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-rw-r--r--arch/powerpc/kernel/vio.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 2a3428bef83..b8e311d64ad 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1381,6 +1381,29 @@ static int vio_hotplug(struct device *dev, struct kobj_uevent_env *env)
return 0;
}
+static int vio_pm_suspend(struct device *dev)
+{
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ if (pm && pm->suspend)
+ return pm->suspend(dev);
+ return 0;
+}
+
+static int vio_pm_resume(struct device *dev)
+{
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ if (pm && pm->resume)
+ return pm->resume(dev);
+ return 0;
+}
+
+const struct dev_pm_ops vio_dev_pm_ops = {
+ .suspend = vio_pm_suspend,
+ .resume = vio_pm_resume,
+};
+
static struct bus_type vio_bus_type = {
.name = "vio",
.dev_attrs = vio_dev_attrs,
@@ -1388,6 +1411,7 @@ static struct bus_type vio_bus_type = {
.match = vio_bus_match,
.probe = vio_bus_probe,
.remove = vio_bus_remove,
+ .pm = &vio_dev_pm_ops,
};
/**