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39f7611f SG |
1 | /* |
2 | * Copyright (c) 2013 Google, Inc | |
3 | * | |
4 | * (C) Copyright 2012 | |
5 | * Pavel Herrmann <morpheus.ibis@gmail.com> | |
6 | * | |
7 | * SPDX-License-Identifier: GPL-2.0+ | |
8 | */ | |
9 | ||
10 | #include <common.h> | |
11 | #include <dm.h> | |
12 | #include <dm-demo.h> | |
13 | #include <errno.h> | |
14 | #include <fdtdec.h> | |
15 | #include <malloc.h> | |
16 | #include <asm/io.h> | |
17 | #include <linux/list.h> | |
18 | ||
19 | DECLARE_GLOBAL_DATA_PTR; | |
20 | ||
21 | UCLASS_DRIVER(demo) = { | |
74f96dad | 22 | .name = "demo", |
39f7611f SG |
23 | .id = UCLASS_DEMO, |
24 | }; | |
25 | ||
54c5d08a | 26 | int demo_hello(struct udevice *dev, int ch) |
39f7611f SG |
27 | { |
28 | const struct demo_ops *ops = device_get_ops(dev); | |
29 | ||
30 | if (!ops->hello) | |
31 | return -ENOSYS; | |
32 | ||
33 | return ops->hello(dev, ch); | |
34 | } | |
35 | ||
54c5d08a | 36 | int demo_status(struct udevice *dev, int *status) |
39f7611f SG |
37 | { |
38 | const struct demo_ops *ops = device_get_ops(dev); | |
39 | ||
40 | if (!ops->status) | |
41 | return -ENOSYS; | |
42 | ||
43 | return ops->status(dev, status); | |
44 | } | |
45 | ||
a02af4ae SG |
46 | int demo_get_light(struct udevice *dev) |
47 | { | |
48 | const struct demo_ops *ops = device_get_ops(dev); | |
49 | ||
50 | if (!ops->get_light) | |
51 | return -ENOSYS; | |
52 | ||
53 | return ops->get_light(dev); | |
54 | } | |
55 | ||
56 | int demo_set_light(struct udevice *dev, int light) | |
57 | { | |
58 | const struct demo_ops *ops = device_get_ops(dev); | |
59 | ||
60 | if (!ops->set_light) | |
61 | return -ENOSYS; | |
62 | ||
63 | return ops->set_light(dev, light); | |
64 | } | |
65 | ||
54c5d08a | 66 | int demo_parse_dt(struct udevice *dev) |
39f7611f SG |
67 | { |
68 | struct dm_demo_pdata *pdata = dev_get_platdata(dev); | |
e160f7d4 | 69 | int dn = dev_of_offset(dev); |
39f7611f SG |
70 | |
71 | pdata->sides = fdtdec_get_int(gd->fdt_blob, dn, "sides", 0); | |
72 | pdata->colour = fdt_getprop(gd->fdt_blob, dn, "colour", NULL); | |
73 | if (!pdata->sides || !pdata->colour) { | |
74 | debug("%s: Invalid device tree data\n", __func__); | |
75 | return -EINVAL; | |
76 | } | |
77 | ||
78 | return 0; | |
79 | } |