2 * Copyright (C) 2015 Google, Inc
4 * SPDX-License-Identifier: GPL-2.0+
12 #include <power/pmic.h>
13 #include <power/regulator.h>
14 #include <power/s5m8767.h>
16 static const struct pmic_child_info pmic_children_info[] = {
17 { .prefix = "LDO", .driver = S5M8767_LDO_DRIVER },
18 { .prefix = "BUCK", .driver = S5M8767_BUCK_DRIVER },
22 static int s5m8767_reg_count(struct udevice *dev)
24 return S5M8767_NUM_OF_REGS;
27 static int s5m8767_write(struct udevice *dev, uint reg, const uint8_t *buff,
30 if (dm_i2c_write(dev, reg, buff, len)) {
31 pr_err("write error to device: %p register: %#x!", dev, reg);
38 static int s5m8767_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
40 if (dm_i2c_read(dev, reg, buff, len)) {
41 pr_err("read error from device: %p register: %#x!", dev, reg);
48 int s5m8767_enable_32khz_cp(struct udevice *dev)
50 return pmic_clrsetbits(dev, S5M8767_EN32KHZ_CP, 0, 1 << 1);
53 static int s5m8767_bind(struct udevice *dev)
58 node = dev_read_subnode(dev, "regulators");
59 if (!ofnode_valid(node)) {
60 debug("%s: %s regulators subnode not found!", __func__,
65 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
67 children = pmic_bind_children(dev, node, pmic_children_info);
69 debug("%s: %s - no child found\n", __func__, dev->name);
71 /* Always return success for this device */
75 static struct dm_pmic_ops s5m8767_ops = {
76 .reg_count = s5m8767_reg_count,
78 .write = s5m8767_write,
81 static const struct udevice_id s5m8767_ids[] = {
82 { .compatible = "samsung,s5m8767-pmic" },
86 U_BOOT_DRIVER(pmic_s5m8767) = {
87 .name = "s5m8767_pmic",
89 .of_match = s5m8767_ids,