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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) 2018 Theobroma Systems Design und Consulting GmbH
*/
#include <common.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
#include <i2c.h>
#include <power/pmic.h>
#include <power/regulator.h>
static int pmic_fan53555_reg_count(struct udevice *dev)
{
return 1;
};
static int pmic_fan53555_read(struct udevice *dev, uint reg,
u8 *buff, int len)
{
if (dm_i2c_read(dev, reg, buff, len)) {
pr_err("%s: read error for register: %#x!", dev->name, reg);
return -EIO;
}
return 0;
}
static int pmic_fan53555_write(struct udevice *dev, uint reg,
const u8 *buff, int len)
{
if (dm_i2c_write(dev, reg, buff, len)) {
pr_err("%s: write error for register: %#x!", dev->name, reg);
return -EIO;
}
return 0;
}
static int pmic_fan53555_bind(struct udevice *dev)
{
/*
* The FAN53555 has only a single regulator and therefore doesn't
* have a subnode. So we have to rebind a child device (the one
* regulator) here.
*/
const char *regulator_driver_name = "fan53555_regulator";
struct udevice *child;
struct driver *drv;
debug("%s\n", __func__);
drv = lists_driver_lookup_name(regulator_driver_name);
if (!drv) {
dev_err(dev, "no driver '%s'\n", regulator_driver_name);
return -ENOENT;
}
return device_bind_with_driver_data(dev, drv, "SW", 0,
dev_ofnode(dev), &child);
};
static struct dm_pmic_ops pmic_fan53555_ops = {
.reg_count = pmic_fan53555_reg_count,
.read = pmic_fan53555_read,
.write = pmic_fan53555_write,
};
static const struct udevice_id pmic_fan53555_match[] = {
{ .compatible = "fcs,fan53555" },
{ },
};
U_BOOT_DRIVER(pmic_fan53555) = {
.name = "pmic_fan53555",
.id = UCLASS_PMIC,
.of_match = pmic_fan53555_match,
.bind = pmic_fan53555_bind,
.ops = &pmic_fan53555_ops,
};
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