linux-stable/drivers/macintosh/macio_sysfs.c
Christophe Leroy a486e512d1 macintosh: Prepare cleanup of powerpc's asm/prom.h
powerpc's asm/prom.h brings some headers that it doesn't
need itself.

In order to clean it up, first add missing headers in
users of asm/prom.h

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/04961364547fe4556e30cb302b0e20a939b83426.1648833027.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:39 +10:00

82 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/stat.h>
#include <asm/macio.h>
static ssize_t
compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
{
struct platform_device *of;
const char *compat;
int cplen;
int length = 0;
of = &to_macio_device (dev)->ofdev;
compat = of_get_property(of->dev.of_node, "compatible", &cplen);
if (!compat) {
*buf = '\0';
return 0;
}
while (cplen > 0) {
int l;
length += sprintf (buf, "%s\n", compat);
buf += length;
l = strlen (compat) + 1;
compat += l;
cplen -= l;
}
return length;
}
static DEVICE_ATTR_RO(compatible);
static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
char *buf)
{
return of_device_modalias(dev, buf, PAGE_SIZE);
}
static ssize_t devspec_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct platform_device *ofdev;
ofdev = to_platform_device(dev);
return sprintf(buf, "%pOF\n", ofdev->dev.of_node);
}
static DEVICE_ATTR_RO(modalias);
static DEVICE_ATTR_RO(devspec);
static ssize_t name_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%pOFn\n", dev->of_node);
}
static DEVICE_ATTR_RO(name);
static ssize_t type_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", of_node_get_device_type(dev->of_node));
}
static DEVICE_ATTR_RO(type);
static struct attribute *macio_dev_attrs[] = {
&dev_attr_name.attr,
&dev_attr_type.attr,
&dev_attr_compatible.attr,
&dev_attr_modalias.attr,
&dev_attr_devspec.attr,
NULL,
};
static const struct attribute_group macio_dev_group = {
.attrs = macio_dev_attrs,
};
const struct attribute_group *macio_dev_groups[] = {
&macio_dev_group,
NULL,
};