LXR uboot/drivers/power/sy8106a.c

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