2 * Copyright (C) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
12 #include <linux/libfdt.h>
13 #include <power/act8846_pmic.h>
14 #include <power/pmic.h>
16 static const struct pmic_child_info pmic_children_info[] = {
17 { .prefix = "REG", .driver = "act8846_reg"},
21 static int act8846_reg_count(struct udevice *dev)
23 return ACT8846_NUM_OF_REGS;
26 static int act8846_write(struct udevice *dev, uint reg, const uint8_t *buff,
29 if (dm_i2c_write(dev, reg, buff, len)) {
30 debug("write error to device: %p register: %#x!\n", dev, reg);
37 static int act8846_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
39 if (dm_i2c_read(dev, reg, buff, len)) {
40 debug("read error from device: %p register: %#x!\n", dev, reg);
47 static int act8846_bind(struct udevice *dev)
49 ofnode regulators_node;
52 regulators_node = dev_read_subnode(dev, "regulators");
53 if (!ofnode_valid(regulators_node)) {
54 debug("%s: %s regulators subnode not found!", __func__,
59 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
61 children = pmic_bind_children(dev, regulators_node, pmic_children_info);
63 debug("%s: %s - no child found\n", __func__, dev->name);
65 /* Always return success for this device */
69 static struct dm_pmic_ops act8846_ops = {
70 .reg_count = act8846_reg_count,
72 .write = act8846_write,
75 static const struct udevice_id act8846_ids[] = {
76 { .compatible = "active-semi,act8846" },
80 U_BOOT_DRIVER(pmic_act8846) = {
81 .name = "act8846 pmic",
83 .of_match = act8846_ids,