[thirdparty/u-boot.git] / drivers / power / sy8106a.c

// 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
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
0d8382ae JW	2	/*
	3	* (C) Copyright 2016
	4	* Jelle van der Waa <jelle@vdwaa.nl>
0d8382ae	5	*/
d678a59d	6	#include <common.h>
0d8382ae JW	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
ae4e4dde	14	#ifdef CONFIG_SPL_BUILD
0d8382ae JW	15	static 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
	25	int 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	}
ae4e4dde	30	#endif