1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2020 Gateworks Corporation
10 #include <power/pmic.h>
11 #include <power/regulator.h>
12 #include <power/mp5416.h>
14 DECLARE_GLOBAL_DATA_PTR;
16 static const struct pmic_child_info pmic_children_info[] = {
18 { .prefix = "b", .driver = MP6416_REGULATOR_DRIVER },
20 { .prefix = "l", .driver = MP6416_REGULATOR_DRIVER },
24 static int mp5416_reg_count(struct udevice *dev)
26 return MP5416_NUM_OF_REGS - 1;
29 static int mp5416_write(struct udevice *dev, uint reg, const uint8_t *buff,
32 if (dm_i2c_write(dev, reg, buff, len)) {
33 pr_err("write error to device: %p register: %#x!", dev, reg);
40 static int mp5416_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
42 if (dm_i2c_read(dev, reg, buff, len)) {
43 pr_err("read error from device: %p register: %#x!", dev, reg);
50 static int mp5416_bind(struct udevice *dev)
53 ofnode regulators_node;
55 debug("%s %s\n", __func__, dev->name);
56 regulators_node = dev_read_subnode(dev, "regulators");
57 if (!ofnode_valid(regulators_node)) {
58 debug("%s: %s regulators subnode not found!\n", __func__,
63 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
65 children = pmic_bind_children(dev, regulators_node, pmic_children_info);
67 debug("%s: %s - no child found\n", __func__, dev->name);
69 /* Always return success for this device */
73 static int mp5416_probe(struct udevice *dev)
75 debug("%s %s\n", __func__, dev->name);
80 static struct dm_pmic_ops mp5416_ops = {
81 .reg_count = mp5416_reg_count,
83 .write = mp5416_write,
86 static const struct udevice_id mp5416_ids[] = {
87 { .compatible = "mps,mp5416", },
91 U_BOOT_DRIVER(pmic_mp5416) = {
92 .name = "mp5416 pmic",
94 .of_match = mp5416_ids,
96 .probe = mp5416_probe,