microblaze: Return default dma operations

Return Microblaze default dma operations
and remove bus notifier which setups the same dma operations
by default when device is added to the system.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 0 insertions, 28 deletions

diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 67cc4b282cc1..ef011295777f 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -229,31 +229,3 @@ static int __init debugfs_tlb(void)
 device_initcall(debugfs_tlb);
 # endif
 #endif
-
-static int dflt_bus_notify(struct notifier_block *nb,
-                                unsigned long action, void *data)
-{
-        struct device *dev = data;
-
-        /* We are only intereted in device addition */
-        if (action != BUS_NOTIFY_ADD_DEVICE)
-                return 0;
-
-        set_dma_ops(dev, &dma_direct_ops);
-
-        return NOTIFY_DONE;
-}
-
-static struct notifier_block dflt_plat_bus_notifier = {
-        .notifier_call = dflt_bus_notify,
-        .priority = INT_MAX,
-};
-
-static int __init setup_bus_notifier(void)
-{
-        bus_register_notifier(&platform_bus_type, &dflt_plat_bus_notifier);
-
-        return 0;
-}
-
-arch_initcall(setup_bus_notifier);