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linux/drivers/regulator/bd718x7-regulator.c

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// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 ROHM Semiconductors
// bd71837-regulator.c ROHM BD71837MWV/BD71847MWV regulator driver
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mfd/rohm-bd718x7.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
/*
* BUCK1/2/3/4
* BUCK1RAMPRATE[1:0] BUCK1 DVS ramp rate setting
* 00: 10.00mV/usec 10mV 1uS
* 01: 5.00mV/usec 10mV 2uS
* 10: 2.50mV/usec 10mV 4uS
* 11: 1.25mV/usec 10mV 8uS
*/
static int bd718xx_buck1234_set_ramp_delay(struct regulator_dev *rdev,
int ramp_delay)
{
int id = rdev_get_id(rdev);
unsigned int ramp_value;
dev_dbg(&rdev->dev, "Buck[%d] Set Ramp = %d\n", id + 1,
ramp_delay);
switch (ramp_delay) {
case 1 ... 1250:
ramp_value = BUCK_RAMPRATE_1P25MV;
break;
case 1251 ... 2500:
ramp_value = BUCK_RAMPRATE_2P50MV;
break;
case 2501 ... 5000:
ramp_value = BUCK_RAMPRATE_5P00MV;
break;
case 5001 ... 10000:
ramp_value = BUCK_RAMPRATE_10P00MV;
break;
default:
ramp_value = BUCK_RAMPRATE_10P00MV;
dev_err(&rdev->dev,
"%s: ramp_delay: %d not supported, setting 10000mV//us\n",
rdev->desc->name, ramp_delay);
}
return regmap_update_bits(rdev->regmap, BD718XX_REG_BUCK1_CTRL + id,
BUCK_RAMPRATE_MASK, ramp_value << 6);
}
/*
* On BD71837 (not on BD71847, BD71850, ...)
* Bucks 1 to 4 support DVS. PWM mode is used when voltage is changed.
* Bucks 5 to 8 and LDOs can use PFM and must be disabled when voltage
* is changed. Hence we return -EBUSY for these if voltage is changed
* when BUCK/LDO is enabled.
*
* On BD71847, BD71850, ... The LDO voltage can be changed when LDO is
* enabled. But if voltage is increased the LDO power-good monitoring
* must be disabled for the duration of changing + 1mS to ensure voltage
* has reached the higher level before HW does next under voltage detection
* cycle.
*/
static int bd71837_set_voltage_sel_restricted(struct regulator_dev *rdev,
unsigned int sel)
{
if (regulator_is_enabled_regmap(rdev))
return -EBUSY;
return regulator_set_voltage_sel_regmap(rdev, sel);
}
static void voltage_change_done(struct regulator_dev *rdev, unsigned int sel,
unsigned int *mask)
{
int ret;
if (*mask) {
/*
* Let's allow scheduling as we use I2C anyways. We just need to
* guarantee minimum of 1ms sleep - it shouldn't matter if we
* exceed it due to the scheduling.
*/
msleep(1);
/*
* Note for next hacker. The PWRGOOD should not be masked on
* BD71847 so we will just unconditionally enable detection
* when voltage is set.
* If someone want's to disable PWRGOOD he must implement
* caching and restoring the old value here. I am not
* aware of such use-cases so for the sake of the simplicity
* we just always enable PWRGOOD here.
*/
ret = regmap_update_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2,
*mask, 0);
if (ret)
dev_err(&rdev->dev,
"Failed to re-enable voltage monitoring (%d)\n",
ret);
}
}
static int voltage_change_prepare(struct regulator_dev *rdev, unsigned int sel,
unsigned int *mask)
{
int ret;
*mask = 0;
if (regulator_is_enabled_regmap(rdev)) {
int now, new;
now = rdev->desc->ops->get_voltage_sel(rdev);
if (now < 0)
return now;
now = rdev->desc->ops->list_voltage(rdev, now);
if (now < 0)
return now;
new = rdev->desc->ops->list_voltage(rdev, sel);
if (new < 0)
return new;
/*
* If we increase LDO voltage when LDO is enabled we need to
* disable the power-good detection until voltage has reached
* the new level. According to HW colleagues the maximum time
* it takes is 1000us. I assume that on systems with light load
* this might be less - and we could probably use DT to give
* system specific delay value if performance matters.
*
* Well, knowing we use I2C here and can add scheduling delays
* I don't think it is worth the hassle and I just add fixed
* 1ms sleep here (and allow scheduling). If this turns out to
* be a problem we can change it to delay and make the delay
* time configurable.
*/
if (new > now) {
int ldo_offset = rdev->desc->id - BD718XX_LDO1;
*mask = BD718XX_LDO1_VRMON80 << ldo_offset;
ret = regmap_update_bits(rdev->regmap,
BD718XX_REG_MVRFLTMASK2,
*mask, *mask);
if (ret) {
dev_err(&rdev->dev,
"Failed to stop voltage monitoring\n");
return ret;
}
}
}
return 0;
}
static int bd718xx_set_voltage_sel_restricted(struct regulator_dev *rdev,
unsigned int sel)
{
int ret;
int mask;
ret = voltage_change_prepare(rdev, sel, &mask);
if (ret)
return ret;
ret = regulator_set_voltage_sel_regmap(rdev, sel);
voltage_change_done(rdev, sel, &mask);
return ret;
}
static int bd718xx_set_voltage_sel_pickable_restricted(
struct regulator_dev *rdev, unsigned int sel)
{
int ret;
int mask;
ret = voltage_change_prepare(rdev, sel, &mask);
if (ret)
return ret;
ret = regulator_set_voltage_sel_pickable_regmap(rdev, sel);
voltage_change_done(rdev, sel, &mask);
return ret;
}
static int bd71837_set_voltage_sel_pickable_restricted(
struct regulator_dev *rdev, unsigned int sel)
{
if (regulator_is_enabled_regmap(rdev))
return -EBUSY;
return regulator_set_voltage_sel_pickable_regmap(rdev, sel);
}
static const struct regulator_ops bd718xx_pickable_range_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_pickable_linear_range,
.set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted,
.get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
};
static const struct regulator_ops bd71837_pickable_range_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_pickable_linear_range,
.set_voltage_sel = bd71837_set_voltage_sel_pickable_restricted,
.get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
};
static const struct regulator_ops bd718xx_pickable_range_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_pickable_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_pickable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops bd71837_pickable_range_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_pickable_linear_range,
.set_voltage_sel = bd71837_set_voltage_sel_pickable_restricted,
.get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops bd71837_ldo_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = bd71837_set_voltage_sel_restricted,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops bd718xx_ldo_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = bd718xx_set_voltage_sel_restricted,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops bd71837_ldo_regulator_nolinear_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.set_voltage_sel = bd71837_set_voltage_sel_restricted,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops bd718xx_ldo_regulator_nolinear_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.set_voltage_sel = bd718xx_set_voltage_sel_restricted,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops bd718xx_buck_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops bd71837_buck_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = bd71837_set_voltage_sel_restricted,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops bd718xx_buck_regulator_nolinear_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops bd71837_buck_regulator_nolinear_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.set_voltage_sel = bd718xx_set_voltage_sel_restricted,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops bd718xx_dvs_buck_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = bd718xx_buck1234_set_ramp_delay,
};
/*
* BD71837 BUCK1/2/3/4
* BD71847 BUCK1/2
* 0.70 to 1.30V (10mV step)
*/
static const struct linear_range bd718xx_dvs_buck_volts[] = {
REGULATOR_LINEAR_RANGE(700000, 0x00, 0x3C, 10000),
REGULATOR_LINEAR_RANGE(1300000, 0x3D, 0x3F, 0),
};
/*
* BD71837 BUCK5
* 0.7V to 1.35V (range 0)
* and
* 0.675 to 1.325 (range 1)
*/
static const struct linear_range bd71837_buck5_volts[] = {
/* Ranges when VOLT_SEL bit is 0 */
REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000),
REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000),
REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000),
/* Ranges when VOLT_SEL bit is 1 */
REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000),
REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000),
REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000),
};
/*
* Range selector for first 3 linear ranges is 0x0
* and 0x1 for last 3 ranges.
*/
static const unsigned int bd71837_buck5_volt_range_sel[] = {
0x0, 0x0, 0x0, 0x80, 0x80, 0x80
};
/*
* BD71847 BUCK3
*/
static const struct linear_range bd71847_buck3_volts[] = {
/* Ranges when VOLT_SEL bits are 00 */
REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000),
REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000),
REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000),
/* Ranges when VOLT_SEL bits are 01 */
REGULATOR_LINEAR_RANGE(550000, 0x0, 0x7, 50000),
/* Ranges when VOLT_SEL bits are 11 */
REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000),
REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000),
REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000),
};
static const unsigned int bd71847_buck3_volt_range_sel[] = {
0x0, 0x0, 0x0, 0x40, 0x80, 0x80, 0x80
};
static const struct linear_range bd71847_buck4_volts[] = {
REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000),
REGULATOR_LINEAR_RANGE(2600000, 0x00, 0x03, 100000),
};
static const unsigned int bd71847_buck4_volt_range_sel[] = { 0x0, 0x40 };
/*
* BUCK6
* 3.0V to 3.3V (step 100mV)
*/
static const struct linear_range bd71837_buck6_volts[] = {
REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000),
};
/*
* BD71837 BUCK7
* BD71847 BUCK5
* 000 = 1.605V
* 001 = 1.695V
* 010 = 1.755V
* 011 = 1.8V (Initial)
* 100 = 1.845V
* 101 = 1.905V
* 110 = 1.95V
* 111 = 1.995V
*/
static const unsigned int bd718xx_3rd_nodvs_buck_volts[] = {
1605000, 1695000, 1755000, 1800000, 1845000, 1905000, 1950000, 1995000
};
/*
* BUCK8
* 0.8V to 1.40V (step 10mV)
*/
static const struct linear_range bd718xx_4th_nodvs_buck_volts[] = {
REGULATOR_LINEAR_RANGE(800000, 0x00, 0x3C, 10000),
};
/*
* LDO1
* 3.0 to 3.3V (100mV step)
*/
static const struct linear_range bd718xx_ldo1_volts[] = {
REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000),
REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000),
};
static const unsigned int bd718xx_ldo1_volt_range_sel[] = { 0x0, 0x20 };
/*
* LDO2
* 0.8 or 0.9V
*/
static const unsigned int ldo_2_volts[] = {
900000, 800000
};
/*
* LDO3
* 1.8 to 3.3V (100mV step)
*/
static const struct linear_range bd718xx_ldo3_volts[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000),
};
/*
* LDO4
* 0.9 to 1.8V (100mV step)
*/
static const struct linear_range bd718xx_ldo4_volts[] = {
REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000),
};
/*
* LDO5 for BD71837
* 1.8 to 3.3V (100mV step)
*/
static const struct linear_range bd71837_ldo5_volts[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000),
};
/*
* LDO5 for BD71837
* 1.8 to 3.3V (100mV step)
*/
static const struct linear_range bd71847_ldo5_volts[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000),
REGULATOR_LINEAR_RANGE(800000, 0x00, 0x0F, 100000),
};
static const unsigned int bd71847_ldo5_volt_range_sel[] = { 0x0, 0x20 };
/*
* LDO6
* 0.9 to 1.8V (100mV step)
*/
static const struct linear_range bd718xx_ldo6_volts[] = {
REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000),
};
/*
* LDO7
* 1.8 to 3.3V (100mV step)
*/
static const struct linear_range bd71837_ldo7_volts[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000),
};
struct reg_init {
unsigned int reg;
unsigned int mask;
unsigned int val;
};
struct bd718xx_regulator_data {
struct regulator_desc desc;
const struct rohm_dvs_config dvs;
const struct reg_init init;
const struct reg_init *additional_inits;
int additional_init_amnt;
};
/*
* There is a HW quirk in BD71837. The shutdown sequence timings for
* bucks/LDOs which are controlled via register interface are changed.
* At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the
* beginning of shut-down sequence. As bucks 6 and 7 are parent
* supplies for LDO5 and LDO6 - this causes LDO5/6 voltage
* monitoring to errorneously detect under voltage and force PMIC to
* emergency state instead of poweroff. In order to avoid this we
* disable voltage monitoring for LDO5 and LDO6
*/
static const struct reg_init bd71837_ldo5_inits[] = {
{
.reg = BD718XX_REG_MVRFLTMASK2,
.mask = BD718XX_LDO5_VRMON80,
.val = BD718XX_LDO5_VRMON80,
},
};
static const struct reg_init bd71837_ldo6_inits[] = {
{
.reg = BD718XX_REG_MVRFLTMASK2,
.mask = BD718XX_LDO6_VRMON80,
.val = BD718XX_LDO6_VRMON80,
},
};
static int buck_set_hw_dvs_levels(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *cfg)
{
struct bd718xx_regulator_data *data;
data = container_of(desc, struct bd718xx_regulator_data, desc);
return rohm_regulator_set_dvs_levels(&data->dvs, np, desc, cfg->regmap);
}
static const struct bd718xx_regulator_data bd71847_regulators[] = {
{
.desc = {
.name = "buck1",
.of_match = of_match_ptr("BUCK1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK1,
.ops = &bd718xx_dvs_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges =
ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD718XX_REG_BUCK1_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND,
.run_reg = BD718XX_REG_BUCK1_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
.idle_reg = BD718XX_REG_BUCK1_VOLT_IDLE,
.idle_mask = DVS_BUCK_RUN_MASK,
.suspend_reg = BD718XX_REG_BUCK1_VOLT_SUSP,
.suspend_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD718XX_REG_BUCK1_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck2",
.of_match = of_match_ptr("BUCK2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK2,
.ops = &bd718xx_dvs_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD718XX_REG_BUCK2_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE,
.run_reg = BD718XX_REG_BUCK2_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
.idle_reg = BD718XX_REG_BUCK2_VOLT_IDLE,
.idle_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD718XX_REG_BUCK2_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck3",
.of_match = of_match_ptr("BUCK3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK3,
.ops = &bd718xx_pickable_range_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71847_BUCK3_VOLTAGE_NUM,
.linear_ranges = bd71847_buck3_volts,
.n_linear_ranges =
ARRAY_SIZE(bd71847_buck3_volts),
.vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_1ST_NODVS_BUCK_MASK,
.vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT,
.vsel_range_mask = BD71847_BUCK3_RANGE_MASK,
.linear_range_selectors = bd71847_buck3_volt_range_sel,
.enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck4",
.of_match = of_match_ptr("BUCK4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK4,
.ops = &bd718xx_pickable_range_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71847_BUCK4_VOLTAGE_NUM,
.linear_ranges = bd71847_buck4_volts,
.n_linear_ranges =
ARRAY_SIZE(bd71847_buck4_volts),
.enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL,
.vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT,
.vsel_mask = BD71847_BUCK4_MASK,
.vsel_range_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT,
.vsel_range_mask = BD71847_BUCK4_RANGE_MASK,
.linear_range_selectors = bd71847_buck4_volt_range_sel,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck5",
.of_match = of_match_ptr("BUCK5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK5,
.ops = &bd718xx_buck_regulator_nolinear_ops,
.type = REGULATOR_VOLTAGE,
.volt_table = &bd718xx_3rd_nodvs_buck_volts[0],
.n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts),
.vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK,
.enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck6",
.of_match = of_match_ptr("BUCK6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK6,
.ops = &bd718xx_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_4th_nodvs_buck_volts,
.n_linear_ranges =
ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts),
.vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK,
.enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "ldo1",
.of_match = of_match_ptr("LDO1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO1,
.ops = &bd718xx_pickable_range_ldo_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO1_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo1_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts),
.vsel_reg = BD718XX_REG_LDO1_VOLT,
.vsel_mask = BD718XX_LDO1_MASK,
.vsel_range_reg = BD718XX_REG_LDO1_VOLT,
.vsel_range_mask = BD718XX_LDO1_RANGE_MASK,
.linear_range_selectors = bd718xx_ldo1_volt_range_sel,
.enable_reg = BD718XX_REG_LDO1_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO1_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo2",
.of_match = of_match_ptr("LDO2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO2,
.ops = &bd718xx_ldo_regulator_nolinear_ops,
.type = REGULATOR_VOLTAGE,
.volt_table = &ldo_2_volts[0],
.vsel_reg = BD718XX_REG_LDO2_VOLT,
.vsel_mask = BD718XX_LDO2_MASK,
.n_voltages = ARRAY_SIZE(ldo_2_volts),
.enable_reg = BD718XX_REG_LDO2_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO2_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo3",
.of_match = of_match_ptr("LDO3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO3,
.ops = &bd718xx_ldo_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO3_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo3_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts),
.vsel_reg = BD718XX_REG_LDO3_VOLT,
.vsel_mask = BD718XX_LDO3_MASK,
.enable_reg = BD718XX_REG_LDO3_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO3_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo4",
.of_match = of_match_ptr("LDO4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO4,
.ops = &bd718xx_ldo_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO4_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo4_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts),
.vsel_reg = BD718XX_REG_LDO4_VOLT,
.vsel_mask = BD718XX_LDO4_MASK,
.enable_reg = BD718XX_REG_LDO4_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO4_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo5",
.of_match = of_match_ptr("LDO5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO5,
.ops = &bd718xx_pickable_range_ldo_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71847_LDO5_VOLTAGE_NUM,
.linear_ranges = bd71847_ldo5_volts,
.n_linear_ranges = ARRAY_SIZE(bd71847_ldo5_volts),
.vsel_reg = BD718XX_REG_LDO5_VOLT,
.vsel_mask = BD71847_LDO5_MASK,
.vsel_range_reg = BD718XX_REG_LDO5_VOLT,
.vsel_range_mask = BD71847_LDO5_RANGE_MASK,
.linear_range_selectors = bd71847_ldo5_volt_range_sel,
.enable_reg = BD718XX_REG_LDO5_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO5_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo6",
.of_match = of_match_ptr("LDO6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO6,
.ops = &bd718xx_ldo_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO6_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo6_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts),
/* LDO6 is supplied by buck5 */
.supply_name = "buck5",
.vsel_reg = BD718XX_REG_LDO6_VOLT,
.vsel_mask = BD718XX_LDO6_MASK,
.enable_reg = BD718XX_REG_LDO6_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO6_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
};
static const struct bd718xx_regulator_data bd71837_regulators[] = {
{
.desc = {
.name = "buck1",
.of_match = of_match_ptr("BUCK1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK1,
.ops = &bd718xx_dvs_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD718XX_REG_BUCK1_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND,
.run_reg = BD718XX_REG_BUCK1_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
.idle_reg = BD718XX_REG_BUCK1_VOLT_IDLE,
.idle_mask = DVS_BUCK_RUN_MASK,
.suspend_reg = BD718XX_REG_BUCK1_VOLT_SUSP,
.suspend_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD718XX_REG_BUCK1_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck2",
.of_match = of_match_ptr("BUCK2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK2,
.ops = &bd718xx_dvs_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD718XX_REG_BUCK2_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE,
.run_reg = BD718XX_REG_BUCK2_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
.idle_reg = BD718XX_REG_BUCK2_VOLT_IDLE,
.idle_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD718XX_REG_BUCK2_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck3",
.of_match = of_match_ptr("BUCK3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK3,
.ops = &bd718xx_dvs_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD71837_REG_BUCK3_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD71837_REG_BUCK3_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN,
.run_reg = BD71837_REG_BUCK3_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD71837_REG_BUCK3_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck4",
.of_match = of_match_ptr("BUCK4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK4,
.ops = &bd718xx_dvs_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD71837_REG_BUCK4_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD71837_REG_BUCK4_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN,
.run_reg = BD71837_REG_BUCK4_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD71837_REG_BUCK4_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck5",
.of_match = of_match_ptr("BUCK5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK5,
.ops = &bd71837_pickable_range_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71837_BUCK5_VOLTAGE_NUM,
.linear_ranges = bd71837_buck5_volts,
.n_linear_ranges =
ARRAY_SIZE(bd71837_buck5_volts),
.vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT,
.vsel_mask = BD71837_BUCK5_MASK,
.vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT,
.vsel_range_mask = BD71837_BUCK5_RANGE_MASK,
.linear_range_selectors = bd71837_buck5_volt_range_sel,
.enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck6",
.of_match = of_match_ptr("BUCK6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK6,
.ops = &bd71837_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71837_BUCK6_VOLTAGE_NUM,
.linear_ranges = bd71837_buck6_volts,
.n_linear_ranges =
ARRAY_SIZE(bd71837_buck6_volts),
.vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT,
.vsel_mask = BD71837_BUCK6_MASK,
.enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck7",
.of_match = of_match_ptr("BUCK7"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK7,
.ops = &bd71837_buck_regulator_nolinear_ops,
.type = REGULATOR_VOLTAGE,
.volt_table = &bd718xx_3rd_nodvs_buck_volts[0],
.n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts),
.vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK,
.enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck8",
.of_match = of_match_ptr("BUCK8"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK8,
.ops = &bd71837_buck_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_4th_nodvs_buck_volts,
.n_linear_ranges =
ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts),
.vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK,
.enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "ldo1",
.of_match = of_match_ptr("LDO1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO1,
.ops = &bd71837_pickable_range_ldo_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO1_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo1_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts),
.vsel_reg = BD718XX_REG_LDO1_VOLT,
.vsel_mask = BD718XX_LDO1_MASK,
.vsel_range_reg = BD718XX_REG_LDO1_VOLT,
.vsel_range_mask = BD718XX_LDO1_RANGE_MASK,
.linear_range_selectors = bd718xx_ldo1_volt_range_sel,
.enable_reg = BD718XX_REG_LDO1_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO1_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo2",
.of_match = of_match_ptr("LDO2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO2,
.ops = &bd71837_ldo_regulator_nolinear_ops,
.type = REGULATOR_VOLTAGE,
.volt_table = &ldo_2_volts[0],
.vsel_reg = BD718XX_REG_LDO2_VOLT,
.vsel_mask = BD718XX_LDO2_MASK,
.n_voltages = ARRAY_SIZE(ldo_2_volts),
.enable_reg = BD718XX_REG_LDO2_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO2_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo3",
.of_match = of_match_ptr("LDO3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO3,
.ops = &bd71837_ldo_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO3_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo3_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts),
.vsel_reg = BD718XX_REG_LDO3_VOLT,
.vsel_mask = BD718XX_LDO3_MASK,
.enable_reg = BD718XX_REG_LDO3_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO3_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo4",
.of_match = of_match_ptr("LDO4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO4,
.ops = &bd71837_ldo_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO4_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo4_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts),
.vsel_reg = BD718XX_REG_LDO4_VOLT,
.vsel_mask = BD718XX_LDO4_MASK,
.enable_reg = BD718XX_REG_LDO4_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO4_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo5",
.of_match = of_match_ptr("LDO5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO5,
.ops = &bd71837_ldo_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71837_LDO5_VOLTAGE_NUM,
.linear_ranges = bd71837_ldo5_volts,
.n_linear_ranges = ARRAY_SIZE(bd71837_ldo5_volts),
/* LDO5 is supplied by buck6 */
.supply_name = "buck6",
.vsel_reg = BD718XX_REG_LDO5_VOLT,
.vsel_mask = BD71837_LDO5_MASK,
.enable_reg = BD718XX_REG_LDO5_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO5_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
.additional_inits = bd71837_ldo5_inits,
.additional_init_amnt = ARRAY_SIZE(bd71837_ldo5_inits),
},
{
.desc = {
.name = "ldo6",
.of_match = of_match_ptr("LDO6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO6,
.ops = &bd71837_ldo_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO6_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo6_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts),
/* LDO6 is supplied by buck7 */
.supply_name = "buck7",
.vsel_reg = BD718XX_REG_LDO6_VOLT,
.vsel_mask = BD718XX_LDO6_MASK,
.enable_reg = BD718XX_REG_LDO6_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO6_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
.additional_inits = bd71837_ldo6_inits,
.additional_init_amnt = ARRAY_SIZE(bd71837_ldo6_inits),
},
{
.desc = {
.name = "ldo7",
.of_match = of_match_ptr("LDO7"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO7,
.ops = &bd71837_ldo_regulator_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71837_LDO7_VOLTAGE_NUM,
.linear_ranges = bd71837_ldo7_volts,
.n_linear_ranges = ARRAY_SIZE(bd71837_ldo7_volts),
.vsel_reg = BD71837_REG_LDO7_VOLT,
.vsel_mask = BD71837_LDO7_MASK,
.enable_reg = BD71837_REG_LDO7_VOLT,
.enable_mask = BD718XX_LDO_EN,
.owner = THIS_MODULE,
},
.init = {
.reg = BD71837_REG_LDO7_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
};
static int bd718xx_probe(struct platform_device *pdev)
{
struct bd718xx *mfd;
struct regulator_config config = { 0 };
int i, j, err;
bool use_snvs;
const struct bd718xx_regulator_data *reg_data;
unsigned int num_reg_data;
enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data;
mfd = dev_get_drvdata(pdev->dev.parent);
if (!mfd) {
dev_err(&pdev->dev, "No MFD driver data\n");
err = -EINVAL;
goto err;
}
switch (chip) {
case ROHM_CHIP_TYPE_BD71837:
reg_data = bd71837_regulators;
num_reg_data = ARRAY_SIZE(bd71837_regulators);
break;
case ROHM_CHIP_TYPE_BD71847:
reg_data = bd71847_regulators;
num_reg_data = ARRAY_SIZE(bd71847_regulators);
break;
default:
dev_err(&pdev->dev, "Unsupported chip type\n");
err = -EINVAL;
goto err;
}
/* Register LOCK release */
err = regmap_update_bits(mfd->chip.regmap, BD718XX_REG_REGLOCK,
(REGLOCK_PWRSEQ | REGLOCK_VREG), 0);
if (err) {
dev_err(&pdev->dev, "Failed to unlock PMIC (%d)\n", err);
goto err;
} else {
dev_dbg(&pdev->dev, "Unlocked lock register 0x%x\n",
BD718XX_REG_REGLOCK);
}
use_snvs = of_property_read_bool(pdev->dev.parent->of_node,
"rohm,reset-snvs-powered");
/*
* Change the next stage from poweroff to be READY instead of SNVS
* for all reset types because OTP loading at READY will clear SEL
* bit allowing HW defaults for power rails to be used
*/
if (!use_snvs) {
err = regmap_update_bits(mfd->chip.regmap,
BD718XX_REG_TRANS_COND1,
BD718XX_ON_REQ_POWEROFF_MASK |
BD718XX_SWRESET_POWEROFF_MASK |
BD718XX_WDOG_POWEROFF_MASK |
BD718XX_KEY_L_POWEROFF_MASK,
BD718XX_POWOFF_TO_RDY);
if (err) {
dev_err(&pdev->dev, "Failed to change reset target\n");
goto err;
} else {
dev_dbg(&pdev->dev,
"Changed all resets from SVNS to READY\n");
}
}
for (i = 0; i < num_reg_data; i++) {
const struct regulator_desc *desc;
struct regulator_dev *rdev;
const struct bd718xx_regulator_data *r;
r = &reg_data[i];
desc = &r->desc;
config.dev = pdev->dev.parent;
config.regmap = mfd->chip.regmap;
rdev = devm_regulator_register(&pdev->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev,
"failed to register %s regulator\n",
desc->name);
err = PTR_ERR(rdev);
goto err;
}
/*
* Regulator register gets the regulator constraints and
* applies them (set_machine_constraints). This should have
* turned the control register(s) to correct values and we
* can now switch the control from PMIC state machine to the
* register interface
*
* At poweroff transition PMIC HW disables EN bit for
* regulators but leaves SEL bit untouched. So if state
* transition from POWEROFF is done to SNVS - then all power
* rails controlled by SW (having SEL bit set) stay disabled
* as EN is cleared. This will result boot failure if any
* crucial systems are powered by these rails. We don't
* enable SW control for crucial regulators if snvs state is
* used
*/
if (!use_snvs || !rdev->constraints->always_on ||
!rdev->constraints->boot_on) {
err = regmap_update_bits(mfd->chip.regmap, r->init.reg,
r->init.mask, r->init.val);
if (err) {
dev_err(&pdev->dev,
"Failed to take control for (%s)\n",
desc->name);
goto err;
}
}
for (j = 0; j < r->additional_init_amnt; j++) {
err = regmap_update_bits(mfd->chip.regmap,
r->additional_inits[j].reg,
r->additional_inits[j].mask,
r->additional_inits[j].val);
if (err) {
dev_err(&pdev->dev,
"Buck (%s) initialization failed\n",
desc->name);
goto err;
}
}
}
err:
return err;
}
static const struct platform_device_id bd718x7_pmic_id[] = {
{ "bd71837-pmic", ROHM_CHIP_TYPE_BD71837 },
{ "bd71847-pmic", ROHM_CHIP_TYPE_BD71847 },
{ },
};
MODULE_DEVICE_TABLE(platform, bd718x7_pmic_id);
static struct platform_driver bd718xx_regulator = {
.driver = {
.name = "bd718xx-pmic",
},
.probe = bd718xx_probe,
.id_table = bd718x7_pmic_id,
};
module_platform_driver(bd718xx_regulator);
MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
MODULE_DESCRIPTION("BD71837/BD71847 voltage regulator driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bd718xx-pmic");
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