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,
35 ret = dm_i2c_write(dev, reg, buff, len);
37 debug("write error to device: %p register: %#x!", dev, reg);
44 static int rk808_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
48 ret = dm_i2c_read(dev, reg, buff, len);
50 debug("read error from device: %p register: %#x!", dev, reg);
57 #if CONFIG_IS_ENABLED(PMIC_CHILDREN)
58 static int rk808_bind(struct udevice *dev)
60 const void *blob = gd->fdt_blob;
64 regulators_node = fdt_subnode_offset(blob, dev->of_offset,
66 if (regulators_node <= 0) {
67 debug("%s: %s regulators subnode not found!", __func__,
72 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
74 children = pmic_bind_children(dev, regulators_node, pmic_children_info);
76 debug("%s: %s - no child found\n", __func__, dev->name);
78 /* Always return success for this device */
83 static struct dm_pmic_ops rk808_ops = {
84 .reg_count = rk808_reg_count,
89 static const struct udevice_id rk808_ids[] = {
90 { .compatible = "rockchip,rk808" },
94 U_BOOT_DRIVER(pmic_rk808) = {
97 .of_match = rk808_ids,
98 #if CONFIG_IS_ENABLED(PMIC_CHILDREN)