[PATCH] ps3: add shutdown to virtual uart port driver framework

PS3: Add a shutdown method to the PS3's virtual uart port driver framework
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/ps3/vuart.c

@@ -867,6 +867,22 @@ static int ps3_vuart_remove(struct device *_dev)
 	return 0;
 }
 
+static void ps3_vuart_shutdown(struct device *_dev)
+{
+	struct ps3_vuart_port_device *dev = to_ps3_vuart_port_device(_dev);
+	struct ps3_vuart_port_driver *drv =
+		to_ps3_vuart_port_driver(_dev->driver);
+
+	dev_dbg(&dev->core, "%s:%d: %s\n", __func__, __LINE__,
+		dev->core.bus_id);
+
+	if (drv->shutdown)
+		drv->shutdown(dev);
+	else
+		dev_dbg(&dev->core, "%s:%d: %s no shutdown method\n", __func__,
+			__LINE__, dev->core.bus_id);
+}
+
 /**
  * ps3_vuart - The vuart instance.
  *
@@ -878,6 +894,7 @@ struct bus_type ps3_vuart = {
 	.match = ps3_vuart_match,
 	.probe = ps3_vuart_probe,
 	.remove = ps3_vuart_remove,
+	.shutdown = ps3_vuart_shutdown,
 };
 
 int __init ps3_vuart_init(void)

drivers/ps3/vuart.h

@@ -30,6 +30,7 @@ struct ps3_vuart_port_driver {
 	struct device_driver core;
 	int (*probe)(struct ps3_vuart_port_device *);
 	int (*remove)(struct ps3_vuart_port_device *);
+	void (*shutdown)(struct ps3_vuart_port_device *);
 	int (*tx_event)(struct ps3_vuart_port_device *dev);
 	int (*rx_event)(struct ps3_vuart_port_device *dev);
 	int (*disconnect_event)(struct ps3_vuart_port_device *dev);