blob: 2123685a6a8b69c540d7fe6bab5e5585c767f18b [file] [log] [blame]
Felipe Balbi78fb6e32015-01-06 09:14:36 -06001/*
2 * (C) Copyright 2014 Texas Instruments Incorporated - http://www.ti.com
3 * Author: Felipe Balbi <balbi@ti.com>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8#include <common.h>
9#include <i2c.h>
10#include <asm/errno.h>
11#include <power/pmic.h>
12#include <power/tps62362.h>
13
14/**
15 * tps62362_voltage_update() - Function to change a voltage level, as this
16 * is a multi-step process.
17 * @reg: Register address to write to
18 * @volt_sel: Voltage register value to write
19 * @return: 0 on success, 1 on failure
20 */
21int tps62362_voltage_update(unsigned char reg, unsigned char volt_sel)
22{
23 if (reg > TPS62362_NUM_REGS)
24 return 1;
25
26 return i2c_write(TPS62362_I2C_ADDR, reg, 1, &volt_sel, 1);
27}
28
29int power_tps62362_init(unsigned char bus)
30{
31 static const char name[] = "TPS62362";
32 struct pmic *p = pmic_alloc();
33
34 if (!p) {
35 printf("%s: POWER allocation error!\n", __func__);
36 return -ENOMEM;
37 }
38
39 p->name = name;
40 p->interface = PMIC_I2C;
41 p->number_of_regs = TPS62362_NUM_REGS;
42 p->hw.i2c.addr = TPS62362_I2C_ADDR;
43 p->hw.i2c.tx_num = 1;
44 p->bus = bus;
45
46 return 0;
47}