1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (C) 2016 Samsung Electronics
3*4882a593Smuzhiyun * Jaehoon Chung <jh80.chung@samsung.com>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <common.h>
9*4882a593Smuzhiyun #include <dm.h>
10*4882a593Smuzhiyun #include <errno.h>
11*4882a593Smuzhiyun #include <i2c.h>
12*4882a593Smuzhiyun #include <power/pmic.h>
13*4882a593Smuzhiyun #include <power/max8998_pmic.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
16*4882a593Smuzhiyun
max8998_reg_count(struct udevice * dev)17*4882a593Smuzhiyun static int max8998_reg_count(struct udevice *dev)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun return PMIC_NUM_OF_REGS;
20*4882a593Smuzhiyun }
21*4882a593Smuzhiyun
max8998_write(struct udevice * dev,uint reg,const uint8_t * buff,int len)22*4882a593Smuzhiyun static int max8998_write(struct udevice *dev, uint reg, const uint8_t *buff,
23*4882a593Smuzhiyun int len)
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun int ret;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun ret = dm_i2c_write(dev, reg, buff, len);
28*4882a593Smuzhiyun if (ret)
29*4882a593Smuzhiyun pr_err("write error to device: %p register: %#x!", dev, reg);
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun return ret;
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun
max8998_read(struct udevice * dev,uint reg,uint8_t * buff,int len)34*4882a593Smuzhiyun static int max8998_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
35*4882a593Smuzhiyun {
36*4882a593Smuzhiyun int ret;
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun ret = dm_i2c_read(dev, reg, buff, len);
39*4882a593Smuzhiyun if (ret)
40*4882a593Smuzhiyun pr_err("read error from device: %p register: %#x!", dev, reg);
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun return ret;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun static struct dm_pmic_ops max8998_ops = {
46*4882a593Smuzhiyun .reg_count = max8998_reg_count,
47*4882a593Smuzhiyun .read = max8998_read,
48*4882a593Smuzhiyun .write = max8998_write,
49*4882a593Smuzhiyun };
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun static const struct udevice_id max8998_ids[] = {
52*4882a593Smuzhiyun { .compatible = "maxim,max8998" },
53*4882a593Smuzhiyun { }
54*4882a593Smuzhiyun };
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun U_BOOT_DRIVER(pmic_max8998) = {
57*4882a593Smuzhiyun .name = "max8998_pmic",
58*4882a593Smuzhiyun .id = UCLASS_PMIC,
59*4882a593Smuzhiyun .of_match = max8998_ids,
60*4882a593Smuzhiyun .ops = &max8998_ops,
61*4882a593Smuzhiyun };
62