1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
// 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,
};
|
