2 * Copyright (C) 2015 Samsung Electronics
3 * Przemyslaw Marczak <p.marczak@samsung.com>
5 * SPDX-License-Identifier: GPL-2.0+
13 #include <power/pmic.h>
14 #include <power/s2mps11.h>
16 DECLARE_GLOBAL_DATA_PTR;
18 static const struct pmic_child_info pmic_children_info[] = {
19 { .prefix = S2MPS11_OF_LDO_PREFIX, .driver = S2MPS11_LDO_DRIVER },
20 { .prefix = S2MPS11_OF_BUCK_PREFIX, .driver = S2MPS11_BUCK_DRIVER },
24 static int s2mps11_reg_count(struct udevice *dev)
26 return S2MPS11_REG_COUNT;
29 static int s2mps11_write(struct udevice *dev, uint reg, const uint8_t *buff,
34 ret = dm_i2c_write(dev, reg, buff, len);
36 pr_err("write error to device: %p register: %#x!", dev, reg);
41 static int s2mps11_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
45 ret = dm_i2c_read(dev, reg, buff, len);
47 pr_err("read error from device: %p register: %#x!", dev, reg);
52 static int s2mps11_probe(struct udevice *dev)
54 ofnode regulators_node;
57 regulators_node = dev_read_subnode(dev, "voltage-regulators");
58 if (!ofnode_valid(regulators_node)) {
59 debug("%s: %s regulators subnode not found!", __func__,
64 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
66 children = pmic_bind_children(dev, regulators_node, pmic_children_info);
68 debug("%s: %s - no child found\n", __func__, dev->name);
73 static struct dm_pmic_ops s2mps11_ops = {
74 .reg_count = s2mps11_reg_count,
76 .write = s2mps11_write,
79 static const struct udevice_id s2mps11_ids[] = {
80 { .compatible = "samsung,s2mps11-pmic" },
84 U_BOOT_DRIVER(pmic_s2mps11) = {
85 .name = "s2mps11_pmic",
87 .of_match = s2mps11_ids,
89 .probe = s2mps11_probe,