2 * Copyright (C) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
13 #include <power/act8846_pmic.h>
14 #include <power/pmic.h>
16 DECLARE_GLOBAL_DATA_PTR;
18 static const struct pmic_child_info pmic_children_info[] = {
19 { .prefix = "REG", .driver = "act8846_reg"},
23 static int act8846_reg_count(struct udevice *dev)
25 return ACT8846_NUM_OF_REGS;
28 static int act8846_write(struct udevice *dev, uint reg, const uint8_t *buff,
31 if (dm_i2c_write(dev, reg, buff, len)) {
32 debug("write error to device: %p register: %#x!", dev, reg);
39 static int act8846_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
41 if (dm_i2c_read(dev, reg, buff, len)) {
42 debug("read error from device: %p register: %#x!", dev, reg);
49 static int act8846_bind(struct udevice *dev)
51 const void *blob = gd->fdt_blob;
55 regulators_node = fdt_subnode_offset(blob, dev->of_offset,
57 if (regulators_node <= 0) {
58 debug("%s: %s regulators subnode not found!", __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 struct dm_pmic_ops act8846_ops = {
74 .reg_count = act8846_reg_count,
76 .write = act8846_write,
79 static const struct udevice_id act8846_ids[] = {
80 { .compatible = "active-semi,act8846" },
84 U_BOOT_DRIVER(pmic_act8846) = {
85 .name = "act8846 pmic",
87 .of_match = act8846_ids,