2 * Copyright (C) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
13 #include <power/rk808_pmic.h>
14 #include <power/pmic.h>
16 DECLARE_GLOBAL_DATA_PTR;
18 static const struct pmic_child_info pmic_children_info[] = {
19 { .prefix = "DCDC_REG", .driver = "rk808_buck"},
20 { .prefix = "LDO_REG", .driver = "rk808_ldo"},
21 { .prefix = "SWITCH_REG", .driver = "rk808_switch"},
25 static int rk808_reg_count(struct udevice *dev)
27 return RK808_NUM_OF_REGS;
30 static int rk808_write(struct udevice *dev, uint reg, const uint8_t *buff,
33 if (dm_i2c_write(dev, reg, buff, len)) {
34 debug("write error to device: %p register: %#x!", dev, reg);
41 static int rk808_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
43 if (dm_i2c_read(dev, reg, buff, len)) {
44 debug("read error from device: %p register: %#x!", dev, reg);
51 #if CONFIG_IS_ENABLED(PMIC_CHILDREN)
52 static int rk808_bind(struct udevice *dev)
54 const void *blob = gd->fdt_blob;
58 regulators_node = fdt_subnode_offset(blob, dev->of_offset,
60 if (regulators_node <= 0) {
61 debug("%s: %s regulators subnode not found!", __func__,
66 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
68 children = pmic_bind_children(dev, regulators_node, pmic_children_info);
70 debug("%s: %s - no child found\n", __func__, dev->name);
72 /* Always return success for this device */
77 static struct dm_pmic_ops rk808_ops = {
78 .reg_count = rk808_reg_count,
83 static const struct udevice_id rk808_ids[] = {
84 { .compatible = "rockchip,rk808" },
88 U_BOOT_DRIVER(pmic_rk808) = {
91 .of_match = rk808_ids,
92 #if CONFIG_IS_ENABLED(PMIC_CHILDREN)