[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>

2 files changed, 18 insertions, 0 deletions

diff --git a/drivers/ps3/vuart.c b/drivers/ps3/vuart.c
index a72da8f651f8..ef8fd4c30875 100644
--- a/drivers/ps3/vuart.c
+++ b/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)
diff --git a/drivers/ps3/vuart.h b/drivers/ps3/vuart.h
index 11c421cf7a03..2cbf728a3a0b 100644
--- a/drivers/ps3/vuart.h
+++ b/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);