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path: root/drivers/pci/pci-sysfs.c
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Diffstat (limited to 'drivers/pci/pci-sysfs.c')
-rw-r--r--drivers/pci/pci-sysfs.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index d15c881e2e7e..fb072f4b3176 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -124,6 +124,15 @@ static ssize_t cpulistaffinity_show(struct device *dev,
}
static DEVICE_ATTR_RO(cpulistaffinity);
+static ssize_t power_state_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%s\n", pci_power_name(pdev->current_state));
+}
+static DEVICE_ATTR_RO(power_state);
+
/* show resources */
static ssize_t resource_show(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -581,6 +590,7 @@ static ssize_t driver_override_show(struct device *dev,
static DEVICE_ATTR_RW(driver_override);
static struct attribute *pci_dev_attrs[] = {
+ &dev_attr_power_state.attr,
&dev_attr_resource.attr,
&dev_attr_vendor.attr,
&dev_attr_device.attr,