1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2016 Samsung Electronics
4 * Jaehoon Chung <jh80.chung@samsung.com>
5 */
6
7 #include <common.h>
8 #include <dm.h>
9 #include <errno.h>
10 #include <i2c.h>
11 #include <power/pmic.h>
12 #include <power/max8998_pmic.h>
13
max8998_reg_count(struct udevice * dev)14 static int max8998_reg_count(struct udevice *dev)
15 {
16 return PMIC_NUM_OF_REGS;
17 }
18
max8998_write(struct udevice * dev,uint reg,const uint8_t * buff,int len)19 static int max8998_write(struct udevice *dev, uint reg, const uint8_t *buff,
20 int len)
21 {
22 int ret;
23
24 ret = dm_i2c_write(dev, reg, buff, len);
25 if (ret)
26 pr_err("write error to device: %p register: %#x!\n", dev, reg);
27
28 return ret;
29 }
30
max8998_read(struct udevice * dev,uint reg,uint8_t * buff,int len)31 static int max8998_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
32 {
33 int ret;
34
35 ret = dm_i2c_read(dev, reg, buff, len);
36 if (ret)
37 pr_err("read error from device: %p register: %#x!\n", dev, reg);
38
39 return ret;
40 }
41
42 static struct dm_pmic_ops max8998_ops = {
43 .reg_count = max8998_reg_count,
44 .read = max8998_read,
45 .write = max8998_write,
46 };
47
48 static const struct udevice_id max8998_ids[] = {
49 { .compatible = "maxim,max8998" },
50 { }
51 };
52
53 U_BOOT_DRIVER(pmic_max8998) = {
54 .name = "max8998_pmic",
55 .id = UCLASS_PMIC,
56 .of_match = max8998_ids,
57 .ops = &max8998_ops,
58 };
59