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提交 a55d952a 编写于 作者: C Chanwoo Choi
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Merge tag 'ib-mfd-extcon-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into HEAD 

Immutable branch between MFD and Extcon due for v3.16 merge-window.
上级 bf9509e0 8a82b408
隐藏空白更改
内联 并排
Showing with 836 addition and 188 deletion
drivers/extcon/Kconfig
浏览文件 @ a55d952a
......@@ -28,13 +28,13 @@ config EXTCON_ADC_JACK
Say Y here to enable extcon device driver based on ADC values.
config EXTCON_MAX14577
tristate "MAX14577 EXTCON Support"
tristate "MAX14577/77836 EXTCON Support"
depends on MFD_MAX14577
select IRQ_DOMAIN
select REGMAP_I2C
help
If you say yes here you get support for the MUIC device of
Maxim MAX14577 PMIC. The MAX14577 MUIC is a USB port accessory
Maxim MAX14577/77836. The MAX14577/77836 MUIC is a USB port accessory
detector and switch.
config EXTCON_MAX77693
......
drivers/extcon/extcon-max14577.c
浏览文件 @ a55d952a
/*
* extcon-max14577.c - MAX14577 extcon driver to support MAX14577 MUIC
* extcon-max14577.c - MAX14577/77836 extcon driver to support MUIC
*
* Copyright (C) 2013 Samsung Electrnoics
* Copyright (C) 2013,2014 Samsung Electrnoics
* Chanwoo Choi <cw00.choi@samsung.com>
* Krzysztof Kozlowski <k.kozlowski@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
......@@ -24,7 +25,6 @@
#include <linux/mfd/max14577-private.h>
#include <linux/extcon.h>
#define DEV_NAME "max14577-muic"
#define DELAY_MS_DEFAULT 17000 /* unit: millisecond */
enum max14577_muic_adc_debounce_time {
......@@ -40,6 +40,42 @@ enum max14577_muic_status {
MAX14577_MUIC_STATUS_END,
};
/**
* struct max14577_muic_irq
* @irq: the index of irq list of MUIC device.
* @name: the name of irq.
* @virq: the virtual irq to use irq domain
*/
struct max14577_muic_irq {
unsigned int irq;
const char *name;
unsigned int virq;
};
static struct max14577_muic_irq max14577_muic_irqs[] = {
{ MAX14577_IRQ_INT1_ADC, "muic-ADC" },
{ MAX14577_IRQ_INT1_ADCLOW, "muic-ADCLOW" },
{ MAX14577_IRQ_INT1_ADCERR, "muic-ADCError" },
{ MAX14577_IRQ_INT2_CHGTYP, "muic-CHGTYP" },
{ MAX14577_IRQ_INT2_CHGDETRUN, "muic-CHGDETRUN" },
{ MAX14577_IRQ_INT2_DCDTMR, "muic-DCDTMR" },
{ MAX14577_IRQ_INT2_DBCHG, "muic-DBCHG" },
{ MAX14577_IRQ_INT2_VBVOLT, "muic-VBVOLT" },
};
static struct max14577_muic_irq max77836_muic_irqs[] = {
{ MAX14577_IRQ_INT1_ADC, "muic-ADC" },
{ MAX14577_IRQ_INT1_ADCLOW, "muic-ADCLOW" },
{ MAX14577_IRQ_INT1_ADCERR, "muic-ADCError" },
{ MAX77836_IRQ_INT1_ADC1K, "muic-ADC1K" },
{ MAX14577_IRQ_INT2_CHGTYP, "muic-CHGTYP" },
{ MAX14577_IRQ_INT2_CHGDETRUN, "muic-CHGDETRUN" },
{ MAX14577_IRQ_INT2_DCDTMR, "muic-DCDTMR" },
{ MAX14577_IRQ_INT2_DBCHG, "muic-DBCHG" },
{ MAX14577_IRQ_INT2_VBVOLT, "muic-VBVOLT" },
{ MAX77836_IRQ_INT2_VIDRM, "muic-VIDRM" },
};
struct max14577_muic_info {
struct device *dev;
struct max14577 *max14577;
......@@ -48,6 +84,8 @@ struct max14577_muic_info {
int prev_chg_type;
u8 status[MAX14577_MUIC_STATUS_END];
struct max14577_muic_irq *muic_irqs;
unsigned int muic_irqs_num;
bool irq_adc;
bool irq_chg;
struct work_struct irq_work;
......@@ -74,29 +112,6 @@ enum max14577_muic_cable_group {
MAX14577_CABLE_GROUP_CHG,
};
/**
* struct max14577_muic_irq
* @irq: the index of irq list of MUIC device.
* @name: the name of irq.
* @virq: the virtual irq to use irq domain
*/
struct max14577_muic_irq {
unsigned int irq;
const char *name;
unsigned int virq;
};
static struct max14577_muic_irq muic_irqs[] = {
{ MAX14577_IRQ_INT1_ADC, "muic-ADC" },
{ MAX14577_IRQ_INT1_ADCLOW, "muic-ADCLOW" },
{ MAX14577_IRQ_INT1_ADCERR, "muic-ADCError" },
{ MAX14577_IRQ_INT2_CHGTYP, "muic-CHGTYP" },
{ MAX14577_IRQ_INT2_CHGDETRUN, "muic-CHGDETRUN" },
{ MAX14577_IRQ_INT2_DCDTMR, "muic-DCDTMR" },
{ MAX14577_IRQ_INT2_DBCHG, "muic-DBCHG" },
{ MAX14577_IRQ_INT2_VBVOLT, "muic-VBVOLT" },
};
/* Define supported accessory type */
enum max14577_muic_acc_type {
MAX14577_MUIC_ADC_GROUND = 0x0,
......@@ -528,21 +543,12 @@ static void max14577_muic_irq_work(struct work_struct *work)
return;
}
static irqreturn_t max14577_muic_irq_handler(int irq, void *data)
/*
* Sets irq_adc or irq_chg in max14577_muic_info and returns 1.
* Returns 0 if irq_type does not match registered IRQ for this device type.
*/
static int max14577_parse_irq(struct max14577_muic_info *info, int irq_type)
{
struct max14577_muic_info *info = data;
int i, irq_type = -1;
/*
* We may be called multiple times for different nested IRQ-s.
* Including changes in INT1_ADC and INT2_CGHTYP at once.
* However we only need to know whether it was ADC, charger
* or both interrupts so decode IRQ and turn on proper flags.
*/
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
if (irq == muic_irqs[i].virq)
irq_type = muic_irqs[i].irq;
switch (irq_type) {
case MAX14577_IRQ_INT1_ADC:
case MAX14577_IRQ_INT1_ADCLOW:
......@@ -550,7 +556,7 @@ static irqreturn_t max14577_muic_irq_handler(int irq, void *data)
/* Handle all of accessory except for
type of charger accessory */
info->irq_adc = true;
break;
return 1;
case MAX14577_IRQ_INT2_CHGTYP:
case MAX14577_IRQ_INT2_CHGDETRUN:
case MAX14577_IRQ_INT2_DCDTMR:
......@@ -558,8 +564,62 @@ static irqreturn_t max14577_muic_irq_handler(int irq, void *data)
case MAX14577_IRQ_INT2_VBVOLT:
/* Handle charger accessory */
info->irq_chg = true;
return 1;
default:
return 0;
}
}
/*
* Sets irq_adc or irq_chg in max14577_muic_info and returns 1.
* Returns 0 if irq_type does not match registered IRQ for this device type.
*/
static int max77836_parse_irq(struct max14577_muic_info *info, int irq_type)
{
/* First check common max14577 interrupts */
if (max14577_parse_irq(info, irq_type))
return 1;
switch (irq_type) {
case MAX77836_IRQ_INT1_ADC1K:
info->irq_adc = true;
return 1;
case MAX77836_IRQ_INT2_VIDRM:
/* Handle charger accessory */
info->irq_chg = true;
return 1;
default:
return 0;
}
}
static irqreturn_t max14577_muic_irq_handler(int irq, void *data)
{
struct max14577_muic_info *info = data;
int i, irq_type = -1;
bool irq_parsed;
/*
* We may be called multiple times for different nested IRQ-s.
* Including changes in INT1_ADC and INT2_CGHTYP at once.
* However we only need to know whether it was ADC, charger
* or both interrupts so decode IRQ and turn on proper flags.
*/
for (i = 0; i < info->muic_irqs_num; i++)
if (irq == info->muic_irqs[i].virq)
irq_type = info->muic_irqs[i].irq;
switch (info->max14577->dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
irq_parsed = max77836_parse_irq(info, irq_type);
break;
case MAXIM_DEVICE_TYPE_MAX14577:
default:
irq_parsed = max14577_parse_irq(info, irq_type);
break;
}
if (!irq_parsed) {
dev_err(info->dev, "muic interrupt: irq %d occurred, skipped\n",
irq_type);
return IRQ_HANDLED;
......@@ -644,9 +704,20 @@ static int max14577_muic_probe(struct platform_device *pdev)
INIT_WORK(&info->irq_work, max14577_muic_irq_work);
switch (max14577->dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
info->muic_irqs = max77836_muic_irqs;
info->muic_irqs_num = ARRAY_SIZE(max77836_muic_irqs);
break;
case MAXIM_DEVICE_TYPE_MAX14577:
default:
info->muic_irqs = max14577_muic_irqs;
info->muic_irqs_num = ARRAY_SIZE(max14577_muic_irqs);
}
/* Support irq domain for max14577 MUIC device */
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
struct max14577_muic_irq *muic_irq = &muic_irqs[i];
for (i = 0; i < info->muic_irqs_num; i++) {
struct max14577_muic_irq *muic_irq = &info->muic_irqs[i];
unsigned int virq = 0;
virq = regmap_irq_get_virq(max14577->irq_data, muic_irq->irq);
......@@ -673,7 +744,8 @@ static int max14577_muic_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
return -ENOMEM;
}
info->edev->name = DEV_NAME;
info->edev->name = dev_name(&pdev->dev);
info->edev->supported_cable = max14577_extcon_cable;
ret = extcon_dev_register(info->edev);
if (ret) {
......@@ -735,18 +807,26 @@ static int max14577_muic_remove(struct platform_device *pdev)
return 0;
}
static const struct platform_device_id max14577_muic_id[] = {
{ "max14577-muic", MAXIM_DEVICE_TYPE_MAX14577, },
{ "max77836-muic", MAXIM_DEVICE_TYPE_MAX77836, },
{ }
};
MODULE_DEVICE_TABLE(platform, max14577_muic_id);
static struct platform_driver max14577_muic_driver = {
.driver = {
.name = DEV_NAME,
.name = "max14577-muic",
.owner = THIS_MODULE,
},
.probe = max14577_muic_probe,
.remove = max14577_muic_remove,
.id_table = max14577_muic_id,
};
module_platform_driver(max14577_muic_driver);
MODULE_DESCRIPTION("MAXIM 14577 Extcon driver");
MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>");
MODULE_DESCRIPTION("Maxim 14577/77836 Extcon driver");
MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>, Krzysztof Kozlowski <k.kozlowski@samsung.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:extcon-max14577");
drivers/mfd/Kconfig
浏览文件 @ a55d952a
......@@ -331,15 +331,15 @@ config MFD_88PM860X
battery-charger under the corresponding menus.
config MFD_MAX14577
bool "Maxim Semiconductor MAX14577 MUIC + Charger Support"
bool "Maxim Semiconductor MAX14577/77836 MUIC + Charger Support"
depends on I2C=y
select MFD_CORE
select REGMAP_I2C
select REGMAP_IRQ
select IRQ_DOMAIN
help
Say yes here to add support for Maxim Semiconductor MAX14577.
This is a Micro-USB IC with Charger controls on chip.
Say yes here to add support for Maxim Semiconductor MAX14577 and
MAX77836 Micro-USB ICs with battery charger.
This driver provides common support for accessing the device;
additional drivers must be enabled in order to use the functionality
of the device.
......
drivers/mfd/max14577.c
浏览文件 @ a55d952a
/*
* max14577.c - mfd core driver for the Maxim 14577
* max14577.c - mfd core driver for the Maxim 14577/77836
*
* Copyright (C) 2013 Samsung Electrnoics
* Copyright (C) 2014 Samsung Electrnoics
* Chanwoo Choi <cw00.choi@samsung.com>
* Krzysztof Kozlowski <k.kozlowski@samsung.com>
*
......@@ -21,6 +21,7 @@
#include <linux/err.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/of_device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/max14577.h>
#include <linux/mfd/max14577-private.h>
......@@ -37,7 +38,38 @@ static struct mfd_cell max14577_devs[] = {
{ .name = "max14577-charger", },
};
static bool max14577_volatile_reg(struct device *dev, unsigned int reg)
static struct mfd_cell max77836_devs[] = {
{
.name = "max77836-muic",
.of_compatible = "maxim,max77836-muic",
},
{
.name = "max77836-regulator",
.of_compatible = "maxim,max77836-regulator",
},
{
.name = "max77836-charger",
.of_compatible = "maxim,max77836-charger",
},
{
.name = "max77836-battery",
.of_compatible = "maxim,max77836-battery",
},
};
static struct of_device_id max14577_dt_match[] = {
{
.compatible = "maxim,max14577",
.data = (void *)MAXIM_DEVICE_TYPE_MAX14577,
},
{
.compatible = "maxim,max77836",
.data = (void *)MAXIM_DEVICE_TYPE_MAX77836,
},
{},
};
static bool max14577_muic_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case MAX14577_REG_INT1 ... MAX14577_REG_STATUS3:
......@@ -48,49 +80,221 @@ static bool max14577_volatile_reg(struct device *dev, unsigned int reg)
return false;
}
static const struct regmap_config max14577_regmap_config = {
static bool max77836_muic_volatile_reg(struct device *dev, unsigned int reg)
{
/* Any max14577 volatile registers are also max77836 volatile. */
if (max14577_muic_volatile_reg(dev, reg))
return true;
switch (reg) {
case MAX77836_FG_REG_VCELL_MSB ... MAX77836_FG_REG_SOC_LSB:
case MAX77836_FG_REG_CRATE_MSB ... MAX77836_FG_REG_CRATE_LSB:
case MAX77836_FG_REG_STATUS_H ... MAX77836_FG_REG_STATUS_L:
case MAX77836_PMIC_REG_INTSRC:
case MAX77836_PMIC_REG_TOPSYS_INT:
case MAX77836_PMIC_REG_TOPSYS_STAT:
return true;
default:
break;
}
return false;
}
static const struct regmap_config max14577_muic_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.volatile_reg = max14577_volatile_reg,
.volatile_reg = max14577_muic_volatile_reg,
.max_register = MAX14577_REG_END,
};
static const struct regmap_config max77836_pmic_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.volatile_reg = max77836_muic_volatile_reg,
.max_register = MAX77836_PMIC_REG_END,
};
static const struct regmap_irq max14577_irqs[] = {
/* INT1 interrupts */
{ .reg_offset = 0, .mask = INT1_ADC_MASK, },
{ .reg_offset = 0, .mask = INT1_ADCLOW_MASK, },
{ .reg_offset = 0, .mask = INT1_ADCERR_MASK, },
{ .reg_offset = 0, .mask = MAX14577_INT1_ADC_MASK, },
{ .reg_offset = 0, .mask = MAX14577_INT1_ADCLOW_MASK, },
{ .reg_offset = 0, .mask = MAX14577_INT1_ADCERR_MASK, },
/* INT2 interrupts */
{ .reg_offset = 1, .mask = INT2_CHGTYP_MASK, },
{ .reg_offset = 1, .mask = INT2_CHGDETRUN_MASK, },
{ .reg_offset = 1, .mask = INT2_DCDTMR_MASK, },
{ .reg_offset = 1, .mask = INT2_DBCHG_MASK, },
{ .reg_offset = 1, .mask = INT2_VBVOLT_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_CHGTYP_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_CHGDETRUN_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_DCDTMR_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_DBCHG_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_VBVOLT_MASK, },
/* INT3 interrupts */
{ .reg_offset = 2, .mask = INT3_EOC_MASK, },
{ .reg_offset = 2, .mask = INT3_CGMBC_MASK, },
{ .reg_offset = 2, .mask = INT3_OVP_MASK, },
{ .reg_offset = 2, .mask = INT3_MBCCHGERR_MASK, },
{ .reg_offset = 2, .mask = MAX14577_INT3_EOC_MASK, },
{ .reg_offset = 2, .mask = MAX14577_INT3_CGMBC_MASK, },
{ .reg_offset = 2, .mask = MAX14577_INT3_OVP_MASK, },
{ .reg_offset = 2, .mask = MAX14577_INT3_MBCCHGERR_MASK, },
};
static const struct regmap_irq_chip max14577_irq_chip = {
.name = "max14577",
.status_base = MAX14577_REG_INT1,
.mask_base = MAX14577_REG_INTMASK1,
.mask_invert = 1,
.mask_invert = true,
.num_regs = 3,
.irqs = max14577_irqs,
.num_irqs = ARRAY_SIZE(max14577_irqs),
};
static const struct regmap_irq max77836_muic_irqs[] = {
/* INT1 interrupts */
{ .reg_offset = 0, .mask = MAX14577_INT1_ADC_MASK, },
{ .reg_offset = 0, .mask = MAX14577_INT1_ADCLOW_MASK, },
{ .reg_offset = 0, .mask = MAX14577_INT1_ADCERR_MASK, },
{ .reg_offset = 0, .mask = MAX77836_INT1_ADC1K_MASK, },
/* INT2 interrupts */
{ .reg_offset = 1, .mask = MAX14577_INT2_CHGTYP_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_CHGDETRUN_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_DCDTMR_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_DBCHG_MASK, },
{ .reg_offset = 1, .mask = MAX14577_INT2_VBVOLT_MASK, },
{ .reg_offset = 1, .mask = MAX77836_INT2_VIDRM_MASK, },
/* INT3 interrupts */
{ .reg_offset = 2, .mask = MAX14577_INT3_EOC_MASK, },
{ .reg_offset = 2, .mask = MAX14577_INT3_CGMBC_MASK, },
{ .reg_offset = 2, .mask = MAX14577_INT3_OVP_MASK, },
{ .reg_offset = 2, .mask = MAX14577_INT3_MBCCHGERR_MASK, },
};
static const struct regmap_irq_chip max77836_muic_irq_chip = {
.name = "max77836-muic",
.status_base = MAX14577_REG_INT1,
.mask_base = MAX14577_REG_INTMASK1,
.mask_invert = true,
.num_regs = 3,
.irqs = max77836_muic_irqs,
.num_irqs = ARRAY_SIZE(max77836_muic_irqs),
};
static const struct regmap_irq max77836_pmic_irqs[] = {
{ .reg_offset = 0, .mask = MAX77836_TOPSYS_INT_T120C_MASK, },
{ .reg_offset = 0, .mask = MAX77836_TOPSYS_INT_T140C_MASK, },
};
static const struct regmap_irq_chip max77836_pmic_irq_chip = {
.name = "max77836-pmic",
.status_base = MAX77836_PMIC_REG_TOPSYS_INT,
.mask_base = MAX77836_PMIC_REG_TOPSYS_INT_MASK,
.mask_invert = false,
.num_regs = 1,
.irqs = max77836_pmic_irqs,
.num_irqs = ARRAY_SIZE(max77836_pmic_irqs),
};
static void max14577_print_dev_type(struct max14577 *max14577)
{
u8 reg_data, vendor_id, device_id;
int ret;
ret = max14577_read_reg(max14577->regmap, MAX14577_REG_DEVICEID,
&reg_data);
if (ret) {
dev_err(max14577->dev,
"Failed to read DEVICEID register: %d\n", ret);
return;
}
vendor_id = ((reg_data & DEVID_VENDORID_MASK) >>
DEVID_VENDORID_SHIFT);
device_id = ((reg_data & DEVID_DEVICEID_MASK) >>
DEVID_DEVICEID_SHIFT);
dev_info(max14577->dev, "Device type: %u (ID: 0x%x, vendor: 0x%x)\n",
max14577->dev_type, device_id, vendor_id);
}
/*
* Max77836 specific initialization code for driver probe.
* Adds new I2C dummy device, regmap and regmap IRQ chip.
* Unmasks Interrupt Source register.
*
* On success returns 0.
* On failure returns errno and reverts any changes done so far (e.g. remove
* I2C dummy device), except masking the INT SRC register.
*/
static int max77836_init(struct max14577 *max14577)
{
int ret;
u8 intsrc_mask;
max14577->i2c_pmic = i2c_new_dummy(max14577->i2c->adapter,
I2C_ADDR_PMIC);
if (!max14577->i2c_pmic) {
dev_err(max14577->dev, "Failed to register PMIC I2C device\n");
return -ENODEV;
}
i2c_set_clientdata(max14577->i2c_pmic, max14577);
max14577->regmap_pmic = devm_regmap_init_i2c(max14577->i2c_pmic,
&max77836_pmic_regmap_config);
if (IS_ERR(max14577->regmap_pmic)) {
ret = PTR_ERR(max14577->regmap_pmic);
dev_err(max14577->dev, "Failed to allocate PMIC register map: %d\n",
ret);
goto err;
}
/* Un-mask MAX77836 Interrupt Source register */
ret = max14577_read_reg(max14577->regmap_pmic,
MAX77836_PMIC_REG_INTSRC_MASK, &intsrc_mask);
if (ret < 0) {
dev_err(max14577->dev, "Failed to read PMIC register\n");
goto err;
}
intsrc_mask &= ~(MAX77836_INTSRC_MASK_TOP_INT_MASK);
intsrc_mask &= ~(MAX77836_INTSRC_MASK_MUIC_CHG_INT_MASK);
ret = max14577_write_reg(max14577->regmap_pmic,
MAX77836_PMIC_REG_INTSRC_MASK, intsrc_mask);
if (ret < 0) {
dev_err(max14577->dev, "Failed to write PMIC register\n");
goto err;
}
ret = regmap_add_irq_chip(max14577->regmap_pmic, max14577->irq,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT | IRQF_SHARED,
0, &max77836_pmic_irq_chip,
&max14577->irq_data_pmic);
if (ret != 0) {
dev_err(max14577->dev, "Failed to request PMIC IRQ %d: %d\n",
max14577->irq, ret);
goto err;
}
return 0;
err:
i2c_unregister_device(max14577->i2c_pmic);
return ret;
}
/*
* Max77836 specific de-initialization code for driver remove.
*/
static void max77836_remove(struct max14577 *max14577)
{
regmap_del_irq_chip(max14577->irq, max14577->irq_data_pmic);
i2c_unregister_device(max14577->i2c_pmic);
}
static int max14577_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct max14577 *max14577;
struct max14577_platform_data *pdata = dev_get_platdata(&i2c->dev);
struct device_node *np = i2c->dev.of_node;
u8 reg_data;
int ret = 0;
const struct regmap_irq_chip *irq_chip;
struct mfd_cell *mfd_devs;
unsigned int mfd_devs_size;
int irq_flags;
if (np) {
pdata = devm_kzalloc(&i2c->dev, sizeof(*pdata), GFP_KERNEL);
......@@ -113,7 +317,8 @@ static int max14577_i2c_probe(struct i2c_client *i2c,
max14577->i2c = i2c;
max14577->irq = i2c->irq;
max14577->regmap = devm_regmap_init_i2c(i2c, &max14577_regmap_config);
max14577->regmap = devm_regmap_init_i2c(i2c,
&max14577_muic_regmap_config);
if (IS_ERR(max14577->regmap)) {
ret = PTR_ERR(max14577->regmap);
dev_err(max14577->dev, "Failed to allocate register map: %d\n",
......@@ -121,23 +326,36 @@ static int max14577_i2c_probe(struct i2c_client *i2c,
return ret;
}
ret = max14577_read_reg(max14577->regmap, MAX14577_REG_DEVICEID,
&reg_data);
if (ret) {
dev_err(max14577->dev, "Device not found on this channel: %d\n",
ret);
return ret;
if (np) {
const struct of_device_id *of_id;
of_id = of_match_device(max14577_dt_match, &i2c->dev);
if (of_id)
max14577->dev_type = (unsigned int)of_id->data;
} else {
max14577->dev_type = id->driver_data;
}
max14577_print_dev_type(max14577);
switch (max14577->dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
irq_chip = &max77836_muic_irq_chip;
mfd_devs = max77836_devs;
mfd_devs_size = ARRAY_SIZE(max77836_devs);
irq_flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT | IRQF_SHARED;
break;
case MAXIM_DEVICE_TYPE_MAX14577:
default:
irq_chip = &max14577_irq_chip;
mfd_devs = max14577_devs;
mfd_devs_size = ARRAY_SIZE(max14577_devs);
irq_flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
break;
}
max14577->vendor_id = ((reg_data & DEVID_VENDORID_MASK) >>
DEVID_VENDORID_SHIFT);
max14577->device_id = ((reg_data & DEVID_DEVICEID_MASK) >>
DEVID_DEVICEID_SHIFT);
dev_info(max14577->dev, "Device ID: 0x%x, vendor: 0x%x\n",
max14577->device_id, max14577->vendor_id);
ret = regmap_add_irq_chip(max14577->regmap, max14577->irq,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT, 0,
&max14577_irq_chip,
irq_flags, 0, irq_chip,
&max14577->irq_data);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n",
......@@ -145,8 +363,15 @@ static int max14577_i2c_probe(struct i2c_client *i2c,
return ret;
}
ret = mfd_add_devices(max14577->dev, -1, max14577_devs,
ARRAY_SIZE(max14577_devs), NULL, 0,
/* Max77836 specific initialization code (additional regmap) */
if (max14577->dev_type == MAXIM_DEVICE_TYPE_MAX77836) {
ret = max77836_init(max14577);
if (ret < 0)
goto err_max77836;
}
ret = mfd_add_devices(max14577->dev, -1, mfd_devs,
mfd_devs_size, NULL, 0,
regmap_irq_get_domain(max14577->irq_data));
if (ret < 0)
goto err_mfd;
......@@ -156,6 +381,9 @@ static int max14577_i2c_probe(struct i2c_client *i2c,
return 0;
err_mfd:
if (max14577->dev_type == MAXIM_DEVICE_TYPE_MAX77836)
max77836_remove(max14577);
err_max77836:
regmap_del_irq_chip(max14577->irq, max14577->irq_data);
return ret;
......@@ -167,12 +395,15 @@ static int max14577_i2c_remove(struct i2c_client *i2c)
mfd_remove_devices(max14577->dev);
regmap_del_irq_chip(max14577->irq, max14577->irq_data);
if (max14577->dev_type == MAXIM_DEVICE_TYPE_MAX77836)
max77836_remove(max14577);
return 0;
}
static const struct i2c_device_id max14577_i2c_id[] = {
{ "max14577", 0 },
{ "max14577", MAXIM_DEVICE_TYPE_MAX14577, },
{ "max77836", MAXIM_DEVICE_TYPE_MAX77836, },
{ }
};
MODULE_DEVICE_TABLE(i2c, max14577_i2c_id);
......@@ -215,11 +446,6 @@ static int max14577_resume(struct device *dev)
}
#endif /* CONFIG_PM_SLEEP */
static struct of_device_id max14577_dt_match[] = {
{ .compatible = "maxim,max14577", },
{},
};
static SIMPLE_DEV_PM_OPS(max14577_pm, max14577_suspend, max14577_resume);
static struct i2c_driver max14577_i2c_driver = {
......@@ -236,6 +462,9 @@ static struct i2c_driver max14577_i2c_driver = {
static int __init max14577_i2c_init(void)
{
BUILD_BUG_ON(ARRAY_SIZE(max14577_i2c_id) != MAXIM_DEVICE_TYPE_NUM);
BUILD_BUG_ON(ARRAY_SIZE(max14577_dt_match) != MAXIM_DEVICE_TYPE_NUM);
return i2c_add_driver(&max14577_i2c_driver);
}
subsys_initcall(max14577_i2c_init);
......@@ -247,5 +476,5 @@ static void __exit max14577_i2c_exit(void)
module_exit(max14577_i2c_exit);
MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>, Krzysztof Kozlowski <k.kozlowski@samsung.com>");
MODULE_DESCRIPTION("MAXIM 14577 multi-function core driver");
MODULE_DESCRIPTION("Maxim 14577/77836 multi-function core driver");
MODULE_LICENSE("GPL");
drivers/regulator/Kconfig
浏览文件 @ a55d952a
......@@ -266,11 +266,12 @@ config REGULATOR_LP8788
This driver supports LP8788 voltage regulator chip.
config REGULATOR_MAX14577
tristate "Maxim 14577 regulator"
tristate "Maxim 14577/77836 regulator"
depends on MFD_MAX14577
help
This driver controls a Maxim 14577 regulator via I2C bus.
The regulators include safeout LDO and current regulator 'CHARGER'.
This driver controls a Maxim MAX14577/77836 regulator via I2C bus.
The MAX14577 regulators include safeout LDO and charger current
regulator. The MAX77836 has two additional LDOs.
config REGULATOR_MAX1586
tristate "Maxim 1586/1587 voltage regulator"
......
drivers/regulator/max14577.c
浏览文件 @ a55d952a
/*
* max14577.c - Regulator driver for the Maxim 14577
* max14577.c - Regulator driver for the Maxim 14577/77836
*
* Copyright (C) 2013,2014 Samsung Electronics
* Krzysztof Kozlowski <k.kozlowski@samsung.com>
......@@ -22,6 +22,42 @@
#include <linux/mfd/max14577-private.h>
#include <linux/regulator/of_regulator.h>
/*
* Valid limits of current for max14577 and max77836 chargers.
* They must correspond to MBCICHWRCL and MBCICHWRCH fields in CHGCTRL4
* register for given chipset.
*/
struct maxim_charger_current {
/* Minimal current, set in CHGCTRL4/MBCICHWRCL, uA */
unsigned int min;
/*
* Minimal current when high setting is active,
* set in CHGCTRL4/MBCICHWRCH, uA
*/
unsigned int high_start;
/* Value of one step in high setting, uA */
unsigned int high_step;
/* Maximum current of high setting, uA */
unsigned int max;
};
/* Table of valid charger currents for different Maxim chipsets */
static const struct maxim_charger_current maxim_charger_currents[] = {
[MAXIM_DEVICE_TYPE_UNKNOWN] = { 0, 0, 0, 0 },
[MAXIM_DEVICE_TYPE_MAX14577] = {
.min = MAX14577_REGULATOR_CURRENT_LIMIT_MIN,
.high_start = MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_START,
.high_step = MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_STEP,
.max = MAX14577_REGULATOR_CURRENT_LIMIT_MAX,
},
[MAXIM_DEVICE_TYPE_MAX77836] = {
.min = MAX77836_REGULATOR_CURRENT_LIMIT_MIN,
.high_start = MAX77836_REGULATOR_CURRENT_LIMIT_HIGH_START,
.high_step = MAX77836_REGULATOR_CURRENT_LIMIT_HIGH_STEP,
.max = MAX77836_REGULATOR_CURRENT_LIMIT_MAX,
},
};
static int max14577_reg_is_enabled(struct regulator_dev *rdev)
{
int rid = rdev_get_id(rdev);
......@@ -47,6 +83,9 @@ static int max14577_reg_get_current_limit(struct regulator_dev *rdev)
{
u8 reg_data;
struct regmap *rmap = rdev->regmap;
struct max14577 *max14577 = rdev_get_drvdata(rdev);
const struct maxim_charger_current *limits =
&maxim_charger_currents[max14577->dev_type];
if (rdev_get_id(rdev) != MAX14577_CHARGER)
return -EINVAL;
......@@ -54,12 +93,11 @@ static int max14577_reg_get_current_limit(struct regulator_dev *rdev)
max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL4, &reg_data);
if ((reg_data & CHGCTRL4_MBCICHWRCL_MASK) == 0)
return MAX14577_REGULATOR_CURRENT_LIMIT_MIN;
return limits->min;
reg_data = ((reg_data & CHGCTRL4_MBCICHWRCH_MASK) >>
CHGCTRL4_MBCICHWRCH_SHIFT);
return MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_START +
reg_data * MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_STEP;
return limits->high_start + reg_data * limits->high_step;
}
static int max14577_reg_set_current_limit(struct regulator_dev *rdev,
......@@ -67,33 +105,39 @@ static int max14577_reg_set_current_limit(struct regulator_dev *rdev,
{
int i, current_bits = 0xf;
u8 reg_data;
struct max14577 *max14577 = rdev_get_drvdata(rdev);
const struct maxim_charger_current *limits =
&maxim_charger_currents[max14577->dev_type];
if (rdev_get_id(rdev) != MAX14577_CHARGER)
return -EINVAL;
if (min_uA > MAX14577_REGULATOR_CURRENT_LIMIT_MAX ||
max_uA < MAX14577_REGULATOR_CURRENT_LIMIT_MIN)
if (min_uA > limits->max || max_uA < limits->min)
return -EINVAL;
if (max_uA < MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_START) {
/* Less than 200 mA, so set 90mA (turn only Low Bit off) */
if (max_uA < limits->high_start) {
/*
* Less than high_start,
* so set the minimal current (turn only Low Bit off)
*/
u8 reg_data = 0x0 << CHGCTRL4_MBCICHWRCL_SHIFT;
return max14577_update_reg(rdev->regmap,
MAX14577_CHG_REG_CHG_CTRL4,
CHGCTRL4_MBCICHWRCL_MASK, reg_data);
}
/* max_uA is in range: <LIMIT_HIGH_START, inifinite>, so search for
* valid current starting from LIMIT_MAX. */
for (i = MAX14577_REGULATOR_CURRENT_LIMIT_MAX;
i >= MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_START;
i -= MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_STEP) {
/*
* max_uA is in range: <high_start, inifinite>, so search for
* valid current starting from maximum current.
*/
for (i = limits->max; i >= limits->high_start; i -= limits->high_step) {
if (i <= max_uA)
break;
current_bits--;
}
BUG_ON(current_bits < 0); /* Cannot happen */
/* Turn Low Bit on (use range 200mA-950 mA) */
/* Turn Low Bit on (use range high_start-max)... */
reg_data = 0x1 << CHGCTRL4_MBCICHWRCL_SHIFT;
/* and set proper High Bits */
reg_data |= current_bits << CHGCTRL4_MBCICHWRCH_SHIFT;
......@@ -118,7 +162,7 @@ static struct regulator_ops max14577_charger_ops = {
.set_current_limit = max14577_reg_set_current_limit,
};
static const struct regulator_desc supported_regulators[] = {
static const struct regulator_desc max14577_supported_regulators[] = {
[MAX14577_SAFEOUT] = {
.name = "SAFEOUT",
.id = MAX14577_SAFEOUT,
......@@ -141,16 +185,88 @@ static const struct regulator_desc supported_regulators[] = {
},
};
static struct regulator_ops max77836_ldo_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
/* TODO: add .set_suspend_mode */
};
static const struct regulator_desc max77836_supported_regulators[] = {
[MAX14577_SAFEOUT] = {
.name = "SAFEOUT",
.id = MAX14577_SAFEOUT,
.ops = &max14577_safeout_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.n_voltages = 1,
.min_uV = MAX14577_REGULATOR_SAFEOUT_VOLTAGE,
.enable_reg = MAX14577_REG_CONTROL2,
.enable_mask = CTRL2_SFOUTORD_MASK,
},
[MAX14577_CHARGER] = {
.name = "CHARGER",
.id = MAX14577_CHARGER,
.ops = &max14577_charger_ops,
.type = REGULATOR_CURRENT,
.owner = THIS_MODULE,
.enable_reg = MAX14577_CHG_REG_CHG_CTRL2,
.enable_mask = CHGCTRL2_MBCHOSTEN_MASK,
},
[MAX77836_LDO1] = {
.name = "LDO1",
.id = MAX77836_LDO1,
.ops = &max77836_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.n_voltages = MAX77836_REGULATOR_LDO_VOLTAGE_STEPS_NUM,
.min_uV = MAX77836_REGULATOR_LDO_VOLTAGE_MIN,
.uV_step = MAX77836_REGULATOR_LDO_VOLTAGE_STEP,
.enable_reg = MAX77836_LDO_REG_CNFG1_LDO1,
.enable_mask = MAX77836_CNFG1_LDO_PWRMD_MASK,
.vsel_reg = MAX77836_LDO_REG_CNFG1_LDO1,
.vsel_mask = MAX77836_CNFG1_LDO_TV_MASK,
},
[MAX77836_LDO2] = {
.name = "LDO2",
.id = MAX77836_LDO2,
.ops = &max77836_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.n_voltages = MAX77836_REGULATOR_LDO_VOLTAGE_STEPS_NUM,
.min_uV = MAX77836_REGULATOR_LDO_VOLTAGE_MIN,
.uV_step = MAX77836_REGULATOR_LDO_VOLTAGE_STEP,
.enable_reg = MAX77836_LDO_REG_CNFG1_LDO2,
.enable_mask = MAX77836_CNFG1_LDO_PWRMD_MASK,
.vsel_reg = MAX77836_LDO_REG_CNFG1_LDO2,
.vsel_mask = MAX77836_CNFG1_LDO_TV_MASK,
},
};
#ifdef CONFIG_OF
static struct of_regulator_match max14577_regulator_matches[] = {
{ .name = "SAFEOUT", },
{ .name = "CHARGER", },
};
static int max14577_regulator_dt_parse_pdata(struct platform_device *pdev)
static struct of_regulator_match max77836_regulator_matches[] = {
{ .name = "SAFEOUT", },
{ .name = "CHARGER", },
{ .name = "LDO1", },
{ .name = "LDO2", },
};
static int max14577_regulator_dt_parse_pdata(struct platform_device *pdev,
enum maxim_device_type dev_type)
{
int ret;
struct device_node *np;
struct of_regulator_match *regulator_matches;
unsigned int regulator_matches_size;
np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
if (!np) {
......@@ -158,8 +274,19 @@ static int max14577_regulator_dt_parse_pdata(struct platform_device *pdev)
return -EINVAL;
}
ret = of_regulator_match(&pdev->dev, np, max14577_regulator_matches,
MAX14577_REG_MAX);
switch (dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
regulator_matches = max77836_regulator_matches;
regulator_matches_size = ARRAY_SIZE(max77836_regulator_matches);
break;
case MAXIM_DEVICE_TYPE_MAX14577:
default:
regulator_matches = max14577_regulator_matches;
regulator_matches_size = ARRAY_SIZE(max14577_regulator_matches);
}
ret = of_regulator_match(&pdev->dev, np, regulator_matches,
regulator_matches_size);
if (ret < 0)
dev_err(&pdev->dev, "Error parsing regulator init data: %d\n", ret);
else
......@@ -170,31 +297,74 @@ static int max14577_regulator_dt_parse_pdata(struct platform_device *pdev)
return ret;
}
static inline struct regulator_init_data *match_init_data(int index)
static inline struct regulator_init_data *match_init_data(int index,
enum maxim_device_type dev_type)
{
return max14577_regulator_matches[index].init_data;
switch (dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
return max77836_regulator_matches[index].init_data;
case MAXIM_DEVICE_TYPE_MAX14577:
default:
return max14577_regulator_matches[index].init_data;
}
}
static inline struct device_node *match_of_node(int index)
static inline struct device_node *match_of_node(int index,
enum maxim_device_type dev_type)
{
return max14577_regulator_matches[index].of_node;
switch (dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
return max77836_regulator_matches[index].of_node;
case MAXIM_DEVICE_TYPE_MAX14577:
default:
return max14577_regulator_matches[index].of_node;
}
}
#else /* CONFIG_OF */
static int max14577_regulator_dt_parse_pdata(struct platform_device *pdev)
static int max14577_regulator_dt_parse_pdata(struct platform_device *pdev,
enum maxim_device_type dev_type)
{
return 0;
}
static inline struct regulator_init_data *match_init_data(int index)
static inline struct regulator_init_data *match_init_data(int index,
enum maxim_device_type dev_type)
{
return NULL;
}
static inline struct device_node *match_of_node(int index)
static inline struct device_node *match_of_node(int index,
enum maxim_device_type dev_type)
{
return NULL;
}
#endif /* CONFIG_OF */
/**
* Registers for regulators of max77836 use different I2C slave addresses so
* different regmaps must be used for them.
*
* Returns proper regmap for accessing regulator passed by id.
*/
static struct regmap *max14577_get_regmap(struct max14577 *max14577,
int reg_id)
{
switch (max14577->dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
switch (reg_id) {
case MAX77836_SAFEOUT ... MAX77836_CHARGER:
return max14577->regmap;
default:
/* MAX77836_LDO1 ... MAX77836_LDO2 */
return max14577->regmap_pmic;
}
case MAXIM_DEVICE_TYPE_MAX14577:
default:
return max14577->regmap;
}
}
static int max14577_regulator_probe(struct platform_device *pdev)
{
......@@ -202,15 +372,29 @@ static int max14577_regulator_probe(struct platform_device *pdev)
struct max14577_platform_data *pdata = dev_get_platdata(max14577->dev);
int i, ret;
struct regulator_config config = {};
const struct regulator_desc *supported_regulators;
unsigned int supported_regulators_size;
enum maxim_device_type dev_type = max14577->dev_type;
ret = max14577_regulator_dt_parse_pdata(pdev);
ret = max14577_regulator_dt_parse_pdata(pdev, dev_type);
if (ret)
return ret;
switch (dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
supported_regulators = max77836_supported_regulators;
supported_regulators_size = ARRAY_SIZE(max77836_supported_regulators);
break;
case MAXIM_DEVICE_TYPE_MAX14577:
default:
supported_regulators = max14577_supported_regulators;
supported_regulators_size = ARRAY_SIZE(max14577_supported_regulators);
}
config.dev = &pdev->dev;
config.regmap = max14577->regmap;
config.driver_data = max14577;
for (i = 0; i < ARRAY_SIZE(supported_regulators); i++) {
for (i = 0; i < supported_regulators_size; i++) {
struct regulator_dev *regulator;
/*
* Index of supported_regulators[] is also the id and must
......@@ -220,17 +404,19 @@ static int max14577_regulator_probe(struct platform_device *pdev)
config.init_data = pdata->regulators[i].initdata;
config.of_node = pdata->regulators[i].of_node;
} else {
config.init_data = match_init_data(i);
config.of_node = match_of_node(i);
config.init_data = match_init_data(i, dev_type);
config.of_node = match_of_node(i, dev_type);
}
config.regmap = max14577_get_regmap(max14577,
supported_regulators[i].id);
regulator = devm_regulator_register(&pdev->dev,
&supported_regulators[i], &config);
if (IS_ERR(regulator)) {
ret = PTR_ERR(regulator);
dev_err(&pdev->dev,
"Regulator init failed for ID %d with error: %d\n",
i, ret);
"Regulator init failed for %d/%s with error: %d\n",
i, supported_regulators[i].name, ret);
return ret;
}
}
......@@ -238,20 +424,41 @@ static int max14577_regulator_probe(struct platform_device *pdev)
return ret;
}
static const struct platform_device_id max14577_regulator_id[] = {
{ "max14577-regulator", MAXIM_DEVICE_TYPE_MAX14577, },
{ "max77836-regulator", MAXIM_DEVICE_TYPE_MAX77836, },
{ }
};
MODULE_DEVICE_TABLE(platform, max14577_regulator_id);
static struct platform_driver max14577_regulator_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "max14577-regulator",
},
.probe = max14577_regulator_probe,
.probe = max14577_regulator_probe,
.id_table = max14577_regulator_id,
};
static int __init max14577_regulator_init(void)
{
/* Check for valid values for charger */
BUILD_BUG_ON(MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_START +
MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_STEP * 0xf !=
MAX14577_REGULATOR_CURRENT_LIMIT_MAX);
BUILD_BUG_ON(ARRAY_SIZE(supported_regulators) != MAX14577_REG_MAX);
BUILD_BUG_ON(MAX77836_REGULATOR_CURRENT_LIMIT_HIGH_START +
MAX77836_REGULATOR_CURRENT_LIMIT_HIGH_STEP * 0xf !=
MAX77836_REGULATOR_CURRENT_LIMIT_MAX);
/* Valid charger current values must be provided for each chipset */
BUILD_BUG_ON(ARRAY_SIZE(maxim_charger_currents) != MAXIM_DEVICE_TYPE_NUM);
BUILD_BUG_ON(ARRAY_SIZE(max14577_supported_regulators) != MAX14577_REGULATOR_NUM);
BUILD_BUG_ON(ARRAY_SIZE(max77836_supported_regulators) != MAX77836_REGULATOR_NUM);
BUILD_BUG_ON(MAX77836_REGULATOR_LDO_VOLTAGE_MIN +
(MAX77836_REGULATOR_LDO_VOLTAGE_STEP *
(MAX77836_REGULATOR_LDO_VOLTAGE_STEPS_NUM - 1)) !=
MAX77836_REGULATOR_LDO_VOLTAGE_MAX);
return platform_driver_register(&max14577_regulator_driver);
}
......@@ -264,6 +471,6 @@ static void __exit max14577_regulator_exit(void)
module_exit(max14577_regulator_exit);
MODULE_AUTHOR("Krzysztof Kozlowski <k.kozlowski@samsung.com>");
MODULE_DESCRIPTION("MAXIM 14577 regulator driver");
MODULE_DESCRIPTION("Maxim 14577/77836 regulator driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:max14577-regulator");
include/linux/mfd/max14577-private.h
浏览文件 @ a55d952a
/*
* max14577-private.h - Common API for the Maxim 14577 internal sub chip
* max14577-private.h - Common API for the Maxim 14577/77836 internal sub chip
*
* Copyright (C) 2013 Samsung Electrnoics
* Copyright (C) 2014 Samsung Electrnoics
* Chanwoo Choi <cw00.choi@samsung.com>
* Krzysztof Kozlowski <k.kozlowski@samsung.com>
*
......@@ -22,9 +22,19 @@
#include <linux/i2c.h>
#include <linux/regmap.h>
#define MAX14577_REG_INVALID (0xff)
#define I2C_ADDR_PMIC (0x46 >> 1)
#define I2C_ADDR_MUIC (0x4A >> 1)
#define I2C_ADDR_FG (0x6C >> 1)
/* Slave addr = 0x4A: Interrupt */
enum maxim_device_type {
MAXIM_DEVICE_TYPE_UNKNOWN = 0,
MAXIM_DEVICE_TYPE_MAX14577,
MAXIM_DEVICE_TYPE_MAX77836,
MAXIM_DEVICE_TYPE_NUM,
};
/* Slave addr = 0x4A: MUIC and Charger */
enum max14577_reg {
MAX14577_REG_DEVICEID = 0x00,
MAX14577_REG_INT1 = 0x01,
......@@ -74,20 +84,22 @@ enum max14577_muic_charger_type {
};
/* MAX14577 interrupts */
#define INT1_ADC_MASK (0x1 << 0)
#define INT1_ADCLOW_MASK (0x1 << 1)
#define INT1_ADCERR_MASK (0x1 << 2)
#define INT2_CHGTYP_MASK (0x1 << 0)
#define INT2_CHGDETRUN_MASK (0x1 << 1)
#define INT2_DCDTMR_MASK (0x1 << 2)
#define INT2_DBCHG_MASK (0x1 << 3)
#define INT2_VBVOLT_MASK (0x1 << 4)
#define INT3_EOC_MASK (0x1 << 0)
#define INT3_CGMBC_MASK (0x1 << 1)
#define INT3_OVP_MASK (0x1 << 2)
#define INT3_MBCCHGERR_MASK (0x1 << 3)
#define MAX14577_INT1_ADC_MASK BIT(0)
#define MAX14577_INT1_ADCLOW_MASK BIT(1)
#define MAX14577_INT1_ADCERR_MASK BIT(2)
#define MAX77836_INT1_ADC1K_MASK BIT(3)
#define MAX14577_INT2_CHGTYP_MASK BIT(0)
#define MAX14577_INT2_CHGDETRUN_MASK BIT(1)
#define MAX14577_INT2_DCDTMR_MASK BIT(2)
#define MAX14577_INT2_DBCHG_MASK BIT(3)
#define MAX14577_INT2_VBVOLT_MASK BIT(4)
#define MAX77836_INT2_VIDRM_MASK BIT(5)
#define MAX14577_INT3_EOC_MASK BIT(0)
#define MAX14577_INT3_CGMBC_MASK BIT(1)
#define MAX14577_INT3_OVP_MASK BIT(2)
#define MAX14577_INT3_MBCCHGERR_MASK BIT(3)
/* MAX14577 DEVICE ID register */
#define DEVID_VENDORID_SHIFT 0
......@@ -99,9 +111,11 @@ enum max14577_muic_charger_type {
#define STATUS1_ADC_SHIFT 0
#define STATUS1_ADCLOW_SHIFT 5
#define STATUS1_ADCERR_SHIFT 6
#define MAX77836_STATUS1_ADC1K_SHIFT 7
#define STATUS1_ADC_MASK (0x1f << STATUS1_ADC_SHIFT)
#define STATUS1_ADCLOW_MASK (0x1 << STATUS1_ADCLOW_SHIFT)
#define STATUS1_ADCERR_MASK (0x1 << STATUS1_ADCERR_SHIFT)
#define STATUS1_ADCLOW_MASK BIT(STATUS1_ADCLOW_SHIFT)
#define STATUS1_ADCERR_MASK BIT(STATUS1_ADCERR_SHIFT)
#define MAX77836_STATUS1_ADC1K_MASK BIT(MAX77836_STATUS1_ADC1K_SHIFT)
/* MAX14577 STATUS2 register */
#define STATUS2_CHGTYP_SHIFT 0
......@@ -109,11 +123,13 @@ enum max14577_muic_charger_type {
#define STATUS2_DCDTMR_SHIFT 4
#define STATUS2_DBCHG_SHIFT 5
#define STATUS2_VBVOLT_SHIFT 6
#define MAX77836_STATUS2_VIDRM_SHIFT 7
#define STATUS2_CHGTYP_MASK (0x7 << STATUS2_CHGTYP_SHIFT)
#define STATUS2_CHGDETRUN_MASK (0x1 << STATUS2_CHGDETRUN_SHIFT)
#define STATUS2_DCDTMR_MASK (0x1 << STATUS2_DCDTMR_SHIFT)
#define STATUS2_DBCHG_MASK (0x1 << STATUS2_DBCHG_SHIFT)
#define STATUS2_VBVOLT_MASK (0x1 << STATUS2_VBVOLT_SHIFT)
#define STATUS2_CHGDETRUN_MASK BIT(STATUS2_CHGDETRUN_SHIFT)
#define STATUS2_DCDTMR_MASK BIT(STATUS2_DCDTMR_SHIFT)
#define STATUS2_DBCHG_MASK BIT(STATUS2_DBCHG_SHIFT)
#define STATUS2_VBVOLT_MASK BIT(STATUS2_VBVOLT_SHIFT)
#define MAX77836_STATUS2_VIDRM_MASK BIT(MAX77836_STATUS2_VIDRM_SHIFT)
/* MAX14577 CONTROL1 register */
#define COMN1SW_SHIFT 0
......@@ -122,8 +138,8 @@ enum max14577_muic_charger_type {
#define IDBEN_SHIFT 7
#define COMN1SW_MASK (0x7 << COMN1SW_SHIFT)
#define COMP2SW_MASK (0x7 << COMP2SW_SHIFT)
#define MICEN_MASK (0x1 << MICEN_SHIFT)
#define IDBEN_MASK (0x1 << IDBEN_SHIFT)
#define MICEN_MASK BIT(MICEN_SHIFT)
#define IDBEN_MASK BIT(IDBEN_SHIFT)
#define CLEAR_IDBEN_MICEN_MASK (COMN1SW_MASK | COMP2SW_MASK)
#define CTRL1_SW_USB ((1 << COMP2SW_SHIFT) \
| (1 << COMN1SW_SHIFT))
......@@ -143,14 +159,14 @@ enum max14577_muic_charger_type {
#define CTRL2_ACCDET_SHIFT (5)
#define CTRL2_USBCPINT_SHIFT (6)
#define CTRL2_RCPS_SHIFT (7)
#define CTRL2_LOWPWR_MASK (0x1 << CTRL2_LOWPWR_SHIFT)
#define CTRL2_ADCEN_MASK (0x1 << CTRL2_ADCEN_SHIFT)
#define CTRL2_CPEN_MASK (0x1 << CTRL2_CPEN_SHIFT)
#define CTRL2_SFOUTASRT_MASK (0x1 << CTRL2_SFOUTASRT_SHIFT)
#define CTRL2_SFOUTORD_MASK (0x1 << CTRL2_SFOUTORD_SHIFT)
#define CTRL2_ACCDET_MASK (0x1 << CTRL2_ACCDET_SHIFT)
#define CTRL2_USBCPINT_MASK (0x1 << CTRL2_USBCPINT_SHIFT)
#define CTRL2_RCPS_MASK (0x1 << CTR2_RCPS_SHIFT)
#define CTRL2_LOWPWR_MASK BIT(CTRL2_LOWPWR_SHIFT)
#define CTRL2_ADCEN_MASK BIT(CTRL2_ADCEN_SHIFT)
#define CTRL2_CPEN_MASK BIT(CTRL2_CPEN_SHIFT)
#define CTRL2_SFOUTASRT_MASK BIT(CTRL2_SFOUTASRT_SHIFT)
#define CTRL2_SFOUTORD_MASK BIT(CTRL2_SFOUTORD_SHIFT)
#define CTRL2_ACCDET_MASK BIT(CTRL2_ACCDET_SHIFT)
#define CTRL2_USBCPINT_MASK BIT(CTRL2_USBCPINT_SHIFT)
#define CTRL2_RCPS_MASK BIT(CTRL2_RCPS_SHIFT)
#define CTRL2_CPEN1_LOWPWR0 ((1 << CTRL2_CPEN_SHIFT) | \
(0 << CTRL2_LOWPWR_SHIFT))
......@@ -198,14 +214,14 @@ enum max14577_charger_reg {
#define CDETCTRL1_DBEXIT_SHIFT 5
#define CDETCTRL1_DBIDLE_SHIFT 6
#define CDETCTRL1_CDPDET_SHIFT 7
#define CDETCTRL1_CHGDETEN_MASK (0x1 << CDETCTRL1_CHGDETEN_SHIFT)
#define CDETCTRL1_CHGTYPMAN_MASK (0x1 << CDETCTRL1_CHGTYPMAN_SHIFT)
#define CDETCTRL1_DCDEN_MASK (0x1 << CDETCTRL1_DCDEN_SHIFT)
#define CDETCTRL1_DCD2SCT_MASK (0x1 << CDETCTRL1_DCD2SCT_SHIFT)
#define CDETCTRL1_DCHKTM_MASK (0x1 << CDETCTRL1_DCHKTM_SHIFT)
#define CDETCTRL1_DBEXIT_MASK (0x1 << CDETCTRL1_DBEXIT_SHIFT)
#define CDETCTRL1_DBIDLE_MASK (0x1 << CDETCTRL1_DBIDLE_SHIFT)
#define CDETCTRL1_CDPDET_MASK (0x1 << CDETCTRL1_CDPDET_SHIFT)
#define CDETCTRL1_CHGDETEN_MASK BIT(CDETCTRL1_CHGDETEN_SHIFT)
#define CDETCTRL1_CHGTYPMAN_MASK BIT(CDETCTRL1_CHGTYPMAN_SHIFT)
#define CDETCTRL1_DCDEN_MASK BIT(CDETCTRL1_DCDEN_SHIFT)
#define CDETCTRL1_DCD2SCT_MASK BIT(CDETCTRL1_DCD2SCT_SHIFT)
#define CDETCTRL1_DCHKTM_MASK BIT(CDETCTRL1_DCHKTM_SHIFT)
#define CDETCTRL1_DBEXIT_MASK BIT(CDETCTRL1_DBEXIT_SHIFT)
#define CDETCTRL1_DBIDLE_MASK BIT(CDETCTRL1_DBIDLE_SHIFT)
#define CDETCTRL1_CDPDET_MASK BIT(CDETCTRL1_CDPDET_SHIFT)
/* MAX14577 CHGCTRL1 register */
#define CHGCTRL1_TCHW_SHIFT 4
......@@ -213,9 +229,9 @@ enum max14577_charger_reg {
/* MAX14577 CHGCTRL2 register */
#define CHGCTRL2_MBCHOSTEN_SHIFT 6
#define CHGCTRL2_MBCHOSTEN_MASK (0x1 << CHGCTRL2_MBCHOSTEN_SHIFT)
#define CHGCTRL2_MBCHOSTEN_MASK BIT(CHGCTRL2_MBCHOSTEN_SHIFT)
#define CHGCTRL2_VCHGR_RC_SHIFT 7
#define CHGCTRL2_VCHGR_RC_MASK (0x1 << CHGCTRL2_VCHGR_RC_SHIFT)
#define CHGCTRL2_VCHGR_RC_MASK BIT(CHGCTRL2_VCHGR_RC_SHIFT)
/* MAX14577 CHGCTRL3 register */
#define CHGCTRL3_MBCCVWRC_SHIFT 0
......@@ -225,7 +241,7 @@ enum max14577_charger_reg {
#define CHGCTRL4_MBCICHWRCH_SHIFT 0
#define CHGCTRL4_MBCICHWRCH_MASK (0xf << CHGCTRL4_MBCICHWRCH_SHIFT)
#define CHGCTRL4_MBCICHWRCL_SHIFT 4
#define CHGCTRL4_MBCICHWRCL_MASK (0x1 << CHGCTRL4_MBCICHWRCL_SHIFT)
#define CHGCTRL4_MBCICHWRCL_MASK BIT(CHGCTRL4_MBCICHWRCL_SHIFT)
/* MAX14577 CHGCTRL5 register */
#define CHGCTRL5_EOCS_SHIFT 0
......@@ -233,7 +249,7 @@ enum max14577_charger_reg {
/* MAX14577 CHGCTRL6 register */
#define CHGCTRL6_AUTOSTOP_SHIFT 5
#define CHGCTRL6_AUTOSTOP_MASK (0x1 << CHGCTRL6_AUTOSTOP_SHIFT)
#define CHGCTRL6_AUTOSTOP_MASK BIT(CHGCTRL6_AUTOSTOP_SHIFT)
/* MAX14577 CHGCTRL7 register */
#define CHGCTRL7_OTPCGHCVS_SHIFT 0
......@@ -245,14 +261,111 @@ enum max14577_charger_reg {
#define MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_STEP 50000
#define MAX14577_REGULATOR_CURRENT_LIMIT_MAX 950000
/* MAX77836 regulator current limits (as in CHGCTRL4 register), uA */
#define MAX77836_REGULATOR_CURRENT_LIMIT_MIN 45000
#define MAX77836_REGULATOR_CURRENT_LIMIT_HIGH_START 100000
#define MAX77836_REGULATOR_CURRENT_LIMIT_HIGH_STEP 25000
#define MAX77836_REGULATOR_CURRENT_LIMIT_MAX 475000
/* MAX14577 regulator SFOUT LDO voltage, fixed, uV */
#define MAX14577_REGULATOR_SAFEOUT_VOLTAGE 4900000
/* MAX77836 regulator LDOx voltage, uV */
#define MAX77836_REGULATOR_LDO_VOLTAGE_MIN 800000
#define MAX77836_REGULATOR_LDO_VOLTAGE_MAX 3950000
#define MAX77836_REGULATOR_LDO_VOLTAGE_STEP 50000
#define MAX77836_REGULATOR_LDO_VOLTAGE_STEPS_NUM 64
/* Slave addr = 0x46: PMIC */
enum max77836_pmic_reg {
MAX77836_PMIC_REG_PMIC_ID = 0x20,
MAX77836_PMIC_REG_PMIC_REV = 0x21,
MAX77836_PMIC_REG_INTSRC = 0x22,
MAX77836_PMIC_REG_INTSRC_MASK = 0x23,
MAX77836_PMIC_REG_TOPSYS_INT = 0x24,
MAX77836_PMIC_REG_TOPSYS_INT_MASK = 0x26,
MAX77836_PMIC_REG_TOPSYS_STAT = 0x28,
MAX77836_PMIC_REG_MRSTB_CNTL = 0x2A,
MAX77836_PMIC_REG_LSCNFG = 0x2B,
MAX77836_LDO_REG_CNFG1_LDO1 = 0x51,
MAX77836_LDO_REG_CNFG2_LDO1 = 0x52,
MAX77836_LDO_REG_CNFG1_LDO2 = 0x53,
MAX77836_LDO_REG_CNFG2_LDO2 = 0x54,
MAX77836_LDO_REG_CNFG_LDO_BIAS = 0x55,
MAX77836_COMP_REG_COMP1 = 0x60,
MAX77836_PMIC_REG_END,
};
#define MAX77836_INTSRC_MASK_TOP_INT_SHIFT 1
#define MAX77836_INTSRC_MASK_MUIC_CHG_INT_SHIFT 3
#define MAX77836_INTSRC_MASK_TOP_INT_MASK BIT(MAX77836_INTSRC_MASK_TOP_INT_SHIFT)
#define MAX77836_INTSRC_MASK_MUIC_CHG_INT_MASK BIT(MAX77836_INTSRC_MASK_MUIC_CHG_INT_SHIFT)
/* MAX77836 PMIC interrupts */
#define MAX77836_TOPSYS_INT_T120C_SHIFT 0
#define MAX77836_TOPSYS_INT_T140C_SHIFT 1
#define MAX77836_TOPSYS_INT_T120C_MASK BIT(MAX77836_TOPSYS_INT_T120C_SHIFT)
#define MAX77836_TOPSYS_INT_T140C_MASK BIT(MAX77836_TOPSYS_INT_T140C_SHIFT)
/* LDO1/LDO2 CONFIG1 register */
#define MAX77836_CNFG1_LDO_PWRMD_SHIFT 6
#define MAX77836_CNFG1_LDO_TV_SHIFT 0
#define MAX77836_CNFG1_LDO_PWRMD_MASK (0x3 << MAX77836_CNFG1_LDO_PWRMD_SHIFT)
#define MAX77836_CNFG1_LDO_TV_MASK (0x3f << MAX77836_CNFG1_LDO_TV_SHIFT)
/* LDO1/LDO2 CONFIG2 register */
#define MAX77836_CNFG2_LDO_OVCLMPEN_SHIFT 7
#define MAX77836_CNFG2_LDO_ALPMEN_SHIFT 6
#define MAX77836_CNFG2_LDO_COMP_SHIFT 4
#define MAX77836_CNFG2_LDO_POK_SHIFT 3
#define MAX77836_CNFG2_LDO_ADE_SHIFT 1
#define MAX77836_CNFG2_LDO_SS_SHIFT 0
#define MAX77836_CNFG2_LDO_OVCLMPEN_MASK BIT(MAX77836_CNFG2_LDO_OVCLMPEN_SHIFT)
#define MAX77836_CNFG2_LDO_ALPMEN_MASK BIT(MAX77836_CNFG2_LDO_ALPMEN_SHIFT)
#define MAX77836_CNFG2_LDO_COMP_MASK (0x3 << MAX77836_CNFG2_LDO_COMP_SHIFT)
#define MAX77836_CNFG2_LDO_POK_MASK BIT(MAX77836_CNFG2_LDO_POK_SHIFT)
#define MAX77836_CNFG2_LDO_ADE_MASK BIT(MAX77836_CNFG2_LDO_ADE_SHIFT)
#define MAX77836_CNFG2_LDO_SS_MASK BIT(MAX77836_CNFG2_LDO_SS_SHIFT)
/* Slave addr = 0x6C: Fuel-Gauge/Battery */
enum max77836_fg_reg {
MAX77836_FG_REG_VCELL_MSB = 0x02,
MAX77836_FG_REG_VCELL_LSB = 0x03,
MAX77836_FG_REG_SOC_MSB = 0x04,
MAX77836_FG_REG_SOC_LSB = 0x05,
MAX77836_FG_REG_MODE_H = 0x06,
MAX77836_FG_REG_MODE_L = 0x07,
MAX77836_FG_REG_VERSION_MSB = 0x08,
MAX77836_FG_REG_VERSION_LSB = 0x09,
MAX77836_FG_REG_HIBRT_H = 0x0A,
MAX77836_FG_REG_HIBRT_L = 0x0B,
MAX77836_FG_REG_CONFIG_H = 0x0C,
MAX77836_FG_REG_CONFIG_L = 0x0D,
MAX77836_FG_REG_VALRT_MIN = 0x14,
MAX77836_FG_REG_VALRT_MAX = 0x15,
MAX77836_FG_REG_CRATE_MSB = 0x16,
MAX77836_FG_REG_CRATE_LSB = 0x17,
MAX77836_FG_REG_VRESET = 0x18,
MAX77836_FG_REG_FGID = 0x19,
MAX77836_FG_REG_STATUS_H = 0x1A,
MAX77836_FG_REG_STATUS_L = 0x1B,
/*
* TODO: TABLE registers
* TODO: CMD register
*/
MAX77836_FG_REG_END,
};
enum max14577_irq {
/* INT1 */
MAX14577_IRQ_INT1_ADC,
MAX14577_IRQ_INT1_ADCLOW,
MAX14577_IRQ_INT1_ADCERR,
MAX77836_IRQ_INT1_ADC1K,
/* INT2 */
MAX14577_IRQ_INT2_CHGTYP,
......@@ -260,6 +373,7 @@ enum max14577_irq {
MAX14577_IRQ_INT2_DCDTMR,
MAX14577_IRQ_INT2_DBCHG,
MAX14577_IRQ_INT2_VBVOLT,
MAX77836_IRQ_INT2_VIDRM,
/* INT3 */
MAX14577_IRQ_INT3_EOC,
......@@ -267,21 +381,25 @@ enum max14577_irq {
MAX14577_IRQ_INT3_OVP,
MAX14577_IRQ_INT3_MBCCHGERR,
/* TOPSYS_INT, only MAX77836 */
MAX77836_IRQ_TOPSYS_T140C,
MAX77836_IRQ_TOPSYS_T120C,
MAX14577_IRQ_NUM,
};
struct max14577 {
struct device *dev;
struct i2c_client *i2c; /* Slave addr = 0x4A */
struct i2c_client *i2c_pmic; /* Slave addr = 0x46 */
enum maxim_device_type dev_type;
struct regmap *regmap;
struct regmap *regmap; /* For MUIC and Charger */
struct regmap *regmap_pmic;
struct regmap_irq_chip_data *irq_data;
struct regmap_irq_chip_data *irq_data; /* For MUIC and Charger */
struct regmap_irq_chip_data *irq_data_pmic;
int irq;
/* Device ID */
u8 vendor_id; /* Vendor Identification */
u8 device_id; /* Chip Version */
};
/* MAX14577 shared regmap API function */
......
include/linux/mfd/max14577.h
浏览文件 @ a55d952a
/*
* max14577.h - Driver for the Maxim 14577
* max14577.h - Driver for the Maxim 14577/77836
*
* Copyright (C) 2013 Samsung Electrnoics
* Copyright (C) 2014 Samsung Electrnoics
* Chanwoo Choi <cw00.choi@samsung.com>
* Krzysztof Kozlowski <k.kozlowski@samsung.com>
*
......@@ -20,6 +20,9 @@
* MAX14577 has MUIC, Charger devices.
* The devices share the same I2C bus and interrupt line
* included in this mfd driver.
*
* MAX77836 has additional PMIC and Fuel-Gauge on different I2C slave
* addresses.
*/
#ifndef __MAX14577_H__
......@@ -32,7 +35,17 @@ enum max14577_regulators {
MAX14577_SAFEOUT = 0,
MAX14577_CHARGER,
MAX14577_REG_MAX,
MAX14577_REGULATOR_NUM,
};
/* MAX77836 regulator IDs */
enum max77836_regulators {
MAX77836_SAFEOUT = 0,
MAX77836_CHARGER,
MAX77836_LDO1,
MAX77836_LDO2,
MAX77836_REGULATOR_NUM,
};
struct max14577_regulator_platform_data {
......
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