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-rw-r--r--drivers/regulator/Kconfig29
-rw-r--r--drivers/regulator/Makefile3
-rw-r--r--drivers/regulator/ab3100.c6
-rw-r--r--drivers/regulator/core.c79
-rw-r--r--drivers/regulator/dummy.c66
-rw-r--r--drivers/regulator/dummy.h31
-rw-r--r--drivers/regulator/fixed.c30
-rw-r--r--drivers/regulator/lp3971.c68
-rw-r--r--drivers/regulator/max1586.c9
-rw-r--r--drivers/regulator/max8649.c408
-rw-r--r--drivers/regulator/max8660.c11
-rw-r--r--drivers/regulator/mc13783-regulator.c465
-rw-r--r--drivers/regulator/pcap-regulator.c8
-rw-r--r--drivers/regulator/tps65023-regulator.c35
-rw-r--r--drivers/regulator/tps6507x-regulator.c34
-rw-r--r--drivers/regulator/twl-regulator.c22
-rw-r--r--drivers/regulator/virtual.c64
-rw-r--r--drivers/regulator/wm831x-dcdc.c12
-rw-r--r--drivers/regulator/wm831x-isink.c3
-rw-r--r--drivers/regulator/wm831x-ldo.c5
-rw-r--r--drivers/regulator/wm8350-regulator.c46
-rw-r--r--drivers/regulator/wm8400-regulator.c7
-rw-r--r--drivers/regulator/wm8994-regulator.c307
23 files changed, 1565 insertions, 183 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 262f62eec83..834b4844182 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -27,6 +27,17 @@ config REGULATOR_DEBUG
help
Say yes here to enable debugging support.
+config REGULATOR_DUMMY
+ bool "Provide a dummy regulator if regulator lookups fail"
+ help
+ If this option is enabled then when a regulator lookup fails
+ and the board has not specified that it has provided full
+ constraints then the regulator core will provide an always
+ enabled dummy regulator will be provided, allowing consumer
+ drivers to continue.
+
+ A warning will be generated when this substitution is done.
+
config REGULATOR_FIXED_VOLTAGE
tristate "Fixed voltage regulator support"
help
@@ -69,6 +80,13 @@ config REGULATOR_MAX1586
regulator via I2C bus. The provided regulator is suitable
for PXA27x chips to control VCC_CORE and VCC_USIM voltages.
+config REGULATOR_MAX8649
+ tristate "Maxim 8649 voltage regulator"
+ depends on I2C
+ help
+ This driver controls a Maxim 8649 voltage output regulator via
+ I2C bus.
+
config REGULATOR_MAX8660
tristate "Maxim 8660/8661 voltage regulator"
depends on I2C
@@ -91,19 +109,26 @@ config REGULATOR_WM831X
of PMIC devices.
config REGULATOR_WM8350
- tristate "Wolfson Microelectroncis WM8350 AudioPlus PMIC"
+ tristate "Wolfson Microelectronics WM8350 AudioPlus PMIC"
depends on MFD_WM8350
help
This driver provides support for the voltage and current regulators
of the WM8350 AudioPlus PMIC.
config REGULATOR_WM8400
- tristate "Wolfson Microelectroncis WM8400 AudioPlus PMIC"
+ tristate "Wolfson Microelectronics WM8400 AudioPlus PMIC"
depends on MFD_WM8400
help
This driver provides support for the voltage regulators of the
WM8400 AudioPlus PMIC.
+config REGULATOR_WM8994
+ tristate "Wolfson Microelectronics WM8994 CODEC"
+ depends on MFD_WM8994
+ help
+ This driver provides support for the voltage regulators on the
+ WM8994 CODEC.
+
config REGULATOR_DA903X
tristate "Support regulators on Dialog Semiconductor DA9030/DA9034 PMIC"
depends on PMIC_DA903X
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index b3c806c7941..e845b66ad59 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -9,15 +9,18 @@ obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o
obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o
+obj-$(CONFIG_REGULATOR_DUMMY) += dummy.o
obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o
obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o
obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o
+obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o
obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-ldo.o
obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
+obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o
obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o
diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c
index b349db4504b..7de950959ed 100644
--- a/drivers/regulator/ab3100.c
+++ b/drivers/regulator/ab3100.c
@@ -561,7 +561,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = {
* for all the different regulators.
*/
-static int __init ab3100_regulators_probe(struct platform_device *pdev)
+static int __devinit ab3100_regulators_probe(struct platform_device *pdev)
{
struct ab3100_platform_data *plfdata = pdev->dev.platform_data;
struct ab3100 *ab3100 = platform_get_drvdata(pdev);
@@ -641,7 +641,7 @@ static int __init ab3100_regulators_probe(struct platform_device *pdev)
return 0;
}
-static int __exit ab3100_regulators_remove(struct platform_device *pdev)
+static int __devexit ab3100_regulators_remove(struct platform_device *pdev)
{
int i;
@@ -659,7 +659,7 @@ static struct platform_driver ab3100_regulators_driver = {
.owner = THIS_MODULE,
},
.probe = ab3100_regulators_probe,
- .remove = __exit_p(ab3100_regulators_remove),
+ .remove = __devexit_p(ab3100_regulators_remove),
};
static __init int ab3100_regulators_init(void)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index b60a4c9f8f1..c7bbe30010f 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -19,10 +19,13 @@
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/suspend.h>
+#include <linux/delay.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
+#include "dummy.h"
+
#define REGULATOR_VERSION "0.5"
static DEFINE_MUTEX(regulator_list_mutex);
@@ -1084,6 +1087,13 @@ overflow_err:
return NULL;
}
+static int _regulator_get_enable_time(struct regulator_dev *rdev)
+{
+ if (!rdev->desc->ops->enable_time)
+ return 0;
+ return rdev->desc->ops->enable_time(rdev);
+}
+
/* Internal regulator request function */
static struct regulator *_regulator_get(struct device *dev, const char *id,
int exclusive)
@@ -1115,6 +1125,22 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
goto found;
}
}
+
+#ifdef CONFIG_REGULATOR_DUMMY
+ if (!devname)
+ devname = "deviceless";
+
+ /* If the board didn't flag that it was fully constrained then
+ * substitute in a dummy regulator so consumers can continue.
+ */
+ if (!has_full_constraints) {
+ pr_warning("%s supply %s not found, using dummy regulator\n",
+ devname, id);
+ rdev = dummy_regulator_rdev;
+ goto found;
+ }
+#endif
+
mutex_unlock(&regulator_list_mutex);
return regulator;
@@ -1251,7 +1277,7 @@ static int _regulator_can_change_status(struct regulator_dev *rdev)
/* locks held by regulator_enable() */
static int _regulator_enable(struct regulator_dev *rdev)
{
- int ret;
+ int ret, delay;
/* do we need to enable the supply regulator first */
if (rdev->supply) {
@@ -1275,13 +1301,34 @@ static int _regulator_enable(struct regulator_dev *rdev)
if (!_regulator_can_change_status(rdev))
return -EPERM;
- if (rdev->desc->ops->enable) {
- ret = rdev->desc->ops->enable(rdev);
- if (ret < 0)
- return ret;
- } else {
+ if (!rdev->desc->ops->enable)
return -EINVAL;
+
+ /* Query before enabling in case configuration
+ * dependant. */
+ ret = _regulator_get_enable_time(rdev);
+ if (ret >= 0) {
+ delay = ret;
+ } else {
+ printk(KERN_WARNING
+ "%s: enable_time() failed for %s: %d\n",
+ __func__, rdev_get_name(rdev),
+ ret);
+ delay = 0;
}
+
+ /* Allow the regulator to ramp; it would be useful
+ * to extend this for bulk operations so that the
+ * regulators can ramp together. */
+ ret = rdev->desc->ops->enable(rdev);
+ if (ret < 0)
+ return ret;
+
+ if (delay >= 1000)
+ mdelay(delay / 1000);
+ else if (delay)
+ udelay(delay);
+
} else if (ret < 0) {
printk(KERN_ERR "%s: is_enabled() failed for %s: %d\n",
__func__, rdev_get_name(rdev), ret);
@@ -1341,6 +1388,9 @@ static int _regulator_disable(struct regulator_dev *rdev)
__func__, rdev_get_name(rdev));
return ret;
}
+
+ _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE,
+ NULL);
}
/* decrease our supplies ref count and disable if required */
@@ -1399,8 +1449,8 @@ static int _regulator_force_disable(struct regulator_dev *rdev)
return ret;
}
/* notify other consumers that power has been forced off */
- _notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE,
- NULL);
+ _notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE |
+ REGULATOR_EVENT_DISABLE, NULL);
}
/* decrease our supplies ref count and disable if required */
@@ -1434,9 +1484,9 @@ EXPORT_SYMBOL_GPL(regulator_force_disable);
static int _regulator_is_enabled(struct regulator_dev *rdev)
{
- /* sanity check */
+ /* If we don't know then assume that the regulator is always on */
if (!rdev->desc->ops->is_enabled)
- return -EINVAL;
+ return 1;
return rdev->desc->ops->is_enabled(rdev);
}
@@ -2451,8 +2501,15 @@ EXPORT_SYMBOL_GPL(regulator_get_init_drvdata);
static int __init regulator_init(void)
{
+ int ret;
+
printk(KERN_INFO "regulator: core version %s\n", REGULATOR_VERSION);
- return class_register(&regulator_class);
+
+ ret = class_register(&regulator_class);
+
+ regulator_dummy_init();
+
+ return ret;
}
/* init early to allow our consumers to complete system booting */
diff --git a/drivers/regulator/dummy.c b/drivers/regulator/dummy.c
new file mode 100644
index 00000000000..c7410bde7b5
--- /dev/null
+++ b/drivers/regulator/dummy.c
@@ -0,0 +1,66 @@
+/*
+ * dummy.c
+ *
+ * Copyright 2010 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.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 is useful for systems with mixed controllable and
+ * non-controllable regulators, as well as for allowing testing on
+ * systems with no controllable regulators.
+ */
+
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#include "dummy.h"
+
+struct regulator_dev *dummy_regulator_rdev;
+
+static struct regulator_init_data dummy_initdata;
+
+static struct regulator_ops dummy_ops;
+
+static struct regulator_desc dummy_desc = {
+ .name = "dummy",
+ .id = -1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .ops = &dummy_ops,
+};
+
+static struct platform_device *dummy_pdev;
+
+void __init regulator_dummy_init(void)
+{
+ int ret;
+
+ dummy_pdev = platform_device_alloc("reg-dummy", -1);
+ if (!dummy_pdev) {
+ pr_err("Failed to allocate dummy regulator device\n");
+ return;
+ }
+
+ ret = platform_device_add(dummy_pdev);
+ if (ret != 0) {
+ pr_err("Failed to register dummy regulator device: %d\n", ret);
+ platform_device_put(dummy_pdev);
+ return;
+ }
+
+ dummy_regulator_rdev = regulator_register(&dummy_desc, NULL,
+ &dummy_initdata, NULL);
+ if (IS_ERR(dummy_regulator_rdev)) {
+ ret = PTR_ERR(dummy_regulator_rdev);
+ pr_err("Failed to register regulator: %d\n", ret);
+ platform_device_unregister(dummy_pdev);
+ return;
+ }
+}
diff --git a/drivers/regulator/dummy.h b/drivers/regulator/dummy.h
new file mode 100644
index 00000000000..3921c0e2424
--- /dev/null
+++ b/drivers/regulator/dummy.h
@@ -0,0 +1,31 @@
+/*
+ * dummy.h
+ *
+ * Copyright 2010 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.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 is useful for systems with mixed controllable and
+ * non-controllable regulators, as well as for allowing testing on
+ * systems with no controllable regulators.
+ */
+
+#ifndef _DUMMY_H
+#define _DUMMY_H
+
+struct regulator_dev;
+
+extern struct regulator_dev *dummy_regulator_rdev;
+
+#ifdef CONFIG_REGULATOR_DUMMY
+void __init regulator_dummy_init(void);
+#else
+static inline void regulator_dummy_init(void) { }
+#endif
+
+#endif
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index f9f516a3028..d11f7622430 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -24,14 +24,16 @@
#include <linux/regulator/driver.h>
#include <linux/regulator/fixed.h>
#include <linux/gpio.h>
+#include <linux/delay.h>
struct fixed_voltage_data {
struct regulator_desc desc;
struct regulator_dev *dev;
int microvolts;
int gpio;
- unsigned enable_high:1;
- unsigned is_enabled:1;
+ unsigned startup_delay;
+ bool enable_high;
+ bool is_enabled;
};
static int fixed_voltage_is_enabled(struct regulator_dev *dev)
@@ -47,7 +49,7 @@ static int fixed_voltage_enable(struct regulator_dev *dev)
if (gpio_is_valid(data->gpio)) {
gpio_set_value_cansleep(data->gpio, data->enable_high);
- data->is_enabled = 1;
+ data->is_enabled = true;
}
return 0;
@@ -59,12 +61,19 @@ static int fixed_voltage_disable(struct regulator_dev *dev)
if (gpio_is_valid(data->gpio)) {
gpio_set_value_cansleep(data->gpio, !data->enable_high);
- data->is_enabled = 0;
+ data->is_enabled = false;
}
return 0;
}
+static int fixed_voltage_enable_time(struct regulator_dev *dev)
+{
+ struct fixed_voltage_data *data = rdev_get_drvdata(dev);
+
+ return data->startup_delay;
+}
+
static int fixed_voltage_get_voltage(struct regulator_dev *dev)
{
struct fixed_voltage_data *data = rdev_get_drvdata(dev);
@@ -87,11 +96,12 @@ static struct regulator_ops fixed_voltage_ops = {
.is_enabled = fixed_voltage_is_enabled,
.enable = fixed_voltage_enable,
.disable = fixed_voltage_disable,
+ .enable_time = fixed_voltage_enable_time,
.get_voltage = fixed_voltage_get_voltage,
.list_voltage = fixed_voltage_list_voltage,
};
-static int regulator_fixed_voltage_probe(struct platform_device *pdev)
+static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
{
struct fixed_voltage_config *config = pdev->dev.platform_data;
struct fixed_voltage_data *drvdata;
@@ -117,6 +127,7 @@ static int regulator_fixed_voltage_probe(struct platform_device *pdev)
drvdata->microvolts = config->microvolts;
drvdata->gpio = config->gpio;
+ drvdata->startup_delay = config->startup_delay;
if (gpio_is_valid(config->gpio)) {
drvdata->enable_high = config->enable_high;
@@ -163,7 +174,7 @@ static int regulator_fixed_voltage_probe(struct platform_device *pdev)
/* Regulator without GPIO control is considered
* always enabled
*/
- drvdata->is_enabled = 1;
+ drvdata->is_enabled = true;
}
drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev,
@@ -191,7 +202,7 @@ err:
return ret;
}
-static int regulator_fixed_voltage_remove(struct platform_device *pdev)
+static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev)
{
struct fixed_voltage_data *drvdata = platform_get_drvdata(pdev);
@@ -205,10 +216,11 @@ static int regulator_fixed_voltage_remove(struct platform_device *pdev)
}
static struct platform_driver regulator_fixed_voltage_driver = {
- .probe = regulator_fixed_voltage_probe,
- .remove = regulator_fixed_voltage_remove,
+ .probe = reg_fixed_voltage_probe,
+ .remove = __devexit_p(reg_fixed_voltage_remove),
.driver = {
.name = "reg-fixed-voltage",
+ .owner = THIS_MODULE,
},
};
diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c
index 4f33a0f4a17..f5532ed7927 100644
--- a/drivers/regulator/lp3971.c
+++ b/drivers/regulator/lp3971.c
@@ -54,7 +54,7 @@ static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val);
#define LP3971_BUCK2_BASE 0x29
#define LP3971_BUCK3_BASE 0x32
-const static int buck_base_addr[] = {
+static const int buck_base_addr[] = {
LP3971_BUCK1_BASE,
LP3971_BUCK2_BASE,
LP3971_BUCK3_BASE,
@@ -63,7 +63,7 @@ const static int buck_base_addr[] = {
#define LP3971_BUCK_TARGET_VOL1_REG(x) (buck_base_addr[x])
#define LP3971_BUCK_TARGET_VOL2_REG(x) (buck_base_addr[x]+1)
-const static int buck_voltage_map[] = {
+static const int buck_voltage_map[] = {
0, 800, 850, 900, 950, 1000, 1050, 1100,
1150, 1200, 1250, 1300, 1350, 1400, 1450, 1500,
1550, 1600, 1650, 1700, 1800, 1900, 2500, 2800,
@@ -96,17 +96,17 @@ const static int buck_voltage_map[] = {
#define LDO_VOL_CONTR_SHIFT(x) ((x & 1) << 2)
#define LDO_VOL_CONTR_MASK 0x0f
-const static int ldo45_voltage_map[] = {
+static const int ldo45_voltage_map[] = {
1000, 1050, 1100, 1150, 1200, 1250, 1300, 1350,
1400, 1500, 1800, 1900, 2500, 2800, 3000, 3300,
};
-const static int ldo123_voltage_map[] = {
+static const int ldo123_voltage_map[] = {
1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500,
2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300,
};
-const static int *ldo_voltage_map[] = {
+static const int *ldo_voltage_map[] = {
ldo123_voltage_map, /* LDO1 */
ldo123_voltage_map, /* LDO2 */
ldo123_voltage_map, /* LDO3 */
@@ -431,20 +431,20 @@ static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val)
return ret;
}
-static int setup_regulators(struct lp3971 *lp3971,
- struct lp3971_platform_data *pdata)
+static int __devinit setup_regulators(struct lp3971 *lp3971,
+ struct lp3971_platform_data *pdata)
{
int i, err;
- int num_regulators = pdata->num_regulators;
- lp3971->num_regulators = num_regulators;
- lp3971->rdev = kzalloc(sizeof(struct regulator_dev *) * num_regulators,
- GFP_KERNEL);
+
+ lp3971->num_regulators = pdata->num_regulators;
+ lp3971->rdev = kcalloc(pdata->num_regulators,
+ sizeof(struct regulator_dev *), GFP_KERNEL);
/* Instantiate the regulators */
- for (i = 0; i < num_regulators; i++) {
- int id = pdata->regulators[i].id;
- lp3971->rdev[i] = regulator_register(&regulators[id],
- lp3971->dev, pdata->regulators[i].initdata, lp3971);
+ for (i = 0; i < pdata->num_regulators; i++) {
+ struct lp3971_regulator_subdev *reg = &pdata->regulators[i];
+ lp3971->rdev[i] = regulator_register(&regulators[reg->id],
+ lp3971->dev, reg->initdata, lp3971);
if (IS_ERR(lp3971->rdev[i])) {
err = PTR_ERR(lp3971->rdev[i]);
@@ -455,10 +455,10 @@ static int setup_regulators(struct lp3971 *lp3971,
}
return 0;
+
error:
- for (i = 0; i < num_regulators; i++)
- if (lp3971->rdev[i])
- regulator_unregister(lp3971->rdev[i]);
+ while (--i >= 0)
+ regulator_unregister(lp3971->rdev[i]);
kfree(lp3971->rdev);
lp3971->rdev = NULL;
return err;
@@ -472,15 +472,17 @@ static int __devinit lp3971_i2c_probe(struct i2c_client *i2c,
int ret;
u16 val;
- lp3971 = kzalloc(sizeof(struct lp3971), GFP_KERNEL);
- if (lp3971 == NULL) {
- ret = -ENOMEM;
- goto err;
+ if (!pdata) {
+ dev_dbg(&i2c->dev, "No platform init data supplied\n");
+ return -ENODEV;
}
+ lp3971 = kzalloc(sizeof(struct lp3971), GFP_KERNEL);
+ if (lp3971 == NULL)
+ return -ENOMEM;
+
lp3971->i2c = i2c;
lp3971->dev = &i2c->dev;
- i2c_set_clientdata(i2c, lp3971);
mutex_init(&lp3971->io_lock);
@@ -493,19 +495,15 @@ static int __devinit lp3971_i2c_probe(struct i2c_client *i2c,
goto err_detect;
}
- if (pdata) {
- ret = setup_regulators(lp3971, pdata);
- if (ret < 0)
- goto err_detect;
- } else
- dev_warn(lp3971->dev, "No platform init data supplied\n");
+ ret = setup_regulators(lp3971, pdata);
+ if (ret < 0)
+ goto err_detect;
+ i2c_set_clientdata(i2c, lp3971);
return 0;
err_detect:
- i2c_set_clientdata(i2c, NULL);
kfree(lp3971);
-err:
return ret;
}
@@ -513,11 +511,13 @@ static int __devexit lp3971_i2c_remove(struct i2c_client *i2c)
{
struct lp3971 *lp3971 = i2c_get_clientdata(i2c);
int i;
+
+ i2c_set_clientdata(i2c, NULL);
+
for (i = 0; i < lp3971->num_regulators; i++)
- if (lp3971->rdev[i])
- regulator_unregister(lp3971->rdev[i]);
+ regulator_unregister(lp3971->rdev[i]);
+
kfree(lp3971->rdev);
- i2c_set_clientdata(i2c, NULL);
kfree(lp3971);
return 0;
diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c
index 2c082d3ef48..a49fc952c9a 100644
--- a/drivers/regulator/max1586.c
+++ b/drivers/regulator/max1586.c
@@ -179,8 +179,8 @@ static struct regulator_desc max1586_reg[] = {
},
};
-static int max1586_pmic_probe(struct i2c_client *client,
- const struct i2c_device_id *i2c_id)
+static int __devinit max1586_pmic_probe(struct i2c_client *client,
+ const struct i2c_device_id *i2c_id)
{
struct regulator_dev **rdev;
struct max1586_platform_data *pdata = client->dev.platform_data;
@@ -235,7 +235,7 @@ out:
return ret;
}
-static int max1586_pmic_remove(struct i2c_client *client)
+static int __devexit max1586_pmic_remove(struct i2c_client *client)
{
struct regulator_dev **rdev = i2c_get_clientdata(client);
int i;
@@ -257,9 +257,10 @@ MODULE_DEVICE_TABLE(i2c, max1586_id);
static struct i2c_driver max1586_pmic_driver = {
.probe = max1586_pmic_probe,
- .remove = max1586_pmic_remove,
+ .remove = __devexit_p(max1586_pmic_remove),
.driver = {
.name = "max1586",
+ .owner = THIS_MODULE,
},
.id_table = max1586_id,
};
diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c
new file mode 100644
index 00000000000..3ebdf698c64
--- /dev/null
+++ b/drivers/regulator/max8649.c
@@ -0,0 +1,408 @@
+/*
+ * Regulators driver for Maxim max8649
+ *
+ * Copyright (C) 2009-2010 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * 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.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/max8649.h>
+
+#define MAX8649_DCDC_VMIN 750000 /* uV */
+#define MAX8649_DCDC_VMAX 1380000 /* uV */
+#define MAX8649_DCDC_STEP 10000 /* uV */
+#define MAX8649_VOL_MASK 0x3f
+
+/* Registers */
+#define MAX8649_MODE0 0x00
+#define MAX8649_MODE1 0x01
+#define MAX8649_MODE2 0x02
+#define MAX8649_MODE3 0x03
+#define MAX8649_CONTROL 0x04
+#define MAX8649_SYNC 0x05
+#define MAX8649_RAMP 0x06
+#define MAX8649_CHIP_ID1 0x08
+#define MAX8649_CHIP_ID2 0x09
+
+/* Bits */
+#define MAX8649_EN_PD (1 << 7)
+#define MAX8649_VID0_PD (1 << 6)
+#define MAX8649_VID1_PD (1 << 5)
+#define MAX8649_VID_MASK (3 << 5)
+
+#define MAX8649_FORCE_PWM (1 << 7)
+#define MAX8649_SYNC_EXTCLK (1 << 6)
+
+#define MAX8649_EXT_MASK (3 << 6)
+
+#define MAX8649_RAMP_MASK (7 << 5)
+#define MAX8649_RAMP_DOWN (1 << 1)
+
+struct max8649_regulator_info {
+ struct regulator_dev *regulator;
+ struct i2c_client *i2c;
+ struct device *dev;
+ struct mutex io_lock;
+
+ int vol_reg;
+ unsigned mode:2; /* bit[1:0] = VID1, VID0 */
+ unsigned extclk_freq:2;
+ unsigned extclk:1;
+ unsigned ramp_timing:3;
+ unsigned ramp_down:1;
+};
+
+/* I2C operations */
+
+static inline int max8649_read_device(struct i2c_client *i2c,
+ int reg, int bytes, void *dest)
+{
+ unsigned char data;
+ int ret;
+
+ data = (unsigned char)reg;
+ ret = i2c_master_send(i2c, &data, 1);
+ if (ret < 0)
+ return ret;
+ ret = i2c_master_recv(i2c, dest, bytes);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static inline int max8649_write_device(struct i2c_client *i2c,
+ int reg, int bytes, void *src)
+{
+ unsigned char buf[bytes + 1];
+ int ret;
+
+ buf[0] = (unsigned char)reg;
+ memcpy(&buf[1], src, bytes);
+
+ ret = i2c_master_send(i2c, buf, bytes + 1);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static int max8649_reg_read(struct i2c_client *i2c, int reg)
+{
+ struct max8649_regulator_info *info = i2c_get_clientdata(i2c);
+ unsigned char data;
+ int ret;
+
+ mutex_lock(&info->io_lock);
+ ret = max8649_read_device(i2c, reg, 1, &data);
+ mutex_unlock(&info->io_lock);
+
+ if (ret < 0)
+ return ret;
+ return (int)data;
+}
+
+static int max8649_set_bits(struct i2c_client *i2c, int reg,
+ unsigned char mask, unsigned char data)
+{
+ struct max8649_regulator_info *info = i2c_get_clientdata(i2c);
+ unsigned char value;
+ int ret;
+
+ mutex_lock(&info->io_lock);
+ ret = max8649_read_device(i2c, reg, 1, &value);
+ if (ret < 0)
+ goto out;
+ value &= ~mask;
+ value |= data;
+ ret = max8649_write_device(i2c, reg, 1, &value);
+out:
+ mutex_unlock(&info->io_lock);
+ return ret;
+}
+
+static inline int check_range(int min_uV, int max_uV)
+{
+ if ((min_uV < MAX8649_DCDC_VMIN) || (max_uV > MAX8649_DCDC_VMAX)
+ || (min_uV > max_uV))
+ return -EINVAL;
+ return 0;
+}
+
+static int max8649_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ return (MAX8649_DCDC_VMIN + index * MAX8649_DCDC_STEP);
+}
+
+static int max8649_get_voltage(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned char data;
+ int ret;
+
+ ret = max8649_reg_read(info->i2c, info->vol_reg);
+ if (ret < 0)
+ return ret;
+ data = (unsigned char)ret & MAX8649_VOL_MASK;
+ return max8649_list_voltage(rdev, data);
+}
+
+static int max8649_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned char data, mask;
+
+ if (check_range(min_uV, max_uV)) {
+ dev_err(info->dev, "invalid voltage range (%d, %d) uV\n",
+ min_uV, max_uV);
+ return -EINVAL;
+ }
+ data = (min_uV - MAX8649_DCDC_VMIN + MAX8649_DCDC_STEP - 1)
+ / MAX8649_DCDC_STEP;
+ mask = MAX8649_VOL_MASK;
+
+ return max8649_set_bits(info->i2c, info->vol_reg, mask, data);
+}
+
+/* EN_PD means pulldown on EN input */
+static int max8649_enable(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ return max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_EN_PD, 0);
+}
+
+/*
+ * Applied internal pulldown resistor on EN input pin.
+ * If pulldown EN pin outside, it would be better.
+ */
+static int max8649_disable(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ return max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_EN_PD,
+ MAX8649_EN_PD);
+}
+
+static int max8649_is_enabled(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret;
+
+ ret = max8649_reg_read(info->i2c, MAX8649_CONTROL);
+ if (ret < 0)
+ return ret;
+ return !((unsigned char)ret & MAX8649_EN_PD);
+}
+
+static int max8649_enable_time(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ int voltage, rate, ret;
+
+ /* get voltage */
+ ret = max8649_reg_read(info->i2c, info->vol_reg);
+ if (ret < 0)
+ return ret;
+ ret &= MAX8649_VOL_MASK;
+ voltage = max8649_list_voltage(rdev, (unsigned char)ret); /* uV */
+
+ /* get rate */
+ ret = max8649_reg_read(info->i2c, MAX8649_RAMP);
+ if (ret < 0)
+ return ret;
+ ret = (ret & MAX8649_RAMP_MASK) >> 5;
+ rate = (32 * 1000) >> ret; /* uV/uS */
+
+ return (voltage / rate);
+}
+
+static int max8649_set_mode(struct regulator_dev *rdev, unsigned int mode)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ max8649_set_bits(info->i2c, info->vol_reg, MAX8649_FORCE_PWM,
+ MAX8649_FORCE_PWM);
+ break;
+ case REGULATOR_MODE_NORMAL:
+ max8649_set_bits(info->i2c, info->vol_reg,
+ MAX8649_FORCE_PWM, 0);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static unsigned int max8649_get_mode(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret;
+
+ ret = max8649_reg_read(info->i2c, info->vol_reg);
+ if (ret & MAX8649_FORCE_PWM)
+ return REGULATOR_MODE_FAST;
+ return REGULATOR_MODE_NORMAL;
+}
+
+static struct regulator_ops max8649_dcdc_ops = {
+ .set_voltage = max8649_set_voltage,
+ .get_voltage = max8649_get_voltage,
+ .list_voltage = max8649_list_voltage,
+ .enable = max8649_enable,
+ .disable = max8649_disable,
+ .is_enabled = max8649_is_enabled,
+ .enable_time = max8649_enable_time,
+ .set_mode = max8649_set_mode,
+ .get_mode = max8649_get_mode,
+
+};
+
+static struct regulator_desc dcdc_desc = {
+ .name = "max8649",
+ .ops = &max8649_dcdc_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = 1 << 6,
+ .owner = THIS_MODULE,
+};
+
+static int __devinit max8649_regulator_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct max8649_platform_data *pdata = client->dev.platform_data;
+ struct max8649_regulator_info *info = NULL;
+ unsigned char data;
+ int ret;
+
+ info = kzalloc(sizeof(struct max8649_regulator_info), GFP_KERNEL);
+ if (!info) {
+ dev_err(&client->dev, "No enough memory\n");
+ return -ENOMEM;
+ }
+
+ info->i2c = client;
+ info->dev = &client->dev;
+ mutex_init(&info->io_lock);
+ i2c_set_clientdata(client, info);
+
+ info->mode = pdata->mode;
+ switch (info->mode) {
+ case 0:
+ info->vol_reg = MAX8649_MODE0;
+ break;
+ case 1:
+ info->vol_reg = MAX8649_MODE1;
+ break;
+ case 2:
+ info->vol_reg = MAX8649_MODE2;
+ break;
+ case 3:
+ info->vol_reg = MAX8649_MODE3;
+ break;
+ default:
+ break;
+ }
+
+ ret = max8649_reg_read(info->i2c, MAX8649_CHIP_ID1);
+ if (ret < 0) {
+ dev_err(info->dev, "Failed to detect ID of MAX8649:%d\n",
+ ret);
+ goto out;
+ }
+ dev_info(info->dev, "Detected MAX8649 (ID:%x)\n", ret);
+
+ /* enable VID0 & VID1 */
+ max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_VID_MASK, 0);
+
+ /* enable/disable external clock synchronization */
+ info->extclk = pdata->extclk;
+ data = (info->extclk) ? MAX8649_SYNC_EXTCLK : 0;
+ max8649_set_bits(info->i2c, info->vol_reg, MAX8649_SYNC_EXTCLK, data);
+ if (info->extclk) {
+ /* set external clock frequency */
+ info->extclk_freq = pdata->extclk_freq;
+ max8649_set_bits(info->i2c, MAX8649_SYNC, MAX8649_EXT_MASK,
+ info->extclk_freq);
+ }
+
+ if (pdata->ramp_timing) {
+ info->ramp_timing = pdata->ramp_timing;
+ max8649_set_bits(info->i2c, MAX8649_RAMP, MAX8649_RAMP_MASK,
+ info->ramp_timing << 5);
+ }
+
+ info->ramp_down = pdata->ramp_down;
+ if (info->ramp_down) {
+ max8649_set_bits(info->i2c, MAX8649_RAMP, MAX8649_RAMP_DOWN,
+ MAX8649_RAMP_DOWN);
+ }
+
+ info->regulator = regulator_register(&dcdc_desc, &client->dev,
+ pdata->regulator, info);
+ if (IS_ERR(info->regulator)) {
+ dev_err(info->dev, "failed to register regulator %s\n",
+ dcdc_desc.name);
+ ret = PTR_ERR(info->regulator);
+ goto out;
+ }
+
+ dev_info(info->dev, "Max8649 regulator device is detected.\n");
+ return 0;
+out:
+ kfree(info);
+ return ret;
+}
+
+static int __devexit max8649_regulator_remove(struct i2c_client *client)
+{
+ struct max8649_regulator_info *info = i2c_get_clientdata(client);
+
+ if (info) {
+ if (info->regulator)
+ regulator_unregister(info->regulator);
+ kfree(info);
+ }
+ i2c_set_clientdata(client, NULL);
+
+ return 0;
+}
+
+static const struct i2c_device_id max8649_id[] = {
+ { "max8649", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max8649_id);
+
+static struct i2c_driver max8649_driver = {
+ .probe = max8649_regulator_probe,
+ .remove = __devexit_p(max8649_regulator_remove),
+ .driver = {
+ .name = "max8649",
+ },
+ .id_table = max8649_id,
+};
+
+static int __init max8649_init(void)
+{
+ return i2c_add_driver(&max8649_driver);
+}
+subsys_initcall(max8649_init);
+
+static void __exit max8649_exit(void)
+{
+ i2c_del_driver(&max8649_driver);
+}
+module_exit(max8649_exit);
+
+/* Module information */
+MODULE_DESCRIPTION("MAXIM 8649 voltage regulator driver");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index acc2fb7b608..f12f1bb6213 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -345,8 +345,8 @@ static struct regulator_desc max8660_reg[] = {
},
};
-static int max8660_probe(struct i2c_client *client,
- const struct i2c_device_id *i2c_id)
+static int __devinit max8660_probe(struct i2c_client *client,
+ const struct i2c_device_id *i2c_id)
{
struct regulator_dev **rdev;
struct max8660_platform_data *pdata = client->dev.platform_data;
@@ -354,7 +354,7 @@ static int max8660_probe(struct i2c_client *client,
int boot_on, i, id, ret = -EINVAL;
if (pdata->num_subdevs > MAX8660_V_END) {
- dev_err(&client->dev, "Too much regulators found!\n");
+ dev_err(&client->dev, "Too many regulators found!\n");
goto out;
}
@@ -462,7 +462,7 @@ out:
return ret;
}
-static int max8660_remove(struct i2c_client *client)
+static int __devexit max8660_remove(struct i2c_client *client)
{
struct regulator_dev **rdev = i2c_get_clientdata(client);
int i;
@@ -485,9 +485,10 @@ MODULE_DEVICE_TABLE(i2c, max8660_id);
static struct i2c_driver max8660_driver = {
.probe = max8660_probe,
- .remove = max8660_remove,
+ .remove = __devexit_p(max8660_remove),
.driver = {
.name = "max8660",
+ .owner = THIS_MODULE,
},
.id_table = max8660_id,
};
diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index 39c49530004..f7b81845a19 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -2,6 +2,7 @@
* Regulator Driver for Freescale MC13783 PMIC
*
* Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
+ * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
*
* 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
@@ -16,11 +17,44 @@
#include <linux/init.h>
#include <linux/err.h>
-#define MC13783_REG_SWITCHERS4 28
-#define MC13783_REG_SWITCHERS4_PLLEN (1 << 18)
-
#define MC13783_REG_SWITCHERS5 29
#define MC13783_REG_SWITCHERS5_SW3EN (1 << 20)
+#define MC13783_REG_SWITCHERS5_SW3VSEL 18
+#define MC13783_REG_SWITCHERS5_SW3VSEL_M (3 << 18)
+
+#define MC13783_REG_REGULATORSETTING0 30
+#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL 2
+#define MC13783_REG_REGULATORSETTING0_VDIGVSEL 4
+#define MC13783_REG_REGULATORSETTING0_VGENVSEL 6
+#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL 9
+#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL 11
+#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL 13
+#define MC13783_REG_REGULATORSETTING0_VSIMVSEL 14
+#define MC13783_REG_REGULATORSETTING0_VESIMVSEL 15
+#define MC13783_REG_REGULATORSETTING0_VCAMVSEL 16
+
+#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL_M (3 << 2)
+#define MC13783_REG_REGULATORSETTING0_VDIGVSEL_M (3 << 4)
+#define MC13783_REG_REGULATORSETTING0_VGENVSEL_M (7 << 6)
+#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL_M (3 << 9)
+#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL_M (3 << 11)
+#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL_M (1 << 13)
+#define MC13783_REG_REGULATORSETTING0_VSIMVSEL_M (1 << 14)
+#define MC13783_REG_REGULATORSETTING0_VESIMVSEL_M (1 << 15)
+#define MC13783_REG_REGULATORSETTING0_VCAMVSEL_M (7 << 16)
+
+#define MC13783_REG_REGULATORSETTING1 31
+#define MC13783_REG_REGULATORSETTING1_VVIBVSEL 0
+#define MC13783_REG_REGULATORSETTING1_VRF1VSEL 2
+#define MC13783_REG_REGULATORSETTING1_VRF2VSEL 4
+#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL 6
+#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL 9
+
+#define MC13783_REG_REGULATORSETTING1_VVIBVSEL_M (3 << 0)
+#define MC13783_REG_REGULATORSETTING1_VRF1VSEL_M (3 << 2)
+#define MC13783_REG_REGULATORSETTING1_VRF2VSEL_M (3 << 4)
+#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL_M (7 << 6)
+#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL_M (7 << 9)
#define MC13783_REG_REGULATORMODE0 32
#define MC13783_REG_REGULATORMODE0_VAUDIOEN (1 << 0)
@@ -48,19 +82,107 @@
#define MC13783_REG_POWERMISC_GPO2EN (1 << 8)
#define MC13783_REG_POWERMISC_GPO3EN (1 << 10)
#define MC13783_REG_POWERMISC_GPO4EN (1 << 12)
+#define MC13783_REG_POWERMISC_PWGT1SPIEN (1 << 15)
+#define MC13783_REG_POWERMISC_PWGT2SPIEN (1 << 16)
+
+#define MC13783_REG_POWERMISC_PWGTSPI_M (3 << 15)
+
struct mc13783_regulator {
struct regulator_desc desc;
int reg;
int enable_bit;
+ int vsel_reg;
+ int vsel_shift;
+ int vsel_mask;
+ int const *voltages;
+};
+
+/* Voltage Values */
+static const int const mc13783_sw3_val[] = {
+ 5000000, 5000000, 5000000, 5500000,
+};
+
+static const int const mc13783_vaudio_val[] = {
+ 2775000,
+};
+
+static const int const mc13783_viohi_val[] = {
+ 2775000,
+};
+
+static const int const mc13783_violo_val[] = {
+ 1200000, 1300000, 1500000, 1800000,
+};
+
+static const int const mc13783_vdig_val[] = {
+ 1200000, 1300000, 1500000, 1800000,
+};
+
+static const int const mc13783_vgen_val[] = {
+ 1200000, 1300000, 1500000, 1800000,
+ 1100000, 2000000, 2775000, 2400000,
+};
+
+static const int const mc13783_vrfdig_val[] = {
+ 1200000, 1500000, 1800000, 1875000,
+};
+
+static const int const mc13783_vrfref_val[] = {
+ 2475000, 2600000, 2700000, 2775000,
+};
+
+static const int const mc13783_vrfcp_val[] = {
+ 2700000, 2775000,
+};
+
+static const int const mc13783_vsim_val[] = {
+ 1800000, 2900000, 3000000,
+};
+
+static const int const mc13783_vesim_val[] = {
+ 1800000, 2900000,
+};
+
+static const int const mc13783_vcam_val[] = {
+ 1500000, 1800000, 2500000, 2550000,
+ 2600000, 2750000, 2800000, 3000000,
+};
+
+static const int const mc13783_vrfbg_val[] = {
+ 1250000,
+};
+
+static const int const mc13783_vvib_val[] = {
+ 1300000, 1800000, 2000000, 3000000,
+};
+
+static const int const mc13783_vmmc_val[] = {
+ 1600000, 1800000, 2000000, 2600000,
+ 2700000, 2800000, 2900000, 3000000,
+};
+
+static const int const mc13783_vrf_val[] = {
+ 1500000, 1875000, 2700000, 2775000,
+};
+
+static const int const mc13783_gpo_val[] = {
+ 3100000,
+};
+
+static const int const mc13783_pwgtdrv_val[] = {
+ 5500000,
};
static struct regulator_ops mc13783_regulator_ops;
+static struct regulator_ops mc13783_fixed_regulator_ops;
+static struct regulator_ops mc13783_gpo_regulator_ops;
-#define MC13783_DEFINE(prefix, _name, _reg) \
+#define MC13783_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages) \
[MC13783_ ## prefix ## _ ## _name] = { \
.desc = { \
.name = #prefix "_" #_name, \
+ .n_voltages = ARRAY_SIZE(_voltages), \
.ops = &mc13783_regulator_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MC13783_ ## prefix ## _ ## _name, \
@@ -68,40 +190,92 @@ static struct regulator_ops mc13783_regulator_ops;
}, \
.reg = MC13783_REG_ ## _reg, \
.enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \
+ .vsel_reg = MC13783_REG_ ## _vsel_reg, \
+ .vsel_shift = MC13783_REG_ ## _vsel_reg ## _ ## _name ## VSEL,\
+ .vsel_mask = MC13783_REG_ ## _vsel_reg ## _ ## _name ## VSEL_M,\
+ .voltages = _voltages, \
+ }
+
+#define MC13783_FIXED_DEFINE(prefix, _name, _reg, _voltages) \
+ [MC13783_ ## prefix ## _ ## _name] = { \
+ .desc = { \
+ .name = #prefix "_" #_name, \
+ .n_voltages = ARRAY_SIZE(_voltages), \
+ .ops = &mc13783_fixed_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = MC13783_ ## prefix ## _ ## _name, \
+ .owner = THIS_MODULE, \
+ }, \
+ .reg = MC13783_REG_ ## _reg, \
+ .enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \
+ .voltages = _voltages, \
}
-#define MC13783_DEFINE_SW(_name, _reg) MC13783_DEFINE(SW, _name, _reg)
-#define MC13783_DEFINE_REGU(_name, _reg) MC13783_DEFINE(REGU, _name, _reg)
+#define MC13783_GPO_DEFINE(prefix, _name, _reg, _voltages) \
+ [MC13783_ ## prefix ## _ ## _name] = { \
+ .desc = { \
+ .name = #prefix "_" #_name, \
+ .n_voltages = ARRAY_SIZE(_voltages), \
+ .ops = &mc13783_gpo_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = MC13783_ ## prefix ## _ ## _name, \
+ .owner = THIS_MODULE, \
+ }, \
+ .reg = MC13783_REG_ ## _reg, \
+ .enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \
+ .voltages = _voltages, \
+ }
+
+#define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages) \
+ MC13783_DEFINE(SW, _name, _reg, _vsel_reg, _voltages)
+#define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages) \
+ MC13783_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages)
static struct mc13783_regulator mc13783_regulators[] = {
- MC13783_DEFINE_SW(SW3, SWITCHERS5),
- MC13783_DEFINE_SW(PLL, SWITCHERS4),
-
- MC13783_DEFINE_REGU(VAUDIO, REGULATORMODE0),
- MC13783_DEFINE_REGU(VIOHI, REGULATORMODE0),
- MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0),
- MC13783_DEFINE_REGU(VDIG, REGULATORMODE0),
- MC13783_DEFINE_REGU(VGEN, REGULATORMODE0),
- MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0),
- MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0),
- MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0),
- MC13783_DEFINE_REGU(VSIM, REGULATORMODE1),
- MC13783_DEFINE_REGU(VESIM, REGULATORMODE1),
- MC13783_DEFINE_REGU(VCAM, REGULATORMODE1),
- MC13783_DEFINE_REGU(VRFBG, REGULATORMODE1),
- MC13783_DEFINE_REGU(VVIB, REGULATORMODE1),
- MC13783_DEFINE_REGU(VRF1, REGULATORMODE1),
- MC13783_DEFINE_REGU(VRF2, REGULATORMODE1),
- MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1),
- MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1),
- MC13783_DEFINE_REGU(GPO1, POWERMISC),
- MC13783_DEFINE_REGU(GPO2, POWERMISC),
- MC13783_DEFINE_REGU(GPO3, POWERMISC),
- MC13783_DEFINE_REGU(GPO4, POWERMISC),
+ MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),
+
+ MC13783_FIXED_DEFINE(REGU, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
+ MC13783_FIXED_DEFINE(REGU, VIOHI, REGULATORMODE0, mc13783_viohi_val),
+ MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_violo_val),
+ MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vdig_val),
+ MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vgen_val),
+ MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vrfdig_val),
+ MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vrfref_val),
+ MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vrfcp_val),
+ MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0, \
+ mc13783_vsim_val),
+ MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0, \
+ mc13783_vesim_val),
+ MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0, \
+ mc13783_vcam_val),
+ MC13783_FIXED_DEFINE(REGU, VRFBG, REGULATORMODE1, mc13783_vrfbg_val),
+ MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vvib_val),
+ MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vrf_val),
+ MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vrf_val),
+ MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vmmc_val),
+ MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vmmc_val),
+ MC13783_GPO_DEFINE(REGU, GPO1, POWERMISC, mc13783_gpo_val),
+ MC13783_GPO_DEFINE(REGU, GPO2, POWERMISC, mc13783_gpo_val),
+ MC13783_GPO_DEFINE(REGU, GPO3, POWERMISC, mc13783_gpo_val),
+ MC13783_GPO_DEFINE(REGU, GPO4, POWERMISC, mc13783_gpo_val),
+ MC13783_GPO_DEFINE(REGU, PWGT1SPI, POWERMISC, mc13783_pwgtdrv_val),
+ MC13783_GPO_DEFINE(REGU, PWGT2SPI, POWERMISC, mc13783_pwgtdrv_val),
};
struct mc13783_regulator_priv {
struct mc13783 *mc13783;
+ u32 powermisc_pwgt_state;
struct regulator_dev *regulators[];
};
@@ -154,10 +328,241 @@ static int mc13783_regulator_is_enabled(struct regulator_dev *rdev)
return (val & mc13783_regulators[id].enable_bit) != 0;
}
+static int mc13783_regulator_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ int id = rdev_get_id(rdev);
+
+ if (selector >= mc13783_regulators[id].desc.n_voltages)
+ return -EINVAL;
+
+ return mc13783_regulators[id].voltages[selector];
+}
+
+static int mc13783_get_best_voltage_index(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ int reg_id = rdev_get_id(rdev);
+ int i;
+ int bestmatch;
+ int bestindex;
+
+ /*
+ * Locate the minimum voltage fitting the criteria on
+ * this regulator. The switchable voltages are not
+ * in strict falling order so we need to check them
+ * all for the best match.
+ */
+ bestmatch = INT_MAX;
+ bestindex = -1;
+ for (i = 0; i < mc13783_regulators[reg_id].desc.n_voltages; i++) {
+ if (mc13783_regulators[reg_id].voltages[i] >= min_uV &&
+ mc13783_regulators[reg_id].voltages[i] < bestmatch) {
+ bestmatch = mc13783_regulators[reg_id].voltages[i];
+ bestindex = i;
+ }
+ }
+
+ if (bestindex < 0 || bestmatch > max_uV) {
+ dev_warn(&rdev->dev, "no possible value for %d<=x<=%d uV\n",
+ min_uV, max_uV);
+ return -EINVAL;
+ }
+ return bestindex;
+}
+
+static int mc13783_regulator_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int value, id = rdev_get_id(rdev);
+ int ret;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
+ __func__, id, min_uV, max_uV);
+
+ /* Find the best index */
+ value = mc13783_get_best_voltage_index(rdev, min_uV, max_uV);
+ dev_dbg(rdev_get_dev(rdev), "%s best value: %d \n", __func__, value);
+ if (value < 0)
+ return value;
+
+ mc13783_lock(priv->mc13783);
+ ret = mc13783_reg_rmw(priv->mc13783, mc13783_regulators[id].vsel_reg,
+ mc13783_regulators[id].vsel_mask,
+ value << mc13783_regulators[id].vsel_shift);
+ mc13783_unlock(priv->mc13783);
+
+ return ret;
+}
+
+static int mc13783_regulator_get_voltage(struct regulator_dev *rdev)
+{
+ struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int ret, id = rdev_get_id(rdev);
+ unsigned int val;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ mc13783_lock(priv->mc13783);
+ ret = mc13783_reg_read(priv->mc13783,
+ mc13783_regulators[id].vsel_reg, &val);
+ mc13783_unlock(priv->mc13783);
+
+ if (ret)
+ return ret;
+
+ val = (val & mc13783_regulators[id].vsel_mask)
+ >> mc13783_regulators[id].vsel_shift;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
+
+ BUG_ON(val < 0 || val > mc13783_regulators[id].desc.n_voltages);
+
+ return mc13783_regulators[id].voltages[val];
+}
+
static struct regulator_ops mc13783_regulator_ops = {
.enable = mc13783_regulator_enable,
.disable = mc13783_regulator_disable,
.is_enabled = mc13783_regulator_is_enabled,
+ .list_voltage = mc13783_regulator_list_voltage,
+ .set_voltage = mc13783_regulator_set_voltage,
+ .get_voltage = mc13783_regulator_get_voltage,
+};
+
+static int mc13783_fixed_regulator_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ int id = rdev_get_id(rdev);
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
+ __func__, id, min_uV, max_uV);
+
+ if (min_uV > mc13783_regulators[id].voltages[0] &&
+ max_uV < mc13783_regulators[id].voltages[0])
+ return 0;
+ else
+ return -EINVAL;
+}
+
+static int mc13783_fixed_regulator_get_voltage(struct regulator_dev *rdev)
+{
+ int id = rdev_get_id(rdev);
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ return mc13783_regulators[id].voltages[0];
+}
+
+static struct regulator_ops mc13783_fixed_regulator_ops = {
+ .enable = mc13783_regulator_enable,
+ .disable = mc13783_regulator_disable,
+ .is_enabled = mc13783_regulator_is_enabled,
+ .list_voltage = mc13783_regulator_list_voltage,
+ .set_voltage = mc13783_fixed_regulator_set_voltage,
+ .get_voltage = mc13783_fixed_regulator_get_voltage,
+};
+
+int mc13783_powermisc_rmw(struct mc13783_regulator_priv *priv, u32 mask,
+ u32 val)
+{
+ struct mc13783 *mc13783 = priv->mc13783;
+ int ret;
+ u32 valread;
+
+ BUG_ON(val & ~mask);
+
+ ret = mc13783_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
+ if (ret)
+ return ret;
+
+ /* Update the stored state for Power Gates. */
+ priv->powermisc_pwgt_state =
+ (priv->powermisc_pwgt_state & ~mask) | val;
+ priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M;
+
+ /* Construct the new register value */
+ valread = (valread & ~mask) | val;
+ /* Overwrite the PWGTxEN with the stored version */
+ valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
+ priv->powermisc_pwgt_state;
+
+ return mc13783_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
+}
+
+static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
+{
+ struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int id = rdev_get_id(rdev);
+ int ret;
+ u32 en_val = mc13783_regulators[id].enable_bit;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ /* Power Gate enable value is 0 */
+ if (id == MC13783_REGU_PWGT1SPI ||
+ id == MC13783_REGU_PWGT2SPI)
+ en_val = 0;
+
+ mc13783_lock(priv->mc13783);
+ ret = mc13783_powermisc_rmw(priv, mc13783_regulators[id].enable_bit,
+ en_val);
+ mc13783_unlock(priv->mc13783);
+
+ return ret;
+}
+
+static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
+{
+ struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int id = rdev_get_id(rdev);
+ int ret;
+ u32 dis_val = 0;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ /* Power Gate disable value is 1 */
+ if (id == MC13783_REGU_PWGT1SPI ||
+ id == MC13783_REGU_PWGT2SPI)
+ dis_val = mc13783_regulators[id].enable_bit;
+
+ mc13783_lock(priv->mc13783);
+ ret = mc13783_powermisc_rmw(priv, mc13783_regulators[id].enable_bit,
+ dis_val);
+ mc13783_unlock(priv->mc13783);
+
+ return ret;
+}
+
+static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int ret, id = rdev_get_id(rdev);
+ unsigned int val;
+
+ mc13783_lock(priv->mc13783);
+ ret = mc13783_reg_read(priv->mc13783, mc13783_regulators[id].reg, &val);
+ mc13783_unlock(priv->mc13783);
+
+ if (ret)
+ return ret;
+
+ /* Power Gates state is stored in powermisc_pwgt_state
+ * where the meaning of bits is negated */
+ val = (val & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
+ (priv->powermisc_pwgt_state ^ MC13783_REG_POWERMISC_PWGTSPI_M);
+
+ return (val & mc13783_regulators[id].enable_bit) != 0;
+}
+
+static struct regulator_ops mc13783_gpo_regulator_ops = {
+ .enable = mc13783_gpo_regulator_enable,
+ .disable = mc13783_gpo_regulator_disable,
+ .is_enabled = mc13783_gpo_regulator_is_enabled,
+ .list_voltage = mc13783_regulator_list_voltage,
+ .set_voltage = mc13783_fixed_regulator_set_voltage,
+ .get_voltage = mc13783_fixed_regulator_get_voltage,
};
static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c
index 33d7d899e03..29d0566379a 100644
--- a/drivers/regulator/pcap-regulator.c
+++ b/drivers/regulator/pcap-regulator.c
@@ -288,16 +288,18 @@ static int __devexit pcap_regulator_remove(struct platform_device *pdev)
struct regulator_dev *rdev = platform_get_drvdata(pdev);
regulator_unregister(rdev);
+ platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver pcap_regulator_driver = {
.driver = {
- .name = "pcap-regulator",
+ .name = "pcap-regulator",
+ .owner = THIS_MODULE,
},
- .probe = pcap_regulator_probe,
- .remove = __devexit_p(pcap_regulator_remove),
+ .probe = pcap_regulator_probe,
+ .remove = __devexit_p(pcap_regulator_remove),
};
static int __init pcap_regulator_init(void)
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index 07fda0a75ad..1f183543bdb 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -457,8 +457,8 @@ static struct regulator_ops tps65023_ldo_ops = {
.list_voltage = tps65023_ldo_list_voltage,
};
-static
-int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id)
+static int __devinit tps_65023_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
static int desc_id;
const struct tps_info *info = (void *)id->driver_data;
@@ -466,6 +466,7 @@ int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id)
struct regulator_dev *rdev;
struct tps_pmic *tps;
int i;
+ int error;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
@@ -475,7 +476,6 @@ int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id)
* coming from the board-evm file.
*/
init_data = client->dev.platform_data;
-
if (!init_data)
return -EIO;
@@ -502,21 +502,12 @@ int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* Register the regulators */
rdev = regulator_register(&tps->desc[i], &client->dev,
- init_data, tps);
+ init_data, tps);
if (IS_ERR(rdev)) {
dev_err(&client->dev, "failed to register %s\n",
id->name);
-
- /* Unregister */
- while (i)
- regulator_unregister(tps->rdev[--i]);
-
- tps->client = NULL;
-
- /* clear the client data in i2c */
- i2c_set_clientdata(client, NULL);
- kfree(tps);
- return PTR_ERR(rdev);
+ error = PTR_ERR(rdev);
+ goto fail;
}
/* Save regulator for cleanup */
@@ -526,6 +517,13 @@ int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id)
i2c_set_clientdata(client, tps);
return 0;
+
+ fail:
+ while (--i >= 0)
+ regulator_unregister(tps->rdev[i]);
+
+ kfree(tps);
+ return error;
}
/**
@@ -539,13 +537,12 @@ static int __devexit tps_65023_remove(struct i2c_client *client)
struct tps_pmic *tps = i2c_get_clientdata(client);
int i;
+ /* clear the client data in i2c */
+ i2c_set_clientdata(client, NULL);
+
for (i = 0; i < TPS65023_NUM_REGULATOR; i++)
regulator_unregister(tps->rdev[i]);
- tps->client = NULL;
-
- /* clear the client data in i2c */
- i2c_set_clientdata(client, NULL);
kfree(tps);
return 0;
diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
index f8a6dfbef75..c2a9539acd7 100644
--- a/drivers/regulator/tps6507x-regulator.c
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -538,8 +538,8 @@ static struct regulator_ops tps6507x_ldo_ops = {
.list_voltage = tps6507x_ldo_list_voltage,
};
-static
-int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id)
+static int __devinit tps_6507x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
static int desc_id;
const struct tps_info *info = (void *)id->driver_data;
@@ -547,6 +547,7 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id)
struct regulator_dev *rdev;
struct tps_pmic *tps;
int i;
+ int error;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_BYTE_DATA))
@@ -557,7 +558,6 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id)
* coming from the board-evm file.
*/
init_data = client->dev.platform_data;
-
if (!init_data)
return -EIO;
@@ -586,18 +586,8 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id)
if (IS_ERR(rdev)) {
dev_err(&client->dev, "failed to register %s\n",
id->name);
-
- /* Unregister */
- while (i)
- regulator_unregister(tps->rdev[--i]);
-
- tps->client = NULL;
-
- /* clear the client data in i2c */
- i2c_set_clientdata(client, NULL);
-
- kfree(tps);
- return PTR_ERR(rdev);
+ error = PTR_ERR(rdev);
+ goto fail;
}
/* Save regulator for cleanup */
@@ -607,6 +597,13 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id)
i2c_set_clientdata(client, tps);
return 0;
+
+fail:
+ while (--i >= 0)
+ regulator_unregister(tps->rdev[i]);
+
+ kfree(tps);
+ return error;
}
/**
@@ -620,13 +617,12 @@ static int __devexit tps_6507x_remove(struct i2c_client *client)
struct tps_pmic *tps = i2c_get_clientdata(client);
int i;
+ /* clear the client data in i2c */
+ i2c_set_clientdata(client, NULL);
+
for (i = 0; i < TPS6507X_NUM_REGULATOR; i++)
regulator_unregister(tps->rdev[i]);
- tps->client = NULL;
-
- /* clear the client data in i2c */
- i2c_set_clientdata(client, NULL);
kfree(tps);
return 0;
diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index 7e674859bd5..9729d760fb4 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -519,19 +519,19 @@ static struct twlreg_info twl_regs[] = {
/* 6030 REG with base as PMC Slave Misc : 0x0030 */
/* Turnon-delay and remap configuration values for 6030 are not
verified since the specification is not public */
- TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1, 0, 0x08),
- TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 2, 0, 0x08),
- TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 3, 0, 0x08),
- TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 4, 0, 0x08),
- TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 5, 0, 0x08),
- TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 7, 0, 0x08),
- TWL6030_FIXED_LDO(VANA, 0x50, 2100, 15, 0, 0x08),
- TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 16, 0, 0x08),
- TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 17, 0, 0x08),
- TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 18, 0, 0x08)
+ TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1, 0, 0x21),
+ TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 2, 0, 0x21),
+ TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 3, 0, 0x21),
+ TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 4, 0, 0x21),
+ TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 5, 0, 0x21),
+ TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 7, 0, 0x21),
+ TWL6030_FIXED_LDO(VANA, 0x50, 2100, 15, 0, 0x21),
+ TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 16, 0, 0x21),
+ TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 17, 0, 0x21),
+ TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 18, 0, 0x21)
};
-static int twlreg_probe(struct platform_device *pdev)
+static int __devinit twlreg_probe(struct platform_device *pdev)
{
int i;
struct twlreg_info *info;
diff --git a/drivers/regulator/virtual.c b/drivers/regulator/virtual.c
index addc032c84b..d96cecaac73 100644
--- a/drivers/regulator/virtual.c
+++ b/drivers/regulator/virtual.c
@@ -19,7 +19,7 @@
struct virtual_consumer_data {
struct mutex lock;
struct regulator *regulator;
- int enabled;
+ bool enabled;
int min_uV;
int max_uV;
int min_uA;
@@ -49,7 +49,7 @@ static void update_voltage_constraints(struct device *dev,
dev_dbg(dev, "Enabling regulator\n");
ret = regulator_enable(data->regulator);
if (ret == 0)
- data->enabled = 1;
+ data->enabled = true;
else
dev_err(dev, "regulator_enable() failed: %d\n",
ret);
@@ -59,7 +59,7 @@ static void update_voltage_constraints(struct device *dev,
dev_dbg(dev, "Disabling regulator\n");
ret = regulator_disable(data->regulator);
if (ret == 0)
- data->enabled = 0;
+ data->enabled = false;
else
dev_err(dev, "regulator_disable() failed: %d\n",
ret);
@@ -89,7 +89,7 @@ static void update_current_limit_constraints(struct device *dev,
dev_dbg(dev, "Enabling regulator\n");
ret = regulator_enable(data->regulator);
if (ret == 0)
- data->enabled = 1;
+ data->enabled = true;
else
dev_err(dev, "regulator_enable() failed: %d\n",
ret);
@@ -99,7 +99,7 @@ static void update_current_limit_constraints(struct device *dev,
dev_dbg(dev, "Disabling regulator\n");
ret = regulator_disable(data->regulator);
if (ret == 0)
- data->enabled = 0;
+ data->enabled = false;
else
dev_err(dev, "regulator_disable() failed: %d\n",
ret);
@@ -270,24 +270,28 @@ static DEVICE_ATTR(min_microamps, 0666, show_min_uA, set_min_uA);
static DEVICE_ATTR(max_microamps, 0666, show_max_uA, set_max_uA);
static DEVICE_ATTR(mode, 0666, show_mode, set_mode);
-static struct device_attribute *attributes[] = {
- &dev_attr_min_microvolts,
- &dev_attr_max_microvolts,
- &dev_attr_min_microamps,
- &dev_attr_max_microamps,
- &dev_attr_mode,
+static struct attribute *regulator_virtual_attributes[] = {
+ &dev_attr_min_microvolts.attr,
+ &dev_attr_max_microvolts.attr,
+ &dev_attr_min_microamps.attr,
+ &dev_attr_max_microamps.attr,
+ &dev_attr_mode.attr,
+ NULL
};
-static int regulator_virtual_consumer_probe(struct platform_device *pdev)
+static const struct attribute_group regulator_virtual_attr_group = {
+ .attrs = regulator_virtual_attributes,
+};
+
+static int __devinit regulator_virtual_probe(struct platform_device *pdev)
{
char *reg_id = pdev->dev.platform_data;
struct virtual_consumer_data *drvdata;
- int ret, i;
+ int ret;
drvdata = kzalloc(sizeof(struct virtual_consumer_data), GFP_KERNEL);
- if (drvdata == NULL) {
+ if (drvdata == NULL)
return -ENOMEM;
- }
mutex_init(&drvdata->lock);
@@ -299,13 +303,12 @@ static int regulator_virtual_consumer_probe(struct platform_device *pdev)
goto err;
}
- for (i = 0; i < ARRAY_SIZE(attributes); i++) {
- ret = device_create_file(&pdev->dev, attributes[i]);
- if (ret != 0) {
- dev_err(&pdev->dev, "Failed to create attr %d: %d\n",
- i, ret);
- goto err_regulator;
- }
+ ret = sysfs_create_group(&pdev->dev.kobj,
+ &regulator_virtual_attr_group);
+ if (ret != 0) {
+ dev_err(&pdev->dev,
+ "Failed to create attribute group: %d\n", ret);
+ goto err_regulator;
}
drvdata->mode = regulator_get_mode(drvdata->regulator);
@@ -317,37 +320,36 @@ static int regulator_virtual_consumer_probe(struct platform_device *pdev)
err_regulator:
regulator_put(drvdata->regulator);
err:
- for (i = 0; i < ARRAY_SIZE(attributes); i++)
- device_remove_file(&pdev->dev, attributes[i]);
kfree(drvdata);
return ret;
}
-static int regulator_virtual_consumer_remove(struct platform_device *pdev)
+static int __devexit regulator_virtual_remove(struct platform_device *pdev)
{
struct virtual_consumer_data *drvdata = platform_get_drvdata(pdev);
- int i;
- for (i = 0; i < ARRAY_SIZE(attributes); i++)
- device_remove_file(&pdev->dev, attributes[i]);
+ sysfs_remove_group(&pdev->dev.kobj, &regulator_virtual_attr_group);
+
if (drvdata->enabled)
regulator_disable(drvdata->regulator);
regulator_put(drvdata->regulator);
kfree(drvdata);
+ platform_set_drvdata(pdev, NULL);
+
return 0;
}
static struct platform_driver regulator_virtual_consumer_driver = {
- .probe = regulator_virtual_consumer_probe,
- .remove = regulator_virtual_consumer_remove,
+ .probe = regulator_virtual_probe,
+ .remove = __devexit_p(regulator_virtual_remove),
.driver = {
.name = "reg-virt-consumer",
+ .owner = THIS_MODULE,
},
};
-
static int __init regulator_virtual_consumer_init(void)
{
return platform_driver_register(&regulator_virtual_consumer_driver);
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 0a6577577e8..6e18e56d850 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -600,6 +600,8 @@ static __devexit int wm831x_buckv_remove(struct platform_device *pdev)
struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
struct wm831x *wm831x = dcdc->wm831x;
+ platform_set_drvdata(pdev, NULL);
+
wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "HC"), dcdc);
wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
regulator_unregister(dcdc->regulator);
@@ -615,6 +617,7 @@ static struct platform_driver wm831x_buckv_driver = {
.remove = __devexit_p(wm831x_buckv_remove),
.driver = {
.name = "wm831x-buckv",
+ .owner = THIS_MODULE,
},
};
@@ -769,6 +772,8 @@ static __devexit int wm831x_buckp_remove(struct platform_device *pdev)
struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
struct wm831x *wm831x = dcdc->wm831x;
+ platform_set_drvdata(pdev, NULL);
+
wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
regulator_unregister(dcdc->regulator);
kfree(dcdc);
@@ -781,6 +786,7 @@ static struct platform_driver wm831x_buckp_driver = {
.remove = __devexit_p(wm831x_buckp_remove),
.driver = {
.name = "wm831x-buckp",
+ .owner = THIS_MODULE,
},
};
@@ -895,6 +901,8 @@ static __devexit int wm831x_boostp_remove(struct platform_device *pdev)
struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
struct wm831x *wm831x = dcdc->wm831x;
+ platform_set_drvdata(pdev, NULL);
+
wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
regulator_unregister(dcdc->regulator);
kfree(dcdc);
@@ -907,6 +915,7 @@ static struct platform_driver wm831x_boostp_driver = {
.remove = __devexit_p(wm831x_boostp_remove),
.driver = {
.name = "wm831x-boostp",
+ .owner = THIS_MODULE,
},
};
@@ -979,6 +988,8 @@ static __devexit int wm831x_epe_remove(struct platform_device *pdev)
{
struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
+ platform_set_drvdata(pdev, NULL);
+
regulator_unregister(dcdc->regulator);
kfree(dcdc);
@@ -990,6 +1001,7 @@ static struct platform_driver wm831x_epe_driver = {
.remove = __devexit_p(wm831x_epe_remove),
.driver = {
.name = "wm831x-epe",
+ .owner = THIS_MODULE,
},
};
diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 48857008758..ca0f6b6c384 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -222,6 +222,8 @@ static __devexit int wm831x_isink_remove(struct platform_device *pdev)
struct wm831x_isink *isink = platform_get_drvdata(pdev);
struct wm831x *wm831x = isink->wm831x;
+ platform_set_drvdata(pdev, NULL);
+
wm831x_free_irq(wm831x, platform_get_irq(pdev, 0), isink);
regulator_unregister(isink->regulator);
@@ -235,6 +237,7 @@ static struct platform_driver wm831x_isink_driver = {
.remove = __devexit_p(wm831x_isink_remove),
.driver = {
.name = "wm831x-isink",
+ .owner = THIS_MODULE,
},
};
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 61e02ac2fda..d2406c1519a 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -371,6 +371,8 @@ static __devexit int wm831x_gp_ldo_remove(struct platform_device *pdev)
struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
struct wm831x *wm831x = ldo->wm831x;
+ platform_set_drvdata(pdev, NULL);
+
wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), ldo);
regulator_unregister(ldo->regulator);
kfree(ldo);
@@ -383,6 +385,7 @@ static struct platform_driver wm831x_gp_ldo_driver = {
.remove = __devexit_p(wm831x_gp_ldo_remove),
.driver = {
.name = "wm831x-ldo",
+ .owner = THIS_MODULE,
},
};
@@ -640,6 +643,7 @@ static struct platform_driver wm831x_aldo_driver = {
.remove = __devexit_p(wm831x_aldo_remove),
.driver = {
.name = "wm831x-aldo",
+ .owner = THIS_MODULE,
},
};
@@ -811,6 +815,7 @@ static struct platform_driver wm831x_alive_ldo_driver = {
.remove = __devexit_p(wm831x_alive_ldo_remove),
.driver = {
.name = "wm831x-alive-ldo",
+ .owner = THIS_MODULE,
},
};
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index e7b89e704af..94227dd6ba7 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -290,6 +290,51 @@ static int wm8350_isink_is_enabled(struct regulator_dev *rdev)
return -EINVAL;
}
+static int wm8350_isink_enable_time(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int isink = rdev_get_id(rdev);
+ int reg;
+
+ switch (isink) {
+ case WM8350_ISINK_A:
+ reg = wm8350_reg_read(wm8350, WM8350_CSA_FLASH_CONTROL);
+ break;
+ case WM8350_ISINK_B:
+ reg = wm8350_reg_read(wm8350, WM8350_CSB_FLASH_CONTROL);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (reg & WM8350_CS1_FLASH_MODE) {
+ switch (reg & WM8350_CS1_ON_RAMP_MASK) {
+ case 0:
+ return 0;
+ case 1:
+ return 1950;
+ case 2:
+ return 3910;
+ case 3:
+ return 7800;
+ }
+ } else {
+ switch (reg & WM8350_CS1_ON_RAMP_MASK) {
+ case 0:
+ return 0;
+ case 1:
+ return 250000;
+ case 2:
+ return 500000;
+ case 3:
+ return 1000000;
+ }
+ }
+
+ return -EINVAL;
+}
+
+
int wm8350_isink_set_flash(struct wm8350 *wm8350, int isink, u16 mode,
u16 trigger, u16 duration, u16 on_ramp, u16 off_ramp,
u16 drive)
@@ -1221,6 +1266,7 @@ static struct regulator_ops wm8350_isink_ops = {
.enable = wm8350_isink_enable,
.disable = wm8350_isink_disable,
.is_enabled = wm8350_isink_is_enabled,
+ .enable_time = wm8350_isink_enable_time,
};
static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index d9a2c988c6e..924c7eb29ee 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -317,14 +317,17 @@ static struct regulator_desc regulators[] = {
static int __devinit wm8400_regulator_probe(struct platform_device *pdev)
{
+ struct wm8400 *wm8400 = container_of(pdev, struct wm8400, regulators[pdev->id]);
struct regulator_dev *rdev;
rdev = regulator_register(&regulators[pdev->id], &pdev->dev,
- pdev->dev.platform_data, dev_get_drvdata(&pdev->dev));
+ pdev->dev.platform_data, wm8400);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
+ platform_set_drvdata(pdev, rdev);
+
return 0;
}
@@ -332,6 +335,7 @@ static int __devexit wm8400_regulator_remove(struct platform_device *pdev)
{
struct regulator_dev *rdev = platform_get_drvdata(pdev);
+ platform_set_drvdata(pdev, NULL);
regulator_unregister(rdev);
return 0;
@@ -370,7 +374,6 @@ int wm8400_register_regulator(struct device *dev, int reg,
wm8400->regulators[reg].id = reg;
wm8400->regulators[reg].dev.parent = dev;
wm8400->regulators[reg].dev.platform_data = initdata;
- dev_set_drvdata(&wm8400->regulators[reg].dev, wm8400);
return platform_device_register(&wm8400->regulators[reg]);
}
diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c
new file mode 100644
index 00000000000..95454a4637b
--- /dev/null
+++ b/drivers/regulator/wm8994-regulator.c
@@ -0,0 +1,307 @@
+/*
+ * wm8994-regulator.c -- Regulator driver for the WM8994
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.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/moduleparam.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/gpio.h>
+
+#include <linux/mfd/wm8994/core.h>
+#include <linux/mfd/wm8994/registers.h>
+#include <linux/mfd/wm8994/pdata.h>
+
+struct wm8994_ldo {
+ int enable;
+ bool is_enabled;
+ struct regulator_dev *regulator;
+ struct wm8994 *wm8994;
+};
+
+#define WM8994_LDO1_MAX_SELECTOR 0x7
+#define WM8994_LDO2_MAX_SELECTOR 0x3
+
+static int wm8994_ldo_enable(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+
+ /* If we have no soft control assume that the LDO is always enabled. */
+ if (!ldo->enable)
+ return 0;
+
+ gpio_set_value(ldo->enable, 1);
+ ldo->is_enabled = true;
+
+ return 0;
+}
+
+static int wm8994_ldo_disable(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+
+ /* If we have no soft control assume that the LDO is always enabled. */
+ if (!ldo->enable)
+ return -EINVAL;
+
+ gpio_set_value(ldo->enable, 0);
+ ldo->is_enabled = false;
+
+ return 0;
+}
+
+static int wm8994_ldo_is_enabled(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+
+ return ldo->is_enabled;
+}
+
+static int wm8994_ldo_enable_time(struct regulator_dev *rdev)
+{
+ /* 3ms is fairly conservative but this shouldn't be too performance
+ * critical; can be tweaked per-system if required. */
+ return 3000;
+}
+
+static int wm8994_ldo1_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ if (selector > WM8994_LDO1_MAX_SELECTOR)
+ return -EINVAL;
+
+ return (selector * 100000) + 2400000;
+}
+
+static int wm8994_ldo1_get_voltage(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+ int val;
+
+ val = wm8994_reg_read(ldo->wm8994, WM8994_LDO_1);
+ if (val < 0)
+ return val;
+
+ val = (val & WM8994_LDO1_VSEL_MASK) >> WM8994_LDO1_VSEL_SHIFT;
+
+ return wm8994_ldo1_list_voltage(rdev, val);
+}
+
+static int wm8994_ldo1_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+ int selector, v;
+
+ selector = (min_uV - 2400000) / 100000;
+ v = wm8994_ldo1_list_voltage(rdev, selector);
+ if (v < 0 || v > max_uV)
+ return -EINVAL;
+
+ selector <<= WM8994_LDO1_VSEL_SHIFT;
+
+ return wm8994_set_bits(ldo->wm8994, WM8994_LDO_1,
+ WM8994_LDO1_VSEL_MASK, selector);
+}
+
+static struct regulator_ops wm8994_ldo1_ops = {
+ .enable = wm8994_ldo_enable,
+ .disable = wm8994_ldo_disable,
+ .is_enabled = wm8994_ldo_is_enabled,
+ .enable_time = wm8994_ldo_enable_time,
+
+ .list_voltage = wm8994_ldo1_list_voltage,
+ .get_voltage = wm8994_ldo1_get_voltage,
+ .set_voltage = wm8994_ldo1_set_voltage,
+};
+
+static int wm8994_ldo2_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ if (selector > WM8994_LDO2_MAX_SELECTOR)
+ return -EINVAL;
+
+ return (selector * 100000) + 900000;
+}
+
+static int wm8994_ldo2_get_voltage(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+ int val;
+
+ val = wm8994_reg_read(ldo->wm8994, WM8994_LDO_2);
+ if (val < 0)
+ return val;
+
+ val = (val & WM8994_LDO2_VSEL_MASK) >> WM8994_LDO2_VSEL_SHIFT;
+
+ return wm8994_ldo2_list_voltage(rdev, val);
+}
+
+static int wm8994_ldo2_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+ int selector, v;
+
+ selector = (min_uV - 900000) / 100000;
+ v = wm8994_ldo2_list_voltage(rdev, selector);
+ if (v < 0 || v > max_uV)
+ return -EINVAL;
+
+ selector <<= WM8994_LDO2_VSEL_SHIFT;
+
+ return wm8994_set_bits(ldo->wm8994, WM8994_LDO_2,
+ WM8994_LDO2_VSEL_MASK, selector);
+}
+
+static struct regulator_ops wm8994_ldo2_ops = {
+ .enable = wm8994_ldo_enable,
+ .disable = wm8994_ldo_disable,
+ .is_enabled = wm8994_ldo_is_enabled,
+ .enable_time = wm8994_ldo_enable_time,
+
+ .list_voltage = wm8994_ldo2_list_voltage,
+ .get_voltage = wm8994_ldo2_get_voltage,
+ .set_voltage = wm8994_ldo2_set_voltage,
+};
+
+static struct regulator_desc wm8994_ldo_desc[] = {
+ {
+ .name = "LDO1",
+ .id = 1,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8994_LDO1_MAX_SELECTOR + 1,
+ .ops = &wm8994_ldo1_ops,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO2",
+ .id = 2,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8994_LDO2_MAX_SELECTOR + 1,
+ .ops = &wm8994_ldo2_ops,
+ .owner = THIS_MODULE,
+ },
+};
+
+static __devinit int wm8994_ldo_probe(struct platform_device *pdev)
+{
+ struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent);
+ struct wm8994_pdata *pdata = wm8994->dev->platform_data;
+ int id = pdev->id % ARRAY_SIZE(pdata->ldo);
+ struct wm8994_ldo *ldo;
+ int ret;
+
+ dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
+
+ if (!pdata)
+ return -ENODEV;
+
+ ldo = kzalloc(sizeof(struct wm8994_ldo), GFP_KERNEL);
+ if (ldo == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ ldo->wm8994 = wm8994;
+
+ ldo->is_enabled = true;
+
+ if (pdata->ldo[id].enable && gpio_is_valid(pdata->ldo[id].enable)) {
+ ldo->enable = pdata->ldo[id].enable;
+
+ ret = gpio_request(ldo->enable, "WM8994 LDO enable");
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to get enable GPIO: %d\n",
+ ret);
+ goto err;
+ }
+
+ ret = gpio_direction_output(ldo->enable, ldo->is_enabled);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to set GPIO up: %d\n",
+ ret);
+ goto err_gpio;
+ }
+ }
+
+ ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &pdev->dev,
+ pdata->ldo[id].init_data, ldo);
+ if (IS_ERR(ldo->regulator)) {
+ ret = PTR_ERR(ldo->regulator);
+ dev_err(wm8994->dev, "Failed to register LDO%d: %d\n",
+ id + 1, ret);
+ goto err_gpio;
+ }
+
+ platform_set_drvdata(pdev, ldo);
+
+ return 0;
+
+err_gpio:
+ if (gpio_is_valid(ldo->enable))
+ gpio_free(ldo->enable);
+err:
+ kfree(ldo);
+ return ret;
+}
+
+static __devexit int wm8994_ldo_remove(struct platform_device *pdev)
+{
+ struct wm8994_ldo *ldo = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ regulator_unregister(ldo->regulator);
+ if (gpio_is_valid(ldo->enable))
+ gpio_free(ldo->enable);
+ kfree(ldo);
+
+ return 0;
+}
+
+static struct platform_driver wm8994_ldo_driver = {
+ .probe = wm8994_ldo_probe,
+ .remove = __devexit_p(wm8994_ldo_remove),
+ .driver = {
+ .name = "wm8994-ldo",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init wm8994_ldo_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&wm8994_ldo_driver);
+ if (ret != 0)
+ pr_err("Failed to register Wm8994 GP LDO driver: %d\n", ret);
+
+ return ret;
+}
+subsys_initcall(wm8994_ldo_init);
+
+static void __exit wm8994_ldo_exit(void)
+{
+ platform_driver_unregister(&wm8994_ldo_driver);
+}
+module_exit(wm8994_ldo_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM8994 LDO driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8994-ldo");
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-15 09:08:05 +0000