ideapad: let camera power control entry under platform driver

The entry was at /sys/devices/LNXSYSTM:00/../VPC2004:00/camera_power
move to /sys/devices/platform/ideapad/camera_power

Add document about usage of ideapad node in sysfs.

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
new file mode 100644
index 0000000..807fca2
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
@@ -0,0 +1,6 @@
+What:		/sys/devices/platform/ideapad/camera_power
+Date:		Dec 2010
+KernelVersion:	2.6.37
+Contact:	"Ike Panhc <ike.pan@canonical.com>"
+Description:
+		Control the power of camera module. 1 means on, 0 means off.