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-rw-r--r--Documentation/power/regulator/machine.txt19
-rw-r--r--drivers/regulator/88pm8607.c2
-rw-r--r--drivers/regulator/Kconfig10
-rw-r--r--drivers/regulator/Makefile1
-rw-r--r--drivers/regulator/aat2870-regulator.c1
-rw-r--r--drivers/regulator/core.c43
-rw-r--r--drivers/regulator/gpio-regulator.c358
-rw-r--r--drivers/regulator/max8649.c2
-rw-r--r--drivers/regulator/max8952.c3
-rw-r--r--drivers/regulator/tps65023-regulator.c183
-rw-r--r--drivers/regulator/tps6507x-regulator.c8
-rw-r--r--drivers/regulator/tps6586x-regulator.c32
-rw-r--r--drivers/regulator/tps65912-regulator.c2
-rw-r--r--include/linux/mfd/tps6586x.h16
-rw-r--r--include/linux/regulator/gpio-regulator.h87
-rw-r--r--include/linux/regulator/machine.h2
16 files changed, 721 insertions, 48 deletions
diff --git a/Documentation/power/regulator/machine.txt b/Documentation/power/regulator/machine.txt
index b42419b52e44..ce63af0a8e35 100644
--- a/Documentation/power/regulator/machine.txt
+++ b/Documentation/power/regulator/machine.txt
@@ -16,7 +16,7 @@ initialisation code by creating a struct regulator_consumer_supply for
each regulator.
struct regulator_consumer_supply {
- struct device *dev; /* consumer */
+ const char *dev_name; /* consumer dev_name() */
const char *supply; /* consumer supply - e.g. "vcc" */
};
@@ -24,13 +24,13 @@ e.g. for the machine above
static struct regulator_consumer_supply regulator1_consumers[] = {
{
- .dev = &platform_consumerB_device.dev,
- .supply = "Vcc",
+ .dev_name = "dev_name(consumer B)",
+ .supply = "Vcc",
},};
static struct regulator_consumer_supply regulator2_consumers[] = {
{
- .dev = &platform_consumerA_device.dev,
+ .dev = "dev_name(consumer A"),
.supply = "Vcc",
},};
@@ -43,6 +43,7 @@ to their supply regulator :-
static struct regulator_init_data regulator1_data = {
.constraints = {
+ .name = "Regulator-1",
.min_uV = 3300000,
.max_uV = 3300000,
.valid_modes_mask = REGULATOR_MODE_NORMAL,
@@ -51,13 +52,19 @@ static struct regulator_init_data regulator1_data = {
.consumer_supplies = regulator1_consumers,
};
+The name field should be set to something that is usefully descriptive
+for the board for configuration of supplies for other regulators and
+for use in logging and other diagnostic output. Normally the name
+used for the supply rail in the schematic is a good choice. If no
+name is provided then the subsystem will choose one.
+
Regulator-1 supplies power to Regulator-2. This relationship must be registered
with the core so that Regulator-1 is also enabled when Consumer A enables its
supply (Regulator-2). The supply regulator is set by the supply_regulator
-field below:-
+field below and co:-
static struct regulator_init_data regulator2_data = {
- .supply_regulator = "regulator_name",
+ .supply_regulator = "Regulator-1",
.constraints = {
.min_uV = 1800000,
.max_uV = 2000000,
diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c
index d63fddb0fbb0..e821b2159b4b 100644
--- a/drivers/regulator/88pm8607.c
+++ b/drivers/regulator/88pm8607.c
@@ -412,7 +412,7 @@ static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
if (info->desc.id == res->start)
break;
}
- if ((i < 0) || (i > PM8607_ID_RG_MAX)) {
+ if (i == ARRAY_SIZE(pm8607_regulator_info)) {
dev_err(&pdev->dev, "Failed to find regulator %llu\n",
(unsigned long long)res->start);
return -EINVAL;
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index c7fd2c0e3f2b..9713b1b860cb 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -64,6 +64,16 @@ config REGULATOR_USERSPACE_CONSUMER
If unsure, say no.
+config REGULATOR_GPIO
+ tristate "GPIO regulator support"
+ depends on GENERIC_GPIO
+ help
+ This driver provides support for regulators that can be
+ controlled via gpios.
+ It is capable of supporting current and voltage regulators
+ and the platform has to provide a mapping of GPIO-states
+ to target volts/amps.
+
config REGULATOR_BQ24022
tristate "TI bq24022 Dual Input 1-Cell Li-Ion Charger IC"
help
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 040d5aa63535..93a6318f5328 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o
+obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o
obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o
obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o
obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o
diff --git a/drivers/regulator/aat2870-regulator.c b/drivers/regulator/aat2870-regulator.c
index cd4104542f0d..5abeb3ac3e8d 100644
--- a/drivers/regulator/aat2870-regulator.c
+++ b/drivers/regulator/aat2870-regulator.c
@@ -22,6 +22,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
+#include <linux/module.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 9e4c123c4028..67fa2a3297ad 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1425,7 +1425,7 @@ int regulator_enable(struct regulator *regulator)
ret = _regulator_enable(rdev);
mutex_unlock(&rdev->mutex);
- if (ret != 0)
+ if (ret != 0 && rdev->supply)
regulator_disable(rdev->supply);
return ret;
@@ -2971,6 +2971,43 @@ void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data)
}
EXPORT_SYMBOL_GPL(regulator_get_init_drvdata);
+#ifdef CONFIG_DEBUG_FS
+static ssize_t supply_map_read_file(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ ssize_t len, ret = 0;
+ struct regulator_map *map;
+
+ if (!buf)
+ return -ENOMEM;
+
+ list_for_each_entry(map, &regulator_map_list, list) {
+ len = snprintf(buf + ret, PAGE_SIZE - ret,
+ "%s -> %s.%s\n",
+ rdev_get_name(map->regulator), map->dev_name,
+ map->supply);
+ if (len >= 0)
+ ret += len;
+ if (ret > PAGE_SIZE) {
+ ret = PAGE_SIZE;
+ break;
+ }
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+
+ kfree(buf);
+
+ return ret;
+}
+
+static const struct file_operations supply_map_fops = {
+ .read = supply_map_read_file,
+ .llseek = default_llseek,
+};
+#endif
+
static int __init regulator_init(void)
{
int ret;
@@ -2983,6 +3020,10 @@ static int __init regulator_init(void)
pr_warn("regulator: Failed to create debugfs directory\n");
debugfs_root = NULL;
}
+
+ if (IS_ERR(debugfs_create_file("supply_map", 0444, debugfs_root,
+ NULL, &supply_map_fops)))
+ pr_warn("regulator: Failed to create supplies debugfs\n");
#endif
regulator_dummy_init();
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
new file mode 100644
index 000000000000..f0acf52498bd
--- /dev/null
+++ b/drivers/regulator/gpio-regulator.c
@@ -0,0 +1,358 @@
+/*
+ * gpio-regulator.c
+ *
+ * Copyright 2011 Heiko Stuebner <heiko@sntech.de>
+ *
+ * based on fixed.c
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * Copyright (c) 2009 Nokia Corporation
+ * Roger Quadros <ext-roger.quadros@nokia.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/mutex.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/gpio-regulator.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+struct gpio_regulator_data {
+ struct regulator_desc desc;
+ struct regulator_dev *dev;
+
+ int enable_gpio;
+ bool enable_high;
+ bool is_enabled;
+ unsigned startup_delay;
+
+ struct gpio *gpios;
+ int nr_gpios;
+
+ struct gpio_regulator_state *states;
+ int nr_states;
+
+ int state;
+};
+
+static int gpio_regulator_is_enabled(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ return data->is_enabled;
+}
+
+static int gpio_regulator_enable(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ if (gpio_is_valid(data->enable_gpio)) {
+ gpio_set_value_cansleep(data->enable_gpio, data->enable_high);
+ data->is_enabled = true;
+ }
+
+ return 0;
+}
+
+static int gpio_regulator_disable(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ if (gpio_is_valid(data->enable_gpio)) {
+ gpio_set_value_cansleep(data->enable_gpio, !data->enable_high);
+ data->is_enabled = false;
+ }
+
+ return 0;
+}
+
+static int gpio_regulator_enable_time(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ return data->startup_delay;
+}
+
+static int gpio_regulator_get_value(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+ int ptr;
+
+ for (ptr = 0; ptr < data->nr_states; ptr++)
+ if (data->states[ptr].gpios == data->state)
+ return data->states[ptr].value;
+
+ return -EINVAL;
+}
+
+static int gpio_regulator_set_value(struct regulator_dev *dev,
+ int min, int max)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+ int ptr, target, state;
+
+ target = -1;
+ for (ptr = 0; ptr < data->nr_states; ptr++)
+ if (data->states[ptr].value >= min &&
+ data->states[ptr].value <= max)
+ target = data->states[ptr].gpios;
+
+ if (target < 0)
+ return -EINVAL;
+
+ for (ptr = 0; ptr < data->nr_gpios; ptr++) {
+ state = (target & (1 << ptr)) >> ptr;
+ gpio_set_value(data->gpios[ptr].gpio, state);
+ }
+ data->state = target;
+
+ return 0;
+}
+
+static int gpio_regulator_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ return gpio_regulator_set_value(dev, min_uV, max_uV);
+}
+
+static int gpio_regulator_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ if (selector >= data->nr_states)
+ return -EINVAL;
+
+ return data->states[selector].value;
+}
+
+static int gpio_regulator_set_current_limit(struct regulator_dev *dev,
+ int min_uA, int max_uA)
+{
+ return gpio_regulator_set_value(dev, min_uA, max_uA);
+}
+
+static struct regulator_ops gpio_regulator_voltage_ops = {
+ .is_enabled = gpio_regulator_is_enabled,
+ .enable = gpio_regulator_enable,
+ .disable = gpio_regulator_disable,
+ .enable_time = gpio_regulator_enable_time,
+ .get_voltage = gpio_regulator_get_value,
+ .set_voltage = gpio_regulator_set_voltage,
+ .list_voltage = gpio_regulator_list_voltage,
+};
+
+static struct regulator_ops gpio_regulator_current_ops = {
+ .is_enabled = gpio_regulator_is_enabled,
+ .enable = gpio_regulator_enable,
+ .disable = gpio_regulator_disable,
+ .enable_time = gpio_regulator_enable_time,
+ .get_current_limit = gpio_regulator_get_value,
+ .set_current_limit = gpio_regulator_set_current_limit,
+};
+
+static int __devinit gpio_regulator_probe(struct platform_device *pdev)
+{
+ struct gpio_regulator_config *config = pdev->dev.platform_data;
+ struct gpio_regulator_data *drvdata;
+ int ptr, ret, state;
+
+ drvdata = kzalloc(sizeof(struct gpio_regulator_data), GFP_KERNEL);
+ if (drvdata == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate device data\n");
+ return -ENOMEM;
+ }
+
+ drvdata->desc.name = kstrdup(config->supply_name, GFP_KERNEL);
+ if (drvdata->desc.name == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate supply name\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ drvdata->gpios = kmemdup(config->gpios,
+ config->nr_gpios * sizeof(struct gpio),
+ GFP_KERNEL);
+ if (drvdata->gpios == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate gpio data\n");
+ ret = -ENOMEM;
+ goto err_name;
+ }
+
+ drvdata->states = kmemdup(config->states,
+ config->nr_states *
+ sizeof(struct gpio_regulator_state),
+ GFP_KERNEL);
+ if (drvdata->states == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate state data\n");
+ ret = -ENOMEM;
+ goto err_memgpio;
+ }
+ drvdata->nr_states = config->nr_states;
+
+ drvdata->desc.owner = THIS_MODULE;
+
+ /* handle regulator type*/
+ switch (config->type) {
+ case REGULATOR_VOLTAGE:
+ drvdata->desc.type = REGULATOR_VOLTAGE;
+ drvdata->desc.ops = &gpio_regulator_voltage_ops;
+ drvdata->desc.n_voltages = config->nr_states;
+ break;
+ case REGULATOR_CURRENT:
+ drvdata->desc.type = REGULATOR_CURRENT;
+ drvdata->desc.ops = &gpio_regulator_current_ops;
+ break;
+ default:
+ dev_err(&pdev->dev, "No regulator type set\n");
+ ret = -EINVAL;
+ goto err_memgpio;
+ break;
+ }
+
+ drvdata->enable_gpio = config->enable_gpio;
+ drvdata->startup_delay = config->startup_delay;
+
+ if (gpio_is_valid(config->enable_gpio)) {
+ drvdata->enable_high = config->enable_high;
+
+ ret = gpio_request(config->enable_gpio, config->supply_name);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Could not obtain regulator enable GPIO %d: %d\n",
+ config->enable_gpio, ret);
+ goto err_memstate;
+ }
+
+ /* set output direction without changing state
+ * to prevent glitch
+ */
+ if (config->enabled_at_boot) {
+ drvdata->is_enabled = true;
+ ret = gpio_direction_output(config->enable_gpio,
+ config->enable_high);
+ } else {
+ drvdata->is_enabled = false;
+ ret = gpio_direction_output(config->enable_gpio,
+ !config->enable_high);
+ }
+
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Could not configure regulator enable GPIO %d direction: %d\n",
+ config->enable_gpio, ret);
+ goto err_enablegpio;
+ }
+ } else {
+ /* Regulator without GPIO control is considered
+ * always enabled
+ */
+ drvdata->is_enabled = true;
+ }
+
+ drvdata->nr_gpios = config->nr_gpios;
+ ret = gpio_request_array(drvdata->gpios, drvdata->nr_gpios);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Could not obtain regulator setting GPIOs: %d\n", ret);
+ goto err_enablegpio;
+ }
+
+ /* build initial state from gpio init data. */
+ state = 0;
+ for (ptr = 0; ptr < drvdata->nr_gpios; ptr++) {
+ if (config->gpios[ptr].flags & GPIOF_OUT_INIT_HIGH)
+ state |= (1 << ptr);
+ }
+ drvdata->state = state;
+
+ drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev,
+ config->init_data, drvdata);
+ if (IS_ERR(drvdata->dev)) {
+ ret = PTR_ERR(drvdata->dev);
+ dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
+ goto err_stategpio;
+ }
+
+ platform_set_drvdata(pdev, drvdata);
+
+ return 0;
+
+err_stategpio:
+ gpio_free_array(drvdata->gpios, drvdata->nr_gpios);
+err_enablegpio:
+ if (gpio_is_valid(config->enable_gpio))
+ gpio_free(config->enable_gpio);
+err_memstate:
+ kfree(drvdata->states);
+err_memgpio:
+ kfree(drvdata->gpios);
+err_name:
+ kfree(drvdata->desc.name);
+err:
+ kfree(drvdata);
+ return ret;
+}
+
+static int __devexit gpio_regulator_remove(struct platform_device *pdev)
+{
+ struct gpio_regulator_data *drvdata = platform_get_drvdata(pdev);
+
+ regulator_unregister(drvdata->dev);
+
+ gpio_free_array(drvdata->gpios, drvdata->nr_gpios);
+
+ kfree(drvdata->states);
+ kfree(drvdata->gpios);
+
+ if (gpio_is_valid(drvdata->enable_gpio))
+ gpio_free(drvdata->enable_gpio);
+
+ kfree(drvdata->desc.name);
+ kfree(drvdata);
+
+ return 0;
+}
+
+static struct platform_driver gpio_regulator_driver = {
+ .probe = gpio_regulator_probe,
+ .remove = __devexit_p(gpio_regulator_remove),
+ .driver = {
+ .name = "gpio-regulator",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init gpio_regulator_init(void)
+{
+ return platform_driver_register(&gpio_regulator_driver);
+}
+subsys_initcall(gpio_regulator_init);
+
+static void __exit gpio_regulator_exit(void)
+{
+ platform_driver_unregister(&gpio_regulator_driver);
+}
+module_exit(gpio_regulator_exit);
+
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
+MODULE_DESCRIPTION("gpio voltage regulator");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:gpio-regulator");
diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c
index 30eb9e54f7ec..1062cf9f02dc 100644
--- a/drivers/regulator/max8649.c
+++ b/drivers/regulator/max8649.c
@@ -221,7 +221,7 @@ static int max8649_enable_time(struct regulator_dev *rdev)
ret = (ret & MAX8649_RAMP_MASK) >> 5;
rate = (32 * 1000) >> ret; /* uV/uS */
- return (voltage / rate);
+ return DIV_ROUND_UP(voltage, rate);
}
static int max8649_set_mode(struct regulator_dev *rdev, unsigned int mode)
diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c
index 486ed8141fcd..3883d85c5b88 100644
--- a/drivers/regulator/max8952.c
+++ b/drivers/regulator/max8952.c
@@ -26,7 +26,6 @@
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/max8952.h>
-#include <linux/mutex.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/slab.h>
@@ -47,7 +46,6 @@ enum {
struct max8952_data {
struct i2c_client *client;
struct device *dev;
- struct mutex mutex;
struct max8952_platform_data *pdata;
struct regulator_dev *rdev;
@@ -208,7 +206,6 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client,
max8952->client = client;
max8952->dev = &client->dev;
max8952->pdata = pdata;
- mutex_init(&max8952->mutex);
max8952->rdev = regulator_register(&regulator, max8952->dev,
&pdata->reg_data, max8952);
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index 701a5900f83f..9fb4c7b81753 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -63,6 +63,13 @@
#define TPS65023_REG_CTRL_LDO2_EN BIT(2)
#define TPS65023_REG_CTRL_LDO1_EN BIT(1)
+/* REG_CTRL2 bitfields */
+#define TPS65023_REG_CTRL2_GO BIT(7)
+#define TPS65023_REG_CTRL2_CORE_ADJ BIT(6)
+#define TPS65023_REG_CTRL2_DCDC2 BIT(2)
+#define TPS65023_REG_CTRL2_DCDC1 BIT(1)
+#define TPS65023_REG_CTRL2_DCDC3 BIT(0)
+
/* LDO_CTRL bitfields */
#define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4)
#define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4))
@@ -85,7 +92,7 @@
#define TPS65023_MAX_REG_ID TPS65023_LDO_2
/* Supported voltage values for regulators */
-static const u16 VDCDC1_VSEL_table[] = {
+static const u16 VCORE_VSEL_table[] = {
800, 825, 850, 875,
900, 925, 950, 975,
1000, 1025, 1050, 1075,
@@ -96,20 +103,29 @@ static const u16 VDCDC1_VSEL_table[] = {
1500, 1525, 1550, 1600,
};
-static const u16 LDO1_VSEL_table[] = {
+/* Supported voltage values for LDO regulators for tps65020 */
+static const u16 TPS65020_LDO1_VSEL_table[] = {
+ 1000, 1050, 1100, 1300,
+ 1800, 2500, 3000, 3300,
+};
+
+static const u16 TPS65020_LDO2_VSEL_table[] = {
+ 1000, 1050, 1100, 1300,
+ 1800, 2500, 3000, 3300,
+};
+
+/* Supported voltage values for LDO regulators
+ * for tps65021 and tps65023 */
+static const u16 TPS65023_LDO1_VSEL_table[] = {
1000, 1100, 1300, 1800,
2200, 2600, 2800, 3150,
};
-static const u16 LDO2_VSEL_table[] = {
+static const u16 TPS65023_LDO2_VSEL_table[] = {
1050, 1200, 1300, 1800,
2500, 2800, 3000, 3300,
};
-static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDC1_VSEL_table),
- 0, 0, ARRAY_SIZE(LDO1_VSEL_table),
- ARRAY_SIZE(LDO2_VSEL_table)};
-
/* Regulator specific details */
struct tps_info {
const char *name;
@@ -127,6 +143,13 @@ struct tps_pmic {
struct regulator_dev *rdev[TPS65023_NUM_REGULATOR];
const struct tps_info *info[TPS65023_NUM_REGULATOR];
struct regmap *regmap;
+ u8 core_regulator;
+};
+
+/* Struct passed as driver data */
+struct tps_driver_data {
+ const struct tps_info *info;
+ u8 core_regulator;
};
static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
@@ -253,7 +276,7 @@ static int tps65023_dcdc_get_voltage(struct regulator_dev *dev)
if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
return -EINVAL;
- if (dcdc == TPS65023_DCDC_1) {
+ if (dcdc == tps->core_regulator) {
data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE);
if (data < 0)
return data;
@@ -270,10 +293,10 @@ static int tps65023_dcdc_set_voltage(struct regulator_dev *dev,
struct tps_pmic *tps = rdev_get_drvdata(dev);
int dcdc = rdev_get_id(dev);
int vsel;
+ int ret;
- if (dcdc != TPS65023_DCDC_1)
+ if (dcdc != tps->core_regulator)
return -EINVAL;
-
if (min_uV < tps->info[dcdc]->min_uV
|| min_uV > tps->info[dcdc]->max_uV)
return -EINVAL;
@@ -292,11 +315,21 @@ static int tps65023_dcdc_set_voltage(struct regulator_dev *dev,
*selector = vsel;
- /* write to the register in case we found a match */
if (vsel == tps->info[dcdc]->table_len)
- return -EINVAL;
- else
- return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel);
+ goto failed;
+
+ ret = tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel);
+
+ /* Tell the chip that we have changed the value in DEFCORE
+ * and its time to update the core voltage
+ */
+ tps_65023_set_bits(tps, TPS65023_REG_CON_CTRL2,
+ TPS65023_REG_CTRL2_GO);
+
+ return ret;
+
+failed:
+ return -EINVAL;
}
static int tps65023_ldo_get_voltage(struct regulator_dev *dev)
@@ -362,7 +395,7 @@ static int tps65023_dcdc_list_voltage(struct regulator_dev *dev,
if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
return -EINVAL;
- if (dcdc == TPS65023_DCDC_1) {
+ if (dcdc == tps->core_regulator) {
if (selector >= tps->info[dcdc]->table_len)
return -EINVAL;
else
@@ -414,7 +447,8 @@ static struct regmap_config tps65023_regmap_config = {
static int __devinit tps_65023_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- const struct tps_info *info = (void *)id->driver_data;
+ const struct tps_driver_data *drv_data = (void *)id->driver_data;
+ const struct tps_info *info = drv_data->info;
struct regulator_init_data *init_data;
struct regulator_dev *rdev;
struct tps_pmic *tps;
@@ -446,6 +480,7 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
/* common for all regulators */
tps->client = client;
+ tps->core_regulator = drv_data->core_regulator;
for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) {
/* Store regulator specific information */
@@ -453,7 +488,7 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
tps->desc[i].name = info->name;
tps->desc[i].id = i;
- tps->desc[i].n_voltages = num_voltages[i];
+ tps->desc[i].n_voltages = info->table_len;
tps->desc[i].ops = (i > TPS65023_DCDC_3 ?
&tps65023_ldo_ops : &tps65023_dcdc_ops);
tps->desc[i].type = REGULATOR_VOLTAGE;
@@ -475,6 +510,14 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
i2c_set_clientdata(client, tps);
+ /* Enable setting output voltage by I2C */
+ tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2,
+ TPS65023_REG_CTRL2_CORE_ADJ);
+
+ /* Enable setting output voltage by I2C */
+ tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2,
+ TPS65023_REG_CTRL2_CORE_ADJ);
+
return 0;
fail:
@@ -507,13 +550,86 @@ static int __devexit tps_65023_remove(struct i2c_client *client)
return 0;
}
+static const struct tps_info tps65020_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65020_LDO1_VSEL_table),
+ .table = TPS65020_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65020_LDO2_VSEL_table),
+ .table = TPS65020_LDO2_VSEL_table,
+ },
+};
+
+static const struct tps_info tps65021_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
+ .table = TPS65023_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
+ .table = TPS65023_LDO2_VSEL_table,
+ },
+};
+
static const struct tps_info tps65023_regs[] = {
{
.name = "VDCDC1",
.min_uV = 800000,
.max_uV = 1600000,
- .table_len = ARRAY_SIZE(VDCDC1_VSEL_table),
- .table = VDCDC1_VSEL_table,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
},
{
.name = "VDCDC2",
@@ -531,23 +647,40 @@ static const struct tps_info tps65023_regs[] = {
.name = "LDO1",
.min_uV = 1000000,
.max_uV = 3150000,
- .table_len = ARRAY_SIZE(LDO1_VSEL_table),
- .table = LDO1_VSEL_table,
+ .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
+ .table = TPS65023_LDO1_VSEL_table,
},
{
.name = "LDO2",
.min_uV = 1050000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(LDO2_VSEL_table),
- .table = LDO2_VSEL_table,
+ .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
+ .table = TPS65023_LDO2_VSEL_table,
},
};
+static struct tps_driver_data tps65020_drv_data = {
+ .info = tps65020_regs,
+ .core_regulator = TPS65023_DCDC_3,
+};
+
+static struct tps_driver_data tps65021_drv_data = {
+ .info = tps65021_regs,
+ .core_regulator = TPS65023_DCDC_3,
+};
+
+static struct tps_driver_data tps65023_drv_data = {
+ .info = tps65023_regs,
+ .core_regulator = TPS65023_DCDC_1,
+};
+
static const struct i2c_device_id tps_65023_id[] = {
{.name = "tps65023",
- .driver_data = (unsigned long) tps65023_regs,},
+ .driver_data = (unsigned long) &tps65023_drv_data},
{.name = "tps65021",
- .driver_data = (unsigned long) tps65023_regs,},
+ .driver_data = (unsigned long) &tps65021_drv_data,},
+ {.name = "tps65020",
+ .driver_data = (unsigned long) &tps65020_drv_data},
{ },
};
diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
index bfffabc21eda..bdef70365f52 100644
--- a/drivers/regulator/tps6507x-regulator.c
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -90,12 +90,6 @@ static const u16 LDO2_VSEL_table[] = {
3000, 3100, 3200, 3300,
};
-static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDCx_VSEL_table),
- ARRAY_SIZE(VDCDCx_VSEL_table),
- ARRAY_SIZE(VDCDCx_VSEL_table),
- ARRAY_SIZE(LDO1_VSEL_table),
- ARRAY_SIZE(LDO2_VSEL_table)};
-
struct tps_info {
const char *name;
unsigned min_uV;
@@ -598,7 +592,7 @@ int tps6507x_pmic_probe(struct platform_device *pdev)
tps->desc[i].name = info->name;
tps->desc[i].id = i;
- tps->desc[i].n_voltages = num_voltages[i];
+ tps->desc[i].n_voltages = info->table_len;
tps->desc[i].ops = (i > TPS6507X_DCDC_3 ?
&tps6507x_pmic_ldo_ops : &tps6507x_pmic_dcdc_ops);
tps->desc[i].type = REGULATOR_VOLTAGE;
diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index bb04a75a4c98..dbcf09d5080c 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -332,6 +332,36 @@ static inline int tps6586x_regulator_preinit(struct device *parent,
1 << ri->enable_bit[1]);
}
+static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev)
+{
+ struct device *parent = pdev->dev.parent;
+ struct regulator_init_data *p = pdev->dev.platform_data;
+ struct tps6586x_settings *setting = p->driver_data;
+ uint8_t reg;
+
+ if (setting == NULL)
+ return 0;
+
+ if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET))
+ return 0;
+
+ /* only SM0 and SM1 can have the slew rate settings */
+ switch (pdev->id) {
+ case TPS6586X_ID_SM_0:
+ reg = TPS6586X_SM0SL;
+ break;
+ case TPS6586X_ID_SM_1:
+ reg = TPS6586X_SM1SL;
+ break;
+ default:
+ dev_warn(&pdev->dev, "Only SM0/SM1 can set slew rate\n");
+ return -EINVAL;
+ }
+
+ return tps6586x_write(parent, reg,
+ setting->slew_rate & TPS6586X_SLEW_RATE_MASK);
+}
+
static inline struct tps6586x_regulator *find_regulator_info(int id)
{
struct tps6586x_regulator *ri;
@@ -374,7 +404,7 @@ static int __devinit tps6586x_regulator_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, rdev);
- return 0;
+ return tps6586x_regulator_set_slew_rate(pdev);
}
static int __devexit tps6586x_regulator_remove(struct platform_device *pdev)
diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index 3a9313e00fac..39d4a1749e71 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -43,8 +43,6 @@
#define TPS65912_REG_LDO9 12
#define TPS65912_REG_LDO10 13
-#define TPS65912_MAX_REG_ID TPS65912_REG_LDO_10
-
/* Number of step-down converters available */
#define TPS65912_NUM_DCDC 4
diff --git a/include/linux/mfd/tps6586x.h b/include/linux/mfd/tps6586x.h
index b6bab1b04e25..b19176eab44d 100644
--- a/include/linux/mfd/tps6586x.h
+++ b/include/linux/mfd/tps6586x.h
@@ -1,6 +1,18 @@
#ifndef __LINUX_MFD_TPS6586X_H
#define __LINUX_MFD_TPS6586X_H
+#define TPS6586X_SLEW_RATE_INSTANTLY 0x00
+#define TPS6586X_SLEW_RATE_110UV 0x01
+#define TPS6586X_SLEW_RATE_220UV 0x02
+#define TPS6586X_SLEW_RATE_440UV 0x03
+#define TPS6586X_SLEW_RATE_880UV 0x04
+#define TPS6586X_SLEW_RATE_1760UV 0x05
+#define TPS6586X_SLEW_RATE_3520UV 0x06
+#define TPS6586X_SLEW_RATE_7040UV 0x07
+
+#define TPS6586X_SLEW_RATE_SET 0x08
+#define TPS6586X_SLEW_RATE_MASK 0x07
+
enum {
TPS6586X_ID_SM_0,
TPS6586X_ID_SM_1,
@@ -48,6 +60,10 @@ enum {
TPS6586X_INT_RTC_ALM2,
};
+struct tps6586x_settings {
+ int slew_rate;
+};
+
struct tps6586x_subdev_info {
int id;
const char *name;
diff --git a/include/linux/regulator/gpio-regulator.h b/include/linux/regulator/gpio-regulator.h
new file mode 100644
index 000000000000..19fbd267406d
--- /dev/null
+++ b/include/linux/regulator/gpio-regulator.h
@@ -0,0 +1,87 @@
+/*
+ * gpio-regulator.h
+ *
+ * Copyright 2011 Heiko Stuebner <heiko@sntech.de>
+ *
+ * based on fixed.h
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * Copyright (c) 2009 Nokia Corporation
+ * Roger Quadros <ext-roger.quadros@nokia.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.
+ */
+
+#ifndef __REGULATOR_GPIO_H
+#define __REGULATOR_GPIO_H
+
+struct regulator_init_data;
+
+enum regulator_type;
+
+/**
+ * struct gpio_regulator_state - state description
+ * @value: microvolts or microamps
+ * @gpios: bitfield of gpio target-states for the value
+ *
+ * This structure describes a supported setting of the regulator
+ * and the necessary gpio-state to achieve it.
+ *
+ * The n-th bit in the bitfield describes the state of the n-th GPIO
+ * from the gpios-array defined in gpio_regulator_config below.
+ */
+struct gpio_regulator_state {
+ int value;
+ int gpios;
+};
+
+/**
+ * struct gpio_regulator_config - config structure
+ * @supply_name: Name of the regulator supply
+ * @enable_gpio: GPIO to use for enable control
+ * set to -EINVAL if not used
+ * @enable_high: Polarity of enable GPIO
+ * 1 = Active high, 0 = Active low
+ * @enabled_at_boot: Whether regulator has been enabled at
+ * boot or not. 1 = Yes, 0 = No
+ * This is used to keep the regulator at
+ * the default state
+ * @startup_delay: Start-up time in microseconds
+ * @gpios: Array containing the gpios needed to control
+ * the setting of the regulator
+ * @nr_gpios: Number of gpios
+ * @states: Array of gpio_regulator_state entries describing
+ * the gpio state for specific voltages
+ * @nr_states: Number of states available
+ * @regulator_type: either REGULATOR_CURRENT or REGULATOR_VOLTAGE
+ * @init_data: regulator_init_data
+ *
+ * This structure contains gpio-voltage regulator configuration
+ * information that must be passed by platform code to the
+ * gpio-voltage regulator driver.
+ */
+struct gpio_regulator_config {
+ const char *supply_name;
+
+ int enable_gpio;
+ unsigned enable_high:1;
+ unsigned enabled_at_boot:1;
+ unsigned startup_delay;
+
+ struct gpio *gpios;
+ int nr_gpios;
+
+ struct gpio_regulator_state *states;
+ int nr_states;
+
+ enum regulator_type type;
+ struct regulator_init_data *init_data;
+};
+
+#endif
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index ce3127a75c88..f3f13fd5868f 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -95,7 +95,7 @@ struct regulator_state {
*/
struct regulation_constraints {
- char *name;
+ const char *name;
/* voltage output range (inclusive) - for voltage control */
int min_uV;
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