1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/kernel.h>
 3#include <linux/of.h>
 4#include <linux/of_device.h>
 5#include <linux/stat.h>
 6#include <asm/macio.h>
 7
 
 
 
 
 
 
 
 
 
 
 
 8static ssize_t
 9compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
10{
11	struct platform_device *of;
12	const char *compat;
13	int cplen;
14	int length = 0;
15
16	of = &to_macio_device (dev)->ofdev;
17	compat = of_get_property(of->dev.of_node, "compatible", &cplen);
18	if (!compat) {
19		*buf = '\0';
20		return 0;
21	}
22	while (cplen > 0) {
23		int l;
24		length += sprintf (buf, "%s\n", compat);
25		buf += length;
26		l = strlen (compat) + 1;
27		compat += l;
28		cplen -= l;
29	}
30
31	return length;
32}
33static DEVICE_ATTR_RO(compatible);
34
35static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
36			      char *buf)
37{
38	return of_device_modalias(dev, buf, PAGE_SIZE);
39}
40
41static ssize_t devspec_show(struct device *dev,
42				struct device_attribute *attr, char *buf)
43{
44	struct platform_device *ofdev;
45
46	ofdev = to_platform_device(dev);
47	return sprintf(buf, "%pOF\n", ofdev->dev.of_node);
48}
49static DEVICE_ATTR_RO(modalias);
50static DEVICE_ATTR_RO(devspec);
51
52static ssize_t name_show(struct device *dev,
53			 struct device_attribute *attr, char *buf)
54{
55	return sprintf(buf, "%pOFn\n", dev->of_node);
56}
57static DEVICE_ATTR_RO(name);
58
59static ssize_t type_show(struct device *dev,
60			 struct device_attribute *attr, char *buf)
61{
62	return sprintf(buf, "%s\n", of_node_get_device_type(dev->of_node));
63}
64static DEVICE_ATTR_RO(type);
65
66static struct attribute *macio_dev_attrs[] = {
67	&dev_attr_name.attr,
68	&dev_attr_type.attr,
69	&dev_attr_compatible.attr,
70	&dev_attr_modalias.attr,
71	&dev_attr_devspec.attr,
72	NULL,
73};
74
75static const struct attribute_group macio_dev_group = {
76	.attrs = macio_dev_attrs,
77};
78
79const struct attribute_group *macio_dev_groups[] = {
80	&macio_dev_group,
81	NULL,
82};

 1// SPDX-License-Identifier: GPL-2.0
 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)			\
 8static ssize_t								\
 9field##_show (struct device *dev, struct device_attribute *attr,	\
10              char *buf)						\
11{									\
12	struct macio_dev *mdev = to_macio_device (dev);			\
13	return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
14}									\
15static DEVICE_ATTR_RO(field);
16
17static ssize_t
18compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
19{
20	struct platform_device *of;
21	const char *compat;
22	int cplen;
23	int length = 0;
24
25	of = &to_macio_device (dev)->ofdev;
26	compat = of_get_property(of->dev.of_node, "compatible", &cplen);
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}
42static DEVICE_ATTR_RO(compatible);
43
44static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
45			      char *buf)
46{
47	return of_device_modalias(dev, buf, PAGE_SIZE);
48}
49
50static ssize_t devspec_show(struct device *dev,
51				struct device_attribute *attr, char *buf)
52{
53	struct platform_device *ofdev;
54
55	ofdev = to_platform_device(dev);
56	return sprintf(buf, "%pOF\n", ofdev->dev.of_node);
57}
58static DEVICE_ATTR_RO(modalias);
59static DEVICE_ATTR_RO(devspec);
60
61macio_config_of_attr (name, "%s\n");
62macio_config_of_attr (type, "%s\n");
 
 
 
 
 
 
 
 
 
 
 
63
64static 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
73static const struct attribute_group macio_dev_group = {
74	.attrs = macio_dev_attrs,
75};
76
77const struct attribute_group *macio_dev_groups[] = {
78	&macio_dev_group,
79	NULL,
80};