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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
b5bf5b67 JM |
2 | #include <linux/kernel.h> |
3 | #include <linux/stat.h> | |
4 | #include <asm/macio.h> | |
5 | ||
6 | ||
7 | #define macio_config_of_attr(field, format_string) \ | |
8 | static ssize_t \ | |
9 | field##_show (struct device *dev, struct device_attribute *attr, \ | |
10 | char *buf) \ | |
11 | { \ | |
12 | struct macio_dev *mdev = to_macio_device (dev); \ | |
61c7a080 | 13 | return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \ |
60bb70aa GKH |
14 | } \ |
15 | static DEVICE_ATTR_RO(field); | |
b5bf5b67 JM |
16 | |
17 | static ssize_t | |
18 | compatible_show (struct device *dev, struct device_attribute *attr, char *buf) | |
19 | { | |
2dc11581 | 20 | struct platform_device *of; |
018a3d1d | 21 | const char *compat; |
b5bf5b67 JM |
22 | int cplen; |
23 | int length = 0; | |
24 | ||
25 | of = &to_macio_device (dev)->ofdev; | |
61c7a080 | 26 | compat = of_get_property(of->dev.of_node, "compatible", &cplen); |
b5bf5b67 JM |
27 | if (!compat) { |
28 | *buf = '\0'; | |
29 | return 0; | |
30 | } | |
31 | while (cplen > 0) { | |
32 | int l; | |
33 | length += sprintf (buf, "%s\n", compat); | |
34 | buf += length; | |
35 | l = strlen (compat) + 1; | |
36 | compat += l; | |
37 | cplen -= l; | |
38 | } | |
39 | ||
40 | return length; | |
41 | } | |
60bb70aa | 42 | static DEVICE_ATTR_RO(compatible); |
b5bf5b67 | 43 | |
dcb34abb | 44 | static ssize_t modalias_show (struct device *dev, struct device_attribute *attr, |
45 | char *buf) | |
46 | { | |
0634c295 | 47 | return of_device_modalias(dev, buf, PAGE_SIZE); |
dcb34abb | 48 | } |
49 | ||
140b932f OH |
50 | static ssize_t devspec_show(struct device *dev, |
51 | struct device_attribute *attr, char *buf) | |
52 | { | |
2dc11581 | 53 | struct platform_device *ofdev; |
140b932f | 54 | |
2dc11581 | 55 | ofdev = to_platform_device(dev); |
b6a945ae | 56 | return sprintf(buf, "%pOF\n", ofdev->dev.of_node); |
140b932f | 57 | } |
60bb70aa GKH |
58 | static DEVICE_ATTR_RO(modalias); |
59 | static DEVICE_ATTR_RO(devspec); | |
140b932f | 60 | |
b5bf5b67 JM |
61 | macio_config_of_attr (name, "%s\n"); |
62 | macio_config_of_attr (type, "%s\n"); | |
63 | ||
60bb70aa GKH |
64 | static struct attribute *macio_dev_attrs[] = { |
65 | &dev_attr_name.attr, | |
66 | &dev_attr_type.attr, | |
67 | &dev_attr_compatible.attr, | |
68 | &dev_attr_modalias.attr, | |
69 | &dev_attr_devspec.attr, | |
70 | NULL, | |
71 | }; | |
72 | ||
73 | static const struct attribute_group macio_dev_group = { | |
74 | .attrs = macio_dev_attrs, | |
75 | }; | |
76 | ||
77 | const struct attribute_group *macio_dev_groups[] = { | |
78 | &macio_dev_group, | |
79 | NULL, | |
b5bf5b67 | 80 | }; |