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 DECLARE_GLOBAL_DATA_PTR;
18 static const struct pmic_child_info pmic_children_info[] = {
19 { .prefix = "LDO", .driver = S5M8767_LDO_DRIVER },
20 { .prefix = "BUCK", .driver = S5M8767_BUCK_DRIVER },
24 static int s5m8767_reg_count(struct udevice *dev)
26 return S5M8767_NUM_OF_REGS;
29 static int s5m8767_write(struct udevice *dev, uint reg, const uint8_t *buff,
32 if (dm_i2c_write(dev, reg, buff, len)) {
33 error("write error to device: %p register: %#x!", dev, reg);
40 static int s5m8767_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
42 if (dm_i2c_read(dev, reg, buff, len)) {
43 error("read error from device: %p register: %#x!", dev, reg);
50 int s5m8767_enable_32khz_cp(struct udevice *dev)
52 return pmic_clrsetbits(dev, S5M8767_EN32KHZ_CP, 0, 1 << 1);
55 static int s5m8767_bind(struct udevice *dev)
58 const void *blob = gd->fdt_blob;
61 node = fdt_subnode_offset(blob, dev->of_offset, "regulators");
63 debug("%s: %s regulators subnode not found!", __func__,
68 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
70 children = pmic_bind_children(dev, node, pmic_children_info);
72 debug("%s: %s - no child found\n", __func__, dev->name);
74 /* Always return success for this device */
78 static struct dm_pmic_ops s5m8767_ops = {
79 .reg_count = s5m8767_reg_count,
81 .write = s5m8767_write,
84 static const struct udevice_id s5m8767_ids[] = {
85 { .compatible = "samsung,s5m8767-pmic" },
89 U_BOOT_DRIVER(pmic_s5m8767) = {
90 .name = "s5m8767_pmic",
92 .of_match = s5m8767_ids,