On Fri, Nov 18, 2011 at 04:47:20PM +0530, Rajendra Nayak wrote:

+	struct device_node *regnode = NULL;
+	char prop_name[32]; /* 32 is max size of property name */

There ought to be a #define for that though I can't see one right now -
this can't be the only place where we need to do stuff like this.

+
+	dev_dbg(dev, "Looking up %s-supply from device tree\n", supply);
+
+	snprintf(prop_name, 32, "%s-supply", supply);

sizeof().