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[POWERPC] Create modalias file in sysfs for of_platform bus

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Create /sys/bus/of_platform/devices/*/modalias file to allow autoloading
of modules.  Modalias files are already present for many other bus types.
This adds also a newline to the devspec files.

Also create a devspec file for mac-io devices.  They were created as a
side effect.  Use correct buffer size for mac-io modalias buffer.

Tested on iBook1 and Efika.

Signed-off-by: Olaf Hering <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Olaf Hering 2008-04-24 23:16:00 +10:00 • committed by Paul Mackerras
commit 140b932f8c
3 changed files with 34 additions and 17 deletions
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12
drivers/macintosh/macio_sysfs.c
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@ -44,7 +44,7 @@ static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
struct of_device *ofdev = to_of_device(dev);
int len;
len = of_device_get_modalias(ofdev, buf, PAGE_SIZE);
len = of_device_get_modalias(ofdev, buf, PAGE_SIZE - 2);
buf[len] = '\n';
buf[len+1] = 0;
@ -52,6 +52,15 @@ static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
return len+1;
}
static ssize_t devspec_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct of_device *ofdev;
ofdev = to_of_device(dev);
return sprintf(buf, "%s\n", ofdev->node->full_name);
}
macio_config_of_attr (name, "%s\n");
macio_config_of_attr (type, "%s\n");
@ -60,5 +69,6 @@ struct device_attribute macio_dev_attrs[] = {
__ATTR_RO(type),
__ATTR_RO(compatible),
__ATTR_RO(modalias),
__ATTR_RO(devspec),
__ATTR_NULL
};