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-rw-r--r--drivers/gpio/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index aeb70e9de6f2..8a2dfba3b231 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
# generic gpio support: platform drivers, dedicated expander chips, etc
ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG