1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
4 * Tero Kristo <t-kristo@ti.com>
10 #include <dm/device_compat.h>
11 #include <power/regulator.h>
13 #define TPS62360_REG_SET0 0
15 #define TPS62360_I2C_CHIP 0x60
17 #define TPS62360_VSEL_STEPSIZE 10000 /* In uV */
19 struct tps62360_regulator_config {
24 struct tps62360_regulator_pdata {
27 struct tps62360_regulator_config *config;
31 * TPS62362/TPS62363 are just re-using these values for now, their preset
32 * voltage values are just different compared to TPS62360/TPS62361.
34 static struct tps62360_regulator_config tps62360_data = {
39 static struct tps62360_regulator_config tps62361_data = {
44 static int tps62360_regulator_set_value(struct udevice *dev, int uV)
46 struct tps62360_regulator_pdata *pdata = dev_get_platdata(dev);
49 if (uV < pdata->config->vmin || uV > pdata->config->vmax)
52 uV -= pdata->config->vmin;
54 uV = DIV_ROUND_UP(uV, TPS62360_VSEL_STEPSIZE);
61 return dm_i2c_write(pdata->i2c, TPS62360_REG_SET0 + pdata->vsel_offset,
65 static int tps62360_regulator_get_value(struct udevice *dev)
69 struct tps62360_regulator_pdata *pdata = dev_get_platdata(dev);
71 ret = dm_i2c_read(pdata->i2c, TPS62360_REG_SET0 + pdata->vsel_offset,
74 dev_err(dev, "i2c read failed: %d\n", ret);
78 return (u32)regval * TPS62360_VSEL_STEPSIZE + pdata->config->vmin;
81 static int tps62360_regulator_probe(struct udevice *dev)
83 struct tps62360_regulator_pdata *pdata = dev_get_platdata(dev);
88 pdata->config = (void *)dev_get_driver_data(dev);
90 vsel0 = dev_read_bool(dev, "ti,vsel0-state-high");
91 vsel1 = dev_read_bool(dev, "ti,vsel1-state-high");
93 pdata->vsel_offset = vsel0 + vsel1 * 2;
95 ret = i2c_get_chip(dev->parent, TPS62360_I2C_CHIP, 1, &pdata->i2c);
97 dev_err(dev, "i2c dev get failed.\n");
104 static const struct dm_regulator_ops tps62360_regulator_ops = {
105 .get_value = tps62360_regulator_get_value,
106 .set_value = tps62360_regulator_set_value,
109 static const struct udevice_id tps62360_regulator_ids[] = {
110 { .compatible = "ti,tps62360", .data = (ulong)&tps62360_data },
111 { .compatible = "ti,tps62361", .data = (ulong)&tps62361_data },
112 { .compatible = "ti,tps62362", .data = (ulong)&tps62360_data },
113 { .compatible = "ti,tps62363", .data = (ulong)&tps62361_data },
117 U_BOOT_DRIVER(tps62360_regulator) = {
118 .name = "tps62360_regulator",
119 .id = UCLASS_REGULATOR,
120 .ops = &tps62360_regulator_ops,
121 .of_match = tps62360_regulator_ids,
122 .platdata_auto = sizeof(struct tps62360_regulator_pdata),
123 .probe = tps62360_regulator_probe,