diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 0fba8f4..30a4028 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # SPI driver configuration
 #