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linux/drivers/regulator/act8865-regulator.c
Rob Herring (Arm) b03695d952
regulator: Use of_property_read_bool() 
Use of_property_read_bool() to read boolean properties rather than
of_get_property(). This is part of a larger effort to remove callers
of of_get_property() and similar functions. of_get_property() leaks
the DT property data pointer which is a problem for dynamically
allocated nodes which may be freed.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240731191312.1710417-24-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-01 12:50:11 +01:00

801 lines
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
*
* http://www.active-semi.com/products/power-management-units/act88xx/
*
* Copyright (C) 2013 Atmel Corporation
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/act8865.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/power_supply.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regmap.h>
#include <dt-bindings/regulator/active-semi,8865-regulator.h>
/*
* ACT8600 Global Register Map.
*/
#define ACT8600_SYS_MODE 0x00
#define ACT8600_SYS_CTRL 0x01
#define ACT8600_DCDC1_VSET 0x10
#define ACT8600_DCDC1_CTRL 0x12
#define ACT8600_DCDC2_VSET 0x20
#define ACT8600_DCDC2_CTRL 0x22
#define ACT8600_DCDC3_VSET 0x30
#define ACT8600_DCDC3_CTRL 0x32
#define ACT8600_SUDCDC4_VSET 0x40
#define ACT8600_SUDCDC4_CTRL 0x41
#define ACT8600_LDO5_VSET 0x50
#define ACT8600_LDO5_CTRL 0x51
#define ACT8600_LDO6_VSET 0x60
#define ACT8600_LDO6_CTRL 0x61
#define ACT8600_LDO7_VSET 0x70
#define ACT8600_LDO7_CTRL 0x71
#define ACT8600_LDO8_VSET 0x80
#define ACT8600_LDO8_CTRL 0x81
#define ACT8600_LDO910_CTRL 0x91
#define ACT8600_APCH0 0xA1
#define ACT8600_APCH1 0xA8
#define ACT8600_APCH2 0xA9
#define ACT8600_APCH_STAT 0xAA
#define ACT8600_OTG0 0xB0
#define ACT8600_OTG1 0xB2
/*
* ACT8846 Global Register Map.
*/
#define ACT8846_SYS0 0x00
#define ACT8846_SYS1 0x01
#define ACT8846_REG1_VSET 0x10
#define ACT8846_REG1_CTRL 0x12
#define ACT8846_REG2_VSET0 0x20
#define ACT8846_REG2_VSET1 0x21
#define ACT8846_REG2_CTRL 0x22
#define ACT8846_REG3_VSET0 0x30
#define ACT8846_REG3_VSET1 0x31
#define ACT8846_REG3_CTRL 0x32
#define ACT8846_REG4_VSET0 0x40
#define ACT8846_REG4_VSET1 0x41
#define ACT8846_REG4_CTRL 0x42
#define ACT8846_REG5_VSET 0x50
#define ACT8846_REG5_CTRL 0x51
#define ACT8846_REG6_VSET 0x58
#define ACT8846_REG6_CTRL 0x59
#define ACT8846_REG7_VSET 0x60
#define ACT8846_REG7_CTRL 0x61
#define ACT8846_REG8_VSET 0x68
#define ACT8846_REG8_CTRL 0x69
#define ACT8846_REG9_VSET 0x70
#define ACT8846_REG9_CTRL 0x71
#define ACT8846_REG10_VSET 0x80
#define ACT8846_REG10_CTRL 0x81
#define ACT8846_REG11_VSET 0x90
#define ACT8846_REG11_CTRL 0x91
#define ACT8846_REG12_VSET 0xa0
#define ACT8846_REG12_CTRL 0xa1
#define ACT8846_REG13_CTRL 0xb1
#define ACT8846_GLB_OFF_CTRL 0xc3
#define ACT8846_OFF_SYSMASK 0x18
/*
* ACT8865 Global Register Map.
*/
#define ACT8865_SYS_MODE 0x00
#define ACT8865_SYS_CTRL 0x01
#define ACT8865_SYS_UNLK_REGS 0x0b
#define ACT8865_DCDC1_VSET1 0x20
#define ACT8865_DCDC1_VSET2 0x21
#define ACT8865_DCDC1_CTRL 0x22
#define ACT8865_DCDC1_SUS 0x24
#define ACT8865_DCDC2_VSET1 0x30
#define ACT8865_DCDC2_VSET2 0x31
#define ACT8865_DCDC2_CTRL 0x32
#define ACT8865_DCDC2_SUS 0x34
#define ACT8865_DCDC3_VSET1 0x40
#define ACT8865_DCDC3_VSET2 0x41
#define ACT8865_DCDC3_CTRL 0x42
#define ACT8865_DCDC3_SUS 0x44
#define ACT8865_LDO1_VSET 0x50
#define ACT8865_LDO1_CTRL 0x51
#define ACT8865_LDO1_SUS 0x52
#define ACT8865_LDO2_VSET 0x54
#define ACT8865_LDO2_CTRL 0x55
#define ACT8865_LDO2_SUS 0x56
#define ACT8865_LDO3_VSET 0x60
#define ACT8865_LDO3_CTRL 0x61
#define ACT8865_LDO3_SUS 0x62
#define ACT8865_LDO4_VSET 0x64
#define ACT8865_LDO4_CTRL 0x65
#define ACT8865_LDO4_SUS 0x66
#define ACT8865_MSTROFF 0x20
/*
* Field Definitions.
*/
#define ACT8865_ENA 0x80 /* ON - [7] */
#define ACT8865_DIS 0x40 /* DIS - [6] */
#define ACT8865_VSEL_MASK 0x3F /* VSET - [5:0] */
#define ACT8600_LDO10_ENA 0x40 /* ON - [6] */
#define ACT8600_SUDCDC_VSEL_MASK 0xFF /* SUDCDC VSET - [7:0] */
#define ACT8600_APCH_CHG_ACIN BIT(7)
#define ACT8600_APCH_CHG_USB BIT(6)
#define ACT8600_APCH_CSTATE0 BIT(5)
#define ACT8600_APCH_CSTATE1 BIT(4)
/*
* ACT8865 voltage number
*/
#define ACT8865_VOLTAGE_NUM 64
#define ACT8600_SUDCDC_VOLTAGE_NUM 256
struct act8865 {
struct regmap *regmap;
int off_reg;
int off_mask;
};
static const struct regmap_range act8600_reg_ranges[] = {
regmap_reg_range(0x00, 0x01),
regmap_reg_range(0x10, 0x10),
regmap_reg_range(0x12, 0x12),
regmap_reg_range(0x20, 0x20),
regmap_reg_range(0x22, 0x22),
regmap_reg_range(0x30, 0x30),
regmap_reg_range(0x32, 0x32),
regmap_reg_range(0x40, 0x41),
regmap_reg_range(0x50, 0x51),
regmap_reg_range(0x60, 0x61),
regmap_reg_range(0x70, 0x71),
regmap_reg_range(0x80, 0x81),
regmap_reg_range(0x91, 0x91),
regmap_reg_range(0xA1, 0xA1),
regmap_reg_range(0xA8, 0xAA),
regmap_reg_range(0xB0, 0xB0),
regmap_reg_range(0xB2, 0xB2),
regmap_reg_range(0xC1, 0xC1),
};
static const struct regmap_range act8600_reg_ro_ranges[] = {
regmap_reg_range(0xAA, 0xAA),
regmap_reg_range(0xC1, 0xC1),
};
static const struct regmap_range act8600_reg_volatile_ranges[] = {
regmap_reg_range(0x00, 0x01),
regmap_reg_range(0x12, 0x12),
regmap_reg_range(0x22, 0x22),
regmap_reg_range(0x32, 0x32),
regmap_reg_range(0x41, 0x41),
regmap_reg_range(0x51, 0x51),
regmap_reg_range(0x61, 0x61),
regmap_reg_range(0x71, 0x71),
regmap_reg_range(0x81, 0x81),
regmap_reg_range(0xA8, 0xA8),
regmap_reg_range(0xAA, 0xAA),
regmap_reg_range(0xB0, 0xB0),
regmap_reg_range(0xC1, 0xC1),
};
static const struct regmap_access_table act8600_write_ranges_table = {
.yes_ranges = act8600_reg_ranges,
.n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges),
.no_ranges = act8600_reg_ro_ranges,
.n_no_ranges = ARRAY_SIZE(act8600_reg_ro_ranges),
};
static const struct regmap_access_table act8600_read_ranges_table = {
.yes_ranges = act8600_reg_ranges,
.n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges),
};
static const struct regmap_access_table act8600_volatile_ranges_table = {
.yes_ranges = act8600_reg_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(act8600_reg_volatile_ranges),
};
static const struct regmap_config act8600_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xFF,
.wr_table = &act8600_write_ranges_table,
.rd_table = &act8600_read_ranges_table,
.volatile_table = &act8600_volatile_ranges_table,
};
static const struct regmap_config act8865_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
static const struct linear_range act8865_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
};
static const struct linear_range act8600_sudcdc_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000),
REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0),
};
static int act8865_set_suspend_state(struct regulator_dev *rdev, bool enable)
{
struct regmap *regmap = rdev->regmap;
int id = rdev->desc->id, reg, val;
switch (id) {
case ACT8865_ID_DCDC1:
reg = ACT8865_DCDC1_SUS;
val = 0xa8;
break;
case ACT8865_ID_DCDC2:
reg = ACT8865_DCDC2_SUS;
val = 0xa8;
break;
case ACT8865_ID_DCDC3:
reg = ACT8865_DCDC3_SUS;
val = 0xa8;
break;
case ACT8865_ID_LDO1:
reg = ACT8865_LDO1_SUS;
val = 0xe8;
break;
case ACT8865_ID_LDO2:
reg = ACT8865_LDO2_SUS;
val = 0xe8;
break;
case ACT8865_ID_LDO3:
reg = ACT8865_LDO3_SUS;
val = 0xe8;
break;
case ACT8865_ID_LDO4:
reg = ACT8865_LDO4_SUS;
val = 0xe8;
break;
default:
return -EINVAL;
}
if (enable)
val |= BIT(4);
/*
* Ask the PMIC to enable/disable this output when entering hibernate
* mode.
*/
return regmap_write(regmap, reg, val);
}
static int act8865_set_suspend_enable(struct regulator_dev *rdev)
{
return act8865_set_suspend_state(rdev, true);
}
static int act8865_set_suspend_disable(struct regulator_dev *rdev)
{
return act8865_set_suspend_state(rdev, false);
}
static unsigned int act8865_of_map_mode(unsigned int mode)
{
switch (mode) {
case ACT8865_REGULATOR_MODE_FIXED:
return REGULATOR_MODE_FAST;
case ACT8865_REGULATOR_MODE_NORMAL:
return REGULATOR_MODE_NORMAL;
case ACT8865_REGULATOR_MODE_LOWPOWER:
return REGULATOR_MODE_STANDBY;
default:
return REGULATOR_MODE_INVALID;
}
}
static int act8865_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct regmap *regmap = rdev->regmap;
int id = rdev_get_id(rdev);
int reg, val = 0;
switch (id) {
case ACT8865_ID_DCDC1:
reg = ACT8865_DCDC1_CTRL;
break;
case ACT8865_ID_DCDC2:
reg = ACT8865_DCDC2_CTRL;
break;
case ACT8865_ID_DCDC3:
reg = ACT8865_DCDC3_CTRL;
break;
case ACT8865_ID_LDO1:
reg = ACT8865_LDO1_CTRL;
break;
case ACT8865_ID_LDO2:
reg = ACT8865_LDO2_CTRL;
break;
case ACT8865_ID_LDO3:
reg = ACT8865_LDO3_CTRL;
break;
case ACT8865_ID_LDO4:
reg = ACT8865_LDO4_CTRL;
break;
default:
return -EINVAL;
}
switch (mode) {
case REGULATOR_MODE_FAST:
case REGULATOR_MODE_NORMAL:
if (id <= ACT8865_ID_DCDC3)
val = BIT(5);
break;
case REGULATOR_MODE_STANDBY:
if (id > ACT8865_ID_DCDC3)
val = BIT(5);
break;
default:
return -EINVAL;
}
return regmap_update_bits(regmap, reg, BIT(5), val);
}
static unsigned int act8865_get_mode(struct regulator_dev *rdev)
{
struct regmap *regmap = rdev->regmap;
int id = rdev_get_id(rdev);
int reg, ret, val = 0;
switch (id) {
case ACT8865_ID_DCDC1:
reg = ACT8865_DCDC1_CTRL;
break;
case ACT8865_ID_DCDC2:
reg = ACT8865_DCDC2_CTRL;
break;
case ACT8865_ID_DCDC3:
reg = ACT8865_DCDC3_CTRL;
break;
case ACT8865_ID_LDO1:
reg = ACT8865_LDO1_CTRL;
break;
case ACT8865_ID_LDO2:
reg = ACT8865_LDO2_CTRL;
break;
case ACT8865_ID_LDO3:
reg = ACT8865_LDO3_CTRL;
break;
case ACT8865_ID_LDO4:
reg = ACT8865_LDO4_CTRL;
break;
default:
return -EINVAL;
}
ret = regmap_read(regmap, reg, &val);
if (ret)
return ret;
if (id <= ACT8865_ID_DCDC3 && (val & BIT(5)))
return REGULATOR_MODE_FAST;
else if (id > ACT8865_ID_DCDC3 && !(val & BIT(5)))
return REGULATOR_MODE_NORMAL;
else
return REGULATOR_MODE_STANDBY;
}
static const struct regulator_ops act8865_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = act8865_set_mode,
.get_mode = act8865_get_mode,
.is_enabled = regulator_is_enabled_regmap,
.set_suspend_enable = act8865_set_suspend_enable,
.set_suspend_disable = act8865_set_suspend_disable,
};
static const struct regulator_ops act8865_ldo_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = act8865_set_mode,
.get_mode = act8865_get_mode,
.is_enabled = regulator_is_enabled_regmap,
.set_suspend_enable = act8865_set_suspend_enable,
.set_suspend_disable = act8865_set_suspend_disable,
.set_pull_down = regulator_set_pull_down_regmap,
};
static const struct regulator_ops act8865_fixed_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
#define ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, _ops) \
[_family##_ID_##_id] = { \
.name = _name, \
.of_match = of_match_ptr(_name), \
.of_map_mode = act8865_of_map_mode, \
.regulators_node = of_match_ptr("regulators"), \
.supply_name = _supply, \
.id = _family##_ID_##_id, \
.type = REGULATOR_VOLTAGE, \
.ops = _ops, \
.n_voltages = ACT8865_VOLTAGE_NUM, \
.linear_ranges = act8865_voltage_ranges, \
.n_linear_ranges = ARRAY_SIZE(act8865_voltage_ranges), \
.vsel_reg = _family##_##_id##_##_vsel_reg, \
.vsel_mask = ACT8865_VSEL_MASK, \
.enable_reg = _family##_##_id##_CTRL, \
.enable_mask = ACT8865_ENA, \
.pull_down_reg = _family##_##_id##_CTRL, \
.pull_down_mask = ACT8865_DIS, \
.owner = THIS_MODULE, \
}
#define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply) \
ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ops)
#define ACT88xx_LDO(_name, _family, _id, _vsel_reg, _supply) \
ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ldo_ops)
static const struct regulator_desc act8600_regulators[] = {
ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
{
.name = "SUDCDC_REG4",
.of_match = of_match_ptr("SUDCDC_REG4"),
.regulators_node = of_match_ptr("regulators"),
.id = ACT8600_ID_SUDCDC4,
.ops = &act8865_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
.linear_ranges = act8600_sudcdc_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
.vsel_reg = ACT8600_SUDCDC4_VSET,
.vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
.enable_reg = ACT8600_SUDCDC4_CTRL,
.enable_mask = ACT8865_ENA,
.owner = THIS_MODULE,
},
ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
{
.name = "LDO_REG9",
.of_match = of_match_ptr("LDO_REG9"),
.regulators_node = of_match_ptr("regulators"),
.id = ACT8600_ID_LDO9,
.ops = &act8865_fixed_ldo_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = 1,
.fixed_uV = 3300000,
.enable_reg = ACT8600_LDO910_CTRL,
.enable_mask = ACT8865_ENA,
.owner = THIS_MODULE,
},
{
.name = "LDO_REG10",
.of_match = of_match_ptr("LDO_REG10"),
.regulators_node = of_match_ptr("regulators"),
.id = ACT8600_ID_LDO10,
.ops = &act8865_fixed_ldo_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = 1,
.fixed_uV = 1200000,
.enable_reg = ACT8600_LDO910_CTRL,
.enable_mask = ACT8600_LDO10_ENA,
.owner = THIS_MODULE,
},
};
static const struct regulator_desc act8846_regulators[] = {
ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
};
static const struct regulator_desc act8865_regulators[] = {
ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
ACT88xx_LDO("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
ACT88xx_LDO("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
ACT88xx_LDO("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
ACT88xx_LDO("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
};
static const struct regulator_desc act8865_alt_regulators[] = {
ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),
ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),
ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),
ACT88xx_LDO("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
ACT88xx_LDO("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
ACT88xx_LDO("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
ACT88xx_LDO("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
};
#ifdef CONFIG_OF
static const struct of_device_id act8865_dt_ids[] = {
{ .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
{ .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
{ }
};
MODULE_DEVICE_TABLE(of, act8865_dt_ids);
#endif
static struct act8865_regulator_data *act8865_get_regulator_data(
int id, struct act8865_platform_data *pdata)
{
int i;
for (i = 0; i < pdata->num_regulators; i++) {
if (pdata->regulators[i].id == id)
return &pdata->regulators[i];
}
return NULL;
}
static struct i2c_client *act8865_i2c_client;
static void act8865_power_off(void)
{
struct act8865 *act8865;
act8865 = i2c_get_clientdata(act8865_i2c_client);
regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);
while (1);
}
static int act8600_charger_get_status(struct regmap *map)
{
unsigned int val;
int ret;
u8 state0, state1;
ret = regmap_read(map, ACT8600_APCH_STAT, &val);
if (ret < 0)
return ret;
state0 = val & ACT8600_APCH_CSTATE0;
state1 = val & ACT8600_APCH_CSTATE1;
if (state0 && !state1)
return POWER_SUPPLY_STATUS_CHARGING;
if (!state0 && state1)
return POWER_SUPPLY_STATUS_NOT_CHARGING;
if (!state0 && !state1)
return POWER_SUPPLY_STATUS_DISCHARGING;
return POWER_SUPPLY_STATUS_UNKNOWN;
}
static int act8600_charger_get_property(struct power_supply *psy,
enum power_supply_property psp, union power_supply_propval *val)
{
struct regmap *map = power_supply_get_drvdata(psy);
int ret;
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
ret = act8600_charger_get_status(map);
if (ret < 0)
return ret;
val->intval = ret;
break;
default:
return -EINVAL;
}
return 0;
}
static enum power_supply_property act8600_charger_properties[] = {
POWER_SUPPLY_PROP_STATUS,
};
static const struct power_supply_desc act8600_charger_desc = {
.name = "act8600-charger",
.type = POWER_SUPPLY_TYPE_BATTERY,
.properties = act8600_charger_properties,
.num_properties = ARRAY_SIZE(act8600_charger_properties),
.get_property = act8600_charger_get_property,
};
static int act8600_charger_probe(struct device *dev, struct regmap *regmap)
{
struct power_supply *charger;
struct power_supply_config cfg = {
.drv_data = regmap,
.of_node = dev->of_node,
};
charger = devm_power_supply_register(dev, &act8600_charger_desc, &cfg);
return PTR_ERR_OR_ZERO(charger);
}
static int act8865_pmic_probe(struct i2c_client *client)
{
const struct i2c_device_id *i2c_id = i2c_client_get_device_id(client);
const struct regulator_desc *regulators;
struct act8865_platform_data *pdata = NULL;
struct device *dev = &client->dev;
int i, ret, num_regulators;
struct act8865 *act8865;
const struct regmap_config *regmap_config;
unsigned long type;
int off_reg, off_mask;
int voltage_select = 0;
if (dev->of_node) {
const struct of_device_id *id;
id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
if (!id)
return -ENODEV;
type = (unsigned long) id->data;
voltage_select = of_property_read_bool(dev->of_node, "active-semi,vsel-high");
} else {
type = i2c_id->driver_data;
pdata = dev_get_platdata(dev);
}
switch (type) {
case ACT8600:
regulators = act8600_regulators;
num_regulators = ARRAY_SIZE(act8600_regulators);
regmap_config = &act8600_regmap_config;
off_reg = -1;
off_mask = -1;
break;
case ACT8846:
regulators = act8846_regulators;
num_regulators = ARRAY_SIZE(act8846_regulators);
regmap_config = &act8865_regmap_config;
off_reg = ACT8846_GLB_OFF_CTRL;
off_mask = ACT8846_OFF_SYSMASK;
break;
case ACT8865:
if (voltage_select) {
regulators = act8865_alt_regulators;
num_regulators = ARRAY_SIZE(act8865_alt_regulators);
} else {
regulators = act8865_regulators;
num_regulators = ARRAY_SIZE(act8865_regulators);
}
regmap_config = &act8865_regmap_config;
off_reg = ACT8865_SYS_CTRL;
off_mask = ACT8865_MSTROFF;
break;
default:
dev_err(dev, "invalid device id %lu\n", type);
return -EINVAL;
}
act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
if (!act8865)
return -ENOMEM;
act8865->regmap = devm_regmap_init_i2c(client, regmap_config);
if (IS_ERR(act8865->regmap)) {
ret = PTR_ERR(act8865->regmap);
dev_err(dev, "Failed to allocate register map: %d\n", ret);
return ret;
}
if (of_device_is_system_power_controller(dev->of_node)) {
if (!pm_power_off && (off_reg > 0)) {
act8865_i2c_client = client;
act8865->off_reg = off_reg;
act8865->off_mask = off_mask;
pm_power_off = act8865_power_off;
} else {
dev_err(dev, "Failed to set poweroff capability, already defined\n");
}
}
/* Finally register devices */
for (i = 0; i < num_regulators; i++) {
const struct regulator_desc *desc = &regulators[i];
struct regulator_config config = { };
struct regulator_dev *rdev;
config.dev = dev;
config.driver_data = act8865;
config.regmap = act8865->regmap;
if (pdata) {
struct act8865_regulator_data *rdata;
rdata = act8865_get_regulator_data(desc->id, pdata);
if (rdata) {
config.init_data = rdata->init_data;
config.of_node = rdata->of_node;
}
}
rdev = devm_regulator_register(dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(dev, "failed to register %s\n", desc->name);
return PTR_ERR(rdev);
}
}
if (type == ACT8600) {
ret = act8600_charger_probe(dev, act8865->regmap);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(dev, "Failed to probe charger");
return ret;
}
}
i2c_set_clientdata(client, act8865);
/* Unlock expert registers for ACT8865. */
return type != ACT8865 ? 0 : regmap_write(act8865->regmap,
ACT8865_SYS_UNLK_REGS, 0xef);
}
static const struct i2c_device_id act8865_ids[] = {
{ .name = "act8600", .driver_data = ACT8600 },
{ .name = "act8846", .driver_data = ACT8846 },
{ .name = "act8865", .driver_data = ACT8865 },
{ },
};
MODULE_DEVICE_TABLE(i2c, act8865_ids);
static struct i2c_driver act8865_pmic_driver = {
.driver = {
.name = "act8865",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = act8865_pmic_probe,
.id_table = act8865_ids,
};
module_i2c_driver(act8865_pmic_driver);
MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
MODULE_LICENSE("GPL v2");
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