ dev_err(tps->dev, "VMAX read failed, err %d\n", ret);
+ return ret;
+ }
+ if (!(vmax & TPS51632_VMAX_LOCK)) {
+ vsel = TPS51632_VOLT_VSEL(pdata->max_voltage_uV);
+ ret = regmap_write(tps->regmap, TPS51632_VMAX_REG,
+ vsel);
+ if (ret < 0) {
+ dev_err(tps->dev,
+ "VMAX write failed, err %d\n", ret);
+ return ret;
+ }
+ }
+ }
+
+skip_pwm_config:
+ ret = regmap_write(tps->regmap, TPS51632_DVFS_CONTROL_REG, control);
+ if (ret < 0)
+ dev_err(tps->dev, "DVFS reg write failed, err %d\n", ret);
+ return ret;
+}
+
+static bool rd_wr_reg(struct device *dev, unsigned int reg)
+{
+ if ((reg >= 0x8) && (reg <= 0x10))
+ return false;
+ return true;
+}
+
+static const struct regmap_config tps51632_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .writeable_reg = rd_wr_reg,
+ .readable_reg = rd_wr_reg,
+ .max_register = TPS51632_MAX_REG - 1,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int __devinit tps51632_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tps51632_regulator_platform_data *pdata;
+ struct regulator_dev *rdev;
+ struct tps51632_chip *tps;
+ int ret;
+ struct regulator_config config = { };
+
+ pdata = client->dev.platform_data;
+ if (!pdata) {
+ dev_err(&client->dev, "No Platform data\n");
+ return -EINVAL;
+ }
+
+ tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
+ if (!tps) {
+ dev_err(&client->dev, "Memory allocation failed\n");
+ return -ENOMEM;
+ }
+
+ tps->dev = &client->dev;
+ tps->desc.name = id->name;
+ tps->desc.id = 0;
+ tps->desc.ramp_delay = TPS51632_DEFAULT_RAMP_DELAY;
+ tps->desc.min_uV = TPS51632_MIN_VOLATGE;
+ tps->desc.uV_step = TPS51632_VOLATGE_STEP_10mV;
+ tps->desc.linear_min_sel = TPS51632_MIN_VSEL;
+ tps->desc.n_voltages = TPS51632_MAX_VSEL + 1;
+ tps->desc.ops = &tps51632_dcdc_ops;
+ tps->desc.type = REGULATOR_VOLTAGE;
+ tps->desc.owner = THIS_MODULE;
+
+ tps->regmap = devm_regmap_init_i2c(client, &tps51632_regmap_config);
+ if (IS_ERR(tps->regmap)) {
+ ret = PTR_ERR(tps->regmap);
+ dev_err(&client->dev, "regmap init failed, err %d\n", ret);
+ return ret;
+ }
+ i2c_set_clientdata(client, tps);
+
+ ret = tps51632_init_dcdc(tps, pdata);
+ if (ret < 0) {
+ dev_err(tps->dev, "Init failed, err = %d\n", ret);
+ return ret;
+ }
+
+ /* Register the regulators */
+ config.dev = &client->dev;
+ config.init_data = pdata->reg_init_data;
+ config.driver_data = tps;
+ config.regmap = tps->regmap;
+ config.of_node = client->dev.of_node;
+
+ rdev = regulator_register(&tps->desc, &config);
+ if (IS_ERR(rdev)) {
+ dev_err(tps->dev, "regulator register failed\n");
+ return PTR_ERR(rdev);
+ }
+
+ tps->rdev = rdev;
+ return 0;
+}
+
+static int __devexit tps51632_remove(struct i2c_client *client)
+{
+ struct tps51632_chip *tps = i2c_get_clientdata(client);
+
+ regulator_unregister(tps->rdev);
+ return 0;
+}
+
+static const struct i2c_device_id tps51632_id[] = {
+ {.name = "tps51632",},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, tps51632_id);
+
+static struct i2c_driver tps51632_i2c_driver = {
+ .driver = {
+ .name = "tps51632",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps51632_probe,
+ .remove = __devexit_p(tps51632_remove),
+ .id_table = tps51632_id,
+};
+
+static int __init tps51632_init(void)
+{
+ return i2c_add_driver(&tps51632_i2c_driver);
+}
+subsys_initcall(tps51632_init);
+
+static void __exit tps51632_cleanup(void)
+{
+ i2c_del_driver(&tps51632_i2c_driver);
+}
+module_exit(tps51632_cleanup);
+
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_DESCRIPTION("TPS51632 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/da9055/pdata.h b/include/linux/mfd/da9055/pdata.h
index 147293b4471d..f87a6c172a91 100644
--- a/include/linux/mfd/da9055/pdata.h
+++ b/include/linux/mfd/da9055/pdata.h
@@ -25,8 +25,29 @@ struct da9055_pdata {
int gpio_base;
struct regulator_init_data *regulators[DA9055_MAX_REGULATORS];
- bool reset_enable; /* Enable RTC in RESET Mode */
- enum gpio_select *gpio_rsel; /* Select regulator set thru GPIO 1/2 */
- enum gpio_select *gpio_ren; /* Enable regulator thru GPIO 1/2 */
+ /* Enable RTC in RESET Mode */
+ bool reset_enable;
+ /*
+ * GPI muxed pin to control
+ * regulator state A/B, 0 if not available.
+ */
+ int *gpio_ren;
+ /*
+ * GPI muxed pin to control
+ * regulator set, 0 if not available.
+ */
+ int *gpio_rsel;
+ /*
+ * Regulator mode control bits value (GPI offset) that
+ * that controls the regulator state, 0 if not available.
+ */
+ enum gpio_select *reg_ren;
+ /*
+ * Regulator mode control bits value (GPI offset) that
+ * controls the regulator set A/B, 0 if not available.
+ */
+ enum gpio_select *reg_rsel;
+ /* GPIOs to enable regulator, 0 if not available */
+ int *ena_gpio;
};
#endif /* __DA9055_PDATA_H */
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 7932a3bf21bd..d9ce98a5028b 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -185,6 +185,7 @@ enum regulator_type {
*
* @min_uV: Voltage given by the lowest selector (if linear mapping)
* @uV_step: Voltage increase with each selector (if linear mapping)
+ * @linear_min_sel: Minimal selector for starting linear mapping
* @ramp_delay: Time to settle down after voltage change (unit: uV/us)
* @volt_table: Voltage mapping table (if table based mapping)
*
@@ -207,6 +208,7 @@ struct regulator_desc {
unsigned int min_uV;
unsigned int uV_step;
+ unsigned int linear_min_sel;
unsigned int ramp_delay;
const unsigned int *volt_table;
diff --git a/include/linux/regulator/tps51632-regulator.h b/include/linux/regulator/tps51632-regulator.h
new file mode 100644
index 000000000000..d00841e1a75a
--- /dev/null
+++ b/include/linux/regulator/tps51632-regulator.h
@@ -0,0 +1,47 @@
+/*
+ * tps51632-regulator.h -- TPS51632 regulator
+ *
+ * Interface for regulator driver for TPS51632 3-2-1 Phase D-Cap Step Down
+ * Driverless Controller with serial VID control and DVFS.
+ *
+ * Copyright (C) 2012 NVIDIA Corporation
+
+ * Author: Laxman Dewangan <ldewangan@nvidia.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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef __LINUX_REGULATOR_TPS51632_H
+#define __LINUX_REGULATOR_TPS51632_H
+
+/*
+ * struct tps51632_regulator_platform_data - tps51632 regulator platform data.
+ *
+ * @reg_init_data: The regulator init data.
+ * @enable_pwm_dvfs: Enable PWM DVFS or not.
+ * @dvfs_step_20mV: Step for DVFS is 20mV or 10mV.
+ * @max_voltage_uV: Maximum possible voltage in PWM-DVFS mode.
+ * @base_voltage_uV: Base voltage when PWM-DVFS enabled.
+ */
+struct tps51632_regulator_platform_data {
+ struct regulator_init_data *reg_init_data;
+ bool enable_pwm_dvfs;
+ bool dvfs_step_20mV;
+ int max_voltage_uV;
+ int base_voltage_uV;
+};
+
+#endif /* __LINUX_REGULATOR_TPS51632_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 22:46:31 +0000