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

 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};