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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2025-2026 RISCstar Ltd.
*/
#include <dm.h>
#include <power/pmic.h>
#include <power/spacemit_p1.h>
static int pmic_p1_reg_count(struct udevice *dev)
{
return P1_MAX_REGS;
}
static int pmic_p1_write(struct udevice *dev, uint reg, const u8 *buffer,
int len)
{
int ret;
ret = dm_i2c_write(dev, reg, buffer, len);
if (ret)
pr_err("%s write error on register %02x\n", dev->name, reg);
return ret;
}
static int pmic_p1_read(struct udevice *dev, uint reg, u8 *buffer,
int len)
{
int ret;
ret = dm_i2c_read(dev, reg, buffer, len);
if (ret)
pr_err("%s read error on register %02x\n", dev->name, reg);
return ret;
}
static const struct pmic_child_info p1_children_info[] = {
{ .prefix = "buck", .driver = P1_BUCK_DRIVER },
{ .prefix = "aldo", .driver = P1_ALDO_DRIVER },
{ .prefix = "dldo", .driver = P1_DLDO_DRIVER },
{ },
};
static int pmic_p1_bind(struct udevice *dev)
{
const struct pmic_child_info *p1_children_info =
(struct pmic_child_info *)dev_get_driver_data(dev);
ofnode regulators_node;
int children;
regulators_node = dev_read_subnode(dev, "regulators");
if (!ofnode_valid(regulators_node)) {
debug("%s regulators subnode not found\n", dev->name);
return -EINVAL;
}
children = pmic_bind_children(dev, regulators_node,
p1_children_info);
if (!children)
debug("%s has no children (regulators)\n", dev->name);
return 0;
}
static int pmic_p1_probe(struct udevice *dev)
{
return 0;
}
static struct dm_pmic_ops pmic_p1_ops = {
.reg_count = pmic_p1_reg_count,
.read = pmic_p1_read,
.write = pmic_p1_write,
};
static const struct udevice_id pmic_p1_match[] = {
{
.compatible = "spacemit,p1",
.data = (ulong)&p1_children_info,
}, {
/* sentinel */
}
};
U_BOOT_DRIVER(pmic_p1) = {
.name = "pmic_p1",
.id = UCLASS_PMIC,
.of_match = pmic_p1_match,
.bind = pmic_p1_bind,
.probe = pmic_p1_probe,
.ops = &pmic_p1_ops,
};
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