1 files changed, 4 insertions, 0 deletions

diff --git a/include/asm-mips/i8253.h b/include/asm-mips/i8253.h
index 778b2f023905..032ca73f181b 100644
--- a/include/asm-mips/i8253.h
+++ b/include/asm-mips/i8253.h
@@ -5,11 +5,15 @@
 #ifndef __ASM_I8253_H
 #define __ASM_I8253_H
 
+#include <linux/spinlock.h>
+
 /* i8253A PIT registers */
 #define PIT_MODE                0x43
 #define PIT_CH0                 0x40
 #define PIT_CH2                 0x42
 
+extern spinlock_t i8253_lock;
+
 extern void setup_pit_timer(void);
 
 #endif /* __ASM_I8253_H */