ARM: sa1111: add shutdown hook to sa1111_driver structure

Add a shutdown hook to the sa1111_driver structure to allow drivers
to be notified of system reboots and shutdowns.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index b64a3360c8c2..b0f93628dcd7 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -1348,6 +1348,14 @@ static int sa1111_bus_resume(struct device *dev)
         return ret;
 }
 
+static void sa1111_bus_shutdown(struct device *dev)
+{
+        struct sa1111_driver *drv = SA1111_DRV(dev->driver);
+
+        if (drv && drv->shutdown)
+                drv->shutdown(SA1111_DEV(dev));
+}
+
 static int sa1111_bus_probe(struct device *dev)
 {
         struct sa1111_dev *sadev = SA1111_DEV(dev);
@@ -1377,6 +1385,7 @@ struct bus_type sa1111_bus_type = {
         .remove         = sa1111_bus_remove,
         .suspend        = sa1111_bus_suspend,
         .resume         = sa1111_bus_resume,
+        .shutdown       = sa1111_bus_shutdown,
 };
 EXPORT_SYMBOL(sa1111_bus_type);