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-rw-r--r--src/drivers/i2c/at24rf08c/lenovo.h2
-rw-r--r--src/drivers/i2c/ptn3460/chip.h2
-rw-r--r--src/drivers/intel/gma/edid.h2
3 files changed, 6 insertions, 0 deletions
diff --git a/src/drivers/i2c/at24rf08c/lenovo.h b/src/drivers/i2c/at24rf08c/lenovo.h
index 6824eb6f07..f94b9ee06d 100644
--- a/src/drivers/i2c/at24rf08c/lenovo.h
+++ b/src/drivers/i2c/at24rf08c/lenovo.h
@@ -1 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
const char *lenovo_mainboard_partnumber(void);
diff --git a/src/drivers/i2c/ptn3460/chip.h b/src/drivers/i2c/ptn3460/chip.h
index 8bd6d9e7d1..2bf7e5e783 100644
--- a/src/drivers/i2c/ptn3460/chip.h
+++ b/src/drivers/i2c/ptn3460/chip.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
struct drivers_i2c_ptn3460_config {
};
diff --git a/src/drivers/intel/gma/edid.h b/src/drivers/intel/gma/edid.h
index d8214cf329..90d4c01c66 100644
--- a/src/drivers/intel/gma/edid.h
+++ b/src/drivers/intel/gma/edid.h
@@ -1,2 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
void intel_gmbus_read_edid(u8 *gmbus_mmio, u8 bus, u8 slave, u8 *edid, u32 edid_size);
void intel_gmbus_stop(u8 *gmbus_mmio);