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/*
* Base driver for Marvell 88PM8607
*
* Copyright (C) 2009 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.com>
*
* 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/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/88pm8607.h>
#define PM8607_REG_RESOURCE(_start, _end) \
{ \
.start = PM8607_##_start, \
.end = PM8607_##_end, \
.flags = IORESOURCE_IO, \
}
static struct resource pm8607_regulator_resources[] = {
PM8607_REG_RESOURCE(BUCK1, BUCK1),
PM8607_REG_RESOURCE(BUCK2, BUCK2),
PM8607_REG_RESOURCE(BUCK3, BUCK3),
PM8607_REG_RESOURCE(LDO1, LDO1),
PM8607_REG_RESOURCE(LDO2, LDO2),
PM8607_REG_RESOURCE(LDO3, LDO3),
PM8607_REG_RESOURCE(LDO4, LDO4),
PM8607_REG_RESOURCE(LDO5, LDO5),
PM8607_REG_RESOURCE(LDO6, LDO6),
PM8607_REG_RESOURCE(LDO7, LDO7),
PM8607_REG_RESOURCE(LDO8, LDO8),
PM8607_REG_RESOURCE(LDO9, LDO9),
PM8607_REG_RESOURCE(LDO10, LDO10),
PM8607_REG_RESOURCE(LDO12, LDO12),
PM8607_REG_RESOURCE(LDO14, LDO14),
};
#define PM8607_REG_DEVS(_name, _id) \
{ \
.name = "88pm8607-" #_name, \
.num_resources = 1, \
.resources = &pm8607_regulator_resources[PM8607_ID_##_id], \
}
static struct mfd_cell pm8607_devs[] = {
PM8607_REG_DEVS(buck1, BUCK1),
PM8607_REG_DEVS(buck2, BUCK2),
PM8607_REG_DEVS(buck3, BUCK3),
PM8607_REG_DEVS(ldo1, LDO1),
PM8607_REG_DEVS(ldo2, LDO2),
PM8607_REG_DEVS(ldo3, LDO3),
PM8607_REG_DEVS(ldo4, LDO4),
PM8607_REG_DEVS(ldo5, LDO5),
PM8607_REG_DEVS(ldo6, LDO6),
PM8607_REG_DEVS(ldo7, LDO7),
PM8607_REG_DEVS(ldo8, LDO8),
PM8607_REG_DEVS(ldo9, LDO9),
PM8607_REG_DEVS(ldo10, LDO10),
PM8607_REG_DEVS(ldo12, LDO12),
PM8607_REG_DEVS(ldo14, LDO14),
};
int pm860x_device_init(struct pm8607_chip *chip,
struct pm8607_platform_data *pdata)
{
int i, count;
int ret;
ret = pm8607_reg_read(chip, PM8607_CHIP_ID);
if (ret < 0) {
dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
goto out;
}
if ((ret & PM8607_ID_MASK) == PM8607_ID)
dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
ret);
else {
dev_err(chip->dev, "Failed to detect Marvell 88PM8607. "
"Chip ID: %02x\n", ret);
goto out;
}
chip->chip_id = ret;
ret = pm8607_reg_read(chip, PM8607_BUCK3);
if (ret < 0) {
dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
goto out;
}
if (ret & PM8607_BUCK3_DOUBLE)
chip->buck3_double = 1;
ret = pm8607_reg_read(chip, PM8607_MISC1);
if (ret < 0) {
dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
goto out;
}
if (pdata->i2c_port == PI2C_PORT)
ret |= PM8607_MISC1_PI2C;
else
ret &= ~PM8607_MISC1_PI2C;
ret = pm8607_reg_write(chip, PM8607_MISC1, ret);
if (ret < 0) {
dev_err(chip->dev, "Failed to write MISC1 register: %d\n", ret);
goto out;
}
count = ARRAY_SIZE(pm8607_devs);
for (i = 0; i < count; i++) {
ret = mfd_add_devices(chip->dev, i, &pm8607_devs[i],
1, NULL, 0);
if (ret != 0) {
dev_err(chip->dev, "Failed to add subdevs\n");
goto out;
}
}
out:
return ret;
}
void pm8607_device_exit(struct pm8607_chip *chip)
{
mfd_remove_devices(chip->dev);
}
MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM8607");
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
MODULE_LICENSE("GPL");
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