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-rw-r--r--drivers/gpu/drm/radeon/atom.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atom.h b/drivers/gpu/drm/radeon/atom.h
index 364b895e7ebb..1bf06c91cd95 100644
--- a/drivers/gpu/drm/radeon/atom.h
+++ b/drivers/gpu/drm/radeon/atom.h
@@ -25,6 +25,7 @@
#ifndef ATOM_H
#define ATOM_H
+#include <linux/mutex.h>
#include <linux/types.h>
#define ATOM_BIOS_MAGIC 0xAA55