/* | |
* (C) Copyright 2016 | |
* Jelle van der Waa <jelle@vdwaa.nl> | |
* | |
* SPDX-License-Identifier: GPL-2.0+ | |
*/ | |
#include <common.h> | |
#include <i2c.h> | |
#include <sy8106a.h> | |
#define SY8106A_I2C_ADDR 0x65 | |
#define SY8106A_VOUT1_SEL 1 | |
#define SY8106A_VOUT1_SEL_ENABLE (1 << 7) | |
static u8 sy8106a_mvolt_to_cfg(int mvolt, int min, int max, int div) | |
{ | |
if (mvolt < min) | |
mvolt = min; | |
else if (mvolt > max) | |
mvolt = max; | |
return (mvolt - min) / div; | |
} | |
int sy8106a_set_vout1(unsigned int mvolt) | |
{ | |
u8 data = sy8106a_mvolt_to_cfg(mvolt, 680, 1950, 10) | SY8106A_VOUT1_SEL_ENABLE; | |
return i2c_write(SY8106A_I2C_ADDR, SY8106A_VOUT1_SEL, 1, &data, 1); | |
} |