59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Samsung Electronics
|
|
* Jaehoon Chung <jh80.chung@samsung.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <i2c.h>
|
|
#include <power/pmic.h>
|
|
#include <power/max8997_pmic.h>
|
|
#include <errno.h>
|
|
|
|
static int max8997_reg_count(struct udevice *dev)
|
|
{
|
|
return PMIC_NUM_OF_REGS;
|
|
}
|
|
|
|
static int max8997_write(struct udevice *dev, uint reg, const uint8_t *buff,
|
|
int len)
|
|
{
|
|
int ret;
|
|
|
|
ret = dm_i2c_write(dev, reg, buff, len);
|
|
if (ret)
|
|
pr_err("write error to device: %p register: %#x!\n", dev, reg);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int max8997_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
|
|
{
|
|
int ret;
|
|
|
|
ret = dm_i2c_read(dev, reg, buff, len);
|
|
if (ret)
|
|
pr_err("read error from device: %p register: %#x!\n", dev, reg);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct dm_pmic_ops max8997_ops = {
|
|
.reg_count = max8997_reg_count,
|
|
.read = max8997_read,
|
|
.write = max8997_write,
|
|
};
|
|
|
|
static const struct udevice_id max8997_ids[] = {
|
|
{ .compatible = "maxim,max8997" },
|
|
{ },
|
|
};
|
|
|
|
U_BOOT_DRIVER(pmic_max8997) = {
|
|
.name = "max8997_pmic",
|
|
.id = UCLASS_PMIC,
|
|
.of_match = max8997_ids,
|
|
.ops = &max8997_ops,
|
|
};
|