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Diffstat (limited to 'include/dt-bindings/gpio/gpio.h')
-rw-r--r--include/dt-bindings/gpio/gpio.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/dt-bindings/gpio/gpio.h b/include/dt-bindings/gpio/gpio.h
index c5074584561d..32dd58a3d13c 100644
--- a/include/dt-bindings/gpio/gpio.h
+++ b/include/dt-bindings/gpio/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* This header provides constants for most GPIO bindings.
*