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path: root/drivers/base/soc.c
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Diffstat (limited to 'drivers/base/soc.c')
-rw-r--r--drivers/base/soc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 909dedae4c4e..8141c0e1c7c3 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -34,6 +34,7 @@ static struct bus_type soc_bus_type = {
static DEVICE_ATTR(machine, S_IRUGO, soc_info_get, NULL);
static DEVICE_ATTR(family, S_IRUGO, soc_info_get, NULL);
static DEVICE_ATTR(soc_id, S_IRUGO, soc_info_get, NULL);
+static DEVICE_ATTR(unique_id, S_IRUGO, soc_info_get, NULL);
static DEVICE_ATTR(revision, S_IRUGO, soc_info_get, NULL);
struct device *soc_device_to_device(struct soc_device *soc_dev)
@@ -60,6 +61,9 @@ static umode_t soc_attribute_mode(struct kobject *kobj,
if ((attr == &dev_attr_soc_id.attr)
&& (soc_dev->attr->soc_id != NULL))
return attr->mode;
+ if ((attr == &dev_attr_unique_id.attr)
+ && (soc_dev->attr->unique_id != NULL))
+ return attr->mode;
/* Unknown or unfilled attribute. */
return 0;
@@ -79,6 +83,8 @@ static ssize_t soc_info_get(struct device *dev,
return sprintf(buf, "%s\n", soc_dev->attr->revision);
if (attr == &dev_attr_soc_id)
return sprintf(buf, "%s\n", soc_dev->attr->soc_id);
+ if (attr == &dev_attr_unique_id)
+ return sprintf(buf, "%s\n", soc_dev->attr->unique_id);
return -EINVAL;
@@ -88,6 +94,7 @@ static struct attribute *soc_attr[] = {
&dev_attr_machine.attr,
&dev_attr_family.attr,
&dev_attr_soc_id.attr,
+ &dev_attr_unique_id.attr,
&dev_attr_revision.attr,
NULL,
};
@@ -155,6 +162,7 @@ out2:
out1:
return ERR_PTR(ret);
}
+EXPORT_SYMBOL_GPL(soc_device_register);
/* Ensure soc_dev->attr is freed prior to calling soc_device_unregister. */
void soc_device_unregister(struct soc_device *soc_dev)
@@ -164,6 +172,7 @@ void soc_device_unregister(struct soc_device *soc_dev)
device_unregister(&soc_dev->dev);
early_soc_dev_attr = NULL;
}
+EXPORT_SYMBOL_GPL(soc_device_unregister);
static int __init soc_bus_register(void)
{