1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2014 Texas Instruments Incorporated - http://www.ti.com 4 * Author: Felipe Balbi <balbi (at) 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
