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Merge branch 'regulator-drivers' into regulator-supply

This commit is contained in:
Mark Brown 2012-02-02 13:51:23 +00:00
parent 62aa2b537c 20a14b84f8
commit fb87ef1a12
14 changed files with 2492 additions and 122 deletions
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31
drivers/regulator/Kconfig
View File

@ -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

5
drivers/regulator/Makefile
View File

@ -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

118
drivers/regulator/db8500-prcmu.c
View File

@ -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 @@ static int db8500_regulator_switch_enable(struct regulator_dev *rdev)
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 @@ static int db8500_regulator_switch_disable(struct regulator_dev *rdev)
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);

241
drivers/regulator/dbx500-prcmu.c Normal file
View File

@ -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

63
drivers/regulator/dbx500-prcmu.h Normal file
View File

@ -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

8
drivers/regulator/max8997.c
View File

@ -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,

2
drivers/regulator/mc13xxx-regulator-core.c
View File

@ -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");

832
drivers/regulator/s5m8767.c Normal file
View File

@ -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");

472
drivers/regulator/tps62360-regulator.c Normal file
View File

@ -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");

493
drivers/regulator/tps65217-regulator.c Normal file
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@ -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");

280
drivers/regulator/tps65910-regulator.c
View File

@ -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)

4
drivers/regulator/wm8350-regulator.c
View File

@ -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;

8
include/linux/mfd/tps65910.h
View File

@ -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];
};

57
include/linux/regulator/tps62360.h Normal file
View File

@ -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 */