powerpc: Add a shutdown member to vio_driver
Add a shutdown member to struct vio_driver. We also need vio_bus_shutdown()
which converts from struct device to struct vio_dev and knows how to extract
the struct vio_driver.
Original patch adjusted for different location of vio.c.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 3aec492..97082a4 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -69,6 +69,16 @@
return 1;
}
+/* convert from struct device to struct vio_dev and pass to driver. */
+static void vio_bus_shutdown(struct device *dev)
+{
+ struct vio_dev *viodev = to_vio_dev(dev);
+ struct vio_driver *viodrv = to_vio_driver(dev->driver);
+
+ if (viodrv->shutdown)
+ viodrv->shutdown(viodev);
+}
+
/**
* vio_register_driver: - Register a new vio driver
* @drv: The vio_driver structure to be registered.
@@ -82,6 +92,7 @@
viodrv->driver.bus = &vio_bus_type;
viodrv->driver.probe = vio_bus_probe;
viodrv->driver.remove = vio_bus_remove;
+ viodrv->driver.shutdown = vio_bus_shutdown;
return driver_register(&viodrv->driver);
}
diff --git a/include/asm-powerpc/vio.h b/include/asm-powerpc/vio.h
index 104c585..e0ccf10 100644
--- a/include/asm-powerpc/vio.h
+++ b/include/asm-powerpc/vio.h
@@ -58,6 +58,7 @@
const struct vio_device_id *id_table;
int (*probe)(struct vio_dev *dev, const struct vio_device_id *id);
int (*remove)(struct vio_dev *dev);
+ void (*shutdown)(struct vio_dev *dev);
unsigned long driver_data;
struct device_driver driver;
};