diff --git a/drivers/spi/tegra20_slink.c b/drivers/spi/tegra20_slink.c
index dcd0950..3679cf0 100644
--- a/drivers/spi/tegra20_slink.c
+++ b/drivers/spi/tegra20_slink.c
@@ -14,6 +14,7 @@
 #include <asm/arch-tegra/clk_rst.h>
 #include <spi.h>
 #include <fdtdec.h>
+#include <linux/bitops.h>
 #include <linux/delay.h>
 #include "tegra_spi.h"