1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2015 Samsung Electronics
4 * Przemyslaw Marczak <p.marczak@samsung.com>
12 #include <power/pmic.h>
13 #include <power/s2mps11.h>
15 static const struct pmic_child_info pmic_children_info[] = {
16 { .prefix = S2MPS11_OF_LDO_PREFIX, .driver = S2MPS11_LDO_DRIVER },
17 { .prefix = S2MPS11_OF_BUCK_PREFIX, .driver = S2MPS11_BUCK_DRIVER },
21 static int s2mps11_reg_count(struct udevice *dev)
23 return S2MPS11_REG_COUNT;
26 static int s2mps11_write(struct udevice *dev, uint reg, const uint8_t *buff,
31 ret = dm_i2c_write(dev, reg, buff, len);
33 pr_err("write error to device: %p register: %#x!", dev, reg);
38 static int s2mps11_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
42 ret = dm_i2c_read(dev, reg, buff, len);
44 pr_err("read error from device: %p register: %#x!", dev, reg);
49 static int s2mps11_probe(struct udevice *dev)
51 ofnode regulators_node;
54 regulators_node = dev_read_subnode(dev, "voltage-regulators");
55 if (!ofnode_valid(regulators_node)) {
56 debug("%s: %s regulators subnode not found!", __func__,
61 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
63 children = pmic_bind_children(dev, regulators_node, pmic_children_info);
65 debug("%s: %s - no child found\n", __func__, dev->name);
70 static struct dm_pmic_ops s2mps11_ops = {
71 .reg_count = s2mps11_reg_count,
73 .write = s2mps11_write,
76 static const struct udevice_id s2mps11_ids[] = {
77 { .compatible = "samsung,s2mps11-pmic" },
81 U_BOOT_DRIVER(pmic_s2mps11) = {
82 .name = "s2mps11_pmic",
84 .of_match = s2mps11_ids,
86 .probe = s2mps11_probe,