powerpc/vio: Separate vio bus probe and device probe

Similar to PCI, separate the bus probe from device probe. This allows
us to attach bus notifiers for DMA debug and IOMMU fault injection
before devices have been probed.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 7d05fe2b5637..3bb5be5da31c 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1497,12 +1497,18 @@ static int __init vio_bus_init(void)
         if (firmware_has_feature(FW_FEATURE_CMO))
                 vio_cmo_bus_init();
 
+        return 0;
+}
+postcore_initcall(vio_bus_init);
+
+static int __init vio_device_init(void)
+{
         vio_bus_scan_register_devices("vdevice");
         vio_bus_scan_register_devices("ibm,platform-facilities");
 
         return 0;
 }
-__initcall(vio_bus_init);
+device_initcall(vio_device_init);
 
 static ssize_t name_show(struct device *dev,
                 struct device_attribute *attr, char *buf)