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>

diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index b64a3360c8c20391d6f88bc3343abd00cc49c2f3..b0f93628dcd7006e6d3c11f52fea01faa88a43ec 100644 (file)
--- 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);
 

diff --git a/arch/arm/include/asm/hardware/sa1111.h b/arch/arm/include/asm/hardware/sa1111.h
index 92ed254c175bd53b15692ebbcce5dda6174dc95f..29e320f6f85fdf31f58165d59714f5c4b54ef026 100644 (file)
--- a/arch/arm/include/asm/hardware/sa1111.h
+++ b/arch/arm/include/asm/hardware/sa1111.h
@@ -548,6 +548,7 @@ struct sa1111_driver {
        int (*remove)(struct sa1111_dev *);
        int (*suspend)(struct sa1111_dev *, pm_message_t);
        int (*resume)(struct sa1111_dev *);
+       void (*shutdown)(struct sa1111_dev *);
 };
 
 #define SA1111_DRV(_d) container_of((_d), struct sa1111_driver, drv)