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 <linux/libfdt.h>
12 #include <power/rn5t567_pmic.h>
13 #include <power/pmic.h>
14
rn5t567_reg_count(struct udevice * dev)15 static int rn5t567_reg_count(struct udevice *dev)
16 {
17 return RN5T567_NUM_OF_REGS;
18 }
19
rn5t567_write(struct udevice * dev,uint reg,const uint8_t * buff,int len)20 static int rn5t567_write(struct udevice *dev, uint reg, const uint8_t *buff,
21 int len)
22 {
23 int ret;
24
25 ret = dm_i2c_write(dev, reg, buff, len);
26 if (ret) {
27 debug("write error to device: %p register: %#x!\n", dev, reg);
28 return ret;
29 }
30
31 return 0;
32 }
33
rn5t567_read(struct udevice * dev,uint reg,uint8_t * buff,int len)34 static int rn5t567_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
35 {
36 int ret;
37
38 ret = dm_i2c_read(dev, reg, buff, len);
39 if (ret) {
40 debug("read error from device: %p register: %#x!\n", dev, reg);
41 return ret;
42 }
43
44 return 0;
45 }
46
47 static struct dm_pmic_ops rn5t567_ops = {
48 .reg_count = rn5t567_reg_count,
49 .read = rn5t567_read,
50 .write = rn5t567_write,
51 };
52
53 static const struct udevice_id rn5t567_ids[] = {
54 { .compatible = "ricoh,rn5t567" },
55 { }
56 };
57
58 U_BOOT_DRIVER(pmic_rn5t567) = {
59 .name = "rn5t567 pmic",
60 .id = UCLASS_PMIC,
61 .of_match = rn5t567_ids,
62 .ops = &rn5t567_ops,
63 };
64