1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2015 Freescale Semiconductor, Inc
4 * Peng Fan <Peng.Fan@freescale.com>
12 #include <power/pmic.h>
13 #include <power/regulator.h>
14 #include <power/pfuze100_pmic.h>
15 #include <power/pfuze3000_pmic.h>
17 static const struct pmic_child_info pmic_children_info[] = {
19 { .prefix = "s", .driver = PFUZE100_REGULATOR_DRIVER },
20 /* vgen[x], vsnvs, vcc, v33, vcc_sd */
21 { .prefix = "v", .driver = PFUZE100_REGULATOR_DRIVER },
25 static int pfuze100_reg_count(struct udevice *dev)
27 return dev->driver_data == PFUZE3000 ? PFUZE3000_NUM_OF_REGS : PFUZE100_NUM_OF_REGS;
30 static int pfuze100_write(struct udevice *dev, uint reg, const uint8_t *buff,
33 if (dm_i2c_write(dev, reg, buff, len)) {
34 pr_err("write error to device: %p register: %#x!", dev, reg);
41 static int pfuze100_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
43 if (dm_i2c_read(dev, reg, buff, len)) {
44 pr_err("read error from device: %p register: %#x!", dev, reg);
51 static int pfuze100_bind(struct udevice *dev)
53 ofnode regulators_node;
56 regulators_node = dev_read_subnode(dev, "regulators");
57 if (!ofnode_valid(regulators_node)) {
58 debug("%s: %s regulators subnode not found!", __func__,
63 debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
65 children = pmic_bind_children(dev, regulators_node, pmic_children_info);
67 debug("%s: %s - no child found\n", __func__, dev->name);
69 /* Always return success for this device */
73 static struct dm_pmic_ops pfuze100_ops = {
74 .reg_count = pfuze100_reg_count,
75 .read = pfuze100_read,
76 .write = pfuze100_write,
79 static const struct udevice_id pfuze100_ids[] = {
80 { .compatible = "fsl,pfuze100", .data = PFUZE100, },
81 { .compatible = "fsl,pfuze200", .data = PFUZE200, },
82 { .compatible = "fsl,pfuze3000", .data = PFUZE3000, },
86 U_BOOT_DRIVER(pmic_pfuze100) = {
87 .name = "pfuze100 pmic",
89 .of_match = pfuze100_ids,
90 .bind = pfuze100_bind,