/*
* axp20x.c - MFD core driver for the X-Powers' Power Management ICs
*
* AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
* converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
* as well as configurable GPIOs.
*
* Author: Carlo Caione <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/regulator/consumer.h>
#include <linux/mfd/axp20x.h>
#include <linux/mfd/core.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/acpi.h>
#define AXP20X_OFF 0x80
static const char const *axp20x_model_names[] = {
"AXP202",
"AXP209",
"AXP288",
};
static const struct regmap_range axp20x_writeable_ranges[] = {
regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES),
};
static const struct regmap_range axp20x_volatile_ranges[] = {
regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
};
static const struct regmap_access_table axp20x_writeable_table = {
.yes_ranges = axp20x_writeable_ranges,
.n_yes_ranges = ARRAY_SIZE(axp20x_writeable_ranges),
};
static const struct regmap_access_table axp20x_volatile_table = {
.yes_ranges = axp20x_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(axp20x_volatile_ranges),
};
static const struct regmap_range axp288_writeable_ranges[] = {
regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ6_STATE),
regmap_reg_range(AXP20X_DCDC_MODE, AXP288_FG_TUNE5),
};
static const struct regmap_range axp288_volatile_ranges[] = {
regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L),
};
static const struct regmap_access_table axp288_writeable_table = {
.yes_ranges = axp288_writeable_ranges,
.n_yes_ranges = ARRAY_SIZE(axp288_writeable_ranges),
};
static const struct regmap_access_table axp288_volatile_table = {
.yes_ranges = axp288_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(axp288_volatile_ranges),
};
static struct resource axp20x_pek_resources[] = {
{
.name = "PEK_DBR",
.start = AXP20X_IRQ_PEK_RIS_EDGE,
.end = AXP20X_IRQ_PEK_RIS_EDGE,
.flags = IORESOURCE_IRQ,
}, {
.name = "PEK_DBF",
.start = AXP20X_IRQ_PEK_FAL_EDGE,
.end = AXP20X_IRQ_PEK_FAL_EDGE,
.flags = IORESOURCE_IRQ,
},
};
static struct resource axp288_battery_resources[] = {
{
.start = AXP288_IRQ_QWBTU,
.end = AXP288_IRQ_QWBTU,
.flags = IORESOURCE_IRQ,
},
{
.start = AXP288_IRQ_WBTU,
.end = AXP288_IRQ_WBTU,
.flags = IORESOURCE_IRQ,
},
{
.start = AXP288_IRQ_QWBTO,
.end = AXP288_IRQ_QWBTO,
.flags = IORESOURCE_IRQ,
},
{
.start = AXP288_IRQ_WBTO,
.end = AXP288_IRQ_WBTO,
.flags = IORESOURCE_IRQ,
},
{
.start = AXP288_IRQ_WL2,
.end = AXP288_IRQ_WL2,
.flags = IORESOURCE_IRQ,
},
{
.start = AXP288_IRQ_WL1,
.end = AXP288_IRQ_WL1,
.flags = IORESOURCE_IRQ,
},
};
static const struct regmap_config axp20x_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.wr_table = &axp20x_writeable_table,
.volatile_table = &axp20x_volatile_table,
.max_register = AXP20X_FG_RES,
.cache_type = REGCACHE_RBTREE,
};
static const struct regmap_config axp288_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.wr_table = &axp288_writeable_table,
.volatile_table = &axp288_volatile_table,
.max_register = AXP288_FG_TUNE5,
.cache_type = REGCACHE_RBTREE,
};
#define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask) \
[_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) }
static const struct regmap_irq axp20x_regmap_irqs[] = {
INIT_REGMAP_IRQ(AXP20X, ACIN_OVER_V, 0, 7),
INIT_REGMAP_IRQ(AXP20X, ACIN_PLUGIN, 0, 6),
INIT_REGMAP_IRQ(AXP20X, ACIN_REMOVAL, 0, 5),
INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V, 0, 4),
INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN, 0, 3),
INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL, 0, 2),
INIT_REGMAP_IRQ(AXP20X, VBUS_V_LOW, 0, 1),
INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN, 1, 7),
INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL, 1, 6),
INIT_REGMAP_IRQ(AXP20X, BATT_ENT_ACT_MODE, 1, 5),
INIT_REGMAP_IRQ(AXP20X, BATT_EXIT_ACT_MODE, 1, 4),
INIT_REGMAP_IRQ(AXP20X, CHARG, 1, 3),
INIT_REGMAP_IRQ(AXP20X, CHARG_DONE, 1, 2),
INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_HIGH, 1, 1),
INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_LOW, 1, 0),
INIT_REGMAP_IRQ(AXP20X, DIE_TEMP_HIGH, 2, 7),
INIT_REGMAP_IRQ(AXP20X, CHARG_I_LOW, 2, 6),
INIT_REGMAP_IRQ(AXP20X, DCDC1_V_LONG, 2, 5),
INIT_REGMAP_IRQ(AXP20X, DCDC2_V_LONG, 2, 4),
INIT_REGMAP_IRQ(AXP20X, DCDC3_V_LONG, 2, 3),
INIT_REGMAP_IRQ(AXP20X, PEK_SHORT, 2, 1),
INIT_REGMAP_IRQ(AXP20X, PEK_LONG, 2, 0),
INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_ON, 3, 7),
INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_OFF, 3, 6),
INIT_REGMAP_IRQ(AXP20X, VBUS_VALID, 3, 5),
INIT_REGMAP_IRQ(AXP20X, VBUS_NOT_VALID, 3, 4),
INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_VALID, 3, 3),
INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_END, 3, 2),
INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL1, 3, 1),
INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL2, 3, 0),
INIT_REGMAP_IRQ(AXP20X, TIMER, 4, 7),
INIT_REGMAP_IRQ(AXP20X, PEK_RIS_EDGE, 4, 6),
INIT_REGMAP_IRQ(AXP20X, PEK_FAL_EDGE, 4, 5),
INIT_REGMAP_IRQ(AXP20X, GPIO3_INPUT, 4, 3),
INIT_REGMAP_IRQ(AXP20X, GPIO2_INPUT, 4, 2),
INIT_REGMAP_IRQ(AXP20X, GPIO1_INPUT, 4, 1),
INIT_REGMAP_IRQ(AXP20X, GPIO0_INPUT, 4, 0),
};
/* some IRQs are compatible with axp20x models */
static const struct regmap_irq axp288_regmap_irqs[] = {
INIT_REGMAP_IRQ(AXP288, VBUS_FALL, 0, 2),
INIT_REGMAP_IRQ(AXP288, VBUS_RISE, 0, 3),
INIT_REGMAP_IRQ(AXP288, OV, 0, 4),
INIT_REGMAP_IRQ(AXP288, DONE, 1, 2),
INIT_REGMAP_IRQ(AXP288, CHARGING, 1, 3),
INIT_REGMAP_IRQ(AXP288, SAFE_QUIT, 1, 4),
INIT_REGMAP_IRQ(AXP288, SAFE_ENTER, 1, 5),
INIT_REGMAP_IRQ(AXP288, ABSENT, 1, 6),
INIT_REGMAP_IRQ(AXP288, APPEND, 1, 7),
INIT_REGMAP_IRQ(AXP288, QWBTU, 2, 0),
INIT_REGMAP_IRQ(AXP288, WBTU, 2, 1),
INIT_REGMAP_IRQ(AXP288, QWBTO, 2, 2),
INIT_REGMAP_IRQ(AXP288, WBTO, 2, 3),
INIT_REGMAP_IRQ(AXP288, QCBTU, 2, 4),
INIT_REGMAP_IRQ(AXP288, CBTU, 2, 5),
INIT_REGMAP_IRQ(AXP288, QCBTO, 2, 6),
INIT_REGMAP_IRQ(AXP288, CBTO, 2, 7),
INIT_REGMAP_IRQ(AXP288, WL2, 3, 0),
INIT_REGMAP_IRQ(AXP288, WL1, 3, 1),
INIT_REGMAP_IRQ(AXP288, GPADC, 3, 2),
INIT_REGMAP_IRQ(AXP288, OT, 3, 7),
INIT_REGMAP_IRQ(AXP288, GPIO0, 4, 0),
INIT_REGMAP_IRQ(AXP288, GPIO1, 4, 1),
INIT_REGMAP_IRQ(AXP288, POKO, 4, 2),
INIT_REGMAP_IRQ(AXP288, POKL, 4, 3),
INIT_REGMAP_IRQ(AXP288, POKS, 4, 4),
INIT_REGMAP_IRQ(AXP288, POKN, 4, 5),
INIT_REGMAP_IRQ(AXP288, POKP, 4, 6),
INIT_REGMAP_IRQ(AXP288, TIMER, 4, 7),
INIT_REGMAP_IRQ(AXP288, MV_CHNG, 5, 0),
INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1),
};
static const struct of_device_id axp20x_of_match[] = {
{ .compatible = "x-powers,axp202", .data = (void *) AXP202_ID },
{ .compatible = "x-powers,axp209", .data = (void *) AXP209_ID },
{ },
};
MODULE_DEVICE_TABLE(of, axp20x_of_match);
/*
* This is useless for OF-enabled devices, but it is needed by I2C subsystem
*/
static const struct i2c_device_id axp20x_i2c_id[] = {
{ },
};
MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);
static const struct acpi_device_id axp20x