Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/greybus/debugfs.c b/drivers/greybus/debugfs.c
new file mode 100644
index 0000000..e102d7b
--- /dev/null
+++ b/drivers/greybus/debugfs.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus debugfs code
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/greybus.h>
+
+static struct dentry *gb_debug_root;
+
+void __init gb_debugfs_init(void)
+{
+ gb_debug_root = debugfs_create_dir("greybus", NULL);
+}
+
+void gb_debugfs_cleanup(void)
+{
+ debugfs_remove_recursive(gb_debug_root);
+ gb_debug_root = NULL;
+}
+
+struct dentry *gb_debugfs_get(void)
+{
+ return gb_debug_root;
+}
+EXPORT_SYMBOL_GPL(gb_debugfs_get);