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Merge branches 'topic/tps51632', 'topic/tps80031', 'topic/vexpress', 'topic/max8925', 'topic/gpio' and 'topic/tps65090' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-hotplug

This commit is contained in:
Mark Brown 2012-11-20 10:30:22 +09:00
parent f4a75d2eb7 7bde76726f b92f787d14 9f4e45f77e 560615ef8b 216f2b9c95 f329b1755b
commit f86221d2b9
16 changed files with 1854 additions and 116 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
Documentation/devicetree/bindings/regulator/gpio-regulator.txt Normal file
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@ -0,0 +1,37 @@
GPIO controlled regulators
Required properties:
- compatible : Must be "regulator-gpio".
- states : Selection of available voltages and GPIO configs.
if there are no states, then use a fixed regulator
Optional properties:
- enable-gpio : GPIO to use to enable/disable the regulator.
- gpios : GPIO group used to control voltage.
- startup-delay-us : Startup time in microseconds.
- enable-active-high : Polarity of GPIO is active high (default is low).
Any property defined as part of the core regulator binding defined in
regulator.txt can also be used.
Example:
mmciv: gpio-regulator {
compatible = "regulator-gpio";
regulator-name = "mmci-gpio-supply";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2600000>;
regulator-boot-on;
enable-gpio = <&gpio0 23 0x4>;
gpios = <&gpio0 24 0x4
&gpio0 25 0x4>;
states = <1800000 0x3
2200000 0x2
2600000 0x1
2900000 0x0>;
startup-delay-us = <100000>;
enable-active-high;
};

40
Documentation/devicetree/bindings/regulator/max8925-regulator.txt Normal file
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@ -0,0 +1,40 @@
Max8925 Voltage regulators
Required nodes:
-nodes:
- SDV1 for SDV SDV1
- SDV2 for SDV SDV2
- SDV3 for SDV SDV3
- LDO1 for LDO LDO1
- LDO2 for LDO LDO2
- LDO3 for LDO LDO3
- LDO4 for LDO LDO4
- LDO5 for LDO LDO5
- LDO6 for LDO LDO6
- LDO7 for LDO LDO7
- LDO8 for LDO LDO8
- LDO9 for LDO LDO9
- LDO10 for LDO LDO10
- LDO11 for LDO LDO11
- LDO12 for LDO LDO12
- LDO13 for LDO LDO13
- LDO14 for LDO LDO14
- LDO15 for LDO LDO15
- LDO16 for LDO LDO16
- LDO17 for LDO LDO17
- LDO18 for LDO LDO18
- LDO19 for LDO LDO19
- LDO20 for LDO LDO20
Optional properties:
- Any optional property defined in bindings/regulator/regulator.txt
Example:
SDV1 {
regulator-min-microvolt = <637500>;
regulator-max-microvolt = <1425000>;
regulator-boot-on;
regulator-always-on;
};

32
Documentation/devicetree/bindings/regulator/vexpress.txt Normal file
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@ -0,0 +1,32 @@
Versatile Express voltage regulators
------------------------------------
Requires node properties:
- "compatible" value: "arm,vexpress-volt"
- "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg
(see Documentation/devicetree/bindings/arm/vexpress-sysreg.txt
for more details)
Required regulator properties:
- "regulator-name"
- "regulator-always-on"
Optional regulator properties:
- "regulator-min-microvolt"
- "regulator-max-microvolt"
See Documentation/devicetree/bindings/regulator/regulator.txt
for more details about the regulator properties.
When no "regulator-[min|max]-microvolt" properties are defined,
the device is treated as fixed (or rather "read-only") regulator.
Example:
volt@0 {
compatible = "arm,vexpress-volt";
arm,vexpress-sysreg,func = <2 0>;
regulator-name = "Cores";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1050000>;
regulator-always-on;
};

27
drivers/regulator/Kconfig
View File

@ -335,6 +335,17 @@ 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
@ -415,6 +426,15 @@ config REGULATOR_TPS65912
help
This driver supports TPS65912 voltage regulator chip.
config REGULATOR_TPS80031
tristate "TI TPS80031/TPS80032 power regualtor driver"
depends on MFD_TPS80031
help
TPS80031/ TPS80032 Fully Integrated Power Management with Power
Path and Battery Charger. It has 5 configurable step-down
converters, 11 general purpose LDOs, VBUS generator and digital
output to control regulators.
config REGULATOR_TWL4030
bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
depends on TWL4030_CORE
@ -422,6 +442,13 @@ config REGULATOR_TWL4030
This driver supports the voltage regulators provided by
this family of companion chips.
config REGULATOR_VEXPRESS
tristate "Versatile Express regulators"
depends on VEXPRESS_CONFIG
help
This driver provides support for voltage regulators available
on the ARM Ltd's Versatile Express platform.
config REGULATOR_WM831X
tristate "Wolfson Microelectronics WM831x PMIC regulators"
depends on MFD_WM831X

3
drivers/regulator/Makefile
View File

@ -41,6 +41,7 @@ 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
@ -56,7 +57,9 @@ obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o
obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o
obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-ldo.o

5
drivers/regulator/core.c
View File

@ -1985,6 +1985,11 @@ int regulator_is_supported_voltage(struct regulator *regulator,
return ret;
}
/* Any voltage within constrains range is fine? */
if (rdev->desc->continuous_voltage_range)
return min_uV >= rdev->constraints->min_uV &&
max_uV <= rdev->constraints->max_uV;
ret = regulator_count_voltages(regulator);
if (ret < 0)
return ret;

100
drivers/regulator/gpio-regulator.c
View File

@ -28,9 +28,12 @@
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/gpio-regulator.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
struct gpio_regulator_data {
struct regulator_desc desc;
@ -129,6 +132,89 @@ static struct regulator_ops gpio_regulator_voltage_ops = {
.list_voltage = gpio_regulator_list_voltage,
};
struct gpio_regulator_config *
of_get_gpio_regulator_config(struct device *dev, struct device_node *np)
{
struct gpio_regulator_config *config;
struct property *prop;
const char *regtype;
int proplen, gpio, i;
config = devm_kzalloc(dev,
sizeof(struct gpio_regulator_config),
GFP_KERNEL);
if (!config)
return ERR_PTR(-ENOMEM);
config->init_data = of_get_regulator_init_data(dev, np);
if (!config->init_data)
return ERR_PTR(-EINVAL);
config->supply_name = config->init_data->constraints.name;
if (of_property_read_bool(np, "enable-active-high"))
config->enable_high = true;
if (of_property_read_bool(np, "enable-at-boot"))
config->enabled_at_boot = true;
of_property_read_u32(np, "startup-delay-us", &config->startup_delay);
config->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0);
/* Fetch GPIOs. */
for (i = 0; ; i++)
if (of_get_named_gpio(np, "gpios", i) < 0)
break;
config->nr_gpios = i;
config->gpios = devm_kzalloc(dev,
sizeof(struct gpio) * config->nr_gpios,
GFP_KERNEL);
if (!config->gpios)
return ERR_PTR(-ENOMEM);
for (i = 0; config->nr_gpios; i++) {
gpio = of_get_named_gpio(np, "gpios", i);
if (gpio < 0)
break;
config->gpios[i].gpio = gpio;
}
/* Fetch states. */
prop = of_find_property(np, "states", NULL);
if (!prop) {
dev_err(dev, "No 'states' property found\n");
return ERR_PTR(-EINVAL);
}
proplen = prop->length / sizeof(int);
config->states = devm_kzalloc(dev,
sizeof(struct gpio_regulator_state)
* (proplen / 2),
GFP_KERNEL);
if (!config->states)
return ERR_PTR(-ENOMEM);
for (i = 0; i < proplen / 2; i++) {
config->states[i].value =
be32_to_cpup((int *)prop->value + (i * 2));
config->states[i].gpios =
be32_to_cpup((int *)prop->value + (i * 2 + 1));
}
config->nr_states = i;
of_property_read_string(np, "regulator-type", &regtype);
if (!strncmp("voltage", regtype, 7))
config->type = REGULATOR_VOLTAGE;
else if (!strncmp("current", regtype, 7))
config->type = REGULATOR_CURRENT;
return config;
}
static struct regulator_ops gpio_regulator_current_ops = {
.get_current_limit = gpio_regulator_get_value,
.set_current_limit = gpio_regulator_set_current_limit,
@ -137,10 +223,17 @@ static struct regulator_ops gpio_regulator_current_ops = {
static int __devinit gpio_regulator_probe(struct platform_device *pdev)
{
struct gpio_regulator_config *config = pdev->dev.platform_data;
struct device_node *np = pdev->dev.of_node;
struct gpio_regulator_data *drvdata;
struct regulator_config cfg = { };
int ptr, ret, state;
if (np) {
config = of_get_gpio_regulator_config(&pdev->dev, np);
if (IS_ERR(config))
return PTR_ERR(config);
}
drvdata = devm_kzalloc(&pdev->dev, sizeof(struct gpio_regulator_data),
GFP_KERNEL);
if (drvdata == NULL) {
@ -215,6 +308,7 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev)
cfg.dev = &pdev->dev;
cfg.init_data = config->init_data;
cfg.driver_data = drvdata;
cfg.of_node = np;
if (config->enable_gpio >= 0)
cfg.ena_gpio = config->enable_gpio;
@ -270,12 +364,18 @@ static int __devexit gpio_regulator_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id regulator_gpio_of_match[] __devinitconst = {
{ .compatible = "regulator-gpio", },
{},
};
static struct platform_driver gpio_regulator_driver = {
.probe = gpio_regulator_probe,
.remove = __devexit_p(gpio_regulator_remove),
.driver = {
.name = "gpio-regulator",
.owner = THIS_MODULE,
.of_match_table = regulator_gpio_of_match,
},
};

72
drivers/regulator/max8925-regulator.c
View File

@ -17,6 +17,8 @@
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/max8925.h>
#include <linux/of.h>
#include <linux/regulator/of_regulator.h>
#define SD1_DVM_VMIN 850000
#define SD1_DVM_VMAX 1000000
@ -187,6 +189,34 @@ static struct regulator_ops max8925_regulator_ldo_ops = {
.enable_reg = MAX8925_LDOCTL##_id, \
}
#ifdef CONFIG_OF
static struct of_regulator_match max8925_regulator_matches[] = {
{ .name = "SDV1",},
{ .name = "SDV2",},
{ .name = "SDV3",},
{ .name = "LDO1",},
{ .name = "LDO2",},
{ .name = "LDO3",},
{ .name = "LDO4",},
{ .name = "LDO5",},
{ .name = "LDO6",},
{ .name = "LDO7",},
{ .name = "LDO8",},
{ .name = "LDO9",},
{ .name = "LDO10",},
{ .name = "LDO11",},
{ .name = "LDO12",},
{ .name = "LDO13",},
{ .name = "LDO14",},
{ .name = "LDO15",},
{ .name = "LDO16",},
{ .name = "LDO17",},
{ .name = "LDO18",},
{ .name = "LDO19",},
{ .name = "LDO20",},
};
#endif
static struct max8925_regulator_info max8925_regulator_info[] = {
MAX8925_SDV(1, 637.5, 1425, 12.5),
MAX8925_SDV(2, 650, 2225, 25),
@ -214,6 +244,36 @@ static struct max8925_regulator_info max8925_regulator_info[] = {
MAX8925_LDO(20, 750, 3900, 50),
};
#ifdef CONFIG_OF
static int max8925_regulator_dt_init(struct platform_device *pdev,
struct max8925_regulator_info *info,
struct regulator_config *config,
int ridx)
{
struct device_node *nproot, *np;
int rcount;
nproot = pdev->dev.parent->of_node;
if (!nproot)
return -ENODEV;
np = of_find_node_by_name(nproot, "regulators");
if (!np) {
dev_err(&pdev->dev, "failed to find regulators node\n");
return -ENODEV;
}
rcount = of_regulator_match(&pdev->dev, np,
&max8925_regulator_matches[ridx], 1);
if (rcount < 0)
return -ENODEV;
config->init_data = max8925_regulator_matches[ridx].init_data;
config->of_node = max8925_regulator_matches[ridx].of_node;
return 0;
}
#else
#define max8925_regulator_dt_init(w, x, y, z) (-1)
#endif
static int __devinit max8925_regulator_probe(struct platform_device *pdev)
{
struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
@ -222,7 +282,7 @@ static int __devinit max8925_regulator_probe(struct platform_device *pdev)
struct max8925_regulator_info *ri;
struct resource *res;
struct regulator_dev *rdev;
int i;
int i, regulator_idx;
res = platform_get_resource(pdev, IORESOURCE_REG, 0);
if (!res) {
@ -231,9 +291,12 @@ static int __devinit max8925_regulator_probe(struct platform_device *pdev)
}
for (i = 0; i < ARRAY_SIZE(max8925_regulator_info); i++) {
ri = &max8925_regulator_info[i];
if (ri->vol_reg == res->start)
if (ri->vol_reg == res->start) {
regulator_idx = i;
break;
}
}
if (i == ARRAY_SIZE(max8925_regulator_info)) {
dev_err(&pdev->dev, "Failed to find regulator %llu\n",
(unsigned long long)res->start);
@ -243,9 +306,12 @@ static int __devinit max8925_regulator_probe(struct platform_device *pdev)
ri->chip = chip;
config.dev = &pdev->dev;
config.init_data = pdata;
config.driver_data = ri;
if (max8925_regulator_dt_init(pdev, ri, &config, regulator_idx))
if (pdata)
config.init_data = pdata;
rdev = regulator_register(&ri->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",

332
drivers/regulator/tps51632-regulator.c Normal file
View File

@ -0,0 +1,332 @@
/*
* 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;
if (vsel < TPS51632_MIN_VSEL)
return 0;
else
return vsel - TPS51632_MIN_VSEL;
}
static int tps51632_dcdc_set_voltage_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct tps51632_chip *tps = rdev_get_drvdata(rdev);
int vsel;
int ret;
unsigned int reg = TPS51632_VOLTAGE_SELECT_REG;
if (tps->enable_pwm_dvfs)
reg = TPS51632_VOLTAGE_BASE_REG;
vsel = selector + TPS51632_MIN_VSEL;
if (vsel > TPS51632_MAX_VSEL)
return -EINVAL;
ret = regmap_write(tps->regmap, TPS51632_VOLTAGE_SELECT_REG, vsel);
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.n_voltages = (TPS51632_MAX_VSEL - TPS51632_MIN_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");

247
drivers/regulator/tps65090-regulator.c
View File

@ -18,67 +18,124 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/tps65090.h>
#include <linux/regulator/tps65090-regulator.h>
struct tps65090_regulator {
int id;
/* used by regulator core */
struct regulator_desc desc;
/* Device */
struct device *dev;
struct regulator_desc *desc;
struct regulator_dev *rdev;
};
static struct regulator_ops tps65090_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
static struct regulator_ops tps65090_ext_control_ops = {
};
#define tps65090_REG(_id) \
static struct regulator_ops tps65090_reg_contol_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static struct regulator_ops tps65090_ldo_ops = {
};
#define tps65090_REG_DESC(_id, _sname, _en_reg, _ops) \
{ \
.id = TPS65090_ID_##_id, \
.desc = { \
.name = tps65090_rails(_id), \
.id = TPS65090_ID_##_id, \
.ops = &tps65090_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_reg = (TPS65090_ID_##_id) + 12, \
.enable_mask = BIT(0), \
}, \
.name = "TPS65090_RAILS"#_id, \
.supply_name = _sname, \
.id = TPS65090_REGULATOR_##_id, \
.ops = &_ops, \
.enable_reg = _en_reg, \
.enable_mask = BIT(0), \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
static struct tps65090_regulator TPS65090_regulator[] = {
tps65090_REG(DCDC1),
tps65090_REG(DCDC2),
tps65090_REG(DCDC3),
tps65090_REG(FET1),
tps65090_REG(FET2),
tps65090_REG(FET3),
tps65090_REG(FET4),
tps65090_REG(FET5),
tps65090_REG(FET6),
tps65090_REG(FET7),
static struct regulator_desc tps65090_regulator_desc[] = {
tps65090_REG_DESC(DCDC1, "vsys1", 0x0C, tps65090_reg_contol_ops),
tps65090_REG_DESC(DCDC2, "vsys2", 0x0D, tps65090_reg_contol_ops),
tps65090_REG_DESC(DCDC3, "vsys3", 0x0E, tps65090_reg_contol_ops),
tps65090_REG_DESC(FET1, "infet1", 0x0F, tps65090_reg_contol_ops),
tps65090_REG_DESC(FET2, "infet2", 0x10, tps65090_reg_contol_ops),
tps65090_REG_DESC(FET3, "infet3", 0x11, tps65090_reg_contol_ops),
tps65090_REG_DESC(FET4, "infet4", 0x12, tps65090_reg_contol_ops),
tps65090_REG_DESC(FET5, "infet5", 0x13, tps65090_reg_contol_ops),
tps65090_REG_DESC(FET6, "infet6", 0x14, tps65090_reg_contol_ops),
tps65090_REG_DESC(FET7, "infet7", 0x15, tps65090_reg_contol_ops),
tps65090_REG_DESC(LDO1, "vsys_l1", 0, tps65090_ldo_ops),
tps65090_REG_DESC(LDO2, "vsys_l2", 0, tps65090_ldo_ops),
};
static inline struct tps65090_regulator *find_regulator_info(int id)
static inline bool is_dcdc(int id)
{
struct tps65090_regulator *ri;
int i;
for (i = 0; i < ARRAY_SIZE(TPS65090_regulator); i++) {
ri = &TPS65090_regulator[i];
if (ri->desc.id == id)
return ri;
switch (id) {
case TPS65090_REGULATOR_DCDC1:
case TPS65090_REGULATOR_DCDC2:
case TPS65090_REGULATOR_DCDC3:
return true;
default:
return false;
}
}
static int __devinit tps65090_config_ext_control(
struct tps65090_regulator *ri, bool enable)
{
int ret;
struct device *parent = ri->dev->parent;
unsigned int reg_en_reg = ri->desc->enable_reg;
if (enable)
ret = tps65090_set_bits(parent, reg_en_reg, 1);
else
ret = tps65090_clr_bits(parent, reg_en_reg, 1);
if (ret < 0)
dev_err(ri->dev, "Error in updating reg 0x%x\n", reg_en_reg);
return ret;
}
static int __devinit tps65090_regulator_disable_ext_control(
struct tps65090_regulator *ri,
struct tps65090_regulator_plat_data *tps_pdata)
{
int ret = 0;
struct device *parent = ri->dev->parent;
unsigned int reg_en_reg = ri->desc->enable_reg;
/*
* First enable output for internal control if require.
* And then disable external control.
*/
if (tps_pdata->reg_init_data->constraints.always_on ||
tps_pdata->reg_init_data->constraints.boot_on) {
ret = tps65090_set_bits(parent, reg_en_reg, 0);
if (ret < 0) {
dev_err(ri->dev, "Error in set reg 0x%x\n", reg_en_reg);
return ret;
}
}
return tps65090_config_ext_control(ri, false);
}
static void __devinit tps65090_configure_regulator_config(
struct tps65090_regulator_plat_data *tps_pdata,
struct regulator_config *config)
{
if (gpio_is_valid(tps_pdata->gpio)) {
int gpio_flag = GPIOF_OUT_INIT_LOW;
if (tps_pdata->reg_init_data->constraints.always_on ||
tps_pdata->reg_init_data->constraints.boot_on)
gpio_flag = GPIOF_OUT_INIT_HIGH;
config->ena_gpio = tps_pdata->gpio;
config->ena_gpio_flags = gpio_flag;
}
return NULL;
}
static int __devinit tps65090_regulator_probe(struct platform_device *pdev)
@ -87,46 +144,110 @@ static int __devinit tps65090_regulator_probe(struct platform_device *pdev)
struct tps65090_regulator *ri = NULL;
struct regulator_config config = { };
struct regulator_dev *rdev;
struct tps65090_regulator_platform_data *tps_pdata;
int id = pdev->id;
struct tps65090_regulator_plat_data *tps_pdata;
struct tps65090_regulator *pmic;
struct tps65090_platform_data *tps65090_pdata;
int num;
int ret;
dev_dbg(&pdev->dev, "Probing regulator %d\n", id);
dev_dbg(&pdev->dev, "Probing regulator\n");
ri = find_regulator_info(id);
if (ri == NULL) {
dev_err(&pdev->dev, "invalid regulator ID specified\n");
tps65090_pdata = dev_get_platdata(pdev->dev.parent);
if (!tps65090_pdata) {
dev_err(&pdev->dev, "Platform data missing\n");
return -EINVAL;
}
tps_pdata = pdev->dev.platform_data;
ri->dev = &pdev->dev;
config.dev = &pdev->dev;
config.init_data = &tps_pdata->regulator;
config.driver_data = ri;
config.regmap = tps65090_mfd->rmap;
rdev = regulator_register(&ri->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
ri->desc.name);
return PTR_ERR(rdev);
pmic = devm_kzalloc(&pdev->dev, TPS65090_REGULATOR_MAX * sizeof(*pmic),
GFP_KERNEL);
if (!pmic) {
dev_err(&pdev->dev, "mem alloc for pmic failed\n");
return -ENOMEM;
}
platform_set_drvdata(pdev, rdev);
for (num = 0; num < TPS65090_REGULATOR_MAX; num++) {
tps_pdata = tps65090_pdata->reg_pdata[num];
ri = &pmic[num];
ri->dev = &pdev->dev;
ri->desc = &tps65090_regulator_desc[num];
/*
* TPS5090 DCDC support the control from external digital input.
* Configure it as per platform data.
*/
if (tps_pdata && is_dcdc(num) && tps_pdata->reg_init_data) {
if (tps_pdata->enable_ext_control) {
tps65090_configure_regulator_config(
tps_pdata, &config);
ri->desc->ops = &tps65090_ext_control_ops;
} else {
ret = tps65090_regulator_disable_ext_control(
ri, tps_pdata);
if (ret < 0) {
dev_err(&pdev->dev,
"failed disable ext control\n");
goto scrub;
}
}
}
config.dev = &pdev->dev;
config.driver_data = ri;
config.regmap = tps65090_mfd->rmap;
if (tps_pdata)
config.init_data = tps_pdata->reg_init_data;
else
config.init_data = NULL;
rdev = regulator_register(ri->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
ri->desc->name);
ret = PTR_ERR(rdev);
goto scrub;
}
ri->rdev = rdev;
/* Enable external control if it is require */
if (tps_pdata && is_dcdc(num) && tps_pdata->reg_init_data &&
tps_pdata->enable_ext_control) {
ret = tps65090_config_ext_control(ri, true);
if (ret < 0) {
/* Increment num to get unregister rdev */
num++;
goto scrub;
}
}
}
platform_set_drvdata(pdev, pmic);
return 0;
scrub:
while (--num >= 0) {
ri = &pmic[num];
regulator_unregister(ri->rdev);
}
return ret;
}
static int __devexit tps65090_regulator_remove(struct platform_device *pdev)
{
struct regulator_dev *rdev = platform_get_drvdata(pdev);
struct tps65090_regulator *pmic = platform_get_drvdata(pdev);
struct tps65090_regulator *ri;
int num;
regulator_unregister(rdev);
for (num = 0; num < TPS65090_REGULATOR_MAX; ++num) {
ri = &pmic[num];
regulator_unregister(ri->rdev);
}
return 0;
}
static struct platform_driver tps65090_regulator_driver = {
.driver = {
.name = "tps65090-regulator",
.name = "tps65090-pmic",
.owner = THIS_MODULE,
},
.probe = tps65090_regulator_probe,

793
drivers/regulator/tps80031-regulator.c Normal file
View File

@ -0,0 +1,793 @@
/*
* tps80031-regulator.c -- TI TPS80031 regulator driver.
*
* Regulator driver for TITPS80031/TPS80032 Fully Integrated Power
* Management with Power Path and Battery Charger.
*
* 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/delay.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mfd/tps80031.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/slab.h>
/* Flags for DCDC Voltage reading */
#define DCDC_OFFSET_EN BIT(0)
#define DCDC_EXTENDED_EN BIT(1)
#define TRACK_MODE_ENABLE BIT(2)
#define SMPS_MULTOFFSET_VIO BIT(1)
#define SMPS_MULTOFFSET_SMPS1 BIT(3)
#define SMPS_MULTOFFSET_SMPS2 BIT(4)
#define SMPS_MULTOFFSET_SMPS3 BIT(6)
#define SMPS_MULTOFFSET_SMPS4 BIT(0)
#define SMPS_CMD_MASK 0xC0
#define SMPS_VSEL_MASK 0x3F
#define LDO_VSEL_MASK 0x1F
#define LDO_TRACK_VSEL_MASK 0x3F
#define MISC2_LDOUSB_IN_VSYS BIT(4)
#define MISC2_LDOUSB_IN_PMID BIT(3)
#define MISC2_LDOUSB_IN_MASK 0x18
#define MISC2_LDO3_SEL_VIB_VAL BIT(0)
#define MISC2_LDO3_SEL_VIB_MASK 0x1
#define BOOST_HW_PWR_EN BIT(5)
#define BOOST_HW_PWR_EN_MASK BIT(5)
#define OPA_MODE_EN BIT(6)
#define OPA_MODE_EN_MASK BIT(6)
#define USB_VBUS_CTRL_SET 0x04
#define USB_VBUS_CTRL_CLR 0x05
#define VBUS_DISCHRG 0x20
struct tps80031_regulator_info {
/* Regulator register address.*/
u8 trans_reg;
u8 state_reg;
u8 force_reg;
u8 volt_reg;
u8 volt_id;
/*Power request bits */
int preq_bit;
/* used by regulator core */
struct regulator_desc desc;
};
struct tps80031_regulator {
struct device *dev;
struct regulator_dev *rdev;
struct tps80031_regulator_info *rinfo;
u8 device_flags;
unsigned int config_flags;
unsigned int ext_ctrl_flag;
};
static inline struct device *to_tps80031_dev(struct regulator_dev *rdev)
{
return rdev_get_dev(rdev)->parent->parent;
}
static int tps80031_reg_is_enabled(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
u8 reg_val;
int ret;
if (ri->ext_ctrl_flag & TPS80031_EXT_PWR_REQ)
return true;
ret = tps80031_read(parent, TPS80031_SLAVE_ID1, ri->rinfo->state_reg,
&reg_val);
if (ret < 0) {
dev_err(&rdev->dev, "Reg 0x%02x read failed, err = %d\n",
ri->rinfo->state_reg, ret);
return ret;
}
return ((reg_val & TPS80031_STATE_MASK) == TPS80031_STATE_ON);
}
static int tps80031_reg_enable(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret;
if (ri->ext_ctrl_flag & TPS80031_EXT_PWR_REQ)
return 0;
ret = tps80031_update(parent, TPS80031_SLAVE_ID1, ri->rinfo->state_reg,
TPS80031_STATE_ON, TPS80031_STATE_MASK);
if (ret < 0) {
dev_err(&rdev->dev, "Reg 0x%02x update failed, err = %d\n",
ri->rinfo->state_reg, ret);
return ret;
}
return ret;
}
static int tps80031_reg_disable(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret;
if (ri->ext_ctrl_flag & TPS80031_EXT_PWR_REQ)
return 0;
ret = tps80031_update(parent, TPS80031_SLAVE_ID1, ri->rinfo->state_reg,
TPS80031_STATE_OFF, TPS80031_STATE_MASK);
if (ret < 0)
dev_err(&rdev->dev, "Reg 0x%02x update failed, err = %d\n",
ri->rinfo->state_reg, ret);
return ret;
}
/* DCDC voltages for the selector of 58 to 63 */
static int tps80031_dcdc_voltages[4][5] = {
{ 1350, 1500, 1800, 1900, 2100},
{ 1350, 1500, 1800, 1900, 2100},
{ 2084, 2315, 2778, 2932, 3241},
{ 4167, 2315, 2778, 2932, 3241},
};
static int tps80031_dcdc_list_voltage(struct regulator_dev *rdev, unsigned sel)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
int volt_index = ri->device_flags & 0x3;
if (sel == 0)
return 0;
else if (sel < 58)
return regulator_list_voltage_linear(rdev, sel - 1);
else
return tps80031_dcdc_voltages[volt_index][sel - 58] * 1000;
}
static int tps80031_dcdc_set_voltage_sel(struct regulator_dev *rdev,
unsigned vsel)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret;
u8 reg_val;
if (ri->rinfo->force_reg) {
ret = tps80031_read(parent, ri->rinfo->volt_id,
ri->rinfo->force_reg, &reg_val);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
ri->rinfo->force_reg, ret);
return ret;
}
if (!(reg_val & SMPS_CMD_MASK)) {
ret = tps80031_update(parent, ri->rinfo->volt_id,
ri->rinfo->force_reg, vsel, SMPS_VSEL_MASK);
if (ret < 0)
dev_err(ri->dev,
"reg 0x%02x update failed, e = %d\n",
ri->rinfo->force_reg, ret);
return ret;
}
}
ret = tps80031_update(parent, ri->rinfo->volt_id,
ri->rinfo->volt_reg, vsel, SMPS_VSEL_MASK);
if (ret < 0)
dev_err(ri->dev, "reg 0x%02x update failed, e = %d\n",
ri->rinfo->volt_reg, ret);
return ret;
}
static int tps80031_dcdc_get_voltage_sel(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
uint8_t vsel = 0;
int ret;
if (ri->rinfo->force_reg) {
ret = tps80031_read(parent, ri->rinfo->volt_id,
ri->rinfo->force_reg, &vsel);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
ri->rinfo->force_reg, ret);
return ret;
}
if (!(vsel & SMPS_CMD_MASK))
return vsel & SMPS_VSEL_MASK;
}
ret = tps80031_read(parent, ri->rinfo->volt_id,
ri->rinfo->volt_reg, &vsel);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
ri->rinfo->volt_reg, ret);
return ret;
}
return vsel & SMPS_VSEL_MASK;
}
static int tps80031_ldo_set_voltage_sel(struct regulator_dev *rdev,
unsigned sel)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret;
/* Check for valid setting for TPS80031 or TPS80032-ES1.0 */
if ((ri->rinfo->desc.id == TPS80031_REGULATOR_LDO2) &&
(ri->device_flags & TRACK_MODE_ENABLE)) {
unsigned nvsel = (sel) & 0x1F;
if (((tps80031_get_chip_info(parent) == TPS80031) ||
((tps80031_get_chip_info(parent) == TPS80032) &&
(tps80031_get_pmu_version(parent) == 0x0))) &&
((nvsel == 0x0) || (nvsel >= 0x19 && nvsel <= 0x1F))) {
dev_err(ri->dev,
"Invalid sel %d in track mode LDO2\n",
nvsel);
return -EINVAL;
}
}
ret = tps80031_write(parent, ri->rinfo->volt_id,
ri->rinfo->volt_reg, sel);
if (ret < 0)
dev_err(ri->dev, "Error in writing reg 0x%02x, e = %d\n",
ri->rinfo->volt_reg, ret);
return ret;
}
static int tps80031_ldo_get_voltage_sel(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
uint8_t vsel;
int ret;
ret = tps80031_read(parent, ri->rinfo->volt_id,
ri->rinfo->volt_reg, &vsel);
if (ret < 0) {
dev_err(ri->dev, "Error in writing the Voltage register\n");
return ret;
}
return vsel & rdev->desc->vsel_mask;
}
static int tps80031_ldo_list_voltage(struct regulator_dev *rdev, unsigned sel)
{
if (sel == 0)
return 0;
else
return regulator_list_voltage_linear(rdev, sel - 1);
}
static int tps80031_vbus_is_enabled(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret = -EIO;
uint8_t ctrl1 = 0;
uint8_t ctrl3 = 0;
ret = tps80031_read(parent, TPS80031_SLAVE_ID2,
TPS80031_CHARGERUSB_CTRL1, &ctrl1);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
TPS80031_CHARGERUSB_CTRL1, ret);
return ret;
}
ret = tps80031_read(parent, TPS80031_SLAVE_ID2,
TPS80031_CHARGERUSB_CTRL3, &ctrl3);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
TPS80031_CHARGERUSB_CTRL1, ret);
return ret;
}
if ((ctrl1 & OPA_MODE_EN) && (ctrl3 & BOOST_HW_PWR_EN))
return 1;
return ret;
}
static int tps80031_vbus_enable(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret;
ret = tps80031_set_bits(parent, TPS80031_SLAVE_ID2,
TPS80031_CHARGERUSB_CTRL1, OPA_MODE_EN);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
TPS80031_CHARGERUSB_CTRL1, ret);
return ret;
}
ret = tps80031_set_bits(parent, TPS80031_SLAVE_ID2,
TPS80031_CHARGERUSB_CTRL3, BOOST_HW_PWR_EN);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
TPS80031_CHARGERUSB_CTRL3, ret);
return ret;
}
return ret;
}
static int tps80031_vbus_disable(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret = 0;
if (ri->config_flags & TPS80031_VBUS_DISCHRG_EN_PDN) {
ret = tps80031_write(parent, TPS80031_SLAVE_ID2,
USB_VBUS_CTRL_SET, VBUS_DISCHRG);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x write failed, e = %d\n",
USB_VBUS_CTRL_SET, ret);
return ret;
}
}
ret = tps80031_clr_bits(parent, TPS80031_SLAVE_ID2,
TPS80031_CHARGERUSB_CTRL1, OPA_MODE_EN);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x clearbit failed, e = %d\n",
TPS80031_CHARGERUSB_CTRL1, ret);
return ret;
}
ret = tps80031_clr_bits(parent, TPS80031_SLAVE_ID2,
TPS80031_CHARGERUSB_CTRL3, BOOST_HW_PWR_EN);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x clearbit failed, e = %d\n",
TPS80031_CHARGERUSB_CTRL3, ret);
return ret;
}
mdelay(DIV_ROUND_UP(ri->rinfo->desc.enable_time, 1000));
if (ri->config_flags & TPS80031_VBUS_DISCHRG_EN_PDN) {
ret = tps80031_write(parent, TPS80031_SLAVE_ID2,
USB_VBUS_CTRL_CLR, VBUS_DISCHRG);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x write failed, e = %d\n",
USB_VBUS_CTRL_CLR, ret);
return ret;
}
}
return ret;
}
static struct regulator_ops tps80031_dcdc_ops = {
.list_voltage = tps80031_dcdc_list_voltage,
.set_voltage_sel = tps80031_dcdc_set_voltage_sel,
.get_voltage_sel = tps80031_dcdc_get_voltage_sel,
.enable = tps80031_reg_enable,
.disable = tps80031_reg_disable,
.is_enabled = tps80031_reg_is_enabled,
};
static struct regulator_ops tps80031_ldo_ops = {
.list_voltage = tps80031_ldo_list_voltage,
.set_voltage_sel = tps80031_ldo_set_voltage_sel,
.get_voltage_sel = tps80031_ldo_get_voltage_sel,
.enable = tps80031_reg_enable,
.disable = tps80031_reg_disable,
.is_enabled = tps80031_reg_is_enabled,
};
static struct regulator_ops tps80031_vbus_sw_ops = {
.enable = tps80031_vbus_enable,
.disable = tps80031_vbus_disable,
.is_enabled = tps80031_vbus_is_enabled,
};
static struct regulator_ops tps80031_vbus_hw_ops = {
};
static struct regulator_ops tps80031_ext_reg_ops = {
.enable = tps80031_reg_enable,
.disable = tps80031_reg_disable,
.is_enabled = tps80031_reg_is_enabled,
};
/* Non-exiting default definition for some register */
#define TPS80031_SMPS3_CFG_FORCE 0
#define TPS80031_SMPS4_CFG_FORCE 0
#define TPS80031_VBUS_CFG_TRANS 0
#define TPS80031_VBUS_CFG_STATE 0
#define TPS80031_REG_SMPS(_id, _volt_id, _pbit) \
{ \
.trans_reg = TPS80031_##_id##_CFG_TRANS, \
.state_reg = TPS80031_##_id##_CFG_STATE, \
.force_reg = TPS80031_##_id##_CFG_FORCE, \
.volt_reg = TPS80031_##_id##_CFG_VOLTAGE, \
.volt_id = TPS80031_SLAVE_##_volt_id, \
.preq_bit = _pbit, \
.desc = { \
.name = "tps80031_"#_id, \
.id = TPS80031_REGULATOR_##_id, \
.n_voltages = 63, \
.ops = &tps80031_dcdc_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_time = 500, \
}, \
}
#define TPS80031_REG_LDO(_id, _preq_bit) \
{ \
.trans_reg = TPS80031_##_id##_CFG_TRANS, \
.state_reg = TPS80031_##_id##_CFG_STATE, \
.volt_reg = TPS80031_##_id##_CFG_VOLTAGE, \
.volt_id = TPS80031_SLAVE_ID1, \
.preq_bit = _preq_bit, \
.desc = { \
.owner = THIS_MODULE, \
.name = "tps80031_"#_id, \
.id = TPS80031_REGULATOR_##_id, \
.ops = &tps80031_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = 1000000, \
.uV_step = 100000, \
.n_voltages = 25, \
.vsel_mask = LDO_VSEL_MASK, \
.enable_time = 500, \
}, \
}
#define TPS80031_REG_FIXED(_id, max_mV, _ops, _delay, _pbit) \
{ \
.trans_reg = TPS80031_##_id##_CFG_TRANS, \
.state_reg = TPS80031_##_id##_CFG_STATE, \
.volt_id = TPS80031_SLAVE_ID1, \
.preq_bit = _pbit, \
.desc = { \
.name = "tps80031_"#_id, \
.id = TPS80031_REGULATOR_##_id, \
.n_voltages = 2, \
.ops = &_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_time = _delay, \
}, \
}
static struct tps80031_regulator_info tps80031_rinfo[TPS80031_REGULATOR_MAX] = {
TPS80031_REG_SMPS(VIO, ID0, 4),
TPS80031_REG_SMPS(SMPS1, ID0, 0),
TPS80031_REG_SMPS(SMPS2, ID0, 1),
TPS80031_REG_SMPS(SMPS3, ID1, 2),
TPS80031_REG_SMPS(SMPS4, ID1, 3),
TPS80031_REG_LDO(VANA, -1),
TPS80031_REG_LDO(LDO1, 8),
TPS80031_REG_LDO(LDO2, 9),
TPS80031_REG_LDO(LDO3, 10),
TPS80031_REG_LDO(LDO4, 11),
TPS80031_REG_LDO(LDO5, 12),
TPS80031_REG_LDO(LDO6, 13),
TPS80031_REG_LDO(LDO7, 14),
TPS80031_REG_LDO(LDOLN, 15),
TPS80031_REG_LDO(LDOUSB, 5),
TPS80031_REG_FIXED(VBUS, 5000, tps80031_vbus_hw_ops, 100000, -1),
TPS80031_REG_FIXED(REGEN1, 3300, tps80031_ext_reg_ops, 0, 16),
TPS80031_REG_FIXED(REGEN2, 3300, tps80031_ext_reg_ops, 0, 17),
TPS80031_REG_FIXED(SYSEN, 3300, tps80031_ext_reg_ops, 0, 18),
};
static int tps80031_power_req_config(struct device *parent,
struct tps80031_regulator *ri,
struct tps80031_regulator_platform_data *tps80031_pdata)
{
int ret = 0;
if (ri->rinfo->preq_bit < 0)
goto skip_pwr_req_config;
ret = tps80031_ext_power_req_config(parent, ri->ext_ctrl_flag,
ri->rinfo->preq_bit, ri->rinfo->state_reg,
ri->rinfo->trans_reg);
if (ret < 0) {
dev_err(ri->dev, "ext powerreq config failed, err = %d\n", ret);
return ret;
}
skip_pwr_req_config:
if (tps80031_pdata->ext_ctrl_flag & TPS80031_PWR_ON_ON_SLEEP) {
ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
ri->rinfo->trans_reg, TPS80031_TRANS_SLEEP_ON,
TPS80031_TRANS_SLEEP_MASK);
if (ret < 0) {
dev_err(ri->dev, "Reg 0x%02x update failed, e %d\n",
ri->rinfo->trans_reg, ret);
return ret;
}
}
return ret;
}
static int tps80031_regulator_config(struct device *parent,
struct tps80031_regulator *ri,
struct tps80031_regulator_platform_data *tps80031_pdata)
{
int ret = 0;
switch (ri->rinfo->desc.id) {
case TPS80031_REGULATOR_LDOUSB:
if (ri->config_flags & (TPS80031_USBLDO_INPUT_VSYS |
TPS80031_USBLDO_INPUT_PMID)) {
unsigned val = 0;
if (ri->config_flags & TPS80031_USBLDO_INPUT_VSYS)
val = MISC2_LDOUSB_IN_VSYS;
else
val = MISC2_LDOUSB_IN_PMID;
ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
TPS80031_MISC2, val,
MISC2_LDOUSB_IN_MASK);
if (ret < 0) {
dev_err(ri->dev,
"LDOUSB config failed, e= %d\n", ret);
return ret;
}
}
break;
case TPS80031_REGULATOR_LDO3:
if (ri->config_flags & TPS80031_LDO3_OUTPUT_VIB) {
ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
TPS80031_MISC2, MISC2_LDO3_SEL_VIB_VAL,
MISC2_LDO3_SEL_VIB_MASK);
if (ret < 0) {
dev_err(ri->dev,
"LDO3 config failed, e = %d\n", ret);
return ret;
}
}
break;
case TPS80031_REGULATOR_VBUS:
/* Provide SW control Ops if VBUS is SW control */
if (!(ri->config_flags & TPS80031_VBUS_SW_ONLY))
ri->rinfo->desc.ops = &tps80031_vbus_sw_ops;
break;
default:
break;
}
/* Configure Active state to ON, SLEEP to OFF and OFF_state to OFF */
ret = tps80031_update(parent, TPS80031_SLAVE_ID1, ri->rinfo->trans_reg,
TPS80031_TRANS_ACTIVE_ON | TPS80031_TRANS_SLEEP_OFF |
TPS80031_TRANS_OFF_OFF, TPS80031_TRANS_ACTIVE_MASK |
TPS80031_TRANS_SLEEP_MASK | TPS80031_TRANS_OFF_MASK);
if (ret < 0) {
dev_err(ri->dev, "trans reg update failed, e %d\n", ret);
return ret;
}
return ret;
}
static int check_smps_mode_mult(struct device *parent,
struct tps80031_regulator *ri)
{
int mult_offset;
int ret;
u8 smps_offset;
u8 smps_mult;
ret = tps80031_read(parent, TPS80031_SLAVE_ID1,
TPS80031_SMPS_OFFSET, &smps_offset);
if (ret < 0) {
dev_err(parent, "Error in reading smps offset register\n");
return ret;
}
ret = tps80031_read(parent, TPS80031_SLAVE_ID1,
TPS80031_SMPS_MULT, &smps_mult);
if (ret < 0) {
dev_err(parent, "Error in reading smps mult register\n");
return ret;
}
switch (ri->rinfo->desc.id) {
case TPS80031_REGULATOR_VIO:
mult_offset = SMPS_MULTOFFSET_VIO;
break;
case TPS80031_REGULATOR_SMPS1:
mult_offset = SMPS_MULTOFFSET_SMPS1;
break;
case TPS80031_REGULATOR_SMPS2:
mult_offset = SMPS_MULTOFFSET_SMPS2;
break;
case TPS80031_REGULATOR_SMPS3:
mult_offset = SMPS_MULTOFFSET_SMPS3;
break;
case TPS80031_REGULATOR_SMPS4:
mult_offset = SMPS_MULTOFFSET_SMPS4;
break;
case TPS80031_REGULATOR_LDO2:
ri->device_flags = smps_mult & BIT(5) ? TRACK_MODE_ENABLE : 0;
/* TRACK mode the ldo2 varies from 600mV to 1300mV */
if (ri->device_flags & TRACK_MODE_ENABLE) {
ri->rinfo->desc.min_uV = 600000;
ri->rinfo->desc.uV_step = 12500;
ri->rinfo->desc.n_voltages = 57;
ri->rinfo->desc.vsel_mask = LDO_TRACK_VSEL_MASK;
}
return 0;
default:
return 0;
}
ri->device_flags = (smps_offset & mult_offset) ? DCDC_OFFSET_EN : 0;
ri->device_flags |= (smps_mult & mult_offset) ? DCDC_EXTENDED_EN : 0;
switch (ri->device_flags) {
case 0:
ri->rinfo->desc.min_uV = 607700;
ri->rinfo->desc.uV_step = 12660;
break;
case DCDC_OFFSET_EN:
ri->rinfo->desc.min_uV = 700000;
ri->rinfo->desc.uV_step = 12500;
break;
case DCDC_EXTENDED_EN:
ri->rinfo->desc.min_uV = 1852000;
ri->rinfo->desc.uV_step = 38600;
break;
case DCDC_OFFSET_EN | DCDC_EXTENDED_EN:
ri->rinfo->desc.min_uV = 2161000;
ri->rinfo->desc.uV_step = 38600;
break;
}
return 0;
}
static int __devinit tps80031_regulator_probe(struct platform_device *pdev)
{
struct tps80031_platform_data *pdata;
struct tps80031_regulator_platform_data *tps_pdata;
struct tps80031_regulator_info *rinfo;
struct tps80031_regulator *ri;
struct tps80031_regulator *pmic;
struct regulator_dev *rdev;
struct regulator_config config = { };
int ret;
int num;
pdata = dev_get_platdata(pdev->dev.parent);
if (!pdata) {
dev_err(&pdev->dev, "No platform data\n");
return -EINVAL;
}
pmic = devm_kzalloc(&pdev->dev,
TPS80031_REGULATOR_MAX * sizeof(*pmic), GFP_KERNEL);
if (!pmic) {
dev_err(&pdev->dev, "mem alloc for pmic failed\n");
return -ENOMEM;
}
for (num = 0; num < TPS80031_REGULATOR_MAX; ++num) {
tps_pdata = pdata->regulator_pdata[num];
rinfo = &tps80031_rinfo[num];
ri = &pmic[num];
ri->rinfo = rinfo;
ri->dev = &pdev->dev;
check_smps_mode_mult(pdev->dev.parent, ri);
config.dev = &pdev->dev;
config.init_data = NULL;
config.driver_data = ri;
if (tps_pdata) {
config.init_data = tps_pdata->reg_init_data;
ri->config_flags = tps_pdata->config_flags;
ri->ext_ctrl_flag = tps_pdata->ext_ctrl_flag;
ret = tps80031_regulator_config(pdev->dev.parent,
ri, tps_pdata);
if (ret < 0) {
dev_err(&pdev->dev,
"regulator config failed, e %d\n", ret);
goto fail;
}
ret = tps80031_power_req_config(pdev->dev.parent,
ri, tps_pdata);
if (ret < 0) {
dev_err(&pdev->dev,
"pwr_req config failed, err %d\n", ret);
goto fail;
}
}
rdev = regulator_register(&ri->rinfo->desc, &config);
if (IS_ERR_OR_NULL(rdev)) {
dev_err(&pdev->dev,
"register regulator failed %s\n",
ri->rinfo->desc.name);
ret = PTR_ERR(rdev);
goto fail;
}
ri->rdev = rdev;
}
platform_set_drvdata(pdev, pmic);
return 0;
fail:
while (--num >= 0) {
ri = &pmic[num];
regulator_unregister(ri->rdev);
}
return ret;
}
static int __devexit tps80031_regulator_remove(struct platform_device *pdev)
{
struct tps80031_regulator *pmic = platform_get_drvdata(pdev);
struct tps80031_regulator *ri = NULL;
int num;
for (num = 0; num < TPS80031_REGULATOR_MAX; ++num) {
ri = &pmic[num];
regulator_unregister(ri->rdev);
}
return 0;
}
static struct platform_driver tps80031_regulator_driver = {
.driver = {
.name = "tps80031-pmic",
.owner = THIS_MODULE,
},
.probe = tps80031_regulator_probe,
.remove = __devexit_p(tps80031_regulator_remove),
};
static int __init tps80031_regulator_init(void)
{
return platform_driver_register(&tps80031_regulator_driver);
}
subsys_initcall(tps80031_regulator_init);
static void __exit tps80031_regulator_exit(void)
{
platform_driver_unregister(&tps80031_regulator_driver);
}
module_exit(tps80031_regulator_exit);
MODULE_ALIAS("platform:tps80031-regulator");
MODULE_DESCRIPTION("Regulator Driver for TI TPS80031 PMIC");
MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
MODULE_LICENSE("GPL v2");

147
drivers/regulator/vexpress.c Normal file
View File

@ -0,0 +1,147 @@
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*
* Copyright (C) 2012 ARM Limited
*/
#define DRVNAME "vexpress-regulator"
#define pr_fmt(fmt) DRVNAME ": " fmt
#include <linux/device.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/vexpress.h>
struct vexpress_regulator {
struct regulator_desc desc;
struct regulator_dev *regdev;
struct vexpress_config_func *func;
};
static int vexpress_regulator_get_voltage(struct regulator_dev *regdev)
{
struct vexpress_regulator *reg = rdev_get_drvdata(regdev);
u32 uV;
int err = vexpress_config_read(reg->func, 0, &uV);
return err ? err : uV;
}
static int vexpress_regulator_set_voltage(struct regulator_dev *regdev,
int min_uV, int max_uV, unsigned *selector)
{
struct vexpress_regulator *reg = rdev_get_drvdata(regdev);
return vexpress_config_write(reg->func, 0, min_uV);
}
static struct regulator_ops vexpress_regulator_ops_ro = {
.get_voltage = vexpress_regulator_get_voltage,
};
static struct regulator_ops vexpress_regulator_ops = {
.get_voltage = vexpress_regulator_get_voltage,
.set_voltage = vexpress_regulator_set_voltage,
};
static int vexpress_regulator_probe(struct platform_device *pdev)
{
int err;
struct vexpress_regulator *reg;
struct regulator_init_data *init_data;
struct regulator_config config = { };
reg = devm_kzalloc(&pdev->dev, sizeof(*reg), GFP_KERNEL);
if (!reg) {
err = -ENOMEM;
goto error_kzalloc;
}
reg->func = vexpress_config_func_get_by_dev(&pdev->dev);
if (!reg->func) {
err = -ENXIO;
goto error_get_func;
}
reg->desc.name = dev_name(&pdev->dev);
reg->desc.type = REGULATOR_VOLTAGE;
reg->desc.owner = THIS_MODULE;
reg->desc.continuous_voltage_range = true;
init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node);
if (!init_data) {
err = -EINVAL;
goto error_get_regulator_init_data;
}
init_data->constraints.apply_uV = 0;
if (init_data->constraints.min_uV && init_data->constraints.max_uV)
reg->desc.ops = &vexpress_regulator_ops;
else
reg->desc.ops = &vexpress_regulator_ops_ro;
config.dev = &pdev->dev;
config.init_data = init_data;
config.driver_data = reg;
config.of_node = pdev->dev.of_node;
reg->regdev = regulator_register(&reg->desc, &config);
if (IS_ERR(reg->regdev)) {
err = PTR_ERR(reg->regdev);
goto error_regulator_register;
}
platform_set_drvdata(pdev, reg);
return 0;
error_regulator_register:
error_get_regulator_init_data:
vexpress_config_func_put(reg->func);
error_get_func:
error_kzalloc:
return err;
}
static int __devexit vexpress_regulator_remove(struct platform_device *pdev)
{
struct vexpress_regulator *reg = platform_get_drvdata(pdev);
vexpress_config_func_put(reg->func);
regulator_unregister(reg->regdev);
return 0;
}
static struct of_device_id vexpress_regulator_of_match[] = {
{ .compatible = "arm,vexpress-volt", },
{ }
};
static struct platform_driver vexpress_regulator_driver = {
.probe = vexpress_regulator_probe,
.remove = __devexit_p(vexpress_regulator_remove),
.driver = {
.name = DRVNAME,
.owner = THIS_MODULE,
.of_match_table = vexpress_regulator_of_match,
},
};
module_platform_driver(vexpress_regulator_driver);
MODULE_AUTHOR("Pawel Moll <pawel.moll@arm.com>");
MODULE_DESCRIPTION("Versatile Express regulator");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:vexpress-regulator");

35
include/linux/mfd/tps65090.h
View File

@ -24,6 +24,25 @@
#include <linux/irq.h>
/* TPS65090 Regulator ID */
enum {
TPS65090_REGULATOR_DCDC1,
TPS65090_REGULATOR_DCDC2,
TPS65090_REGULATOR_DCDC3,
TPS65090_REGULATOR_FET1,
TPS65090_REGULATOR_FET2,
TPS65090_REGULATOR_FET3,
TPS65090_REGULATOR_FET4,
TPS65090_REGULATOR_FET5,
TPS65090_REGULATOR_FET6,
TPS65090_REGULATOR_FET7,
TPS65090_REGULATOR_LDO1,
TPS65090_REGULATOR_LDO2,
/* Last entry for maximum ID */
TPS65090_REGULATOR_MAX,
};
struct tps65090 {
struct mutex lock;
struct device *dev;
@ -41,10 +60,26 @@ struct tps65090_subdev_info {
void *platform_data;
};
/*
* struct tps65090_regulator_plat_data
*
* @reg_init_data: The regulator init data.
* @enable_ext_control: Enable extrenal control or not. Only available for
* DCDC1, DCDC2 and DCDC3.
* @gpio: Gpio number if external control is enabled and controlled through
* gpio.
*/
struct tps65090_regulator_plat_data {
struct regulator_init_data *reg_init_data;
bool enable_ext_control;
int gpio;
};
struct tps65090_platform_data {
int irq_base;
int num_subdevs;
struct tps65090_subdev_info *subdevs;
struct tps65090_regulator_plat_data *reg_pdata[TPS65090_REGULATOR_MAX];
};
/*

3
include/linux/regulator/driver.h
View File

@ -181,6 +181,8 @@ enum regulator_type {
* @type: Indicates if the regulator is a voltage or current regulator.
* @owner: Module providing the regulator, used for refcounting.
*
* @continuous_voltage_range: Indicates if the regulator can set any
* voltage within constrains range.
* @n_voltages: Number of selectors available for ops.list_voltage().
*
* @min_uV: Voltage given by the lowest selector (if linear mapping)
@ -199,6 +201,7 @@ struct regulator_desc {
const char *name;
const char *supply_name;
int id;
bool continuous_voltage_range;
unsigned n_voltages;
struct regulator_ops *ops;
int irq;

47
include/linux/regulator/tps51632-regulator.h Normal file
View File

@ -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 */

50
include/linux/regulator/tps65090-regulator.h
View File

@ -1,50 +0,0 @@
/*
* Regulator driver interface for TI TPS65090 PMIC family
*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __REGULATOR_TPS65090_H
#define __REGULATOR_TPS65090_H
#include <linux/regulator/machine.h>
#define tps65090_rails(_name) "tps65090_"#_name
enum {
TPS65090_ID_DCDC1,
TPS65090_ID_DCDC2,
TPS65090_ID_DCDC3,
TPS65090_ID_FET1,
TPS65090_ID_FET2,
TPS65090_ID_FET3,
TPS65090_ID_FET4,
TPS65090_ID_FET5,
TPS65090_ID_FET6,
TPS65090_ID_FET7,
};
/*
* struct tps65090_regulator_platform_data
*
* @regulator: The regulator init data.
* @slew_rate_uV_per_us: Slew rate microvolt per microsec.
*/
struct tps65090_regulator_platform_data {
struct regulator_init_data regulator;
};
#endif /* __REGULATOR_TPS65090_H */