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// SPDX-License-Identifier: GPL-2.0-only
/*
* I2C 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.
*
* This driver supports the I2C variants.
*
* Copyright (C) 2014 Carlo Caione
*
* Author: Carlo Caione <carlo@caione.org>
*/
#include <common.h>
#include <of.h>
#include <linux/err.h>
#include <i2c/i2c.h>
#include <module.h>
#include <linux/mfd/axp20x.h>
#include <regmap.h>
static int axp20x_i2c_probe(struct device_d *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct axp20x_dev *axp20x;
int ret;
axp20x = xzalloc(sizeof(*axp20x));
axp20x->dev = dev;
ret = axp20x_match_device(axp20x);
if (ret)
return ret;
axp20x->regmap = regmap_init_i2c(client, axp20x->regmap_cfg);
if (IS_ERR(axp20x->regmap))
return dev_err_probe(dev, PTR_ERR(axp20x->regmap),
"regmap init failed\n");
ret = axp20x_device_probe(axp20x);
if (ret)
return ret;
return regmap_register_cdev(axp20x->regmap, NULL);
}
static const struct of_device_id axp20x_i2c_of_match[] = {
{ .compatible = "x-powers,axp152", .data = (void *)AXP152_ID },
{ .compatible = "x-powers,axp202", .data = (void *)AXP202_ID },
{ .compatible = "x-powers,axp209", .data = (void *)AXP209_ID },
{ .compatible = "x-powers,axp221", .data = (void *)AXP221_ID },
{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
{ .compatible = "x-powers,axp803", .data = (void *)AXP803_ID },
{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
{ },
};
static struct driver_d axp20x_i2c_driver = {
.name = "axp20x-i2c",
.probe = axp20x_i2c_probe,
.of_compatible = DRV_OF_COMPAT(axp20x_i2c_of_match),
};
coredevice_i2c_driver(axp20x_i2c_driver);
MODULE_DESCRIPTION("PMIC MFD I2C driver for AXP20X");
MODULE_AUTHOR("Carlo Caione <carlo@caione.org>");
MODULE_LICENSE("GPL");
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