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-rw-r--r--drivers/regulator/Kconfig31
-rw-r--r--drivers/regulator/Makefile5
-rw-r--r--drivers/regulator/db8500-prcmu.c118
-rw-r--r--drivers/regulator/dbx500-prcmu.c241
-rw-r--r--drivers/regulator/dbx500-prcmu.h63
-rw-r--r--drivers/regulator/max8997.c8
-rw-r--r--drivers/regulator/mc13xxx-regulator-core.c2
-rw-r--r--drivers/regulator/s5m8767.c832
-rw-r--r--drivers/regulator/tps62360-regulator.c472
-rw-r--r--drivers/regulator/tps65217-regulator.c493
-rw-r--r--drivers/regulator/tps65910-regulator.c280
-rw-r--r--drivers/regulator/wm8350-regulator.c4
-rw-r--r--include/linux/mfd/tps65910.h8
-rw-r--r--include/linux/regulator/tps62360.h57
14 files changed, 2492 insertions, 122 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 7a61b17ddd04..376824b865a4 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -136,6 +136,14 @@ config REGULATOR_MAX8998
via I2C bus. The provided regulator is suitable for S3C6410
and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages.
+config REGULATOR_S5M8767
+ tristate "Samsung S5M8767A voltage regulator"
+ depends on MFD_S5M_CORE
+ help
+ This driver supports a Samsung S5M8767A voltage output regulator
+ via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and
+ supports DVS mode with 8bits of output voltage control.
+
config REGULATOR_TWL4030
bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
depends on TWL4030_CORE
@@ -267,6 +275,15 @@ config REGULATOR_TPS6507X
three step-down converters and two general-purpose LDO voltage regulators.
It supports TI's software based Class-2 SmartReflex implementation.
+config REGULATOR_TPS65217
+ tristate "TI TPS65217 Power regulators"
+ depends on MFD_TPS65217
+ help
+ This driver supports TPS65217 voltage regulator chips. TPS65217
+ provides three step-down converters and four general-purpose LDO
+ voltage regulators. It supports software based voltage control
+ for different voltage domains
+
config REGULATOR_TPS65912
tristate "TI TPS65912 Power regulator"
depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
@@ -299,9 +316,13 @@ config REGULATOR_AB8500
This driver supports the regulators found on the ST-Ericsson mixed
signal AB8500 PMIC
+config REGULATOR_DBX500_PRCMU
+ bool
+
config REGULATOR_DB8500_PRCMU
bool "ST-Ericsson DB8500 Voltage Domain Regulators"
depends on MFD_DB8500_PRCMU
+ select REGULATOR_DBX500_PRCMU
help
This driver supports the voltage domain regulators controlled by the
DB8500 PRCMU
@@ -328,6 +349,16 @@ config REGULATOR_TPS65910
help
This driver supports TPS65910 voltage regulator chips.
+config REGULATOR_TPS62360
+ tristate "TI TPS62360 Power Regulator"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This driver supports TPS62360 voltage regulator chip. This
+ regulator is meant for processor core supply. This chip is
+ high-frequency synchronous step down dc-dc converter optimized
+ for battery-powered portable applications.
+
config REGULATOR_AAT2870
tristate "AnalogicTech AAT2870 Regulators"
depends on MFD_AAT2870_CORE
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 503bac87715e..4cbf8c55f8a9 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -40,13 +40,18 @@ obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o
obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o
obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
+obj-$(CONFIG_REGULATOR_TPS65217) += tps65217-regulator.o
obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o
+obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o
obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
+obj-$(CONFIG_REGULATOR_TPS62360) += tps62360-regulator.o
obj-$(CONFIG_REGULATOR_AAT2870) += aat2870-regulator.o
+obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o
+
ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
diff --git a/drivers/regulator/db8500-prcmu.c b/drivers/regulator/db8500-prcmu.c
index 515443fcd26b..4bd25e75efa0 100644
--- a/drivers/regulator/db8500-prcmu.c
+++ b/drivers/regulator/db8500-prcmu.c
@@ -18,74 +18,11 @@
#include <linux/regulator/machine.h>
#include <linux/regulator/db8500-prcmu.h>
#include <linux/module.h>
-
-/*
- * power state reference count
- */
-static int power_state_active_cnt; /* will initialize to zero */
-static DEFINE_SPINLOCK(power_state_active_lock);
-
-static void power_state_active_enable(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&power_state_active_lock, flags);
- power_state_active_cnt++;
- spin_unlock_irqrestore(&power_state_active_lock, flags);
-}
-
-static int power_state_active_disable(void)
-{
- int ret = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&power_state_active_lock, flags);
- if (power_state_active_cnt <= 0) {
- pr_err("power state: unbalanced enable/disable calls\n");
- ret = -EINVAL;
- goto out;
- }
-
- power_state_active_cnt--;
-out:
- spin_unlock_irqrestore(&power_state_active_lock, flags);
- return ret;
-}
-
-/*
- * Exported interface for CPUIdle only. This function is called when interrupts
- * are turned off. Hence, no locking.
- */
-int power_state_active_is_enabled(void)
-{
- return (power_state_active_cnt > 0);
-}
-
-/**
- * struct db8500_regulator_info - db8500 regulator information
- * @dev: device pointer
- * @desc: regulator description
- * @rdev: regulator device pointer
- * @is_enabled: status of the regulator
- * @epod_id: id for EPOD (power domain)
- * @is_ramret: RAM retention switch for EPOD (power domain)
- * @operating_point: operating point (only for vape, to be removed)
- *
- */
-struct db8500_regulator_info {
- struct device *dev;
- struct regulator_desc desc;
- struct regulator_dev *rdev;
- bool is_enabled;
- u16 epod_id;
- bool is_ramret;
- bool exclude_from_power_state;
- unsigned int operating_point;
-};
+#include "dbx500-prcmu.h"
static int db8500_regulator_enable(struct regulator_dev *rdev)
{
- struct db8500_regulator_info *info = rdev_get_drvdata(rdev);
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
if (info == NULL)
return -EINVAL;
@@ -93,16 +30,18 @@ static int db8500_regulator_enable(struct regulator_dev *rdev)
dev_vdbg(rdev_get_dev(rdev), "regulator-%s-enable\n",
info->desc.name);
- info->is_enabled = true;
- if (!info->exclude_from_power_state)
- power_state_active_enable();
+ if (!info->is_enabled) {
+ info->is_enabled = true;
+ if (!info->exclude_from_power_state)
+ power_state_active_enable();
+ }
return 0;
}
static int db8500_regulator_disable(struct regulator_dev *rdev)
{
- struct db8500_regulator_info *info = rdev_get_drvdata(rdev);
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
int ret = 0;
if (info == NULL)
@@ -111,16 +50,18 @@ static int db8500_regulator_disable(struct regulator_dev *rdev)
dev_vdbg(rdev_get_dev(rdev), "regulator-%s-disable\n",
info->desc.name);
- info->is_enabled = false;
- if (!info->exclude_from_power_state)
- ret = power_state_active_disable();
+ if (info->is_enabled) {
+ info->is_enabled = false;
+ if (!info->exclude_from_power_state)
+ ret = power_state_active_disable();
+ }
return ret;
}
static int db8500_regulator_is_enabled(struct regulator_dev *rdev)
{
- struct db8500_regulator_info *info = rdev_get_drvdata(rdev);
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
if (info == NULL)
return -EINVAL;
@@ -197,7 +138,7 @@ static int disable_epod(u16 epod_id, bool ramret)
*/
static int db8500_regulator_switch_enable(struct regulator_dev *rdev)
{
- struct db8500_regulator_info *info = rdev_get_drvdata(rdev);
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
int ret;
if (info == NULL)
@@ -221,7 +162,7 @@ out:
static int db8500_regulator_switch_disable(struct regulator_dev *rdev)
{
- struct db8500_regulator_info *info = rdev_get_drvdata(rdev);
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
int ret;
if (info == NULL)
@@ -245,7 +186,7 @@ out:
static int db8500_regulator_switch_is_enabled(struct regulator_dev *rdev)
{
- struct db8500_regulator_info *info = rdev_get_drvdata(rdev);
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
if (info == NULL)
return -EINVAL;
@@ -266,8 +207,8 @@ static struct regulator_ops db8500_regulator_switch_ops = {
/*
* Regulator information
*/
-static struct db8500_regulator_info
-db8500_regulator_info[DB8500_NUM_REGULATORS] = {
+static struct dbx500_regulator_info
+dbx500_regulator_info[DB8500_NUM_REGULATORS] = {
[DB8500_REGULATOR_VAPE] = {
.desc = {
.name = "db8500-vape",
@@ -476,12 +417,12 @@ static int __devinit db8500_regulator_probe(struct platform_device *pdev)
int i, err;
/* register all regulators */
- for (i = 0; i < ARRAY_SIZE(db8500_regulator_info); i++) {
- struct db8500_regulator_info *info;
+ for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) {
+ struct dbx500_regulator_info *info;
struct regulator_init_data *init_data = &db8500_init_data[i];
/* assign per-regulator data */
- info = &db8500_regulator_info[i];
+ info = &dbx500_regulator_info[i];
info->dev = &pdev->dev;
/* register with the regulator framework */
@@ -494,7 +435,7 @@ static int __devinit db8500_regulator_probe(struct platform_device *pdev)
/* if failing, unregister all earlier regulators */
while (--i >= 0) {
- info = &db8500_regulator_info[i];
+ info = &dbx500_regulator_info[i];
regulator_unregister(info->rdev);
}
return err;
@@ -503,17 +444,22 @@ static int __devinit db8500_regulator_probe(struct platform_device *pdev)
dev_dbg(rdev_get_dev(info->rdev),
"regulator-%s-probed\n", info->desc.name);
}
+ err = ux500_regulator_debug_init(pdev,
+ dbx500_regulator_info,
+ ARRAY_SIZE(dbx500_regulator_info));
- return 0;
+ return err;
}
static int __exit db8500_regulator_remove(struct platform_device *pdev)
{
int i;
- for (i = 0; i < ARRAY_SIZE(db8500_regulator_info); i++) {
- struct db8500_regulator_info *info;
- info = &db8500_regulator_info[i];
+ ux500_regulator_debug_exit();
+
+ for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) {
+ struct dbx500_regulator_info *info;
+ info = &dbx500_regulator_info[i];
dev_vdbg(rdev_get_dev(info->rdev),
"regulator-%s-remove\n", info->desc.name);
diff --git a/drivers/regulator/dbx500-prcmu.c b/drivers/regulator/dbx500-prcmu.c
new file mode 100644
index 000000000000..f2e5ecdc5864
--- /dev/null
+++ b/drivers/regulator/dbx500-prcmu.c
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License v2
+ * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ * Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson
+ *
+ * UX500 common part of Power domain regulators
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/regulator/driver.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+
+#include "dbx500-prcmu.h"
+
+/*
+ * power state reference count
+ */
+static int power_state_active_cnt; /* will initialize to zero */
+static DEFINE_SPINLOCK(power_state_active_lock);
+
+int power_state_active_get(void)
+{
+ unsigned long flags;
+ int cnt;
+
+ spin_lock_irqsave(&power_state_active_lock, flags);
+ cnt = power_state_active_cnt;
+ spin_unlock_irqrestore(&power_state_active_lock, flags);
+
+ return cnt;
+}
+
+void power_state_active_enable(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&power_state_active_lock, flags);
+ power_state_active_cnt++;
+ spin_unlock_irqrestore(&power_state_active_lock, flags);
+}
+
+int power_state_active_disable(void)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&power_state_active_lock, flags);
+ if (power_state_active_cnt <= 0) {
+ pr_err("power state: unbalanced enable/disable calls\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ power_state_active_cnt--;
+out:
+ spin_unlock_irqrestore(&power_state_active_lock, flags);
+ return ret;
+}
+
+#ifdef CONFIG_REGULATOR_DEBUG
+
+static struct ux500_regulator_debug {
+ struct dentry *dir;
+ struct dentry *status_file;
+ struct dentry *power_state_cnt_file;
+ struct dbx500_regulator_info *regulator_array;
+ int num_regulators;
+ u8 *state_before_suspend;
+ u8 *state_after_suspend;
+} rdebug;
+
+void ux500_regulator_suspend_debug(void)
+{
+ int i;
+ for (i = 0; i < rdebug.num_regulators; i++)
+ rdebug.state_before_suspend[i] =
+ rdebug.regulator_array[i].is_enabled;
+}
+
+void ux500_regulator_resume_debug(void)
+{
+ int i;
+ for (i = 0; i < rdebug.num_regulators; i++)
+ rdebug.state_after_suspend[i] =
+ rdebug.regulator_array[i].is_enabled;
+}
+
+static int ux500_regulator_power_state_cnt_print(struct seq_file *s, void *p)
+{
+ struct device *dev = s->private;
+ int err;
+
+ /* print power state count */
+ err = seq_printf(s, "ux500-regulator power state count: %i\n",
+ power_state_active_get());
+ if (err < 0)
+ dev_err(dev, "seq_printf overflow\n");
+
+ return 0;
+}
+
+static int ux500_regulator_power_state_cnt_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ux500_regulator_power_state_cnt_print,
+ inode->i_private);
+}
+
+static const struct file_operations ux500_regulator_power_state_cnt_fops = {
+ .open = ux500_regulator_power_state_cnt_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ux500_regulator_status_print(struct seq_file *s, void *p)
+{
+ struct device *dev = s->private;
+ int err;
+ int i;
+
+ /* print dump header */
+ err = seq_printf(s, "ux500-regulator status:\n");
+ if (err < 0)
+ dev_err(dev, "seq_printf overflow\n");
+
+ err = seq_printf(s, "%31s : %8s : %8s\n", "current",
+ "before", "after");
+ if (err < 0)
+ dev_err(dev, "seq_printf overflow\n");
+
+ for (i = 0; i < rdebug.num_regulators; i++) {
+ struct dbx500_regulator_info *info;
+ /* Access per-regulator data */
+ info = &rdebug.regulator_array[i];
+
+ /* print status */
+ err = seq_printf(s, "%20s : %8s : %8s : %8s\n", info->desc.name,
+ info->is_enabled ? "enabled" : "disabled",
+ rdebug.state_before_suspend[i] ? "enabled" : "disabled",
+ rdebug.state_after_suspend[i] ? "enabled" : "disabled");
+ if (err < 0)
+ dev_err(dev, "seq_printf overflow\n");
+ }
+
+ return 0;
+}
+
+static int ux500_regulator_status_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ux500_regulator_status_print,
+ inode->i_private);
+}
+
+static const struct file_operations ux500_regulator_status_fops = {
+ .open = ux500_regulator_status_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+int __attribute__((weak)) dbx500_regulator_testcase(
+ struct dbx500_regulator_info *regulator_info,
+ int num_regulators)
+{
+ return 0;
+}
+
+int __devinit
+ux500_regulator_debug_init(struct platform_device *pdev,
+ struct dbx500_regulator_info *regulator_info,
+ int num_regulators)
+{
+ /* create directory */
+ rdebug.dir = debugfs_create_dir("ux500-regulator", NULL);
+ if (!rdebug.dir)
+ goto exit_no_debugfs;
+
+ /* create "status" file */
+ rdebug.status_file = debugfs_create_file("status",
+ S_IRUGO, rdebug.dir, &pdev->dev,
+ &ux500_regulator_status_fops);
+ if (!rdebug.status_file)
+ goto exit_destroy_dir;
+
+ /* create "power-state-count" file */
+ rdebug.power_state_cnt_file = debugfs_create_file("power-state-count",
+ S_IRUGO, rdebug.dir, &pdev->dev,
+ &ux500_regulator_power_state_cnt_fops);
+ if (!rdebug.power_state_cnt_file)
+ goto exit_destroy_status;
+
+ rdebug.regulator_array = regulator_info;
+ rdebug.num_regulators = num_regulators;
+
+ rdebug.state_before_suspend = kzalloc(num_regulators, GFP_KERNEL);
+ if (!rdebug.state_before_suspend) {
+ dev_err(&pdev->dev,
+ "could not allocate memory for saving state\n");
+ goto exit_destroy_power_state;
+ }
+
+ rdebug.state_after_suspend = kzalloc(num_regulators, GFP_KERNEL);
+ if (!rdebug.state_after_suspend) {
+ dev_err(&pdev->dev,
+ "could not allocate memory for saving state\n");
+ goto exit_free;
+ }
+
+ dbx500_regulator_testcase(regulator_info, num_regulators);
+ return 0;
+
+exit_free:
+ kfree(rdebug.state_before_suspend);
+exit_destroy_power_state:
+ debugfs_remove(rdebug.power_state_cnt_file);
+exit_destroy_status:
+ debugfs_remove(rdebug.status_file);
+exit_destroy_dir:
+ debugfs_remove(rdebug.dir);
+exit_no_debugfs:
+ dev_err(&pdev->dev, "failed to create debugfs entries.\n");
+ return -ENOMEM;
+}
+
+int __devexit ux500_regulator_debug_exit(void)
+{
+ debugfs_remove_recursive(rdebug.dir);
+ kfree(rdebug.state_after_suspend);
+ kfree(rdebug.state_before_suspend);
+
+ return 0;
+}
+#endif
diff --git a/drivers/regulator/dbx500-prcmu.h b/drivers/regulator/dbx500-prcmu.h
new file mode 100644
index 000000000000..e763883a44f4
--- /dev/null
+++ b/drivers/regulator/dbx500-prcmu.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Bengt Jonsson <bengt.jonsson@stericsson.com> for ST-Ericsson,
+ * Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson
+ *
+ * License Terms: GNU General Public License v2
+ *
+ */
+
+#ifndef DBX500_REGULATOR_H
+#define DBX500_REGULATOR_H
+
+#include <linux/platform_device.h>
+
+/**
+ * struct dbx500_regulator_info - dbx500 regulator information
+ * @dev: device pointer
+ * @desc: regulator description
+ * @rdev: regulator device pointer
+ * @is_enabled: status of the regulator
+ * @epod_id: id for EPOD (power domain)
+ * @is_ramret: RAM retention switch for EPOD (power domain)
+ * @operating_point: operating point (only for vape, to be removed)
+ *
+ */
+struct dbx500_regulator_info {
+ struct device *dev;
+ struct regulator_desc desc;
+ struct regulator_dev *rdev;
+ bool is_enabled;
+ u16 epod_id;
+ bool is_ramret;
+ bool exclude_from_power_state;
+ unsigned int operating_point;
+};
+
+void power_state_active_enable(void);
+int power_state_active_disable(void);
+
+
+#ifdef CONFIG_REGULATOR_DEBUG
+int ux500_regulator_debug_init(struct platform_device *pdev,
+ struct dbx500_regulator_info *regulator_info,
+ int num_regulators);
+
+int ux500_regulator_debug_exit(void);
+#else
+
+static inline int ux500_regulator_debug_init(struct platform_device *pdev,
+ struct dbx500_regulator_info *regulator_info,
+ int num_regulators)
+{
+ return 0;
+}
+
+static inline int ux500_regulator_debug_exit(void)
+{
+ return 0;
+}
+
+#endif
+#endif
diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index d26e8646277b..bb7cd9df9487 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -908,13 +908,13 @@ static struct regulator_desc regulators[] = {
},
regulator_desc_buck(7),
{
- .name = "EN32KHz AP",
+ .name = "EN32KHz_AP",
.id = MAX8997_EN32KHZ_AP,
.ops = &max8997_fixedvolt_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
- .name = "EN32KHz CP",
+ .name = "EN32KHz_CP",
.id = MAX8997_EN32KHZ_CP,
.ops = &max8997_fixedvolt_ops,
.type = REGULATOR_VOLTAGE,
@@ -938,7 +938,7 @@ static struct regulator_desc regulators[] = {
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
- .name = "CHARGER CV",
+ .name = "CHARGER_CV",
.id = MAX8997_CHARGER_CV,
.ops = &max8997_fixedstate_ops,
.type = REGULATOR_VOLTAGE,
@@ -950,7 +950,7 @@ static struct regulator_desc regulators[] = {
.type = REGULATOR_CURRENT,
.owner = THIS_MODULE,
}, {
- .name = "CHARGER TOPOFF",
+ .name = "CHARGER_TOPOFF",
.id = MAX8997_CHARGER_TOPOFF,
.ops = &max8997_charger_fixedstate_ops,
.type = REGULATOR_CURRENT,
diff --git a/drivers/regulator/mc13xxx-regulator-core.c b/drivers/regulator/mc13xxx-regulator-core.c
index 80ecafef1bc3..62dcd0a432bb 100644
--- a/drivers/regulator/mc13xxx-regulator-core.c
+++ b/drivers/regulator/mc13xxx-regulator-core.c
@@ -254,6 +254,7 @@ int __devinit mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
return num;
}
+EXPORT_SYMBOL_GPL(mc13xxx_get_num_regulators_dt);
struct mc13xxx_regulator_init_data * __devinit mc13xxx_parse_regulators_dt(
struct platform_device *pdev, struct mc13xxx_regulator *regulators,
@@ -291,6 +292,7 @@ struct mc13xxx_regulator_init_data * __devinit mc13xxx_parse_regulators_dt(
return data;
}
+EXPORT_SYMBOL_GPL(mc13xxx_parse_regulators_dt);
#endif
MODULE_LICENSE("GPL v2");
diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
new file mode 100644
index 000000000000..5b00e5ac70cd
--- /dev/null
+++ b/drivers/regulator/s5m8767.c
@@ -0,0 +1,832 @@
+/*
+ * s5m8767.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd
+ * http://www.samsung.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/bug.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/s5m87xx/s5m-core.h>
+#include <linux/mfd/s5m87xx/s5m-pmic.h>
+
+struct s5m8767_info {
+ struct device *dev;
+ struct s5m87xx_dev *iodev;
+ int num_regulators;
+ struct regulator_dev **rdev;
+
+ int ramp_delay;
+ bool buck2_ramp;
+ bool buck3_ramp;
+ bool buck4_ramp;
+
+ bool buck2_gpiodvs;
+ bool buck3_gpiodvs;
+ bool buck4_gpiodvs;
+ u8 buck2_vol[8];
+ u8 buck3_vol[8];
+ u8 buck4_vol[8];
+ int buck_gpios[3];
+ int buck_gpioindex;
+};
+
+struct s5m_voltage_desc {
+ int max;
+ int min;
+ int step;
+};
+
+static const struct s5m_voltage_desc buck_voltage_val1 = {
+ .max = 2225000,
+ .min = 650000,
+ .step = 6250,
+};
+
+static const struct s5m_voltage_desc buck_voltage_val2 = {
+ .max = 1600000,
+ .min = 600000,
+ .step = 6250,
+};
+
+static const struct s5m_voltage_desc buck_voltage_val3 = {
+ .max = 3000000,
+ .min = 750000,
+ .step = 12500,
+};
+
+static const struct s5m_voltage_desc ldo_voltage_val1 = {
+ .max = 3950000,
+ .min = 800000,
+ .step = 50000,
+};
+
+static const struct s5m_voltage_desc ldo_voltage_val2 = {
+ .max = 2375000,
+ .min = 800000,
+ .step = 25000,
+};
+
+static const struct s5m_voltage_desc *reg_voltage_map[] = {
+ [S5M8767_LDO1] = &ldo_voltage_val2,
+ [S5M8767_LDO2] = &ldo_voltage_val2,
+ [S5M8767_LDO3] = &ldo_voltage_val1,
+ [S5M8767_LDO4] = &ldo_voltage_val1,
+ [S5M8767_LDO5] = &ldo_voltage_val1,
+ [S5M8767_LDO6] = &ldo_voltage_val2,
+ [S5M8767_LDO7] = &ldo_voltage_val2,
+ [S5M8767_LDO8] = &ldo_voltage_val2,
+ [S5M8767_LDO9] = &ldo_voltage_val1,
+ [S5M8767_LDO10] = &ldo_voltage_val1,
+ [S5M8767_LDO11] = &ldo_voltage_val1,
+ [S5M8767_LDO12] = &ldo_voltage_val1,
+ [S5M8767_LDO13] = &ldo_voltage_val1,
+ [S5M8767_LDO14] = &ldo_voltage_val1,
+ [S5M8767_LDO15] = &ldo_voltage_val2,
+ [S5M8767_LDO16] = &ldo_voltage_val1,
+ [S5M8767_LDO17] = &ldo_voltage_val1,
+ [S5M8767_LDO18] = &ldo_voltage_val1,
+ [S5M8767_LDO19] = &ldo_voltage_val1,
+ [S5M8767_LDO20] = &ldo_voltage_val1,
+ [S5M8767_LDO21] = &ldo_voltage_val1,
+ [S5M8767_LDO22] = &ldo_voltage_val1,
+ [S5M8767_LDO23] = &ldo_voltage_val1,
+ [S5M8767_LDO24] = &ldo_voltage_val1,
+ [S5M8767_LDO25] = &ldo_voltage_val1,
+ [S5M8767_LDO26] = &ldo_voltage_val1,
+ [S5M8767_LDO27] = &ldo_voltage_val1,
+ [S5M8767_LDO28] = &ldo_voltage_val1,
+ [S5M8767_BUCK1] = &buck_voltage_val1,
+ [S5M8767_BUCK2] = &buck_voltage_val2,
+ [S5M8767_BUCK3] = &buck_voltage_val2,
+ [S5M8767_BUCK4] = &buck_voltage_val2,
+ [S5M8767_BUCK5] = &buck_voltage_val1,
+ [S5M8767_BUCK6] = &buck_voltage_val1,
+ [S5M8767_BUCK7] = NULL,
+ [S5M8767_BUCK8] = NULL,
+ [S5M8767_BUCK9] = &buck_voltage_val3,
+};
+
+static int s5m8767_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ const struct s5m_voltage_desc *desc;
+ int reg_id = rdev_get_id(rdev);
+ int val;
+
+ if (reg_id >= ARRAY_SIZE(reg_voltage_map) || reg_id < 0)
+ return -EINVAL;
+
+ desc = reg_voltage_map[reg_id];
+ if (desc == NULL)
+ return -EINVAL;
+
+ val = desc->min + desc->step * selector;
+ if (val > desc->max)
+ return -EINVAL;
+
+ return val;
+}
+
+static int s5m8767_get_register(struct regulator_dev *rdev, int *reg)
+{
+ int reg_id = rdev_get_id(rdev);
+
+ switch (reg_id) {
+ case S5M8767_LDO1 ... S5M8767_LDO2:
+ *reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1);
+ break;
+ case S5M8767_LDO3 ... S5M8767_LDO28:
+ *reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3);
+ break;
+ case S5M8767_BUCK1:
+ *reg = S5M8767_REG_BUCK1CTRL1;
+ break;
+ case S5M8767_BUCK2 ... S5M8767_BUCK4:
+ *reg = S5M8767_REG_BUCK2CTRL + (reg_id - S5M8767_BUCK2) * 9;
+ break;
+ case S5M8767_BUCK5:
+ *reg = S5M8767_REG_BUCK5CTRL1;
+ break;
+ case S5M8767_BUCK6 ... S5M8767_BUCK9:
+ *reg = S5M8767_REG_BUCK6CTRL1 + (reg_id - S5M8767_BUCK6) * 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int s5m8767_reg_is_enabled(struct regulator_dev *rdev)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int ret, reg;
+ int mask = 0xc0, pattern = 0xc0;
+ u8 val;
+
+ ret = s5m8767_get_register(rdev, &reg);
+ if (ret == -EINVAL)
+ return 1;
+ else if (ret)
+ return ret;
+
+ ret = s5m_reg_read(s5m8767->iodev, reg, &val);
+ if (ret)
+ return ret;
+
+ return (val & mask) == pattern;
+}
+
+static int s5m8767_reg_enable(struct regulator_dev *rdev)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int ret, reg;
+ int mask = 0xc0, pattern = 0xc0;
+
+ ret = s5m8767_get_register(rdev, &reg);
+ if (ret)
+ return ret;
+
+ return s5m_reg_update(s5m8767->iodev, reg, pattern, mask);
+}
+
+static int s5m8767_reg_disable(struct regulator_dev *rdev)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int ret, reg;
+ int mask = 0xc0, pattern = 0xc0;
+
+ ret = s5m8767_get_register(rdev, &reg);
+ if (ret)
+ return ret;
+
+ return s5m_reg_update(s5m8767->iodev, reg, ~pattern, mask);
+}
+
+static int s5m8767_get_voltage_register(struct regulator_dev *rdev, int *_reg)
+{
+ int reg_id = rdev_get_id(rdev);
+ int reg;
+
+ switch (reg_id) {
+ case S5M8767_LDO1 ... S5M8767_LDO2:
+ reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1);
+ break;
+ case S5M8767_LDO3 ... S5M8767_LDO28:
+ reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3);
+ break;
+ case S5M8767_BUCK1:
+ reg = S5M8767_REG_BUCK1CTRL2;
+ break;
+ case S5M8767_BUCK2:
+ reg = S5M8767_REG_BUCK2DVS1;
+ break;
+ case S5M8767_BUCK3:
+ reg = S5M8767_REG_BUCK3DVS1;
+ break;
+ case S5M8767_BUCK4:
+ reg = S5M8767_REG_BUCK4DVS1;
+ break;
+ case S5M8767_BUCK5:
+ reg = S5M8767_REG_BUCK5CTRL2;
+ break;
+ case S5M8767_BUCK6 ... S5M8767_BUCK9:
+ reg = S5M8767_REG_BUCK6CTRL2 + (reg_id - S5M8767_BUCK6) * 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *_reg = reg;
+
+ return 0;
+}
+
+static int s5m8767_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int reg, mask = 0xff, ret;
+ int reg_id = rdev_get_id(rdev);
+ u8 val;
+
+ ret = s5m8767_get_voltage_register(rdev, &reg);
+ if (ret)
+ return ret;
+
+ switch (reg_id) {
+ case S5M8767_LDO1 ... S5M8767_LDO28:
+ mask = 0x3f;
+ break;
+ case S5M8767_BUCK2:
+ if (s5m8767->buck2_gpiodvs)
+ reg += s5m8767->buck_gpioindex;
+ break;
+ case S5M8767_BUCK3:
+ if (s5m8767->buck3_gpiodvs)
+ reg += s5m8767->buck_gpioindex;
+ break;
+ case S5M8767_BUCK4:
+ if (s5m8767->buck4_gpiodvs)
+ reg += s5m8767->buck_gpioindex;
+ break;
+ }
+
+ ret = s5m_reg_read(s5m8767->iodev, reg, &val);
+ if (ret)
+ return ret;
+
+ val &= mask;
+
+ return val;
+}
+
+static inline int s5m8767_convert_voltage(
+ const struct s5m_voltage_desc *desc,
+ int min_vol, int max_vol)
+{
+ int out_vol = 0;
+
+ if (desc == NULL)
+ return -EINVAL;
+
+ if (max_vol < desc->min || min_vol > desc->max)
+ return -EINVAL;
+
+ out_vol = (min_vol - desc->min) / desc->step;
+
+ if (desc->min + desc->step * out_vol > max_vol)
+ return -EINVAL;
+
+ return out_vol;
+}
+
+static int s5m8767_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int min_vol = min_uV, max_vol = max_uV;
+ const struct s5m_voltage_desc *desc;
+ int reg_id = rdev_get_id(rdev);
+ int reg, mask, ret;
+ int i;
+ u8 val;
+
+ switch (reg_id) {
+ case S5M8767_LDO1 ... S5M8767_LDO28:
+ mask = 0x3f;
+ break;
+ case S5M8767_BUCK1 ... S5M8767_BUCK6:
+ mask = 0xff;
+ break;
+ case S5M8767_BUCK7 ... S5M8767_BUCK8:
+ return -EINVAL;
+ case S5M8767_BUCK9:
+ mask = 0xff;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ desc = reg_voltage_map[reg_id];
+
+ i = s5m8767_convert_voltage(desc, min_vol, max_vol);
+ if (i < 0)
+ return i;
+
+ ret = s5m8767_get_voltage_register(rdev, &reg);
+ if (ret)
+ return ret;
+
+ s5m_reg_read(s5m8767->iodev, reg, &val);
+ val = val & mask;
+
+ ret = s5m_reg_write(s5m8767->iodev, reg, val);
+ *selector = i;
+
+ return ret;
+}
+
+static inline void s5m8767_set_high(struct s5m8767_info *s5m8767)
+{
+ int temp_index = s5m8767->buck_gpioindex;
+
+ gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1);
+ gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1);
+ gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1);
+}
+
+static inline void s5m8767_set_low(struct s5m8767_info *s5m8767)
+{
+ int temp_index = s5m8767->buck_gpioindex;
+
+ gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1);
+ gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1);
+ gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1);
+}
+
+static int s5m8767_set_voltage_buck(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int reg_id = rdev_get_id(rdev);
+ const struct s5m_voltage_desc *desc;
+ int new_val, old_val, i = 0;
+ int min_vol = min_uV, max_vol = max_uV;
+
+ if (reg_id < S5M8767_BUCK1 || reg_id > S5M8767_BUCK6)
+ return -EINVAL;
+
+ switch (reg_id) {
+ case S5M8767_BUCK1:
+ return s5m8767_set_voltage(rdev, min_uV, max_uV, selector);
+ case S5M8767_BUCK2 ... S5M8767_BUCK4:
+ break;
+ case S5M8767_BUCK5 ... S5M8767_BUCK6:
+ return s5m8767_set_voltage(rdev, min_uV, max_uV, selector);
+ case S5M8767_BUCK9:
+ return s5m8767_set_voltage(rdev, min_uV, max_uV, selector);
+ }
+
+ desc = reg_voltage_map[reg_id];
+ new_val = s5m8767_convert_voltage(desc, min_vol, max_vol);
+ if (new_val < 0)
+ return new_val;
+
+ switch (reg_id) {
+ case S5M8767_BUCK2:
+ if (s5m8767->buck2_gpiodvs) {
+ while (s5m8767->buck2_vol[i] != new_val)
+ i++;
+ } else
+ return s5m8767_set_voltage(rdev, min_uV,
+ max_uV, selector);
+ break;
+ case S5M8767_BUCK3:
+ if (s5m8767->buck3_gpiodvs) {
+ while (s5m8767->buck3_vol[i] != new_val)
+ i++;
+ } else
+ return s5m8767_set_voltage(rdev, min_uV,
+ max_uV, selector);
+ break;
+ case S5M8767_BUCK4:
+ if (s5m8767->buck3_gpiodvs) {
+ while (s5m8767->buck4_vol[i] != new_val)
+ i++;
+ } else
+ return s5m8767_set_voltage(rdev, min_uV,
+ max_uV, selector);
+ break;
+ }
+
+ old_val = s5m8767->buck_gpioindex;
+ s5m8767->buck_gpioindex = i;
+
+ if (i > old_val)
+ s5m8767_set_high(s5m8767);
+ else
+ s5m8767_set_low(s5m8767);
+
+ *selector = new_val;
+ return 0;
+}
+
+static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev,
+ unsigned int old_sel,
+ unsigned int new_sel)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ const struct s5m_voltage_desc *desc;
+ int reg_id = rdev_get_id(rdev);
+ int mask;
+ int new_val, old_val;
+
+ switch (reg_id) {
+ case S5M8767_LDO1 ... S5M8767_LDO28:
+ mask = 0x3f;
+ break;
+ case S5M8767_BUCK1 ... S5M8767_BUCK6:
+ mask = 0xff;
+ break;
+ case S5M8767_BUCK7 ... S5M8767_BUCK8:
+ return -EINVAL;
+ case S5M8767_BUCK9:
+ mask = 0xff;
+ break;
+ default:
+ return -EINVAL;
+ }
+ desc = reg_voltage_map[reg_id];
+
+ new_val = s5m8767_convert_voltage(desc, new_sel, new_sel);
+ if (new_val < 0)
+ return new_val;
+
+ old_val = s5m8767_convert_voltage(desc, old_sel, old_sel);
+ if (old_val < 0)
+ return old_val;
+
+ if (old_sel < new_sel)
+ return DIV_ROUND_UP(desc->step * (new_val - old_val),
+ s5m8767->ramp_delay);
+ else
+ return 0;
+}
+
+static struct regulator_ops s5m8767_ldo_ops = {
+ .list_voltage = s5m8767_list_voltage,
+ .is_enabled = s5m8767_reg_is_enabled,
+ .enable = s5m8767_reg_enable,
+ .disable = s5m8767_reg_disable,
+ .get_voltage_sel = s5m8767_get_voltage_sel,
+ .set_voltage = s5m8767_set_voltage,
+ .set_voltage_time_sel = s5m8767_set_voltage_time_sel,
+};
+
+static struct regulator_ops s5m8767_buck_ops = {
+ .list_voltage = s5m8767_list_voltage,
+ .is_enabled = s5m8767_reg_is_enabled,
+ .enable = s5m8767_reg_enable,
+ .disable = s5m8767_reg_disable,
+ .get_voltage_sel = s5m8767_get_voltage_sel,
+ .set_voltage = s5m8767_set_voltage_buck,
+ .set_voltage_time_sel = s5m8767_set_voltage_time_sel,
+};
+
+#define regulator_desc_ldo(num) { \
+ .name = "LDO"#num, \
+ .id = S5M8767_LDO##num, \
+ .ops = &s5m8767_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+}
+#define regulator_desc_buck(num) { \
+ .name = "BUCK"#num, \
+ .id = S5M8767_BUCK##num, \
+ .ops = &s5m8767_buck_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+}
+
+static struct regulator_desc regulators[] = {
+ regulator_desc_ldo(1),
+ regulator_desc_ldo(2),
+ regulator_desc_ldo(3),
+ regulator_desc_ldo(4),
+ regulator_desc_ldo(5),
+ regulator_desc_ldo(6),
+ regulator_desc_ldo(7),
+ regulator_desc_ldo(8),
+ regulator_desc_ldo(9),
+ regulator_desc_ldo(10),
+ regulator_desc_ldo(11),
+ regulator_desc_ldo(12),
+ regulator_desc_ldo(13),
+ regulator_desc_ldo(14),
+ regulator_desc_ldo(15),
+ regulator_desc_ldo(16),
+ regulator_desc_ldo(17),
+ regulator_desc_ldo(18),
+ regulator_desc_ldo(19),
+ regulator_desc_ldo(20),
+ regulator_desc_ldo(21),
+ regulator_desc_ldo(22),
+ regulator_desc_ldo(23),
+ regulator_desc_ldo(24),
+ regulator_desc_ldo(25),
+ regulator_desc_ldo(26),
+ regulator_desc_ldo(27),
+ regulator_desc_ldo(28),
+ regulator_desc_buck(1),
+ regulator_desc_buck(2),
+ regulator_desc_buck(3),
+ regulator_desc_buck(4),
+ regulator_desc_buck(5),
+ regulator_desc_buck(6),
+ regulator_desc_buck(7),
+ regulator_desc_buck(8),
+ regulator_desc_buck(9),
+};
+
+static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
+{
+ struct s5m87xx_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+ struct s5m_platform_data *pdata = dev_get_platdata(iodev->dev);
+ struct regulator_dev **rdev;
+ struct s5m8767_info *s5m8767;
+ struct i2c_client *i2c;
+ int i, ret, size, reg;
+
+ if (!pdata) {
+ dev_err(pdev->dev.parent, "Platform data not supplied\n");
+ return -ENODEV;
+ }
+
+ s5m8767 = devm_kzalloc(&pdev->dev, sizeof(struct s5m8767_info),
+ GFP_KERNEL);
+ if (!s5m8767)
+ return -ENOMEM;
+
+ size = sizeof(struct regulator_dev *) * (S5M8767_REG_MAX - 2);
+ s5m8767->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
+ if (!s5m8767->rdev)
+ return -ENOMEM;
+
+ rdev = s5m8767->rdev;
+ s5m8767->dev = &pdev->dev;
+ s5m8767->iodev = iodev;
+ s5m8767->num_regulators = S5M8767_REG_MAX - 2;
+ platform_set_drvdata(pdev, s5m8767);
+ i2c = s5m8767->iodev->i2c;
+
+ s5m8767->buck_gpioindex = pdata->buck_default_idx;
+ s5m8767->buck2_gpiodvs = pdata->buck2_gpiodvs;
+ s5m8767->buck3_gpiodvs = pdata->buck3_gpiodvs;
+ s5m8767->buck4_gpiodvs = pdata->buck4_gpiodvs;
+ s5m8767->buck_gpios[0] = pdata->buck_gpios[0];
+ s5m8767->buck_gpios[1] = pdata->buck_gpios[1];
+ s5m8767->buck_gpios[2] = pdata->buck_gpios[2];
+ s5m8767->ramp_delay = pdata->buck_ramp_delay;
+ s5m8767->buck2_ramp = pdata->buck2_ramp_enable;
+ s5m8767->buck3_ramp = pdata->buck3_ramp_enable;
+ s5m8767->buck4_ramp = pdata->buck4_ramp_enable;
+
+ for (i = 0; i < 8; i++) {
+ if (s5m8767->buck2_gpiodvs) {
+ s5m8767->buck2_vol[i] =
+ s5m8767_convert_voltage(
+ &buck_voltage_val2,
+ pdata->buck2_voltage[i],
+ pdata->buck2_voltage[i] +
+ buck_voltage_val2.step);
+ }
+
+ if (s5m8767->buck3_gpiodvs) {
+ s5m8767->buck3_vol[i] =
+ s5m8767_convert_voltage(
+ &buck_voltage_val2,
+ pdata->buck3_voltage[i],
+ pdata->buck3_voltage[i] +
+ buck_voltage_val2.step);
+ }
+
+ if (s5m8767->buck4_gpiodvs) {
+ s5m8767->buck4_vol[i] =
+ s5m8767_convert_voltage(
+ &buck_voltage_val2,
+ pdata->buck4_voltage[i],
+ pdata->buck4_voltage[i] +
+ buck_voltage_val2.step);
+ }
+ }
+
+ if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
+ pdata->buck4_gpiodvs) {
+ if (gpio_is_valid(pdata->buck_gpios[0]) &&
+ gpio_is_valid(pdata->buck_gpios[1]) &&
+ gpio_is_valid(pdata->buck_gpios[2])) {
+ ret = gpio_request(pdata->buck_gpios[0],
+ "S5M8767 SET1");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request for SET1\n");
+
+ ret = gpio_request(pdata->buck_gpios[1],
+ "S5M8767 SET2");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request for SET2\n");
+
+ ret = gpio_request(pdata->buck_gpios[2],
+ "S5M8767 SET3");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request for SET3\n");
+ /* SET1 GPIO */
+ gpio_direction_output(pdata->buck_gpios[0],
+ (s5m8767->buck_gpioindex >> 2) & 0x1);
+ /* SET2 GPIO */
+ gpio_direction_output(pdata->buck_gpios[1],
+ (s5m8767->buck_gpioindex >> 1) & 0x1);
+ /* SET3 GPIO */
+ gpio_direction_output(pdata->buck_gpios[2],
+ (s5m8767->buck_gpioindex >> 0) & 0x1);
+ ret = 0;
+ } else {
+ dev_err(&pdev->dev, "GPIO NOT VALID\n");
+ ret = -EINVAL;
+ return ret;
+ }
+ }
+
+ if (pdata->buck2_gpiodvs) {
+ if (pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) {
+ dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+ ret = -EINVAL;
+ return ret;
+ }
+ }
+
+ if (pdata->buck3_gpiodvs) {
+ if (pdata->buck2_gpiodvs || pdata->buck4_gpiodvs) {
+ dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+ ret = -EINVAL;
+ return ret;
+ }
+ }
+
+ if (pdata->buck4_gpiodvs) {
+ if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs) {
+ dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+ ret = -EINVAL;
+ return ret;
+ }
+ }
+
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL,
+ (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL,
+ (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL,
+ (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
+
+ /* Initialize GPIO DVS registers */
+ for (i = 0; i < 8; i++) {
+ if (s5m8767->buck2_gpiodvs) {
+ s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK2DVS1 + i,
+ s5m8767->buck2_vol[i]);
+ }
+
+ if (s5m8767->buck3_gpiodvs) {
+ s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK3DVS1 + i,
+ s5m8767->buck3_vol[i]);
+ }
+
+ if (s5m8767->buck4_gpiodvs) {
+ s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK4DVS1 + i,
+ s5m8767->buck4_vol[i]);
+ }
+ }
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL, 0x78, 0xff);
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL, 0x58, 0xff);
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL, 0x78, 0xff);
+
+ if (s5m8767->buck2_ramp)
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x08, 0x08);
+
+ if (s5m8767->buck3_ramp)
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x04, 0x04);
+
+ if (s5m8767->buck4_ramp)
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x02, 0x02);
+
+ if (s5m8767->buck2_ramp || s5m8767->buck3_ramp
+ || s5m8767->buck4_ramp) {
+ switch (s5m8767->ramp_delay) {
+ case 15:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0xc0, 0xf0);
+ break;
+ case 25:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0xd0, 0xf0);
+ break;
+ case 50:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0xe0, 0xf0);
+ break;
+ case 100:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0xf0, 0xf0);
+ break;
+ default:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0x90, 0xf0);
+ }
+ }
+
+ for (i = 0; i < pdata->num_regulators; i++) {
+ const struct s5m_voltage_desc *desc;
+ int id = pdata->regulators[i].id;
+
+ desc = reg_voltage_map[id];
+ if (desc)
+ regulators[id].n_voltages =
+ (desc->max - desc->min) / desc->step + 1;
+
+ rdev[i] = regulator_register(&regulators[id], s5m8767->dev,
+ pdata->regulators[i].initdata, s5m8767, NULL);
+ if (IS_ERR(rdev[i])) {
+ ret = PTR_ERR(rdev[i]);
+ dev_err(s5m8767->dev, "regulator init failed for %d\n",
+ id);
+ rdev[i] = NULL;
+ goto err;
+ }
+ }
+
+ return 0;
+err:
+ for (i = 0; i < s5m8767->num_regulators; i++)
+ if (rdev[i])
+ regulator_unregister(rdev[i]);
+
+ return ret;
+}
+
+static int __devexit s5m8767_pmic_remove(struct platform_device *pdev)
+{
+ struct s5m8767_info *s5m8767 = platform_get_drvdata(pdev);
+ struct regulator_dev **rdev = s5m8767->rdev;
+ int i;
+
+ for (i = 0; i < s5m8767->num_regulators; i++)
+ if (rdev[i])
+ regulator_unregister(rdev[i]);
+
+ return 0;
+}
+
+static const struct platform_device_id s5m8767_pmic_id[] = {
+ { "s5m8767-pmic", 0},
+ { },
+};
+MODULE_DEVICE_TABLE(platform, s5m8767_pmic_id);
+
+static struct platform_driver s5m8767_pmic_driver = {
+ .driver = {
+ .name = "s5m8767-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = s5m8767_pmic_probe,
+ .remove = __devexit_p(s5m8767_pmic_remove),
+ .id_table = s5m8767_pmic_id,
+};
+
+static int __init s5m8767_pmic_init(void)
+{
+ return platform_driver_register(&s5m8767_pmic_driver);
+}
+subsys_initcall(s5m8767_pmic_init);
+
+static void __exit s5m8767_pmic_exit(void)
+{
+ platform_driver_unregister(&s5m8767_pmic_driver);
+}
+module_exit(s5m8767_pmic_exit);
+
+/* Module information */
+MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
+MODULE_DESCRIPTION("SAMSUNG S5M8767 Regulator Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c
new file mode 100644
index 000000000000..f778ef067696
--- /dev/null
+++ b/drivers/regulator/tps62360-regulator.c
@@ -0,0 +1,472 @@
+/*
+ * tps62360.c -- TI tps62360
+ *
+ * Driver for processor core supply tps62360 and tps62361B
+ *
+ * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/tps62360.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+
+/* Register definitions */
+#define REG_VSET0 0
+#define REG_VSET1 1
+#define REG_VSET2 2
+#define REG_VSET3 3
+#define REG_CONTROL 4
+#define REG_TEMP 5
+#define REG_RAMPCTRL 6
+#define REG_CHIPID 8
+
+enum chips {TPS62360, TPS62361};
+
+#define TPS62360_BASE_VOLTAGE 770
+#define TPS62360_N_VOLTAGES 64
+
+#define TPS62361_BASE_VOLTAGE 500
+#define TPS62361_N_VOLTAGES 128
+
+/* tps 62360 chip information */
+struct tps62360_chip {
+ const char *name;
+ struct device *dev;
+ struct regulator_desc desc;
+ struct i2c_client *client;
+ struct regulator_dev *rdev;
+ struct regmap *regmap;
+ int chip_id;
+ int vsel0_gpio;
+ int vsel1_gpio;
+ int voltage_base;
+ u8 voltage_reg_mask;
+ bool en_internal_pulldn;
+ bool en_force_pwm;
+ bool en_discharge;
+ bool valid_gpios;
+ int lru_index[4];
+ int curr_vset_vsel[4];
+ int curr_vset_id;
+};
+
+/*
+ * find_voltage_set_register: Find new voltage configuration register
+ * (VSET) id.
+ * The finding of the new VSET register will be based on the LRU mechanism.
+ * Each VSET register will have different voltage configured . This
+ * Function will look if any of the VSET register have requested voltage set
+ * or not.
+ * - If it is already there then it will make that register as most
+ * recently used and return as found so that caller need not to set
+ * the VSET register but need to set the proper gpios to select this
+ * VSET register.
+ * - If requested voltage is not found then it will use the least
+ * recently mechanism to get new VSET register for new configuration
+ * and will return not_found so that caller need to set new VSET
+ * register and then gpios (both).
+ */
+static bool find_voltage_set_register(struct tps62360_chip *tps,
+ int req_vsel, int *vset_reg_id)
+{
+ int i;
+ bool found = false;
+ int new_vset_reg = tps->lru_index[3];
+ int found_index = 3;
+ for (i = 0; i < 4; ++i) {
+ if (tps->curr_vset_vsel[tps->lru_index[i]] == req_vsel) {
+ new_vset_reg = tps->lru_index[i];
+ found_index = i;
+ found = true;
+ goto update_lru_index;
+ }
+ }
+
+update_lru_index:
+ for (i = found_index; i > 0; i--)
+ tps->lru_index[i] = tps->lru_index[i - 1];
+
+ tps->lru_index[0] = new_vset_reg;
+ *vset_reg_id = new_vset_reg;
+ return found;
+}
+
+static int tps62360_dcdc_get_voltage(struct regulator_dev *dev)
+{
+ struct tps62360_chip *tps = rdev_get_drvdata(dev);
+ int vsel;
+ unsigned int data;
+ int ret;
+
+ ret = regmap_read(tps->regmap, REG_VSET0 + tps->curr_vset_id, &data);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s: Error in reading register %d\n",
+ __func__, REG_VSET0 + tps->curr_vset_id);
+ return ret;
+ }
+ vsel = (int)data & tps->voltage_reg_mask;
+ return (tps->voltage_base + vsel * 10) * 1000;
+}
+
+static int tps62360_dcdc_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct tps62360_chip *tps = rdev_get_drvdata(dev);
+ int vsel;
+ int ret;
+ bool found = false;
+ int new_vset_id = tps->curr_vset_id;
+
+ if (max_uV < min_uV)
+ return -EINVAL;
+
+ if (min_uV >
+ ((tps->voltage_base + (tps->desc.n_voltages - 1) * 10) * 1000))
+ return -EINVAL;
+
+ if (max_uV < tps->voltage_base * 1000)
+ return -EINVAL;
+
+ vsel = DIV_ROUND_UP(min_uV - (tps->voltage_base * 1000), 10000);
+ if (selector)
+ *selector = (vsel & tps->voltage_reg_mask);
+
+ /*
+ * If gpios are available to select the VSET register then least
+ * recently used register for new configuration.
+ */
+ if (tps->valid_gpios)
+ found = find_voltage_set_register(tps, vsel, &new_vset_id);
+
+ if (!found) {
+ ret = regmap_update_bits(tps->regmap, REG_VSET0 + new_vset_id,
+ tps->voltage_reg_mask, vsel);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s: Error in updating register %d\n",
+ __func__, REG_VSET0 + new_vset_id);
+ return ret;
+ }
+ tps->curr_vset_id = new_vset_id;
+ tps->curr_vset_vsel[new_vset_id] = vsel;
+ }
+
+ /* Select proper VSET register vio gpios */
+ if (tps->valid_gpios) {
+ gpio_set_value_cansleep(tps->vsel0_gpio,
+ new_vset_id & 0x1);
+ gpio_set_value_cansleep(tps->vsel1_gpio,
+ (new_vset_id >> 1) & 0x1);
+ }
+ return 0;
+}
+
+static int tps62360_dcdc_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps62360_chip *tps = rdev_get_drvdata(dev);
+
+ if ((selector < 0) || (selector >= tps->desc.n_voltages))
+ return -EINVAL;
+ return (tps->voltage_base + selector * 10) * 1000;
+}
+
+static struct regulator_ops tps62360_dcdc_ops = {
+ .get_voltage = tps62360_dcdc_get_voltage,
+ .set_voltage = tps62360_dcdc_set_voltage,
+ .list_voltage = tps62360_dcdc_list_voltage,
+};
+
+static int tps62360_init_force_pwm(struct tps62360_chip *tps,
+ struct tps62360_regulator_platform_data *pdata,
+ int vset_id)
+{
+ unsigned int data;
+ int ret;
+ ret = regmap_read(tps->regmap, REG_VSET0 + vset_id, &data);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s() fails in writing reg %d\n",
+ __func__, REG_VSET0 + vset_id);
+ return ret;
+ }
+ tps->curr_vset_vsel[vset_id] = data & tps->voltage_reg_mask;
+ if (pdata->en_force_pwm)
+ data |= BIT(7);
+ else
+ data &= ~BIT(7);
+ ret = regmap_write(tps->regmap, REG_VSET0 + vset_id, data);
+ if (ret < 0)
+ dev_err(tps->dev, "%s() fails in writing reg %d\n",
+ __func__, REG_VSET0 + vset_id);
+ return ret;
+}
+
+static int tps62360_init_dcdc(struct tps62360_chip *tps,
+ struct tps62360_regulator_platform_data *pdata)
+{
+ int ret;
+ int i;
+
+ /* Initailize internal pull up/down control */
+ if (tps->en_internal_pulldn)
+ ret = regmap_write(tps->regmap, REG_CONTROL, 0xE0);
+ else
+ ret = regmap_write(tps->regmap, REG_CONTROL, 0x0);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s() fails in writing reg %d\n",
+ __func__, REG_CONTROL);
+ return ret;
+ }
+
+ /* Initailize force PWM mode */
+ if (tps->valid_gpios) {
+ for (i = 0; i < 4; ++i) {
+ ret = tps62360_init_force_pwm(tps, pdata, i);
+ if (ret < 0)
+ return ret;
+ }
+ } else {
+ ret = tps62360_init_force_pwm(tps, pdata, tps->curr_vset_id);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* Reset output discharge path to reduce power consumption */
+ ret = regmap_update_bits(tps->regmap, REG_RAMPCTRL, BIT(2), 0);
+ if (ret < 0)
+ dev_err(tps->dev, "%s() fails in updating reg %d\n",
+ __func__, REG_RAMPCTRL);
+ return ret;
+}
+
+static const struct regmap_config tps62360_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int __devinit tps62360_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tps62360_regulator_platform_data *pdata;
+ struct regulator_dev *rdev;
+ struct tps62360_chip *tps;
+ int ret;
+ int i;
+
+ pdata = client->dev.platform_data;
+ if (!pdata) {
+ dev_err(&client->dev, "%s() Err: Platform data not found\n",
+ __func__);
+ return -EIO;
+ }
+
+ tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
+ if (!tps) {
+ dev_err(&client->dev, "%s() Err: Memory allocation fails\n",
+ __func__);
+ return -ENOMEM;
+ }
+
+ tps->en_force_pwm = pdata->en_force_pwm;
+ tps->en_discharge = pdata->en_discharge;
+ tps->en_internal_pulldn = pdata->en_internal_pulldn;
+ tps->vsel0_gpio = pdata->vsel0_gpio;
+ tps->vsel1_gpio = pdata->vsel1_gpio;
+ tps->client = client;
+ tps->dev = &client->dev;
+ tps->name = id->name;
+ tps->voltage_base = (id->driver_data == TPS62360) ?
+ TPS62360_BASE_VOLTAGE : TPS62361_BASE_VOLTAGE;
+ tps->voltage_reg_mask = (id->driver_data == TPS62360) ? 0x3F : 0x7F;
+
+ tps->desc.name = id->name;
+ tps->desc.id = 0;
+ tps->desc.n_voltages = (id->driver_data == TPS62360) ?
+ TPS62360_N_VOLTAGES : TPS62361_N_VOLTAGES;
+ tps->desc.ops = &tps62360_dcdc_ops;
+ tps->desc.type = REGULATOR_VOLTAGE;
+ tps->desc.owner = THIS_MODULE;
+ tps->regmap = regmap_init_i2c(client, &tps62360_regmap_config);
+ if (IS_ERR(tps->regmap)) {
+ ret = PTR_ERR(tps->regmap);
+ dev_err(&client->dev, "%s() Err: Failed to allocate register"
+ "map: %d\n", __func__, ret);
+ return ret;
+ }
+ i2c_set_clientdata(client, tps);
+
+ tps->curr_vset_id = (pdata->vsel1_def_state & 1) * 2 +
+ (pdata->vsel0_def_state & 1);
+ tps->lru_index[0] = tps->curr_vset_id;
+ tps->valid_gpios = false;
+
+ if (gpio_is_valid(tps->vsel0_gpio) && gpio_is_valid(tps->vsel1_gpio)) {
+ ret = gpio_request(tps->vsel0_gpio, "tps62360-vsel0");
+ if (ret) {
+ dev_err(&client->dev,
+ "Err: Could not obtain vsel0 GPIO %d: %d\n",
+ tps->vsel0_gpio, ret);
+ goto err_gpio0;
+ }
+ ret = gpio_direction_output(tps->vsel0_gpio,
+ pdata->vsel0_def_state);
+ if (ret) {
+ dev_err(&client->dev, "Err: Could not set direction of"
+ "vsel0 GPIO %d: %d\n", tps->vsel0_gpio, ret);
+ gpio_free(tps->vsel0_gpio);
+ goto err_gpio0;
+ }
+
+ ret = gpio_request(tps->vsel1_gpio, "tps62360-vsel1");
+ if (ret) {
+ dev_err(&client->dev,
+ "Err: Could not obtain vsel1 GPIO %d: %d\n",
+ tps->vsel1_gpio, ret);
+ goto err_gpio1;
+ }
+ ret = gpio_direction_output(tps->vsel1_gpio,
+ pdata->vsel1_def_state);
+ if (ret) {
+ dev_err(&client->dev, "Err: Could not set direction of"
+ "vsel1 GPIO %d: %d\n", tps->vsel1_gpio, ret);
+ gpio_free(tps->vsel1_gpio);
+ goto err_gpio1;
+ }
+ tps->valid_gpios = true;
+
+ /*
+ * Initialize the lru index with vset_reg id
+ * The index 0 will be most recently used and
+ * set with the tps->curr_vset_id */
+ for (i = 0; i < 4; ++i)
+ tps->lru_index[i] = i;
+ tps->lru_index[0] = tps->curr_vset_id;
+ tps->lru_index[tps->curr_vset_id] = 0;
+ }
+
+ ret = tps62360_init_dcdc(tps, pdata);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s() Err: Init fails with = %d\n",
+ __func__, ret);
+ goto err_init;
+ }
+
+ /* Register the regulators */
+ rdev = regulator_register(&tps->desc, &client->dev,
+ &pdata->reg_init_data, tps, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(tps->dev, "%s() Err: Failed to register %s\n",
+ __func__, id->name);
+ ret = PTR_ERR(rdev);
+ goto err_init;
+ }
+
+ tps->rdev = rdev;
+ return 0;
+
+err_init:
+ if (gpio_is_valid(tps->vsel1_gpio))
+ gpio_free(tps->vsel1_gpio);
+err_gpio1:
+ if (gpio_is_valid(tps->vsel0_gpio))
+ gpio_free(tps->vsel0_gpio);
+err_gpio0:
+ regmap_exit(tps->regmap);
+ return ret;
+}
+
+/**
+ * tps62360_remove - tps62360 driver i2c remove handler
+ * @client: i2c driver client device structure
+ *
+ * Unregister TPS driver as an i2c client device driver
+ */
+static int __devexit tps62360_remove(struct i2c_client *client)
+{
+ struct tps62360_chip *tps = i2c_get_clientdata(client);
+
+ if (gpio_is_valid(tps->vsel1_gpio))
+ gpio_free(tps->vsel1_gpio);
+
+ if (gpio_is_valid(tps->vsel0_gpio))
+ gpio_free(tps->vsel0_gpio);
+
+ regulator_unregister(tps->rdev);
+ regmap_exit(tps->regmap);
+ return 0;
+}
+
+static void tps62360_shutdown(struct i2c_client *client)
+{
+ struct tps62360_chip *tps = i2c_get_clientdata(client);
+ int st;
+
+ if (!tps->en_discharge)
+ return;
+
+ /* Configure the output discharge path */
+ st = regmap_update_bits(tps->regmap, REG_RAMPCTRL, BIT(2), BIT(2));
+ if (st < 0)
+ dev_err(tps->dev, "%s() fails in updating reg %d\n",
+ __func__, REG_RAMPCTRL);
+}
+
+static const struct i2c_device_id tps62360_id[] = {
+ {.name = "tps62360", .driver_data = TPS62360},
+ {.name = "tps62361", .driver_data = TPS62361},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, tps62360_id);
+
+static struct i2c_driver tps62360_i2c_driver = {
+ .driver = {
+ .name = "tps62360",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps62360_probe,
+ .remove = __devexit_p(tps62360_remove),
+ .shutdown = tps62360_shutdown,
+ .id_table = tps62360_id,
+};
+
+static int __init tps62360_init(void)
+{
+ return i2c_add_driver(&tps62360_i2c_driver);
+}
+subsys_initcall(tps62360_init);
+
+static void __exit tps62360_cleanup(void)
+{
+ i2c_del_driver(&tps62360_i2c_driver);
+}
+module_exit(tps62360_cleanup);
+
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_DESCRIPTION("TPS62360 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c
new file mode 100644
index 000000000000..28a10eaeda17
--- /dev/null
+++ b/drivers/regulator/tps65217-regulator.c
@@ -0,0 +1,493 @@
+/*
+ * tps65217-regulator.c
+ *
+ * Regulator driver for TPS65217 PMIC
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/tps65217.h>
+
+#define TPS65217_REGULATOR(_name, _id, _ops, _n) \
+ { \
+ .name = _name, \
+ .id = _id, \
+ .ops = &_ops, \
+ .n_voltages = _n, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ } \
+
+#define TPS65217_INFO(_nm, _min, _max, _f1, _f2, _t, _n, _em, _vr, _vm) \
+ { \
+ .name = _nm, \
+ .min_uV = _min, \
+ .max_uV = _max, \
+ .vsel_to_uv = _f1, \
+ .uv_to_vsel = _f2, \
+ .table = _t, \
+ .table_len = _n, \
+ .enable_mask = _em, \
+ .set_vout_reg = _vr, \
+ .set_vout_mask = _vm, \
+ }
+
+static const int LDO1_VSEL_table[] = {
+ 1000000, 1100000, 1200000, 1250000,
+ 1300000, 1350000, 1400000, 1500000,
+ 1600000, 1800000, 2500000, 2750000,
+ 2800000, 3000000, 3100000, 3300000,
+};
+
+static int tps65217_vsel_to_uv1(unsigned int vsel)
+{
+ int uV = 0;
+
+ if (vsel > 63)
+ return -EINVAL;
+
+ if (vsel <= 24)
+ uV = vsel * 25000 + 900000;
+ else if (vsel <= 52)
+ uV = (vsel - 24) * 50000 + 1500000;
+ else if (vsel < 56)
+ uV = (vsel - 52) * 100000 + 2900000;
+ else
+ uV = 3300000;
+
+ return uV;
+}
+
+static int tps65217_uv_to_vsel1(int uV, unsigned int *vsel)
+{
+ if ((uV < 0) && (uV > 3300000))
+ return -EINVAL;
+
+ if (uV <= 1500000)
+ *vsel = (uV - 875001) / 25000;
+ else if (uV <= 2900000)
+ *vsel = 24 + (uV - 1450001) / 50000;
+ else if (uV < 3300000)
+ *vsel = 52 + (uV - 2800001) / 100000;
+ else
+ *vsel = 56;
+
+ return 0;
+}
+
+static int tps65217_vsel_to_uv2(unsigned int vsel)
+{
+ int uV = 0;
+
+ if (vsel > 31)
+ return -EINVAL;
+
+ if (vsel <= 8)
+ uV = vsel * 50000 + 1500000;
+ else if (vsel <= 13)
+ uV = (vsel - 8) * 100000 + 1900000;
+ else
+ uV = (vsel - 13) * 50000 + 2400000;
+
+ return uV;
+}
+
+static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel)
+{
+ if ((uV < 0) && (uV > 3300000))
+ return -EINVAL;
+
+ if (uV <= 1900000)
+ *vsel = (uV - 1450001) / 50000;
+ else if (uV <= 2400000)
+ *vsel = 8 + (uV - 1800001) / 100000;
+ else
+ *vsel = 13 + (uV - 2350001) / 50000;
+
+ return 0;
+}
+
+static struct tps_info tps65217_pmic_regs[] = {
+ TPS65217_INFO("DCDC1", 900000, 1800000, tps65217_vsel_to_uv1,
+ tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC1_EN,
+ TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK),
+ TPS65217_INFO("DCDC2", 900000, 3300000, tps65217_vsel_to_uv1,
+ tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC2_EN,
+ TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK),
+ TPS65217_INFO("DCDC3", 900000, 1500000, tps65217_vsel_to_uv1,
+ tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC3_EN,
+ TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK),
+ TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL, LDO1_VSEL_table,
+ 16, TPS65217_ENABLE_LDO1_EN, TPS65217_REG_DEFLDO1,
+ TPS65217_DEFLDO1_LDO1_MASK),
+ TPS65217_INFO("LDO2", 900000, 3300000, tps65217_vsel_to_uv1,
+ tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_LDO2_EN,
+ TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK),
+ TPS65217_INFO("LDO3", 1800000, 3300000, tps65217_vsel_to_uv2,
+ tps65217_uv_to_vsel2, NULL, 32,
+ TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN,
+ TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK),
+ TPS65217_INFO("LDO4", 1800000, 3300000, tps65217_vsel_to_uv2,
+ tps65217_uv_to_vsel2, NULL, 32,
+ TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN,
+ TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK),
+};
+
+static int tps65217_pmic_dcdc_is_enabled(struct regulator_dev *dev)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int data, dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ return -EINVAL;
+
+ ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
+ if (ret)
+ return ret;
+
+ return (data & tps->info[dcdc]->enable_mask) ? 1 : 0;
+}
+
+static int tps65217_pmic_ldo_is_enabled(struct regulator_dev *dev)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int data, ldo = rdev_get_id(dev);
+
+ if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
+ return -EINVAL;
+
+ ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
+ if (ret)
+ return ret;
+
+ return (data & tps->info[ldo]->enable_mask) ? 1 : 0;
+}
+
+static int tps65217_pmic_dcdc_enable(struct regulator_dev *dev)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ return -EINVAL;
+
+ /* Enable the regulator and password protection is level 1 */
+ return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
+ tps->info[dcdc]->enable_mask,
+ tps->info[dcdc]->enable_mask,
+ TPS65217_PROTECT_L1);
+}
+
+static int tps65217_pmic_dcdc_disable(struct regulator_dev *dev)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ return -EINVAL;
+
+ /* Disable the regulator and password protection is level 1 */
+ return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
+ tps->info[dcdc]->enable_mask, TPS65217_PROTECT_L1);
+}
+
+static int tps65217_pmic_ldo_enable(struct regulator_dev *dev)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int ldo = rdev_get_id(dev);
+
+ if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
+ return -EINVAL;
+
+ /* Enable the regulator and password protection is level 1 */
+ return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
+ tps->info[ldo]->enable_mask,
+ tps->info[ldo]->enable_mask,
+ TPS65217_PROTECT_L1);
+}
+
+static int tps65217_pmic_ldo_disable(struct regulator_dev *dev)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int ldo = rdev_get_id(dev);
+
+ if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
+ return -EINVAL;
+
+ /* Disable the regulator and password protection is level 1 */
+ return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
+ tps->info[ldo]->enable_mask, TPS65217_PROTECT_L1);
+}
+
+static int tps65217_pmic_dcdc_get_voltage_sel(struct regulator_dev *dev)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int selector, dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ return -EINVAL;
+
+ ret = tps65217_reg_read(tps, tps->info[dcdc]->set_vout_reg, &selector);
+ if (ret)
+ return ret;
+
+ selector &= tps->info[dcdc]->set_vout_mask;
+
+ return selector;
+}
+
+static int tps65217_pmic_dcdc_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ return -EINVAL;
+
+ if (min_uV < tps->info[dcdc]->min_uV
+ || min_uV > tps->info[dcdc]->max_uV)
+ return -EINVAL;
+
+ if (max_uV < tps->info[dcdc]->min_uV
+ || max_uV > tps->info[dcdc]->max_uV)
+ return -EINVAL;
+
+ ret = tps->info[dcdc]->uv_to_vsel(min_uV, selector);
+ if (ret)
+ return ret;
+
+ /* Set the voltage based on vsel value and write protect level is 2 */
+ ret = tps65217_set_bits(tps, tps->info[dcdc]->set_vout_reg,
+ tps->info[dcdc]->set_vout_mask,
+ *selector, TPS65217_PROTECT_L2);
+ if (ret)
+ return ret;
+
+ /* Set GO bit to initiate voltage transistion */
+ return tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
+ TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
+ TPS65217_PROTECT_L2);
+}
+
+static int tps65217_pmic_ldo_get_voltage_sel(struct regulator_dev *dev)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int selector, ldo = rdev_get_id(dev);
+
+ if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
+ return -EINVAL;
+
+ ret = tps65217_reg_read(tps, tps->info[ldo]->set_vout_reg, &selector);
+ if (ret)
+ return ret;
+
+ selector &= tps->info[ldo]->set_vout_mask;
+
+ return selector;
+}
+
+static int tps65217_pmic_ldo_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev);
+
+ if (ldo != TPS65217_LDO_1)
+ return -EINVAL;
+
+ if (selector >= tps->info[ldo]->table_len)
+ return -EINVAL;
+
+ /* Set the voltage based on vsel value and write protect level is 2 */
+ return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
+ tps->info[ldo]->set_vout_mask,
+ selector, TPS65217_PROTECT_L2);
+}
+
+static int tps65217_pmic_ldo_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int ldo = rdev_get_id(dev);
+
+ if (ldo < TPS65217_LDO_2 || ldo > TPS65217_LDO_4)
+ return -EINVAL;
+
+ if (min_uV < tps->info[ldo]->min_uV
+ || min_uV > tps->info[ldo]->max_uV)
+ return -EINVAL;
+
+ if (max_uV < tps->info[ldo]->min_uV
+ || max_uV > tps->info[ldo]->max_uV)
+ return -EINVAL;
+
+ ret = tps->info[ldo]->uv_to_vsel(min_uV, selector);
+ if (ret)
+ return ret;
+
+ /* Set the voltage based on vsel value and write protect level is 2 */
+ return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
+ tps->info[ldo]->set_vout_mask,
+ *selector, TPS65217_PROTECT_L2);
+}
+
+static int tps65217_pmic_dcdc_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
+ return -EINVAL;
+
+ if (selector >= tps->info[dcdc]->table_len)
+ return -EINVAL;
+
+ return tps->info[dcdc]->vsel_to_uv(selector);
+}
+
+static int tps65217_pmic_ldo_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int ldo = rdev_get_id(dev);
+
+ if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
+ return -EINVAL;
+
+ if (selector >= tps->info[ldo]->table_len)
+ return -EINVAL;
+
+ if (tps->info[ldo]->table)
+ return tps->info[ldo]->table[selector];
+
+ return tps->info[ldo]->vsel_to_uv(selector);
+}
+
+/* Operations permitted on DCDCx */
+static struct regulator_ops tps65217_pmic_dcdc_ops = {
+ .is_enabled = tps65217_pmic_dcdc_is_enabled,
+ .enable = tps65217_pmic_dcdc_enable,
+ .disable = tps65217_pmic_dcdc_disable,
+ .get_voltage_sel = tps65217_pmic_dcdc_get_voltage_sel,
+ .set_voltage = tps65217_pmic_dcdc_set_voltage,
+ .list_voltage = tps65217_pmic_dcdc_list_voltage,
+};
+
+/* Operations permitted on LDO1 */
+static struct regulator_ops tps65217_pmic_ldo1_ops = {
+ .is_enabled = tps65217_pmic_ldo_is_enabled,
+ .enable = tps65217_pmic_ldo_enable,
+ .disable = tps65217_pmic_ldo_disable,
+ .get_voltage_sel = tps65217_pmic_ldo_get_voltage_sel,
+ .set_voltage_sel = tps65217_pmic_ldo_set_voltage_sel,
+ .list_voltage = tps65217_pmic_ldo_list_voltage,
+};
+
+/* Operations permitted on LDO2, LDO3 and LDO4 */
+static struct regulator_ops tps65217_pmic_ldo234_ops = {
+ .is_enabled = tps65217_pmic_ldo_is_enabled,
+ .enable = tps65217_pmic_ldo_enable,
+ .disable = tps65217_pmic_ldo_disable,
+ .get_voltage_sel = tps65217_pmic_ldo_get_voltage_sel,
+ .set_voltage = tps65217_pmic_ldo_set_voltage,
+ .list_voltage = tps65217_pmic_ldo_list_voltage,
+};
+
+static struct regulator_desc regulators[] = {
+ TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1,
+ tps65217_pmic_dcdc_ops, 64),
+ TPS65217_REGULATOR("DCDC2",TPS65217_DCDC_2,
+ tps65217_pmic_dcdc_ops, 64),
+ TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3,
+ tps65217_pmic_dcdc_ops, 64),
+ TPS65217_REGULATOR("LDO1", TPS65217_LDO_1,
+ tps65217_pmic_ldo1_ops, 16),
+ TPS65217_REGULATOR("LDO2", TPS65217_LDO_2,
+ tps65217_pmic_ldo234_ops, 64),
+ TPS65217_REGULATOR("LDO3", TPS65217_LDO_3,
+ tps65217_pmic_ldo234_ops, 32),
+ TPS65217_REGULATOR("LDO4", TPS65217_LDO_4,
+ tps65217_pmic_ldo234_ops, 32),
+};
+
+static int __devinit tps65217_regulator_probe(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev;
+ struct tps65217 *tps;
+ struct tps_info *info = &tps65217_pmic_regs[pdev->id];
+
+ /* Already set by core driver */
+ tps = dev_to_tps65217(pdev->dev.parent);
+ tps->info[pdev->id] = info;
+
+ rdev = regulator_register(&regulators[pdev->id], &pdev->dev,
+ pdev->dev.platform_data, tps, NULL);
+ if (IS_ERR(rdev))
+ return PTR_ERR(rdev);
+
+ platform_set_drvdata(pdev, rdev);
+
+ return 0;
+}
+
+static int __devexit tps65217_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ regulator_unregister(rdev);
+
+ return 0;
+}
+
+static struct platform_driver tps65217_regulator_driver = {
+ .driver = {
+ .name = "tps65217-pmic",
+ },
+ .probe = tps65217_regulator_probe,
+ .remove = __devexit_p(tps65217_regulator_remove),
+};
+
+static int __init tps65217_regulator_init(void)
+{
+ return platform_driver_register(&tps65217_regulator_driver);
+}
+subsys_initcall(tps65217_regulator_init);
+
+static void __exit tps65217_regulator_exit(void)
+{
+ platform_driver_unregister(&tps65217_regulator_driver);
+}
+module_exit(tps65217_regulator_exit);
+
+
+MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>");
+MODULE_DESCRIPTION("TPS65217 voltage regulator driver");
+MODULE_ALIAS("platform:tps65217-pmic");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 5c15ba01e9c7..9092b7f998c1 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -26,6 +26,9 @@
#include <linux/mfd/tps65910.h>
#define TPS65910_SUPPLY_STATE_ENABLED 0x1
+#define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 | \
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
/* supported VIO voltages in milivolts */
static const u16 VIO_VSEL_table[] = {
@@ -83,8 +86,8 @@ struct tps_info {
const char *name;
unsigned min_uV;
unsigned max_uV;
- u8 table_len;
- const u16 *table;
+ u8 n_voltages;
+ const u16 *voltage_table;
};
static struct tps_info tps65910_regs[] = {
@@ -95,8 +98,8 @@ static struct tps_info tps65910_regs[] = {
.name = "VIO",
.min_uV = 1500000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VIO_VSEL_table),
- .table = VIO_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
+ .voltage_table = VIO_VSEL_table,
},
{
.name = "VDD1",
@@ -112,132 +115,179 @@ static struct tps_info tps65910_regs[] = {
.name = "VDD3",
.min_uV = 5000000,
.max_uV = 5000000,
- .table_len = ARRAY_SIZE(VDD3_VSEL_table),
- .table = VDD3_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
+ .voltage_table = VDD3_VSEL_table,
},
{
.name = "VDIG1",
.min_uV = 1200000,
.max_uV = 2700000,
- .table_len = ARRAY_SIZE(VDIG1_VSEL_table),
- .table = VDIG1_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
+ .voltage_table = VDIG1_VSEL_table,
},
{
.name = "VDIG2",
.min_uV = 1000000,
.max_uV = 1800000,
- .table_len = ARRAY_SIZE(VDIG2_VSEL_table),
- .table = VDIG2_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
+ .voltage_table = VDIG2_VSEL_table,
},
{
.name = "VPLL",
.min_uV = 1000000,
.max_uV = 2500000,
- .table_len = ARRAY_SIZE(VPLL_VSEL_table),
- .table = VPLL_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
+ .voltage_table = VPLL_VSEL_table,
},
{
.name = "VDAC",
.min_uV = 1800000,
.max_uV = 2850000,
- .table_len = ARRAY_SIZE(VDAC_VSEL_table),
- .table = VDAC_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
+ .voltage_table = VDAC_VSEL_table,
},
{
.name = "VAUX1",
.min_uV = 1800000,
.max_uV = 2850000,
- .table_len = ARRAY_SIZE(VAUX1_VSEL_table),
- .table = VAUX1_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
+ .voltage_table = VAUX1_VSEL_table,
},
{
.name = "VAUX2",
.min_uV = 1800000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VAUX2_VSEL_table),
- .table = VAUX2_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
+ .voltage_table = VAUX2_VSEL_table,
},
{
.name = "VAUX33",
.min_uV = 1800000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VAUX33_VSEL_table),
- .table = VAUX33_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
+ .voltage_table = VAUX33_VSEL_table,
},
{
.name = "VMMC",
.min_uV = 1800000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VMMC_VSEL_table),
- .table = VMMC_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
+ .voltage_table = VMMC_VSEL_table,
},
};
static struct tps_info tps65911_regs[] = {
{
+ .name = "VRTC",
+ },
+ {
.name = "VIO",
.min_uV = 1500000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(VIO_VSEL_table),
- .table = VIO_VSEL_table,
+ .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
+ .voltage_table = VIO_VSEL_table,
},
{
.name = "VDD1",
.min_uV = 600000,
.max_uV = 4500000,
+ .n_voltages = 73,
},
{
.name = "VDD2",
.min_uV = 600000,
.max_uV = 4500000,
+ .n_voltages = 73,
},
{
.name = "VDDCTRL",
.min_uV = 600000,
.max_uV = 1400000,
+ .n_voltages = 65,
},
{
.name = "LDO1",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 47,
},
{
.name = "LDO2",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 47,
},
{
.name = "LDO3",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
{
.name = "LDO4",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 47,
},
{
.name = "LDO5",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
{
.name = "LDO6",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
{
.name = "LDO7",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
{
.name = "LDO8",
.min_uV = 1000000,
.max_uV = 3300000,
+ .n_voltages = 24,
},
};
+#define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
+static unsigned int tps65910_ext_sleep_control[] = {
+ 0,
+ EXT_CONTROL_REG_BITS(VIO, 1, 0),
+ EXT_CONTROL_REG_BITS(VDD1, 1, 1),
+ EXT_CONTROL_REG_BITS(VDD2, 1, 2),
+ EXT_CONTROL_REG_BITS(VDD3, 1, 3),
+ EXT_CONTROL_REG_BITS(VDIG1, 0, 1),
+ EXT_CONTROL_REG_BITS(VDIG2, 0, 2),
+ EXT_CONTROL_REG_BITS(VPLL, 0, 6),
+ EXT_CONTROL_REG_BITS(VDAC, 0, 7),
+ EXT_CONTROL_REG_BITS(VAUX1, 0, 3),
+ EXT_CONTROL_REG_BITS(VAUX2, 0, 4),
+ EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
+ EXT_CONTROL_REG_BITS(VMMC, 0, 0),
+};
+
+static unsigned int tps65911_ext_sleep_control[] = {
+ 0,
+ EXT_CONTROL_REG_BITS(VIO, 1, 0),
+ EXT_CONTROL_REG_BITS(VDD1, 1, 1),
+ EXT_CONTROL_REG_BITS(VDD2, 1, 2),
+ EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
+ EXT_CONTROL_REG_BITS(LDO1, 0, 1),
+ EXT_CONTROL_REG_BITS(LDO2, 0, 2),
+ EXT_CONTROL_REG_BITS(LDO3, 0, 7),
+ EXT_CONTROL_REG_BITS(LDO4, 0, 6),
+ EXT_CONTROL_REG_BITS(LDO5, 0, 3),
+ EXT_CONTROL_REG_BITS(LDO6, 0, 0),
+ EXT_CONTROL_REG_BITS(LDO7, 0, 5),
+ EXT_CONTROL_REG_BITS(LDO8, 0, 4),
+};
+
struct tps65910_reg {
struct regulator_desc *desc;
struct tps65910 *mfd;
@@ -247,6 +297,8 @@ struct tps65910_reg {
int num_regulators;
int mode;
int (*get_ctrl_reg)(int);
+ unsigned int *ext_sleep_control;
+ unsigned int board_ext_control[TPS65910_NUM_REGS];
};
static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg)
@@ -572,7 +624,7 @@ static int tps65910_get_voltage(struct regulator_dev *dev)
return -EINVAL;
}
- voltage = pmic->info[id]->table[value] * 1000;
+ voltage = pmic->info[id]->voltage_table[value] * 1000;
return voltage;
}
@@ -622,7 +674,7 @@ static int tps65911_get_voltage(struct regulator_dev *dev)
step_mv = 100;
break;
case TPS65910_REG_VIO:
- return pmic->info[id]->table[value] * 1000;
+ return pmic->info[id]->voltage_table[value] * 1000;
break;
default:
return -EINVAL;
@@ -756,10 +808,10 @@ static int tps65910_list_voltage(struct regulator_dev *dev,
if (id < TPS65910_REG_VIO || id > TPS65910_REG_VMMC)
return -EINVAL;
- if (selector >= pmic->info[id]->table_len)
+ if (selector >= pmic->info[id]->n_voltages)
return -EINVAL;
else
- voltage = pmic->info[id]->table[selector] * 1000;
+ voltage = pmic->info[id]->voltage_table[selector] * 1000;
return voltage;
}
@@ -795,7 +847,7 @@ static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
step_mv = 100;
break;
case TPS65910_REG_VIO:
- return pmic->info[id]->table[selector] * 1000;
+ return pmic->info[id]->voltage_table[selector] * 1000;
default:
return -EINVAL;
}
@@ -847,6 +899,131 @@ static struct regulator_ops tps65911_ops = {
.list_voltage = tps65911_list_voltage,
};
+static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
+ int id, int ext_sleep_config)
+{
+ struct tps65910 *mfd = pmic->mfd;
+ u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
+ u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
+ int ret;
+
+ /*
+ * Regulator can not be control from multiple external input EN1, EN2
+ * and EN3 together.
+ */
+ if (ext_sleep_config & EXT_SLEEP_CONTROL) {
+ int en_count;
+ en_count = ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
+ en_count += ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
+ en_count += ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
+ if (en_count > 1) {
+ dev_err(mfd->dev,
+ "External sleep control flag is not proper\n");
+ return -EINVAL;
+ }
+ }
+
+ pmic->board_ext_control[id] = ext_sleep_config;
+
+ /* External EN1 control */
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN1\n");
+ return ret;
+ }
+
+ /* External EN2 control */
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN2\n");
+ return ret;
+ }
+
+ /* External EN3 control for TPS65910 LDO only */
+ if ((tps65910_chip_id(mfd) == TPS65910) &&
+ (id >= TPS65910_REG_VDIG1)) {
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN3\n");
+ return ret;
+ }
+ }
+
+ /* Return if no external control is selected */
+ if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
+ /* Clear all sleep controls */
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
+ if (!ret)
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
+ if (ret < 0)
+ dev_err(mfd->dev,
+ "Error in configuring SLEEP register\n");
+ return ret;
+ }
+
+ /*
+ * For regulator that has separate operational and sleep register make
+ * sure that operational is used and clear sleep register to turn
+ * regulator off when external control is inactive
+ */
+ if ((id == TPS65910_REG_VDD1) ||
+ (id == TPS65910_REG_VDD2) ||
+ ((id == TPS65911_REG_VDDCTRL) &&
+ (tps65910_chip_id(mfd) == TPS65911))) {
+ int op_reg_add = pmic->get_ctrl_reg(id) + 1;
+ int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
+ int opvsel = tps65910_reg_read(pmic, op_reg_add);
+ int srvsel = tps65910_reg_read(pmic, sr_reg_add);
+ if (opvsel & VDD1_OP_CMD_MASK) {
+ u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
+ ret = tps65910_reg_write(pmic, op_reg_add, reg_val);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring op register\n");
+ return ret;
+ }
+ }
+ ret = tps65910_reg_write(pmic, sr_reg_add, 0);
+ if (ret < 0) {
+ dev_err(mfd->dev, "Error in settting sr register\n");
+ return ret;
+ }
+ }
+
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
+ if (!ret)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
+ if (ret < 0)
+ dev_err(mfd->dev,
+ "Error in configuring SLEEP register\n");
+ return ret;
+}
+
static __devinit int tps65910_probe(struct platform_device *pdev)
{
struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
@@ -877,11 +1054,13 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
case TPS65910:
pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
+ pmic->ext_sleep_control = tps65910_ext_sleep_control;
info = tps65910_regs;
break;
case TPS65911:
pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
+ pmic->ext_sleep_control = tps65911_ext_sleep_control;
info = tps65911_regs;
break;
default:
@@ -926,7 +1105,7 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
pmic->desc[i].name = info->name;
pmic->desc[i].id = i;
- pmic->desc[i].n_voltages = info->table_len;
+ pmic->desc[i].n_voltages = info->n_voltages;
if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
pmic->desc[i].ops = &tps65910_ops_dcdc;
@@ -944,6 +1123,16 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
pmic->desc[i].ops = &tps65911_ops;
}
+ err = tps65910_set_ext_sleep_config(pmic, i,
+ pmic_plat_data->regulator_ext_sleep_control[i]);
+ /*
+ * Failing on regulator for configuring externally control
+ * is not a serious issue, just throw warning.
+ */
+ if (err < 0)
+ dev_warn(tps65910->dev,
+ "Failed to initialise ext control config\n");
+
pmic->desc[i].type = REGULATOR_VOLTAGE;
pmic->desc[i].owner = THIS_MODULE;
@@ -990,6 +1179,36 @@ static int __devexit tps65910_remove(struct platform_device *pdev)
return 0;
}
+static void tps65910_shutdown(struct platform_device *pdev)
+{
+ struct tps65910_reg *pmic = platform_get_drvdata(pdev);
+ int i;
+
+ /*
+ * Before bootloader jumps to kernel, it makes sure that required
+ * external control signals are in desired state so that given rails
+ * can be configure accordingly.
+ * If rails are configured to be controlled from external control
+ * then before shutting down/rebooting the system, the external
+ * control configuration need to be remove from the rails so that
+ * its output will be available as per register programming even
+ * if external controls are removed. This is require when the POR
+ * value of the control signals are not in active state and before
+ * bootloader initializes it, the system requires the rail output
+ * to be active for booting.
+ */
+ for (i = 0; i < pmic->num_regulators; i++) {
+ int err;
+ if (!pmic->rdev[i])
+ continue;
+
+ err = tps65910_set_ext_sleep_config(pmic, i, 0);
+ if (err < 0)
+ dev_err(&pdev->dev,
+ "Error in clearing external control\n");
+ }
+}
+
static struct platform_driver tps65910_driver = {
.driver = {
.name = "tps65910-pmic",
@@ -997,6 +1216,7 @@ static struct platform_driver tps65910_driver = {
},
.probe = tps65910_probe,
.remove = __devexit_p(tps65910_remove),
+ .shutdown = tps65910_shutdown,
};
static int __init tps65910_init(void)
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 6894009d815a..4f46067455c8 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1544,7 +1544,7 @@ int wm8350_register_led(struct wm8350 *wm8350, int lednum, int dcdc, int isink,
return -ENOMEM;
}
- led->isink_consumer.dev = &pdev->dev;
+ led->isink_consumer.dev_name = dev_name(&pdev->dev);
led->isink_consumer.supply = "led_isink";
led->isink_init.num_consumer_supplies = 1;
led->isink_init.consumer_supplies = &led->isink_consumer;
@@ -1559,7 +1559,7 @@ int wm8350_register_led(struct wm8350 *wm8350, int lednum, int dcdc, int isink,
return ret;
}
- led->dcdc_consumer.dev = &pdev->dev;
+ led->dcdc_consumer.dev_name = dev_name(&pdev->dev);
led->dcdc_consumer.supply = "led_vcc";
led->dcdc_init.num_consumer_supplies = 1;
led->dcdc_init.consumer_supplies = &led->dcdc_consumer;
diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h
index d0cb12eba402..fa6c6bf7a54d 100644
--- a/include/linux/mfd/tps65910.h
+++ b/include/linux/mfd/tps65910.h
@@ -768,6 +768,13 @@
/* Max number of TPS65910/11 regulators */
#define TPS65910_NUM_REGS 13
+/* External sleep controls through EN1/EN2/EN3 inputs*/
+#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 0x1
+#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 0x2
+#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 0x4
+/* TPS65911 names the EN3 signal as SLEEP */
+#define TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP 0x4
+
/**
* struct tps65910_board
* Board platform data may be used to initialize regulators.
@@ -779,6 +786,7 @@ struct tps65910_board {
int irq_base;
int vmbch_threshold;
int vmbch2_threshold;
+ unsigned long regulator_ext_sleep_control[TPS65910_NUM_REGS];
struct regulator_init_data *tps65910_pmic_init_data[TPS65910_NUM_REGS];
};
diff --git a/include/linux/regulator/tps62360.h b/include/linux/regulator/tps62360.h
new file mode 100644
index 000000000000..6a5c1b2c751e
--- /dev/null
+++ b/include/linux/regulator/tps62360.h
@@ -0,0 +1,57 @@
+/*
+ * tps62360.h -- TI tps62360
+ *
+ * Interface for regulator driver for TI TPS62360 Processor core supply
+ *
+ * Copyright (C) 2012 NVIDIA Corporation
+
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef __LINUX_REGULATOR_TPS62360_H
+#define __LINUX_REGULATOR_TPS62360_H
+
+#include <linux/regulator/machine.h>
+
+/*
+ * struct tps62360_regulator_platform_data - tps62360 regulator platform data.
+ *
+ * @reg_init_data: The regulator init data.
+ * @en_force_pwm: Enable force pwm or not.
+ * @en_discharge: Enable discharge the output capacitor via internal
+ * register.
+ * @en_internal_pulldn: internal pull down enable or not.
+ * @vsel0_gpio: Gpio number for vsel0. It should be -1 if this is tied with
+ * fixed logic.
+ * @vsel1_gpio: Gpio number for vsel1. It should be -1 if this is tied with
+ * fixed logic.
+ * @vsel0_def_state: Default state of vsel0. 1 if it is high else 0.
+ * @vsel1_def_state: Default state of vsel1. 1 if it is high else 0.
+ */
+struct tps62360_regulator_platform_data {
+ struct regulator_init_data reg_init_data;
+ bool en_force_pwm;
+ bool en_discharge;
+ bool en_internal_pulldn;
+ int vsel0_gpio;
+ int vsel1_gpio;
+ int vsel0_def_state;
+ int vsel1_def_state;
+};
+
+#endif /* __LINUX_REGULATOR_TPS62360_H */
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-11-06 11:36:28 +0100