1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2016
3*4882a593Smuzhiyun * Jelle van der Waa <jelle@vdwaa.nl>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <i2c.h>
9*4882a593Smuzhiyun #include <sy8106a.h>
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #define SY8106A_I2C_ADDR 0x65
12*4882a593Smuzhiyun #define SY8106A_VOUT1_SEL 1
13*4882a593Smuzhiyun #define SY8106A_VOUT1_SEL_ENABLE (1 << 7)
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #ifdef CONFIG_SPL_BUILD
sy8106a_mvolt_to_cfg(int mvolt,int min,int max,int div)16*4882a593Smuzhiyun static u8 sy8106a_mvolt_to_cfg(int mvolt, int min, int max, int div)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun if (mvolt < min)
19*4882a593Smuzhiyun mvolt = min;
20*4882a593Smuzhiyun else if (mvolt > max)
21*4882a593Smuzhiyun mvolt = max;
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun return (mvolt - min) / div;
24*4882a593Smuzhiyun }
25*4882a593Smuzhiyun
sy8106a_set_vout1(unsigned int mvolt)26*4882a593Smuzhiyun int sy8106a_set_vout1(unsigned int mvolt)
27*4882a593Smuzhiyun {
28*4882a593Smuzhiyun u8 data = sy8106a_mvolt_to_cfg(mvolt, 680, 1950, 10) | SY8106A_VOUT1_SEL_ENABLE;
29*4882a593Smuzhiyun return i2c_write(SY8106A_I2C_ADDR, SY8106A_VOUT1_SEL, 1, &data, 1);
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun #endif
32