Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 67 insertions, 0 deletions

diff --git a/drivers/base/power/shutdown.c b/drivers/base/power/shutdown.c
new file mode 100644
index 000000000000..d1e023fbe169
--- /dev/null
+++ b/drivers/base/power/shutdown.c
@@ -0,0 +1,67 @@
+/*
+ * shutdown.c - power management functions for the device tree.
+ *
+ * Copyright (c) 2002-3 Patrick Mochel
+ *               2002-3 Open Source Development Lab
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/device.h>
+#include <asm/semaphore.h>
+
+#include "power.h"
+
+#define to_dev(node) container_of(node, struct device, kobj.entry)
+
+extern struct subsystem devices_subsys;
+
+
+int device_detach_shutdown(struct device * dev)
+{
+        if (!dev->detach_state)
+                return 0;
+
+        if (dev->detach_state == DEVICE_PM_OFF) {
+                if (dev->driver && dev->driver->shutdown)
+                        dev->driver->shutdown(dev);
+                return 0;
+        }
+        return dpm_runtime_suspend(dev, dev->detach_state);
+}
+
+
+/**
+ * We handle system devices differently - we suspend and shut them
+ * down last and resume them first. That way, we don't do anything stupid like
+ * shutting down the interrupt controller before any devices..
+ *
+ * Note that there are not different stages for power management calls -
+ * they only get one called once when interrupts are disabled.
+ */
+
+extern int sysdev_shutdown(void);
+
+/**
+ * device_shutdown - call ->shutdown() on each device to shutdown.
+ */
+void device_shutdown(void)
+{
+        struct device * dev;
+
+        down_write(&devices_subsys.rwsem);
+        list_for_each_entry_reverse(dev, &devices_subsys.kset.list, kobj.entry) {
+                pr_debug("shutting down %s: ", dev->bus_id);
+                if (dev->driver && dev->driver->shutdown) {
+                        pr_debug("Ok\n");
+                        dev->driver->shutdown(dev);
+                } else
+                        pr_debug("Ignored.\n");
+        }
+        up_write(&devices_subsys.rwsem);
+
+        sysdev_shutdown();
+}
+