diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index d0c5ba746e01..0ec11f2911af 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -980,6 +980,8 @@ static inline void spi_message_free(struct spi_message *m)
 	kfree(m);
 }
 
+extern void spi_set_cs_timing(struct spi_device *spi, u8 setup, u8 hold, u8 inactive_dly);
+
 extern int spi_setup(struct spi_device *spi);
 extern int spi_async(struct spi_device *spi, struct spi_message *message);
 extern int spi_async_locked(struct spi_device *spi,