1#include <linux/kernel.h>
 2#include <linux/stat.h>
 3#include <asm/macio.h>
 4
 5
 6#define macio_config_of_attr(field, format_string)			\
 7static ssize_t								\
 8field##_show (struct device *dev, struct device_attribute *attr,	\
 9              char *buf)						\
10{									\
11	struct macio_dev *mdev = to_macio_device (dev);			\
12	return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
13}
 
14
15static ssize_t
16compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
17{
18	struct platform_device *of;
19	const char *compat;
20	int cplen;
21	int length = 0;
22
23	of = &to_macio_device (dev)->ofdev;
24	compat = of_get_property(of->dev.of_node, "compatible", &cplen);
25	if (!compat) {
26		*buf = '\0';
27		return 0;
28	}
29	while (cplen > 0) {
30		int l;
31		length += sprintf (buf, "%s\n", compat);
32		buf += length;
33		l = strlen (compat) + 1;
34		compat += l;
35		cplen -= l;
36	}
37
38	return length;
39}
 
40
41static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
42			      char *buf)
43{
44	int len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
45
46	buf[len] = '\n';
47	buf[len+1] = 0;
48
49	return len+1;
50}
51
52static ssize_t devspec_show(struct device *dev,
53				struct device_attribute *attr, char *buf)
54{
55	struct platform_device *ofdev;
56
57	ofdev = to_platform_device(dev);
58	return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
59}
 
 
60
61macio_config_of_attr (name, "%s\n");
62macio_config_of_attr (type, "%s\n");
63
64struct device_attribute macio_dev_attrs[] = {
65	__ATTR_RO(name),
66	__ATTR_RO(type),
67	__ATTR_RO(compatible),
68	__ATTR_RO(modalias),
69	__ATTR_RO(devspec),
70	__ATTR_NULL
 
 
 
 
 
 
 
 
 
71};

 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};