1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2016 Toradex AG
4 * Stefan Agner <stefan.agner@toradex.com>
5 */
6
7 #include <common.h>
8 #include <dm.h>
9 #include <errno.h>
10 #include <fdtdec.h>
11 #include <log.h>
12 #include <linux/libfdt.h>
13 #include <power/rn5t567_pmic.h>
14 #include <power/pmic.h>
15
rn5t567_reg_count(struct udevice * dev)16 static int rn5t567_reg_count(struct udevice *dev)
17 {
18 return RN5T567_NUM_OF_REGS;
19 }
20
rn5t567_write(struct udevice * dev,uint reg,const uint8_t * buff,int len)21 static int rn5t567_write(struct udevice *dev, uint reg, const uint8_t *buff,
22 int len)
23 {
24 int ret;
25
26 ret = dm_i2c_write(dev, reg, buff, len);
27 if (ret) {
28 debug("write error to device: %p register: %#x!\n", dev, reg);
29 return ret;
30 }
31
32 return 0;
33 }
34
rn5t567_read(struct udevice * dev,uint reg,uint8_t * buff,int len)35 static int rn5t567_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
36 {
37 int ret;
38
39 ret = dm_i2c_read(dev, reg, buff, len);
40 if (ret) {
41 debug("read error from device: %p register: %#x!\n", dev, reg);
42 return ret;
43 }
44
45 return 0;
46 }
47
48 static struct dm_pmic_ops rn5t567_ops = {
49 .reg_count = rn5t567_reg_count,
50 .read = rn5t567_read,
51 .write = rn5t567_write,
52 };
53
54 static const struct udevice_id rn5t567_ids[] = {
55 { .compatible = "ricoh,rn5t567" },
56 { }
57 };
58
59 U_BOOT_DRIVER(pmic_rn5t567) = {
60 .name = "rn5t567 pmic",
61 .id = UCLASS_PMIC,
62 .of_match = rn5t567_ids,
63 .ops = &rn5t567_ops,
64 };
65