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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2022 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
*/
#include <common.h>
#include <fdtdec.h>
#include <errno.h>
#include <dm.h>
#include <i2c.h>
#include <log.h>
#include <power/pmic.h>
#include <power/regulator.h>
#include <power/tps65219.h>
#include <dm/device.h>
static const struct pmic_child_info pmic_children_info[] = {
{ .prefix = "ldo", .driver = TPS65219_LDO_DRIVER },
{ .prefix = "buck", .driver = TPS65219_BUCK_DRIVER },
{ },
};
static int tps65219_reg_count(struct udevice *dev)
{
return 0x41;
}
static int tps65219_write(struct udevice *dev, uint reg, const uint8_t *buff,
int len)
{
if (dm_i2c_write(dev, reg, buff, len)) {
pr_err("write error to device: %p register: %#x!\n", dev, reg);
return -EIO;
}
return 0;
}
static int tps65219_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
{
if (dm_i2c_read(dev, reg, buff, len)) {
pr_err("read error from device: %p register: %#x!\n", dev, reg);
return -EIO;
}
return 0;
}
static int tps65219_bind(struct udevice *dev)
{
ofnode regulators_node;
int children;
regulators_node = dev_read_subnode(dev, "regulators");
if (!ofnode_valid(regulators_node)) {
debug("%s: %s regulators subnode not found!\n", __func__,
dev->name);
}
debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
children = pmic_bind_children(dev, regulators_node, pmic_children_info);
if (!children)
printf("%s: %s - no child found\n", __func__, dev->name);
/* Probe all the child devices */
return dm_scan_fdt_dev(dev);
}
static struct dm_pmic_ops tps65219_ops = {
.reg_count = tps65219_reg_count,
.read = tps65219_read,
.write = tps65219_write,
};
static const struct udevice_id tps65219_ids[] = {
{ .compatible = "ti,tps65219" },
{ }
};
U_BOOT_DRIVER(pmic_tps65219) = {
.name = "tps65219_pmic",
.id = UCLASS_PMIC,
.of_match = tps65219_ids,
.bind = tps65219_bind,
.ops = &tps65219_ops,
};
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