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s2mps11.c
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/*
* s2mps11.c
*
* Copyright (c) 2012-2014 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.
*
* 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.
*
*/
#include <linux/bug.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/of.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/of_gpio.h>
#include <linux/mfd/samsung/core.h>
#include <linux/mfd/samsung/s2mps11.h>
#include <linux/mfd/samsung/s2mps13.h>
#include <linux/mfd/samsung/s2mps14.h>
#include <linux/mfd/samsung/s2mps15.h>
#include <linux/mfd/samsung/s2mpu02.h>
/* The highest number of possible regulators for supported devices. */
#define S2MPS_REGULATOR_MAX S2MPS13_REGULATOR_MAX
struct s2mps11_info {
int ramp_delay2;
int ramp_delay34;
int ramp_delay5;
int ramp_delay16;
int ramp_delay7810;
int ramp_delay9;
enum sec_device_type dev_type;
/*
* One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether
* the suspend mode was enabled.
*/
DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX);
/*
* Array (size: number of regulators) with GPIO-s for external
* sleep control.
*/
int *ext_control_gpio;
};
static int get_ramp_delay(int ramp_delay)
{
unsigned char cnt = 0;
ramp_delay /= 6250;
while (true) {
ramp_delay = ramp_delay >> 1;
if (ramp_delay == 0)
break;
cnt++;
}
if (cnt > 3)
cnt = 3;
return cnt;
}
static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
unsigned int ramp_delay = 0;
int old_volt, new_volt;
switch (rdev_get_id(rdev)) {
case S2MPS11_BUCK2:
ramp_delay = s2mps11->ramp_delay2;
break;
case S2MPS11_BUCK3:
case S2MPS11_BUCK4:
ramp_delay = s2mps11->ramp_delay34;
break;
case S2MPS11_BUCK5:
ramp_delay = s2mps11->ramp_delay5;
break;
case S2MPS11_BUCK6:
case S2MPS11_BUCK1:
ramp_delay = s2mps11->ramp_delay16;
break;
case S2MPS11_BUCK7:
case S2MPS11_BUCK8:
case S2MPS11_BUCK10:
ramp_delay = s2mps11->ramp_delay7810;
break;
case S2MPS11_BUCK9:
ramp_delay = s2mps11->ramp_delay9;
}
if (ramp_delay == 0)
ramp_delay = rdev->desc->ramp_delay;
old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
}
static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
{
struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
unsigned int ramp_enable = 1, enable_shift = 0;
int ret;
switch (rdev_get_id(rdev)) {
case S2MPS11_BUCK1:
if (ramp_delay > s2mps11->ramp_delay16)
s2mps11->ramp_delay16 = ramp_delay;
else
ramp_delay = s2mps11->ramp_delay16;
ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
break;
case S2MPS11_BUCK2:
enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
if (!ramp_delay) {
ramp_enable = 0;
break;
}
s2mps11->ramp_delay2 = ramp_delay;
ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
ramp_reg = S2MPS11_REG_RAMP;
break;
case S2MPS11_BUCK3:
enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
if (!ramp_delay) {
ramp_enable = 0;
break;
}
if (ramp_delay > s2mps11->ramp_delay34)
s2mps11->ramp_delay34 = ramp_delay;
else
ramp_delay = s2mps11->ramp_delay34;
ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
ramp_reg = S2MPS11_REG_RAMP;
break;
case S2MPS11_BUCK4:
enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
if (!ramp_delay) {
ramp_enable = 0;
break;
}
if (ramp_delay > s2mps11->ramp_delay34)
s2mps11->ramp_delay34 = ramp_delay;
else
ramp_delay = s2mps11->ramp_delay34;
ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
ramp_reg = S2MPS11_REG_RAMP;
break;
case S2MPS11_BUCK5:
s2mps11->ramp_delay5 = ramp_delay;
ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
break;
case S2MPS11_BUCK6:
enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
if (!ramp_delay) {
ramp_enable = 0;
break;
}
if (ramp_delay > s2mps11->ramp_delay16)
s2mps11->ramp_delay16 = ramp_delay;
else
ramp_delay = s2mps11->ramp_delay16;
ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
break;
case S2MPS11_BUCK7:
case S2MPS11_BUCK8:
case S2MPS11_BUCK10:
if (ramp_delay > s2mps11->ramp_delay7810)
s2mps11->ramp_delay7810 = ramp_delay;
else
ramp_delay = s2mps11->ramp_delay7810;
ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
break;
case S2MPS11_BUCK9:
s2mps11->ramp_delay9 = ramp_delay;
ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
break;
default:
return 0;
}
if (!ramp_enable)
goto ramp_disable;
/* Ramp delay can be enabled/disabled only for buck[2346] */
if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 &&
rdev_get_id(rdev) <= S2MPS11_BUCK4) ||
rdev_get_id(rdev) == S2MPS11_BUCK6) {
ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
1 << enable_shift, 1 << enable_shift);
if (ret) {
dev_err(&rdev->dev, "failed to enable ramp rate\n");
return ret;
}
}
ramp_val = get_ramp_delay(ramp_delay);
return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
ramp_val << ramp_shift);
ramp_disable:
return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
1 << enable_shift, 0);
}
static const struct regulator_ops s2mps11_ldo_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops s2mps11_buck_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel,
.set_ramp_delay = s2mps11_set_ramp_delay,
};
#define regulator_desc_s2mps11_ldo(num, step) { \
.name = "LDO"#num, \
.id = S2MPS11_LDO##num, \
.ops = &s2mps11_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.ramp_delay = RAMP_DELAY_12_MVUS, \
.min_uV = MIN_800_MV, \
.uV_step = step, \
.n_voltages = S2MPS11_LDO_N_VOLTAGES, \
.vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
.vsel_mask = S2MPS11_LDO_VSEL_MASK, \
.enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
.enable_mask = S2MPS11_ENABLE_MASK \
}
#define regulator_desc_s2mps11_buck1_4(num) { \
.name = "BUCK"#num, \
.id = S2MPS11_BUCK##num, \
.ops = &s2mps11_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MIN_600_MV, \
.uV_step = STEP_6_25_MV, \
.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
.ramp_delay = S2MPS11_RAMP_DELAY, \
.vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
.vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
.enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
.enable_mask = S2MPS11_ENABLE_MASK \
}
#define regulator_desc_s2mps11_buck5 { \
.name = "BUCK5", \
.id = S2MPS11_BUCK5, \
.ops = &s2mps11_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MIN_600_MV, \
.uV_step = STEP_6_25_MV, \
.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
.ramp_delay = S2MPS11_RAMP_DELAY, \
.vsel_reg = S2MPS11_REG_B5CTRL2, \
.vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
.enable_reg = S2MPS11_REG_B5CTRL1, \
.enable_mask = S2MPS11_ENABLE_MASK \
}
#define regulator_desc_s2mps11_buck67810(num, min, step) { \
.name = "BUCK"#num, \
.id = S2MPS11_BUCK##num, \
.ops = &s2mps11_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = min, \
.uV_step = step, \
.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
.ramp_delay = S2MPS11_RAMP_DELAY, \
.vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
.vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
.enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
.enable_mask = S2MPS11_ENABLE_MASK \
}
#define regulator_desc_s2mps11_buck9 { \
.name = "BUCK9", \
.id = S2MPS11_BUCK9, \
.ops = &s2mps11_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MIN_3000_MV, \
.uV_step = STEP_25_MV, \
.n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \
.ramp_delay = S2MPS11_RAMP_DELAY, \
.vsel_reg = S2MPS11_REG_B9CTRL2, \
.vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \
.enable_reg = S2MPS11_REG_B9CTRL1, \
.enable_mask = S2MPS11_ENABLE_MASK \
}
static const struct regulator_desc s2mps11_regulators[] = {
regulator_desc_s2mps11_ldo(1, STEP_25_MV),
regulator_desc_s2mps11_ldo(2, STEP_50_MV),
regulator_desc_s2mps11_ldo(3, STEP_50_MV),
regulator_desc_s2mps11_ldo(4, STEP_50_MV),
regulator_desc_s2mps11_ldo(5, STEP_50_MV),
regulator_desc_s2mps11_ldo(6, STEP_25_MV),
regulator_desc_s2mps11_ldo(7, STEP_50_MV),
regulator_desc_s2mps11_ldo(8, STEP_50_MV),
regulator_desc_s2mps11_ldo(9, STEP_50_MV),
regulator_desc_s2mps11_ldo(10, STEP_50_MV),
regulator_desc_s2mps11_ldo(11, STEP_25_MV),
regulator_desc_s2mps11_ldo(12, STEP_50_MV),
regulator_desc_s2mps11_ldo(13, STEP_50_MV),
regulator_desc_s2mps11_ldo(14, STEP_50_MV),
regulator_desc_s2mps11_ldo(15, STEP_50_MV),
regulator_desc_s2mps11_ldo(16, STEP_50_MV),
regulator_desc_s2mps11_ldo(17, STEP_50_MV),
regulator_desc_s2mps11_ldo(18, STEP_50_MV),
regulator_desc_s2mps11_ldo(19, STEP_50_MV),
regulator_desc_s2mps11_ldo(20, STEP_50_MV),
regulator_desc_s2mps11_ldo(21, STEP_50_MV),
regulator_desc_s2mps11_ldo(22, STEP_25_MV),
regulator_desc_s2mps11_ldo(23, STEP_25_MV),
regulator_desc_s2mps11_ldo(24, STEP_50_MV),
regulator_desc_s2mps11_ldo(25, STEP_50_MV),
regulator_desc_s2mps11_ldo(26, STEP_50_MV),
regulator_desc_s2mps11_ldo(27, STEP_25_MV),
regulator_desc_s2mps11_ldo(28, STEP_50_MV),
regulator_desc_s2mps11_ldo(29, STEP_50_MV),
regulator_desc_s2mps11_ldo(30, STEP_50_MV),
regulator_desc_s2mps11_ldo(31, STEP_50_MV),
regulator_desc_s2mps11_ldo(32, STEP_50_MV),
regulator_desc_s2mps11_ldo(33, STEP_50_MV),
regulator_desc_s2mps11_ldo(34, STEP_50_MV),
regulator_desc_s2mps11_ldo(35, STEP_50_MV),
regulator_desc_s2mps11_ldo(36, STEP_50_MV),
regulator_desc_s2mps11_ldo(37, STEP_50_MV),
regulator_desc_s2mps11_ldo(38, STEP_50_MV),
regulator_desc_s2mps11_buck1_4(1),
regulator_desc_s2mps11_buck1_4(2),
regulator_desc_s2mps11_buck1_4(3),
regulator_desc_s2mps11_buck1_4(4),
regulator_desc_s2mps11_buck5,
regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV),
regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_6_25_MV),
regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_6_25_MV),
regulator_desc_s2mps11_buck9,
regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV),
};
static const struct regulator_ops s2mps14_reg_ops;
#define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \
.name = "LDO"#num, \
.id = S2MPS13_LDO##num, \
.ops = &s2mps14_reg_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = min, \
.uV_step = step, \
.linear_min_sel = min_sel, \
.n_voltages = S2MPS14_LDO_N_VOLTAGES, \
.vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \
.vsel_mask = S2MPS14_LDO_VSEL_MASK, \
.enable_reg = S2MPS13_REG_L1CTRL + num - 1, \
.enable_mask = S2MPS14_ENABLE_MASK \
}
#define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \
.name = "BUCK"#num, \
.id = S2MPS13_BUCK##num, \
.ops = &s2mps14_reg_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = min, \
.uV_step = step, \
.linear_min_sel = min_sel, \
.n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
.ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
.vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \
.vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
.enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
.enable_mask = S2MPS14_ENABLE_MASK \
}
#define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \
.name = "BUCK"#num, \
.id = S2MPS13_BUCK##num, \
.ops = &s2mps14_reg_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = min, \
.uV_step = step, \
.linear_min_sel = min_sel, \
.n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
.ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
.vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \
.vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
.enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
.enable_mask = S2MPS14_ENABLE_MASK \
}
#define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \
.name = "BUCK"#num, \
.id = S2MPS13_BUCK##num, \
.ops = &s2mps14_reg_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = min, \
.uV_step = step, \
.linear_min_sel = min_sel, \
.n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
.ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
.vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \
.vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
.enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \
.enable_mask = S2MPS14_ENABLE_MASK \
}
static const struct regulator_desc s2mps13_regulators[] = {
regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10),
regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10),
regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10),
regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00),
regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08),
regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C),
regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10),
regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10),
regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10),
regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10),
regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10),
regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10),
regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10),
regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20),
regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20),
regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10),
};
static int s2mps14_regulator_enable(struct regulator_dev *rdev)
{
struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
unsigned int val;
switch (s2mps11->dev_type) {
case S2MPS13X:
case S2MPS14X:
if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
val = S2MPS14_ENABLE_SUSPEND;
else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)]))
val = S2MPS14_ENABLE_EXT_CONTROL;
else
val = rdev->desc->enable_mask;
break;
case S2MPU02:
if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
val = S2MPU02_ENABLE_SUSPEND;
else
val = rdev->desc->enable_mask;
break;
default:
return -EINVAL;
}
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
}
static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
{
int ret;
unsigned int val, state;
struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
int rdev_id = rdev_get_id(rdev);
/* Below LDO should be always on or does not support suspend mode. */
switch (s2mps11->dev_type) {
case S2MPS13X:
case S2MPS14X:
switch (rdev_id) {
case S2MPS14_LDO3:
return 0;
default:
state = S2MPS14_ENABLE_SUSPEND;
break;
}
break;
case S2MPU02:
switch (rdev_id) {
case S2MPU02_LDO13:
case S2MPU02_LDO14:
case S2MPU02_LDO15:
case S2MPU02_LDO17:
case S2MPU02_BUCK7:
state = S2MPU02_DISABLE_SUSPEND;
break;
default:
state = S2MPU02_ENABLE_SUSPEND;
break;
}
break;
default:
return -EINVAL;
}
ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
if (ret < 0)
return ret;
set_bit(rdev_get_id(rdev), s2mps11->suspend_state);
/*
* Don't enable suspend mode if regulator is already disabled because
* this would effectively for a short time turn on the regulator after
* resuming.
* However we still want to toggle the suspend_state bit for regulator
* in case if it got enabled before suspending the system.
*/
if (!(val & rdev->desc->enable_mask))
return 0;
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, state);
}
static const struct regulator_ops s2mps14_reg_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = s2mps14_regulator_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_suspend_disable = s2mps14_regulator_set_suspend_disable,
};
#define regulator_desc_s2mps14_ldo(num, min, step) { \
.name = "LDO"#num, \
.id = S2MPS14_LDO##num, \
.ops = &s2mps14_reg_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = min, \
.uV_step = step, \
.n_voltages = S2MPS14_LDO_N_VOLTAGES, \
.vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \
.vsel_mask = S2MPS14_LDO_VSEL_MASK, \
.enable_reg = S2MPS14_REG_L1CTRL + num - 1, \
.enable_mask = S2MPS14_ENABLE_MASK \
}
#define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \
.name = "BUCK"#num, \
.id = S2MPS14_BUCK##num, \
.ops = &s2mps14_reg_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = min, \
.uV_step = step, \
.n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
.linear_min_sel = min_sel, \
.ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \
.vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \
.vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
.enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \
.enable_mask = S2MPS14_ENABLE_MASK \
}
static const struct regulator_desc s2mps14_regulators[] = {
regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV),
regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV),
regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV),
regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV),
regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV),
regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV),
regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV),
regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV,
S2MPS14_BUCK1235_START_SEL),
regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV,
S2MPS14_BUCK1235_START_SEL),
regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV,
S2MPS14_BUCK1235_START_SEL),
regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV,
S2MPS14_BUCK4_START_SEL),
regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV,
S2MPS14_BUCK1235_START_SEL),
};
static const struct regulator_ops s2mps15_reg_ldo_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static const struct regulator_ops s2mps15_reg_buck_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
#define regulator_desc_s2mps15_ldo(num, range) { \
.name = "LDO"#num, \
.id = S2MPS15_LDO##num, \
.ops = &s2mps15_reg_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.linear_ranges = range, \
.n_linear_ranges = ARRAY_SIZE(range), \
.n_voltages = S2MPS15_LDO_N_VOLTAGES, \
.vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \
.vsel_mask = S2MPS15_LDO_VSEL_MASK, \
.enable_reg = S2MPS15_REG_L1CTRL + num - 1, \
.enable_mask = S2MPS15_ENABLE_MASK \
}
#define regulator_desc_s2mps15_buck(num, range) { \
.name = "BUCK"#num, \
.id = S2MPS15_BUCK##num, \
.ops = &s2mps15_reg_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.linear_ranges = range, \
.n_linear_ranges = ARRAY_SIZE(range), \
.ramp_delay = 12500, \
.n_voltages = S2MPS15_BUCK_N_VOLTAGES, \
.vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \
.vsel_mask = S2MPS15_BUCK_VSEL_MASK, \
.enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \
.enable_mask = S2MPS15_ENABLE_MASK \
}
/* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */
static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = {
REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000),
};
/* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */
static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000),
};
/* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */
static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = {
REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500),
};
/* voltage range for s2mps15 LDO 7, 8, 9 and 10 */
static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = {
REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000),
};
/* voltage range for s2mps15 LDO 1 */
static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = {
REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500),
};
/* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */
static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = {
REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250),
};
/* voltage range for s2mps15 BUCK 8, 9 and 10 */
static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = {
REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500),
};
static const struct regulator_desc s2mps15_regulators[] = {
regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5),
regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2),
regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1),
regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3),
regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1),
regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2),
regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4),
regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4),
regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4),
regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4),
regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3),
regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3),
regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3),
regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2),
regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1),
regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1),
regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2),
regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1),
regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2),
regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1),
regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2),
regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3),
regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1),
regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2),
regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2),
regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3),
regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1),
regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1),
regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1),
regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1),
regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1),
regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1),
regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1),
regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1),
regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2),
regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2),
regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2),
};
static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
struct regulator_dev *rdev)
{
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL);
}
static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,
struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
{
int *gpio = s2mps11->ext_control_gpio;
unsigned int i;
unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11,
S2MPS14_LDO12 };
for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) {
unsigned int reg = valid_regulators[i];
if (!rdata[reg].init_data || !rdata[reg].of_node)
continue;
gpio[reg] = of_get_named_gpio(rdata[reg].of_node,
"samsung,ext-control-gpios", 0);
if (gpio_is_valid(gpio[reg]))
dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n",
gpio[reg], reg, rdata[reg].name);
}
}
static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
struct of_regulator_match *rdata, struct s2mps11_info *s2mps11,
unsigned int rdev_num)
{
struct device_node *reg_np;
reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
if (!reg_np) {
dev_err(&pdev->dev, "could not find regulators sub-node\n");
return -EINVAL;
}
of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num);
if (s2mps11->dev_type == S2MPS14X)
s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);
of_node_put(reg_np);
return 0;
}
static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
{
unsigned int ramp_val, ramp_shift, ramp_reg;
switch (rdev_get_id(rdev)) {
case S2MPU02_BUCK1:
ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
break;
case S2MPU02_BUCK2:
ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
break;
case S2MPU02_BUCK3:
ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
break;
case S2MPU02_BUCK4:
ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
break;
default:
return 0;
}
ramp_reg = S2MPU02_REG_RAMP1;
ramp_val = get_ramp_delay(ramp_delay);
return regmap_update_bits(rdev->regmap, ramp_reg,
S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
ramp_val << ramp_shift);
}
static const struct regulator_ops s2mpu02_ldo_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = s2mps14_regulator_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_suspend_disable = s2mps14_regulator_set_suspend_disable,
};
static const struct regulator_ops s2mpu02_buck_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = s2mps14_regulator_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_suspend_disable = s2mps14_regulator_set_suspend_disable,
.set_ramp_delay = s2mpu02_set_ramp_delay,
};
#define regulator_desc_s2mpu02_ldo1(num) { \
.name = "LDO"#num, \
.id = S2MPU02_LDO##num, \
.ops = &s2mpu02_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = S2MPU02_LDO_MIN_900MV, \
.uV_step = S2MPU02_LDO_STEP_12_5MV, \
.linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
.n_voltages = S2MPU02_LDO_N_VOLTAGES, \
.vsel_reg = S2MPU02_REG_L1CTRL, \
.vsel_mask = S2MPU02_LDO_VSEL_MASK, \
.enable_reg = S2MPU02_REG_L1CTRL, \
.enable_mask = S2MPU02_ENABLE_MASK \
}
#define regulator_desc_s2mpu02_ldo2(num) { \
.name = "LDO"#num, \
.id = S2MPU02_LDO##num, \
.ops = &s2mpu02_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = S2MPU02_LDO_MIN_1050MV, \
.uV_step = S2MPU02_LDO_STEP_25MV, \
.linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
.n_voltages = S2MPU02_LDO_N_VOLTAGES, \
.vsel_reg = S2MPU02_REG_L2CTRL1, \
.vsel_mask = S2MPU02_LDO_VSEL_MASK, \
.enable_reg = S2MPU02_REG_L2CTRL1, \
.enable_mask = S2MPU02_ENABLE_MASK \
}
#define regulator_desc_s2mpu02_ldo3(num) { \
.name = "LDO"#num, \
.id = S2MPU02_LDO##num, \
.ops = &s2mpu02_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = S2MPU02_LDO_MIN_900MV, \
.uV_step = S2MPU02_LDO_STEP_12_5MV, \
.linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
.n_voltages = S2MPU02_LDO_N_VOLTAGES, \
.vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
.vsel_mask = S2MPU02_LDO_VSEL_MASK, \
.enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
.enable_mask = S2MPU02_ENABLE_MASK \
}
#define regulator_desc_s2mpu02_ldo4(num) { \
.name = "LDO"#num, \
.id = S2MPU02_LDO##num, \
.ops = &s2mpu02_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = S2MPU02_LDO_MIN_1050MV, \
.uV_step = S2MPU02_LDO_STEP_25MV, \
.linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
.n_voltages = S2MPU02_LDO_N_VOLTAGES, \
.vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
.vsel_mask = S2MPU02_LDO_VSEL_MASK, \
.enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
.enable_mask = S2MPU02_ENABLE_MASK \
}
#define regulator_desc_s2mpu02_ldo5(num) { \
.name = "LDO"#num, \
.id = S2MPU02_LDO##num, \
.ops = &s2mpu02_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = S2MPU02_LDO_MIN_1600MV, \
.uV_step = S2MPU02_LDO_STEP_50MV, \
.linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \
.n_voltages = S2MPU02_LDO_N_VOLTAGES, \
.vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
.vsel_mask = S2MPU02_LDO_VSEL_MASK, \
.enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
.enable_mask = S2MPU02_ENABLE_MASK \
}
#define regulator_desc_s2mpu02_buck1234(num) { \
.name = "BUCK"#num, \
.id = S2MPU02_BUCK##num, \
.ops = &s2mpu02_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = S2MPU02_BUCK1234_MIN_600MV, \
.uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \
.n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
.linear_min_sel = S2MPU02_BUCK1234_START_SEL, \
.ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \