1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun #include <linux/kernel.h>
3*4882a593Smuzhiyun #include <linux/stat.h>
4*4882a593Smuzhiyun #include <asm/macio.h>
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun static ssize_t
compatible_show(struct device * dev,struct device_attribute * attr,char * buf)7*4882a593Smuzhiyun compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
8*4882a593Smuzhiyun {
9*4882a593Smuzhiyun struct platform_device *of;
10*4882a593Smuzhiyun const char *compat;
11*4882a593Smuzhiyun int cplen;
12*4882a593Smuzhiyun int length = 0;
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun of = &to_macio_device (dev)->ofdev;
15*4882a593Smuzhiyun compat = of_get_property(of->dev.of_node, "compatible", &cplen);
16*4882a593Smuzhiyun if (!compat) {
17*4882a593Smuzhiyun *buf = '\0';
18*4882a593Smuzhiyun return 0;
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun while (cplen > 0) {
21*4882a593Smuzhiyun int l;
22*4882a593Smuzhiyun length += sprintf (buf, "%s\n", compat);
23*4882a593Smuzhiyun buf += length;
24*4882a593Smuzhiyun l = strlen (compat) + 1;
25*4882a593Smuzhiyun compat += l;
26*4882a593Smuzhiyun cplen -= l;
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun return length;
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun static DEVICE_ATTR_RO(compatible);
32*4882a593Smuzhiyun
modalias_show(struct device * dev,struct device_attribute * attr,char * buf)33*4882a593Smuzhiyun static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
34*4882a593Smuzhiyun char *buf)
35*4882a593Smuzhiyun {
36*4882a593Smuzhiyun return of_device_modalias(dev, buf, PAGE_SIZE);
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun
devspec_show(struct device * dev,struct device_attribute * attr,char * buf)39*4882a593Smuzhiyun static ssize_t devspec_show(struct device *dev,
40*4882a593Smuzhiyun struct device_attribute *attr, char *buf)
41*4882a593Smuzhiyun {
42*4882a593Smuzhiyun struct platform_device *ofdev;
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun ofdev = to_platform_device(dev);
45*4882a593Smuzhiyun return sprintf(buf, "%pOF\n", ofdev->dev.of_node);
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun static DEVICE_ATTR_RO(modalias);
48*4882a593Smuzhiyun static DEVICE_ATTR_RO(devspec);
49*4882a593Smuzhiyun
name_show(struct device * dev,struct device_attribute * attr,char * buf)50*4882a593Smuzhiyun static ssize_t name_show(struct device *dev,
51*4882a593Smuzhiyun struct device_attribute *attr, char *buf)
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun return sprintf(buf, "%pOFn\n", dev->of_node);
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun static DEVICE_ATTR_RO(name);
56*4882a593Smuzhiyun
type_show(struct device * dev,struct device_attribute * attr,char * buf)57*4882a593Smuzhiyun static ssize_t type_show(struct device *dev,
58*4882a593Smuzhiyun struct device_attribute *attr, char *buf)
59*4882a593Smuzhiyun {
60*4882a593Smuzhiyun return sprintf(buf, "%s\n", of_node_get_device_type(dev->of_node));
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun static DEVICE_ATTR_RO(type);
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun static struct attribute *macio_dev_attrs[] = {
65*4882a593Smuzhiyun &dev_attr_name.attr,
66*4882a593Smuzhiyun &dev_attr_type.attr,
67*4882a593Smuzhiyun &dev_attr_compatible.attr,
68*4882a593Smuzhiyun &dev_attr_modalias.attr,
69*4882a593Smuzhiyun &dev_attr_devspec.attr,
70*4882a593Smuzhiyun NULL,
71*4882a593Smuzhiyun };
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun static const struct attribute_group macio_dev_group = {
74*4882a593Smuzhiyun .attrs = macio_dev_attrs,
75*4882a593Smuzhiyun };
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun const struct attribute_group *macio_dev_groups[] = {
78*4882a593Smuzhiyun &macio_dev_group,
79*4882a593Smuzhiyun NULL,
80*4882a593Smuzhiyun };
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