| 1234567891011121314151617181920212223242526272829 |
- /*
- * (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);
- }
|
