| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * (C) Copyright 2016 |
| * Jelle van der Waa <jelle@vdwaa.nl> |
| */ |
| #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) |
| |
| #ifdef CONFIG_SPL_BUILD |
| 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); |
| } |
| #endif |
