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