1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack@eets.ch>
10 #include <power/pmic.h>
11 #include <power/regulator.h>
12 #include <power/tps65910_pmic.h>
14 static const struct pmic_child_info pmic_children_info[] = {
15 { .prefix = "ldo_", .driver = TPS65910_LDO_DRIVER },
16 { .prefix = "buck_", .driver = TPS65910_BUCK_DRIVER },
17 { .prefix = "boost_", .driver = TPS65910_BOOST_DRIVER },
21 static int pmic_tps65910_reg_count(struct udevice *dev)
23 return TPS65910_NUM_REGS;
26 static int pmic_tps65910_write(struct udevice *dev, uint reg, const u8 *buffer,
31 ret = dm_i2c_write(dev, reg, buffer, len);
33 pr_err("%s write error on register %02x\n", dev->name, reg);
38 static int pmic_tps65910_read(struct udevice *dev, uint reg, u8 *buffer,
43 ret = dm_i2c_read(dev, reg, buffer, len);
45 pr_err("%s read error on register %02x\n", dev->name, reg);
50 static int pmic_tps65910_bind(struct udevice *dev)
52 ofnode regulators_node;
55 regulators_node = dev_read_subnode(dev, "regulators");
56 if (!ofnode_valid(regulators_node)) {
57 debug("%s regulators subnode not found\n", dev->name);
61 children = pmic_bind_children(dev, regulators_node, pmic_children_info);
63 debug("%s has no children (regulators)\n", dev->name);
68 static int pmic_tps65910_probe(struct udevice *dev)
70 /* use I2C control interface instead of I2C smartreflex interface to
71 * access smartrefelex registers VDD1_OP_REG, VDD1_SR_REG, VDD2_OP_REG
74 return pmic_clrsetbits(dev, TPS65910_REG_DEVICE_CTRL, 0,
75 TPS65910_I2C_SEL_MASK);
78 static struct dm_pmic_ops pmic_tps65910_ops = {
79 .reg_count = pmic_tps65910_reg_count,
80 .read = pmic_tps65910_read,
81 .write = pmic_tps65910_write,
84 static const struct udevice_id pmic_tps65910_match[] = {
85 { .compatible = "ti,tps65910" },
89 U_BOOT_DRIVER(pmic_tps65910) = {
90 .name = "pmic_tps65910",
92 .of_match = pmic_tps65910_match,
93 .bind = pmic_tps65910_bind,
94 .probe = pmic_tps65910_probe,
95 .ops = &pmic_tps65910_ops,