diff --git a/drivers/soundwire/debugfs.c b/drivers/soundwire/debugfs.c
new file mode 100644
index 000000000000..8d86e100516e
--- /dev/null
+++ b/drivers/soundwire/debugfs.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
No, for debugfs-specific code, that dual license makes no sense, right?
Don't cargo-cult SPDX identifiers please.
It's a miss, I used EXPORT_GPL and missed this line, will fix.
+// Copyright(c) 2017-19 Intel Corporation.
Spell the year out fully unless you want lawyers knocking on your door :)
haha, will fix.
+
+#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_registers.h>
+#include "bus.h"
+
+#ifdef CONFIG_DEBUG_FS
+struct dentry *sdw_debugfs_root;
+#endif
This whole file is not built if that option is not enabled, so why the
#ifdef?
Ah, will look into this, thanks!
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