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kernel_samsung_a53x/drivers/regulator/s2mpu13_regulator.c
Gabriel2392 7ed7ee9edf Import A536BXXU9EXDC
2024-06-15 16:02:09 -03:00

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/*
* s2mpu13.c
*
* Copyright (c) 2021 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/of_gpio.h>
#include <../drivers/pinctrl/samsung/pinctrl-samsung.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/samsung/s2mpu13.h>
#include <linux/mfd/samsung/s2mpu13-regulator.h>
#include <linux/io.h>
#include <linux/mutex.h>
#include <linux/interrupt.h>
#include <soc/samsung/exynos-pmu-if.h>
#include <linux/regulator/pmic_class.h>
#include <linux/reset/exynos-reset.h>
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
#include <soc/samsung/acpm_mfd.h>
#define MAIN_CHANNEL 0
static struct device_node *acpm_mfd_node;
#endif
#define I2C_BASE_COMMON 0x00
#define I2C_BASE_PM 0x01
#define I2C_BASE_RTC 0x02
#define I2C_BASE_ADC 0x0A
#define I2C_BASE_GPIO 0x0B
#define I2C_BASE_CLOSE 0x0F
static struct s2mpu13_info *s2mpu13_static_info;
static int s2mpu13_buck_ocp_cnt[S2MPU13_BUCK_MAX]; /* BUCK 1~10 OCP count */
static int s2mpu13_buck_oi_cnt[S2MPU13_BUCK_MAX]; /* BUCK 1~10 OI count */
static int s2mpu13_ldo_oi_cnt[S2MPU13_LDO_MAX]; /* LDO (1, 2, 11, 13) OI count */
static int s2mpu13_temp_cnt[S2MPU13_TEMP_MAX]; /* 0 : 120 degree , 1 : 140 degree */
struct s2mpu13_info {
struct regulator_dev *rdev[S2MPU13_REGULATOR_MAX];
unsigned int opmode[S2MPU13_REGULATOR_MAX];
int num_regulators;
struct s2mpu13_dev *iodev;
struct mutex lock;
struct i2c_client *i2c;
struct i2c_client *gpio_i2c;
int buck_ocp_irq[S2MPU13_BUCK_MAX]; /* BUCK OCP IRQ */
int buck_oi_irq[S2MPU13_BUCK_MAX]; /* BUCK OI IRQ */
int ldo_oi_irq[S2MPU13_LDO_MAX]; /* LDO OI IRQ */
int temp_irq[S2MPU13_TEMP_MAX]; /* 0 : 120 degree, 1 : 140 degree */
#if IS_ENABLED(CONFIG_DRV_SAMSUNG_PMIC)
u8 base_addr;
u8 read_addr;
u8 read_val;
struct device *dev;
#endif
};
int s2mpu13_set_reboot_option(void)
{
int ret = 0;
/* PMIC: reboot option disable */
ret = s2mpu13_write_reg(s2mpu13_static_info->i2c, S2MPU13_PMIC_REG_REBOOT_OPTION, 0x00);
if (ret < 0) {
pr_err("%s: s2mpu13_write_reg failed\n", __func__);
return -1;
}
pr_info("%s: reboot_option disable\n", __func__);
return 0;
}
EXPORT_SYMBOL_GPL(s2mpu13_set_reboot_option);
int s2mpu13_write_gpio(unsigned char reg, unsigned char value)
{
int ret = 0;
if (reg < S2MPU13_GPIO_SETH && reg > S2MPU13_GPIO_SET8) {
pr_err("%s: fault reg.\n", __func__);
return -1;
}
ret = s2mpu13_write_reg(s2mpu13_static_info->gpio_i2c, reg, value);
if (ret < 0) {
pr_err("%s: s2mpu13_write_reg fail\n", __func__);
return -1;
}
return 0;
}
EXPORT_SYMBOL_GPL(s2mpu13_write_gpio);
int s2mpu13_read_gpio(unsigned char reg, unsigned char *dest)
{
int ret = 0;
if (reg < S2MPU13_GPIO_SETH && reg > S2MPU13_GPIO_SET8) {
pr_err("%s: fault reg.\n", __func__);
return -1;
}
ret = s2mpu13_read_reg(s2mpu13_static_info->gpio_i2c, reg, dest);
if (ret < 0) {
pr_err("%s: s2mpu13_read_reg fail\n", __func__);
return -1;
}
return 0;
}
EXPORT_SYMBOL_GPL(s2mpu13_read_gpio);
static unsigned int s2mpu13_of_map_mode(unsigned int val)
{
switch (val) {
case SEC_OPMODE_SUSPEND: /* ON in Standby Mode */
return 0x1;
case SEC_OPMODE_MIF: /* ON in PWREN_MIF mode */
return 0x2;
case SEC_OPMODE_ON: /* ON in Normal Mode */
return 0x3;
default:
return REGULATOR_MODE_INVALID;
}
}
/* Some LDOs supports [LPM/Normal]ON mode during suspend state */
static int s2m_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct s2mpu13_info *s2mpu13 = rdev_get_drvdata(rdev);
unsigned int val;
int id = rdev_get_id(rdev);
val = mode << S2MPU13_ENABLE_SHIFT;
s2mpu13->opmode[id] = val;
return 0;
}
static int s2m_enable(struct regulator_dev *rdev)
{
struct s2mpu13_info *s2mpu13 = rdev_get_drvdata(rdev);
return s2mpu13_update_reg(s2mpu13->i2c, rdev->desc->enable_reg,
s2mpu13->opmode[rdev_get_id(rdev)],
rdev->desc->enable_mask);
}
static int s2m_disable_regmap(struct regulator_dev *rdev)
{
struct s2mpu13_info *s2mpu13 = rdev_get_drvdata(rdev);
unsigned int val;
if (rdev->desc->enable_is_inverted)
val = rdev->desc->enable_mask;
else
val = 0;
return s2mpu13_update_reg(s2mpu13->i2c, rdev->desc->enable_reg,
val, rdev->desc->enable_mask);
}
static int s2m_is_enabled_regmap(struct regulator_dev *rdev)
{
struct s2mpu13_info *s2mpu13 = rdev_get_drvdata(rdev);
int ret;
u8 val;
ret = s2mpu13_read_reg(s2mpu13->i2c,
rdev->desc->enable_reg, &val);
if (ret)
return ret;
if (rdev->desc->enable_is_inverted)
return (val & rdev->desc->enable_mask) == 0;
else
return (val & rdev->desc->enable_mask) != 0;
}
static int get_ramp_delay(int ramp_delay)
{
unsigned char cnt = 0;
ramp_delay /= 6;
while (true) {
ramp_delay = ramp_delay >> 1;
if (ramp_delay == 0)
break;
cnt++;
}
return cnt;
}
static int s2m_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
{
struct s2mpu13_info *s2mpu13 = rdev_get_drvdata(rdev);
int ramp_shift, reg_id = rdev_get_id(rdev);
int ramp_addr;
unsigned int ramp_value = 0;
ramp_value = get_ramp_delay(ramp_delay / 1000);
if (ramp_value > 4) {
pr_warn("%s: ramp_delay: %d not supported\n",
rdev->desc->name, ramp_delay);
}
ramp_value = 0x00; // 6.25mv/us fixed
switch (reg_id) {
case S2MPU13_BUCK1:
case S2MPU13_BUCK5:
case S2MPU13_BUCK9:
ramp_shift = 6;
break;
//case S2MPU13_BUCK2:
case S2MPU13_BUCK6:
case S2MPU13_BUCK10:
ramp_shift = 4;
break;
//case S2MPU13_BUCK3:
//case S2MPU13_BUCK7:
// ramp_shift = 2;
// break;
case S2MPU13_BUCK4:
case S2MPU13_BUCK8:
ramp_shift = 0;
break;
default:
return -EINVAL;
}
switch (reg_id) {
case S2MPU13_BUCK1:
//case S2MPU13_BUCK2:
//case S2MPU13_BUCK3:
case S2MPU13_BUCK4:
ramp_addr = S2MPU13_PMIC_REG_BUCK_RAMP_UP1M;
break;
case S2MPU13_BUCK5:
case S2MPU13_BUCK6:
//case S2MPU13_BUCK7:
case S2MPU13_BUCK8:
ramp_addr = S2MPU13_PMIC_REG_BUCK_RAMP_UP2M;
break;
case S2MPU13_BUCK9:
case S2MPU13_BUCK10:
ramp_addr = S2MPU13_PMIC_REG_BUCK_RAMP_UP3M;
break;
default:
return -EINVAL;
}
return s2mpu13_update_reg(s2mpu13->i2c, ramp_addr,
ramp_value << ramp_shift, BUCK_RAMP_MASK << ramp_shift);
}
static int s2m_get_voltage_sel_regmap(struct regulator_dev *rdev)
{
struct s2mpu13_info *s2mpu13 = rdev_get_drvdata(rdev);
int ret;
u8 val;
ret = s2mpu13_read_reg(s2mpu13->i2c, rdev->desc->vsel_reg, &val);
if (ret)
return ret;
val &= rdev->desc->vsel_mask;
return val;
}
static int s2m_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel)
{
struct s2mpu13_info *s2mpu13 = rdev_get_drvdata(rdev);
int ret;
ret = s2mpu13_update_reg(s2mpu13->i2c, rdev->desc->vsel_reg,
sel, rdev->desc->vsel_mask);
if (ret < 0)
goto out;
if (rdev->desc->apply_bit)
ret = s2mpu13_update_reg(s2mpu13->i2c, rdev->desc->apply_reg,
rdev->desc->apply_bit,
rdev->desc->apply_bit);
return ret;
out:
pr_warn("%s: failed to set voltage_sel_regmap\n", rdev->desc->name);
return ret;
}
static int s2m_set_voltage_sel_regmap_buck(struct regulator_dev *rdev,
unsigned sel)
{
int ret = 0;
struct s2mpu13_info *s2mpu13 = rdev_get_drvdata(rdev);
ret = s2mpu13_write_reg(s2mpu13->i2c, rdev->desc->vsel_reg, sel);
if (ret < 0)
goto i2c_out;
if (rdev->desc->apply_bit)
ret = s2mpu13_update_reg(s2mpu13->i2c, rdev->desc->apply_reg,
rdev->desc->apply_bit,
rdev->desc->apply_bit);
return ret;
i2c_out:
pr_warn("%s: failed to set voltage_sel_regmap\n", rdev->desc->name);
ret = -EINVAL;
return ret;
}
static int s2m_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
unsigned int ramp_delay = 0;
int old_volt, new_volt;
if (rdev->constraints->ramp_delay)
ramp_delay = rdev->constraints->ramp_delay;
else if (rdev->desc->ramp_delay)
ramp_delay = rdev->desc->ramp_delay;
if (ramp_delay == 0) {
pr_warn("%s: ramp_delay not set\n", rdev->desc->name);
return -EINVAL;
}
/* sanity check */
if (!rdev->desc->ops->list_voltage)
return -EINVAL;
old_volt = rdev->desc->ops->list_voltage(rdev, old_selector);
new_volt = rdev->desc->ops->list_voltage(rdev, new_selector);
if (old_selector < new_selector)
return DIV_ROUND_UP(new_volt - old_volt, ramp_delay);
else
return DIV_ROUND_UP(old_volt - new_volt, ramp_delay);
return 0;
}
static int s2mpu13_read_pwron_status(void)
{
struct s2mpu13_info *s2mpu13 = s2mpu13_static_info;
u8 val = 0;
int ret = 0;
if (!s2mpu13)
return -ENODEV;
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
ret = exynos_acpm_read_reg(acpm_mfd_node, MAIN_CHANNEL, I2C_BASE_PM, S2MPU13_PMIC_REG_STATUS1, &val);
if (ret) {
pr_err("%s: acpm ipc fail(%#x)\n", __func__, S2MPU13_PMIC_REG_STATUS1);
return -EINVAL;
}
#endif
pr_info("%s: 0x%02hhx\n", __func__, val);
return (val & S2MPU13_STATUS1_PWRON);
}
int pmic_read_pwrkey_status(void)
{
return s2mpu13_read_pwron_status();
}
EXPORT_SYMBOL_GPL(pmic_read_pwrkey_status);
static struct regulator_ops s2mpu13_ldo_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = s2m_is_enabled_regmap,
.enable = s2m_enable,
.disable = s2m_disable_regmap,
.get_voltage_sel = s2m_get_voltage_sel_regmap,
.set_voltage_sel = s2m_set_voltage_sel_regmap,
.set_voltage_time_sel = s2m_set_voltage_time_sel,
.set_mode = s2m_set_mode,
};
static struct regulator_ops s2mpu13_buck_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = s2m_is_enabled_regmap,
.enable = s2m_enable,
.disable = s2m_disable_regmap,
.get_voltage_sel = s2m_get_voltage_sel_regmap,
.set_voltage_sel = s2m_set_voltage_sel_regmap_buck,
.set_voltage_time_sel = s2m_set_voltage_time_sel,
.set_mode = s2m_set_mode,
.set_ramp_delay = s2m_set_ramp_delay,
};
//
//static struct regulator_ops s2mpu13_bb_ops = {
// .list_voltage = regulator_list_voltage_linear,
// .map_voltage = regulator_map_voltage_linear,
// .is_enabled = s2m_is_enabled_regmap,
// .enable = s2m_enable,
// .disable = s2m_disable_regmap,
// .get_voltage_sel = s2m_get_voltage_sel_regmap,
// .set_voltage_sel = s2m_set_voltage_sel_regmap,
// .set_voltage_time_sel = s2m_set_voltage_time_sel,
// .set_mode = s2m_set_mode,
//};
//
#define _BUCK(macro) S2MPU13_BUCK##macro
#define _buck_ops(num) s2mpu13_buck_ops##num
#define _LDO(macro) S2MPU13_LDO##macro
#define _ldo_ops(num) s2mpu13_ldo_ops##num
#define _BB(macro) S2MPU13_BB##macro
#define _bb_ops(num) s2mpu13_bb_ops##num
#define _REG(ctrl) S2MPU13_PMIC_REG##ctrl
#define _TIME(macro) S2MPU13_ENABLE_TIME##macro
#define _LDO_MIN(group) S2MPU13_LDO_MIN##group
#define _LDO_STEP(group) S2MPU13_LDO_STEP##group
#define _BUCK_MIN(group) S2MPU13_BUCK_MIN##group
#define _BUCK_STEP(group) S2MPU13_BUCK_STEP##group
#define _BB_MIN(group) S2MPU13_BB_MIN##group
#define _BB_STEP(group) S2MPU13_BB_STEP##group
#define BUCK_DESC(_name, _id, _ops, g, v, e, t) { \
.name = _name, \
.id = _id, \
.ops = _ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = _BUCK_MIN(g), \
.uV_step = _BUCK_STEP(g), \
.n_voltages = S2MPU13_BUCK_N_VOLTAGES, \
.vsel_reg = v, \
.vsel_mask = S2MPU13_BUCK_VSEL_MASK, \
.enable_reg = e, \
.enable_mask = S2MPU13_ENABLE_MASK, \
.enable_time = t, \
.of_map_mode = s2mpu13_of_map_mode \
}
#define LDO_DESC(_name, _id, _ops, g, v, e, t) { \
.name = _name, \
.id = _id, \
.ops = _ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = _LDO_MIN(g), \
.uV_step = _LDO_STEP(g), \
.n_voltages = S2MPU13_LDO_N_VOLTAGES, \
.vsel_reg = v, \
.vsel_mask = S2MPU13_LDO_VSEL_MASK, \
.enable_reg = e, \
.enable_mask = S2MPU13_ENABLE_MASK, \
.enable_time = t, \
.of_map_mode = s2mpu13_of_map_mode \
}
//
//#define BB_DESC(_name, _id, _ops, g, v, e, t) { \
// .name = _name, \
// .id = _id, \
// .ops = _ops, \
// .type = REGULATOR_VOLTAGE, \
// .owner = THIS_MODULE, \
// .min_uV = _BB_MIN(), \
// .uV_step = _BB_STEP(), \
// .n_voltages = S2MPU13_BB_N_VOLTAGES, \
// .vsel_reg = v, \
// .vsel_mask = S2MPU13_BB_VSEL_MASK, \
// .enable_reg = e, \
// .enable_mask = S2MPU13_ENABLE_MASK, \
// .enable_time = t, \
// .of_map_mode = s2mpu13_of_map_mode \
//}
//
static struct regulator_desc regulators[S2MPU13_REGULATOR_MAX] = {
/* name, id, ops, group, vsel_reg, enable_reg, ramp_delay */
/* LDO 1~28 */
LDO_DESC("LDO1", _LDO(1), &_ldo_ops(), 3, _REG(_L1CTRL), _REG(_L1CTRL), _TIME(_LDO)),
LDO_DESC("LDO2", _LDO(2), &_ldo_ops(), 4, _REG(_L2CTRL), _REG(_L2CTRL), _TIME(_LDO)),
//LDO_DESC("LDO3", _LDO(3), &_ldo_ops(), 2, _REG(_L3CTRL), _REG(_L3CTRL), _TIME(_LDO)),
//LDO_DESC("LDO4", _LDO(4), &_ldo_ops(), 1, _REG(_L4CTRL), _REG(_L4CTRL), _TIME(_LDO)),
//LDO_DESC("LDO5", _LDO(5), &_ldo_ops(), 1, _REG(_L5CTRL1), _REG(_L5CTRL1), _TIME(_LDO)),
//LDO_DESC("LDO6", _LDO(6), &_ldo_ops(), 1, _REG(_L6CTRL), _REG(_L6CTRL), _TIME(_LDO)),
LDO_DESC("LDO7", _LDO(7), &_ldo_ops(), 1, _REG(_L7CTRL), _REG(_L7CTRL), _TIME(_LDO)),
//LDO_DESC("LDO8", _LDO(8), &_ldo_ops(), 2, _REG(_L8CTRL), _REG(_L8CTRL), _TIME(_LDO)),
LDO_DESC("LDO9", _LDO(9), &_ldo_ops(), 1, _REG(_L9CTRL), _REG(_L9CTRL), _TIME(_LDO)),
LDO_DESC("LDO10", _LDO(10), &_ldo_ops(), 1, _REG(_L10CTRL), _REG(_L10CTRL), _TIME(_LDO)),
LDO_DESC("LDO11", _LDO(11), &_ldo_ops(), 3, _REG(_L11CTRL), _REG(_L11CTRL), _TIME(_LDO)),
LDO_DESC("LDO12", _LDO(12), &_ldo_ops(), 3, _REG(_L12CTRL), _REG(_L12CTRL), _TIME(_LDO)),
LDO_DESC("LDO13", _LDO(13), &_ldo_ops(), 4, _REG(_L13CTRL), _REG(_L13CTRL), _TIME(_LDO)),
LDO_DESC("LDO14", _LDO(14), &_ldo_ops(), 4, _REG(_L14CTRL), _REG(_L14CTRL), _TIME(_LDO)),
//LDO_DESC("LDO15", _LDO(15), &_ldo_ops(), 3, _REG(_L15CTRL), _REG(_L15CTRL), _TIME(_LDO)),
//LDO_DESC("LDO16", _LDO(16), &_ldo_ops(), 4, _REG(_L16CTRL), _REG(_L16CTRL), _TIME(_LDO)),
LDO_DESC("LDO17", _LDO(17), &_ldo_ops(), 3, _REG(_L17CTRL), _REG(_L17CTRL), _TIME(_LDO)),
//LDO_DESC("LDO18", _LDO(18), &_ldo_ops(), 3, _REG(_L18CTRL), _REG(_L18CTRL), _TIME(_LDO)),
//LDO_DESC("LDO19", _LDO(19), &_ldo_ops(), 4, _REG(_L19CTRL), _REG(_L19CTRL), _TIME(_LDO)),
//LDO_DESC("LDO20", _LDO(20), &_ldo_ops(), 4, _REG(_L20CTRL), _REG(_L20CTRL), _TIME(_LDO)),
LDO_DESC("LDO21", _LDO(21), &_ldo_ops(), 1, _REG(_L21CTRL1), _REG(_L21CTRL1), _TIME(_LDO)),
LDO_DESC("LDO22", _LDO(22), &_ldo_ops(), 4, _REG(_L22CTRL), _REG(_L22CTRL), _TIME(_LDO)),
LDO_DESC("LDO23", _LDO(23), &_ldo_ops(), 4, _REG(_L23CTRL), _REG(_L23CTRL), _TIME(_LDO)),
//LDO_DESC("LDO24", _LDO(24), &_ldo_ops(), 4, _REG(_L24CTRL), _REG(_L24CTRL), _TIME(_LDO)),
LDO_DESC("LDO25", _LDO(25), &_ldo_ops(), 4, _REG(_L25CTRL), _REG(_L25CTRL), _TIME(_LDO)),
LDO_DESC("LDO26", _LDO(26), &_ldo_ops(), 4, _REG(_L26CTRL), _REG(_L26CTRL), _TIME(_LDO)),
LDO_DESC("LDO27", _LDO(27), &_ldo_ops(), 4, _REG(_L27CTRL), _REG(_L27CTRL), _TIME(_LDO)),
//LDO_DESC("LDO28", _LDO(28), &_ldo_ops(), 4, _REG(_L28CTRL), _REG(_L28CTRL), _TIME(_LDO)),
/* BUCK 1~10 */
BUCK_DESC("BUCK1", _BUCK(1), &_buck_ops(), 1, _REG(_B1M_OUT1), _REG(_B1M_CTRL), _TIME(_BUCK)),
//BUCK_DESC("BUCK2", _BUCK(2), &_buck_ops(), 1, _REG(_B2M_OUT1), _REG(_B2M_CTRL), _TIME(_BUCK)),
//BUCK_DESC("BUCK3", _BUCK(3), &_buck_ops(), 1, _REG(_B3M_OUT1), _REG(_B3M_CTRL), _TIME(_BUCK)),
BUCK_DESC("BUCK4", _BUCK(4), &_buck_ops(), 1, _REG(_B4M_OUT2), _REG(_B4M_CTRL), _TIME(_BUCK)),
BUCK_DESC("BUCK5", _BUCK(5), &_buck_ops(), 1, _REG(_B5M_OUT1), _REG(_B5M_CTRL), _TIME(_BUCK)),
BUCK_DESC("BUCK6", _BUCK(6), &_buck_ops(), 1, _REG(_B6M_OUT1), _REG(_B6M_CTRL), _TIME(_BUCK)),
//BUCK_DESC("BUCK7", _BUCK(7), &_buck_ops(), 1, _REG(_B7M_OUT1), _REG(_B7M_CTRL), _TIME(_BUCK)),
BUCK_DESC("BUCK8", _BUCK(8), &_buck_ops(), 2, _REG(_B8M_OUT1), _REG(_B8M_CTRL), _TIME(_BUCK)),
BUCK_DESC("BUCK9", _BUCK(9), &_buck_ops(), 3, _REG(_B9M_OUT1), _REG(_B9M_CTRL), _TIME(_BUCK)),
BUCK_DESC("BUCK10", _BUCK(10), &_buck_ops(), 4, _REG(_B10M_OUT1), _REG(_B10M_CTRL), _TIME(_BUCK)),
};
#if IS_ENABLED(CONFIG_OF)
static int s2mpu13_pmic_dt_parse_pdata(struct s2mpu13_dev *iodev,
struct s2mpu13_platform_data *pdata)
{
struct device_node *pmic_np, *regulators_np, *reg_np;
struct s2mpu13_regulator_data *rdata;
u32 i;
int ret, len;
u32 val;
const u32 *p;
pmic_np = iodev->dev->of_node;
if (!pmic_np) {
dev_err(iodev->dev, "could not find pmic sub-node\n");
return -ENODEV;
}
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
acpm_mfd_node = pmic_np;
#endif
/* get 1 gpio values */
if (of_gpio_count(pmic_np) < 1) {
dev_err(iodev->dev, "could not find pmic gpios\n");
return -EINVAL;
}
pdata->smpl_warn = of_get_gpio(pmic_np, 0);
ret = of_property_read_u32(pmic_np, "smpl_warn_en", &val);
if (ret)
return -EINVAL;
pdata->smpl_warn_en = !!val;
/* Set SEL_VGPIO (control_sel) */
p = of_get_property(pmic_np, "sel_vgpio", &len);
if (!p) {
pr_info("%s : (ERROR) sel_vgpio isn't parsing\n", __func__);
return -EINVAL;
}
len = len / sizeof(u32);
if (len != S2MPU13_SEL_VGPIO_NUM) {
pr_info("%s : (ERROR) sel_vgpio num isn't not equal\n", __func__);
return -EINVAL;
}
pdata->sel_vgpio = devm_kzalloc(iodev->dev, sizeof(u32) * len, GFP_KERNEL);
if (!(pdata->sel_vgpio)) {
dev_err(iodev->dev,
"(ERROR) could not allocate memory for sel_vgpio data\n");
return -ENOMEM;
}
for (i = 0; i < len; i++) {
ret = of_property_read_u32_index(pmic_np, "sel_vgpio", i, &pdata->sel_vgpio[i]);
if (ret) {
pr_info("%s : (ERROR) sel_vgpio%d is empty\n", __func__, i + 1);
pdata->sel_vgpio[i] = 0x1FF;
}
}
regulators_np = of_find_node_by_name(pmic_np, "regulators");
if (!regulators_np) {
dev_err(iodev->dev, "could not find regulators sub-node\n");
return -EINVAL;
}
/* count the number of regulators to be supported in pmic */
pdata->num_regulators = 0;
for_each_child_of_node(regulators_np, reg_np) {
pdata->num_regulators++;
}
rdata = devm_kzalloc(iodev->dev, sizeof(*rdata) *
pdata->num_regulators, GFP_KERNEL);
if (!rdata)
return -ENOMEM;
pdata->regulators = rdata;
pdata->num_rdata = 0;
for_each_child_of_node(regulators_np, reg_np) {
for (i = 0; i < ARRAY_SIZE(regulators); i++)
if (!of_node_cmp(reg_np->name, regulators[i].name))
break;
if (i == ARRAY_SIZE(regulators)) {
dev_warn(iodev->dev,
"don't know how to configure regulator %s\n",
reg_np->name);
continue;
}
rdata->id = i;
rdata->initdata = of_get_regulator_init_data(iodev->dev, reg_np,
&regulators[i]);
rdata->reg_node = reg_np;
rdata++;
pdata->num_rdata++;
}
return 0;
}
#else
static int s2mpu13_pmic_dt_parse_pdata(struct s2mpu13_pmic_dev *iodev,
struct s2mpu13_platform_data *pdata)
{
return 0;
}
#endif /* CONFIG_OF */
#if IS_ENABLED(CONFIG_EXYNOS_AFM)
int main_pmic_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask)
{
if (!i2c)
return -ENODEV;
return s2mpu13_update_reg(i2c, reg, val, mask);
}
EXPORT_SYMBOL_GPL(main_pmic_update_reg);
int main_pmic_get_i2c(struct i2c_client **i2c)
{
if (!s2mpu13_static_info)
return -ENODEV;
*i2c = s2mpu13_static_info->i2c;
return 0;
}
EXPORT_SYMBOL_GPL(main_pmic_get_i2c);
#endif
static irqreturn_t s2mpu13_buck_ocp_irq(int irq, void *data)
{
struct s2mpu13_info *s2mpu13 = data;
u32 i;
mutex_lock(&s2mpu13->lock);
for (i = 0; i < S2MPU13_BUCK_MAX; i++) {
if (s2mpu13_static_info->buck_ocp_irq[i] == irq) {
s2mpu13_buck_ocp_cnt[i]++;
pr_info("%s : BUCK[%d] OCP IRQ : %d, %d\n",
__func__, i + 1, s2mpu13_buck_ocp_cnt[i], irq);
break;
}
}
mutex_unlock(&s2mpu13->lock);
return IRQ_HANDLED;
}
static irqreturn_t s2mpu13_buck_oi_irq(int irq, void *data)
{
struct s2mpu13_info *s2mpu13 = data;
u32 i;
mutex_lock(&s2mpu13->lock);
for (i = 0; i < S2MPU13_BUCK_MAX; i++) {
if (s2mpu13_static_info->buck_oi_irq[i] == irq) {
s2mpu13_buck_oi_cnt[i]++;
pr_info("%s : BUCK[%d] OI IRQ : %d, %d\n",
__func__, i + 1, s2mpu13_buck_oi_cnt[i], irq);
break;
}
}
mutex_unlock(&s2mpu13->lock);
return IRQ_HANDLED;
}
static irqreturn_t s2mpu13_ldo_oi_irq(int irq, void *data)
{
struct s2mpu13_info *s2mpu13 = data;
int ldo_oi_arr[S2MPU13_LDO_MAX] = {1, 2, 11, 13};
u32 i;
mutex_lock(&s2mpu13->lock);
for (i = 0; i < S2MPU13_LDO_MAX; i++) {
if (s2mpu13_static_info->ldo_oi_irq[i] == irq) {
s2mpu13_ldo_oi_cnt[i]++;
pr_info("%s : LDO[%d] OI IRQ : %d, %d\n",
__func__, ldo_oi_arr[i], s2mpu13_buck_oi_cnt[i], irq);
break;
}
}
mutex_unlock(&s2mpu13->lock);
return IRQ_HANDLED;
}
static irqreturn_t s2mpu13_temp_irq(int irq, void *data)
{
struct s2mpu13_info *s2mpu13 = data;
mutex_lock(&s2mpu13->lock);
if (s2mpu13_static_info->temp_irq[0] == irq) {
s2mpu13_temp_cnt[0]++;
pr_info("%s: PMIC thermal 120C IRQ : %d, %d\n",
__func__, s2mpu13_temp_cnt[0], irq);
} else if (s2mpu13_static_info->temp_irq[1] == irq) {
s2mpu13_temp_cnt[1]++;
pr_info("%s: PMIC thermal 140C IRQ : %d, %d\n",
__func__, s2mpu13_temp_cnt[1], irq);
}
mutex_unlock(&s2mpu13->lock);
return IRQ_HANDLED;
}
struct s2mpu13_oi_data {
u8 reg;
u8 val;
};
#define DECLARE_OI(_reg, _val) { .reg = (_reg), .val = (_val) }
static const struct s2mpu13_oi_data s2mpu13_oi[] = {
/* BUCK(1~10) & LDO(1, 2, 11, 13) OI function enable */
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_EN1M, 0xFF),
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_EN2M, 0x03),
DECLARE_OI(S2MPU13_PMIC_REG_LDO_OI_EN_M, 0x0F),
/* BUCK(1~10) & LDO(1, 2, 11, 13) OI function power down disable */
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_PD_EN1M, 0x00),
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_PD_EN2M, 0x00),
DECLARE_OI(S2MPU13_PMIC_REG_LDO_OI_PD_EN_M, 0x00),
/* OI detection time window : 300us, OI comp. output count : 50 times */
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_CTRL1M, 0xCC),
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_CTRL2M, 0xCC),
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_CTRL3M, 0xCC),
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_CTRL4M, 0xCC),
DECLARE_OI(S2MPU13_PMIC_REG_BUCK_OI_CTRL5M, 0xCC),
DECLARE_OI(S2MPU13_PMIC_REG_LDO_OI_CTRL_M, 0xFF),
};
static int s2mpu13_oi_function(struct s2mpu13_dev *iodev)
{
struct i2c_client *i2c = iodev->pmic;
u32 i;
u8 val;
int ret, cnt = 0;
char buf[1024] = {0, };
for (i = 0; i < ARRAY_SIZE(s2mpu13_oi); i++) {
ret = s2mpu13_write_reg(i2c, s2mpu13_oi[i].reg, s2mpu13_oi[i].val);
if (ret) {
pr_err("%s: failed to write register\n", __func__);
goto err;
}
}
for (i = 0; i < ARRAY_SIZE(s2mpu13_oi); i++) {
ret = s2mpu13_read_reg(i2c, s2mpu13_oi[i].reg, &val);
if (ret)
goto err;
cnt += snprintf(buf + cnt, sizeof(buf) - 1, "0x%x[0x%02hhx], ", s2mpu13_oi[i].reg, val);
}
pr_info("%s: %s\n", __func__, buf);
return 0;
err:
return -1;
}
static int s2mpu13_set_interrupt(struct platform_device *pdev,
struct s2mpu13_info *s2mpu13, int irq_base)
{
int i, ret;
/* BUCK 1~10 OCP interrupt */
for (i = 0; i < S2MPU13_BUCK_MAX; i++) {
if (i == 0)
continue;
s2mpu13->buck_ocp_irq[i] = irq_base +
S2MPU13_PMIC_IRQ_OCP_B1M_INT3 + i;
ret = devm_request_threaded_irq(&pdev->dev,
s2mpu13->buck_ocp_irq[i], NULL,
s2mpu13_buck_ocp_irq, 0,
"BUCK_OCP_IRQ", s2mpu13);
if (ret < 0) {
dev_err(&pdev->dev,
"Failed to request BUCK[%d] OCP IRQ: %d: %d\n",
i + 1, s2mpu13->buck_ocp_irq[i], ret);
goto err;
}
}
/* BUCK 1~10 OI interrupt */
for (i = 0; i < S2MPU13_BUCK_MAX; i++) {
s2mpu13->buck_oi_irq[i] = irq_base +
S2MPU13_PMIC_IRQ_OI_B1M_INT5 + i;
ret = devm_request_threaded_irq(&pdev->dev,
s2mpu13->buck_oi_irq[i], NULL,
s2mpu13_buck_oi_irq, 0,
"BUCK_OI_IRQ", s2mpu13);
if (ret < 0) {
dev_err(&pdev->dev,
"Failed to request BUCK[%d] OCP IRQ: %d: %d\n",
i + 1, s2mpu13->buck_oi_irq[i], ret);
goto err;
}
}
/* LDO (1, 2, 11, 13) OI interrupt */
for (i = 0; i < S2MPU13_LDO_MAX; i++) {
s2mpu13->ldo_oi_irq[i] = irq_base +
S2MPU13_PMIC_IRQ_SC_LDO1M_INT4 + i;
ret = devm_request_threaded_irq(&pdev->dev,
s2mpu13->ldo_oi_irq[i], NULL,
s2mpu13_ldo_oi_irq, 0,
"LDO_OI_IRQ", s2mpu13);
if (ret < 0) {
dev_err(&pdev->dev,
"Failed to request LDO[%d] OCP IRQ: %d: %d\n",
i + 1, s2mpu13->ldo_oi_irq[i], ret);
goto err;
}
}
/* Thermal interrupt */
for (i = 0; i < S2MPU13_TEMP_MAX; i++) {
s2mpu13->temp_irq[i] = irq_base + S2MPU13_PMIC_IRQ_INT120C_INT6 + i;
ret = devm_request_threaded_irq(&pdev->dev,
s2mpu13->temp_irq[i], NULL,
s2mpu13_temp_irq, 0,
"TEMP_IRQ", s2mpu13);
if (ret < 0) {
dev_err(&pdev->dev,
"Failed to request over temperature[%d] IRQ: %d: %d\n",
i, s2mpu13->temp_irq[i], ret);
goto err;
}
}
return 0;
err:
return -1;
}
#if IS_ENABLED(CONFIG_DRV_SAMSUNG_PMIC)
static ssize_t s2mpu13_read_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct s2mpu13_info *s2mpu13 = dev_get_drvdata(dev);
int ret;
u8 base_addr = 0, reg_addr = 0, val = 0;
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
struct s2mpu13_dev *iodev = s2mpu13->iodev;
#endif
if (buf == NULL) {
pr_info("%s: empty buffer\n", __func__);
return -1;
}
ret = sscanf(buf, "0x%02hhx%02hhx", &base_addr, &reg_addr);
if (ret != 2) {
pr_err("%s: input error\n", __func__);
return size;
}
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
mutex_lock(&iodev->i2c_lock);
ret = exynos_acpm_read_reg(acpm_mfd_node, MAIN_CHANNEL, base_addr, reg_addr, &val);
mutex_unlock(&iodev->i2c_lock);
if (ret)
pr_info("%s: fail to read i2c addr/data\n", __func__);
#endif
pr_info("%s: reg(0x%02hhx%02hhx) data(0x%02hhx)\n", __func__,
base_addr, reg_addr, val);
s2mpu13->base_addr = base_addr;
s2mpu13->read_addr = reg_addr;
s2mpu13->read_val = val;
return size;
}
static ssize_t s2mpu13_read_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mpu13_info *s2mpu13 = dev_get_drvdata(dev);
return sprintf(buf, "0x%02hhx%02hhx: 0x%02hhx\n",
s2mpu13->base_addr, s2mpu13->read_addr, s2mpu13->read_val);
}
static ssize_t s2mpu13_write_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
int ret;
u8 base_addr = 0, reg_addr = 0, data = 0;
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
struct s2mpu13_info *s2mpu13 = dev_get_drvdata(dev);
struct s2mpu13_dev *iodev = s2mpu13->iodev;
#endif
if (buf == NULL) {
pr_info("%s: empty buffer\n", __func__);
return size;
}
ret = sscanf(buf, "0x%02hhx%02hhx 0x%02hhx", &base_addr, &reg_addr, &data);
if (ret != 3) {
pr_err("%s: input error\n", __func__);
return size;
}
switch (base_addr) {
case I2C_BASE_COMMON:
case I2C_BASE_PM:
case I2C_BASE_RTC:
case I2C_BASE_ADC:
case I2C_BASE_GPIO:
case I2C_BASE_CLOSE:
break;
default:
pr_err("%s: base address error(0x%02hhx)\n", __func__, base_addr);
return size;
}
pr_info("%s: reg(0x%02hhx%02hhx) data(0x%02hhx)\n", __func__,
base_addr, reg_addr, data);
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
mutex_lock(&iodev->i2c_lock);
ret = exynos_acpm_write_reg(acpm_mfd_node, MAIN_CHANNEL, base_addr, reg_addr, data);
mutex_unlock(&iodev->i2c_lock);
if (ret)
pr_info("%s: fail to write i2c addr/data\n", __func__);
#endif
return size;
}
static ssize_t s2mpu13_write_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sprintf(buf, "echo (register addr.) (data) > s2mpu13_write\n");
}
static struct pmic_device_attribute regulator_attr[] = {
PMIC_ATTR(s2mpu13_write, 0644, s2mpu13_write_show, s2mpu13_write_store),
PMIC_ATTR(s2mpu13_read, 0644, s2mpu13_read_show, s2mpu13_read_store),
};
static int s2mpu13_create_sysfs(struct s2mpu13_info *s2mpu13)
{
struct device *s2mpu13_pmic = s2mpu13->dev;
struct device *dev = s2mpu13->iodev->dev;
char device_name[32] = {0, };
int err = -ENODEV, i = 0;
pr_info("%s()\n", __func__);
s2mpu13->base_addr = 0;
s2mpu13->read_addr = 0;
s2mpu13->read_val = 0;
/* Dynamic allocation for device name */
snprintf(device_name, sizeof(device_name) - 1, "%s@%s",
dev_driver_string(dev), dev_name(dev));
s2mpu13_pmic = pmic_device_create(s2mpu13, device_name);
s2mpu13->dev = s2mpu13_pmic;
/* Create sysfs entries */
for (i = 0; i < ARRAY_SIZE(regulator_attr); i++) {
err = device_create_file(s2mpu13_pmic, &regulator_attr[i].dev_attr);
if (err)
goto remove_pmic_device;
}
return 0;
remove_pmic_device:
for (i--; i >= 0; i--)
device_remove_file(s2mpu13_pmic, &regulator_attr[i].dev_attr);
pmic_device_destroy(s2mpu13_pmic->devt);
return -1;
}
#endif
static int s2mpu13_set_sel_vgpio(struct s2mpu13_info *s2mpu13,
struct s2mpu13_platform_data *pdata)
{
int ret, i, cnt = 0;
u8 reg, val;
char buf[1024] = {0, };
for (i = 0; i < S2MPU13_SEL_VGPIO_NUM; i++) {
reg = S2MPU13_PMIC_REG_SEL_VGPIO0M + i;
val = pdata->sel_vgpio[i];
if (val <= S2MPU13_SEL_VGPIO_MAX_VAL) {
ret = s2mpu13_write_reg(s2mpu13->i2c, reg, val);
if (ret) {
pr_err("%s: sel_vgpio%d write error\n", __func__, i + 1, __func__);
goto err;
}
cnt += snprintf(buf + cnt, sizeof(buf) - 1,
"0x%02hhx[0x%02hhx], ", reg, val);
} else {
pr_err("%s: sel_vgpio%d exceed the value\n", __func__, i + 1);
goto err;
}
}
pr_info("%s: %s\n", __func__, buf);
return 0;
err:
return -1;
}
int s2mpu13_set_instacok(void)
{
int ret;
ret = s2mpu13_update_reg(s2mpu13_static_info->i2c, S2MPU13_PMIC_REG_CFG1, 0x04, 0x04);
if (ret)
return -1;
return 0;
}
EXPORT_SYMBOL_GPL(s2mpu13_set_instacok);
#if IS_ENABLED(CONFIG_SEC_PM_DEBUG)
static u8 pmic_onsrc;
static u8 pmic_offsrc[2];
static ssize_t pwr_on_off_src_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "ONSRC:0x%02X OFFSRC:0x%02X,0x%02X\n",
pmic_onsrc,
pmic_offsrc[0], pmic_offsrc[1]);
}
static DEVICE_ATTR_RO(pwr_on_off_src);
static struct attribute *sec_pm_debug_attrs[] = {
&dev_attr_pwr_on_off_src.attr,
NULL
};
ATTRIBUTE_GROUPS(sec_pm_debug);
int main_pmic_init_debug_sysfs(struct device *sec_pm_dev)
{
int ret;
ret = sysfs_create_groups(&sec_pm_dev->kobj, sec_pm_debug_groups);
if (ret)
pr_err("%s: failed to create sysfs groups(%d)\n", __func__, ret);
return ret;
}
EXPORT_SYMBOL_GPL(main_pmic_init_debug_sysfs);
#endif /* CONFIG_SEC_PM_DEBUG */
static void s2mpu13_set_regulator_vol(struct s2mpu13_info *s2mpu13)
{
// s2mpu13_write_reg(s2mpu13->i2c, S2MPU13_PMIC_REG_B4M_OUT1, 0x20);
}
static void s2mpu13_set_dropout_vol(struct s2mpu13_info *s2mpu13)
{
s2mpu13_write_reg(s2mpu13->i2c, S2MPU13_PMIC_REG_B8M_OUT2, 0x58);
s2mpu13_write_reg(s2mpu13->i2c, S2MPU13_PMIC_REG_B9M_OUT2, 0x68);
s2mpu13_write_reg(s2mpu13->i2c, S2MPU13_PMIC_REG_B10M_OUT2, 0x64);
s2mpu13_write_reg(s2mpu13->i2c, S2MPU13_PMIC_REG_SEL_DVS_EN2M, 0x00);
s2mpu13_update_reg(s2mpu13->i2c, S2MPU13_PMIC_REG_SEL_DVS_EN3M, 0x00, 0x0F);
}
void s2mpu13_set_reg_changes(struct s2mpu13_info *s2mpu13)
{
u8 hw_chip_id = s2mpu13->iodev->pmic_rev & CHIP_ID_MASK;
/* Change min voltage and step for L1M in EVT0.1 (HW_REV = 0x02) */
if (hw_chip_id >= 0x02) {
regulators[S2MPU13_LDO1].min_uV = _LDO_MIN(2);
regulators[S2MPU13_LDO1].uV_step = _LDO_STEP(2);
}
}
static int s2mpu13_power_off_wa(void)
{
struct s2mpu13_info *s2mpu13 = s2mpu13_static_info;
int ret = 0;
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
uint8_t val = 0;
#endif
if (!s2mpu13)
return -ENODEV;
#if IS_ENABLED(CONFIG_EXYNOS_ACPM)
ret = exynos_acpm_read_reg(acpm_mfd_node, MAIN_CHANNEL, I2C_BASE_PM, 0x1B, &val);
if (ret) {
pr_err("%s: acpm ipc fail(%#x)\n", __func__, 0x1B);
return -EINVAL;
}
if ((val & 0x10) == 0x00) {
ret = exynos_acpm_update_reg(acpm_mfd_node, MAIN_CHANNEL, I2C_BASE_PM, 0x1B, 0x20, 0x20);
if (ret) {
pr_err("%s: acpm ipc fail(%#x)\n", __func__, 0x1B);
return -EINVAL;
}
ret = exynos_acpm_update_reg(acpm_mfd_node, MAIN_CHANNEL, I2C_BASE_PM, 0x19, 0x00, 0x0F);
if (ret) {
pr_err("%s: acpm ipc fail(%#x)\n", __func__, 0x19);
return -EINVAL;
}
ret = exynos_acpm_update_reg(acpm_mfd_node, MAIN_CHANNEL, I2C_BASE_PM, 0xCF, 0x04, 0x04);
if (ret) {
pr_err("%s: acpm ipc fail(%#x)\n", __func__, 0xCF);
return -EINVAL;
}
}
#endif
return ret;
}
static int s2mpu13_pmic_probe(struct platform_device *pdev)
{
struct s2mpu13_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct s2mpu13_platform_data *pdata = iodev->pdata;
struct regulator_config config = { };
struct s2mpu13_info *s2mpu13;
int irq_base, ret;
u32 i;
#if IS_ENABLED(CONFIG_SEC_PM_DEBUG)
u8 offsrc_val[2] = {0, };
#endif
pr_info("[PMIC] %s: start\n", __func__);
if (iodev->dev->of_node) {
ret = s2mpu13_pmic_dt_parse_pdata(iodev, pdata);
if (ret)
goto err_pdata;
}
if (!pdata) {
dev_err(pdev->dev.parent, "Platform data not supplied\n");
return -ENODEV;
}
s2mpu13 = devm_kzalloc(&pdev->dev, sizeof(struct s2mpu13_info),
GFP_KERNEL);
if (!s2mpu13)
return -ENOMEM;
irq_base = pdata->irq_base;
if (!irq_base) {
dev_err(&pdev->dev, "Failed to get irq base %d\n", irq_base);
return -ENODEV;
}
s2mpu13->iodev = iodev;
s2mpu13->i2c = iodev->pmic;
s2mpu13->gpio_i2c = iodev->gpio_i2c;
mutex_init(&s2mpu13->lock);
s2mpu13_static_info = s2mpu13;
platform_set_drvdata(pdev, s2mpu13);
/* Change min/max voltage and step */
s2mpu13_set_reg_changes(s2mpu13);
for (i = 0; i < pdata->num_rdata; i++) {
int id = pdata->regulators[i].id;
config.dev = &pdev->dev;
config.init_data = pdata->regulators[i].initdata;
config.driver_data = s2mpu13;
config.of_node = pdata->regulators[i].reg_node;
s2mpu13->opmode[id] = regulators[id].enable_mask;
s2mpu13->rdev[i] = devm_regulator_register(&pdev->dev,
&regulators[id], &config);
if (IS_ERR(s2mpu13->rdev[i])) {
ret = PTR_ERR(s2mpu13->rdev[i]);
dev_err(&pdev->dev, "regulator init failed for %d\n", i);
s2mpu13->rdev[i] = NULL;
goto err_s2mpu13_data;
}
}
s2mpu13->num_regulators = pdata->num_rdata;
ret = s2mpu13_set_sel_vgpio(s2mpu13, pdata);
if (ret < 0) {
pr_err("%s: s2mpu13_set_sel_vgpio fail\n", __func__);
goto err_s2mpu13_data;
}
ret = s2mpu13_set_interrupt(pdev, s2mpu13, irq_base);
if (ret < 0)
pr_err("%s: s2mpu13_set_interrupt fail\n", __func__);
ret = s2mpu13_oi_function(iodev);
if (ret < 0)
pr_err("%s: s2mpu13_oi_function fail\n", __func__);
#if IS_ENABLED(CONFIG_DRV_SAMSUNG_PMIC)
ret = s2mpu13_create_sysfs(s2mpu13);
if (ret < 0) {
pr_err("%s: s2mpu13_create_sysfs fail\n", __func__);
goto err_s2mpu13_data;
}
#endif
s2mpu13_set_regulator_vol(s2mpu13);
s2mpu13_set_dropout_vol(s2mpu13);
exynos_reboot_register_pmic_ops(s2mpu13_power_off_wa, NULL, NULL, s2mpu13_read_pwron_status);
#if IS_ENABLED(CONFIG_SEC_PM_DEBUG)
ret = s2mpu13_read_reg(s2mpu13->i2c, S2MPU13_PMIC_REG_PWRONSRC,
&pmic_onsrc);
if (ret)
dev_err(&pdev->dev, "failed to read PWRONSRC\n");
ret = s2mpu13_bulk_read(s2mpu13->i2c, S2MPU13_PMIC_REG_OFFSRC1, 2,
pmic_offsrc);
if (ret)
dev_err(&pdev->dev, "failed to read OFFSRC\n");
/* Clear OFFSRC1, OFFSRC2 register */
ret = s2mpu13_bulk_write(s2mpu13->i2c, S2MPU13_PMIC_REG_OFFSRC1, 2,
offsrc_val);
if (ret)
dev_err(&pdev->dev, "failed to write OFFSRC\n");
#endif /* CONFIG_SEC_PM_DEBUG */
pr_info("[PMIC] %s: end\n", __func__);
return 0;
err_s2mpu13_data:
mutex_destroy(&s2mpu13->lock);
err_pdata:
return ret;
}
static int s2mpu13_pmic_remove(struct platform_device *pdev)
{
struct s2mpu13_info *s2mpu13 = platform_get_drvdata(pdev);
#if IS_ENABLED(CONFIG_DRV_SAMSUNG_PMIC)
struct device *s2mpu13_pmic = s2mpu13->dev;
int i = 0;
/* Remove sysfs entries */
for (i = 0; i < ARRAY_SIZE(regulator_attr); i++)
device_remove_file(s2mpu13_pmic, &regulator_attr[i].dev_attr);
pmic_device_destroy(s2mpu13_pmic->devt);
#endif
mutex_destroy(&s2mpu13->lock);
return 0;
}
static void s2mpu13_pmic_shutdown(struct platform_device *pdev)
{
pr_info("%s\n", __func__);
#if IS_ENABLED(CONFIG_SEC_PM)
s2mpu13_set_instacok();
#endif /* CONFIG_SEC_PM */
}
#if IS_ENABLED(CONFIG_PM)
static int s2mpu13_pmic_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct s2mpu13_info *s2mpu13 = platform_get_drvdata(pdev);
int ret = 0;
pr_info("%s\n", __func__);
/* Off time reduction */
ret = s2mpu13_write_reg(s2mpu13->i2c, 0xA4, 0x00);
if (ret)
pr_err("%s: Failed to reduce off time(0xA4)\n", __func__);
ret = s2mpu13_write_reg(s2mpu13->i2c, 0xA5, 0x00);
if (ret)
pr_err("%s: Failed to reduce off time(0xA5)\n", __func__);
ret = s2mpu13_write_reg(s2mpu13->i2c, 0xA6, 0x00);
if (ret)
pr_err("%s: Failed to reduce off time(0xA6)\n", __func__);
ret = s2mpu13_write_reg(s2mpu13->i2c, 0xA7, 0x00);
if (ret)
pr_err("%s: Failed to reduce off time(0xA7)\n", __func__);
return 0;
}
static int s2mpu13_pmic_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct s2mpu13_info *s2mpu13 = platform_get_drvdata(pdev);
int ret = 0;
pr_info("%s\n", __func__);
/* Restore off time reduction */
ret = s2mpu13_write_reg(s2mpu13->i2c, 0xA4, 0x11);
if (ret)
pr_err("%s: Failed to reduce off time(0xA4)\n", __func__);
ret = s2mpu13_write_reg(s2mpu13->i2c, 0xA5, 0x13);
if (ret)
pr_err("%s: Failed to reduce off time(0xA5)\n", __func__);
ret = s2mpu13_write_reg(s2mpu13->i2c, 0xA6, 0x11);
if (ret)
pr_err("%s: Failed to reduce off time(0xA6)\n", __func__);
ret = s2mpu13_write_reg(s2mpu13->i2c, 0xA7, 0x10);
if (ret)
pr_err("%s: Failed to reduce off time(0xA7)\n", __func__);
return 0;
}
#else
#define s2mpu13_pmic_suspend NULL
#define s2mpu13_pmic_resume NULL
#endif /* CONFIG_PM */
const struct dev_pm_ops s2mpu13_pmic_pm = {
.suspend = s2mpu13_pmic_suspend,
.resume = s2mpu13_pmic_resume,
};
static const struct platform_device_id s2mpu13_pmic_id[] = {
{ "s2mpu13-regulator", 0},
{ },
};
MODULE_DEVICE_TABLE(platform, s2mpu13_pmic_id);
static struct platform_driver s2mpu13_pmic_driver = {
.driver = {
.name = "s2mpu13-regulator",
.owner = THIS_MODULE,
#if IS_ENABLED(CONFIG_PM)
.pm = &s2mpu13_pmic_pm,
#endif
.suppress_bind_attrs = true,
},
.probe = s2mpu13_pmic_probe,
.remove = s2mpu13_pmic_remove,
.shutdown = s2mpu13_pmic_shutdown,
.id_table = s2mpu13_pmic_id,
};
static int __init s2mpu13_pmic_init(void)
{
return platform_driver_register(&s2mpu13_pmic_driver);
}
subsys_initcall(s2mpu13_pmic_init);
static void __exit s2mpu13_pmic_exit(void)
{
platform_driver_unregister(&s2mpu13_pmic_driver);
}
module_exit(s2mpu13_pmic_exit);
/* Module information */
MODULE_AUTHOR("Samsung Electronics");
MODULE_DESCRIPTION("SAMSUNG S2MPU13 Regulator Driver");
MODULE_LICENSE("GPL");
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