diff --git a/src/soc/intel/baytrail/gfx.c b/src/soc/intel/baytrail/gfx.c
index 7e65c96..fe842ac 100644
--- a/src/soc/intel/baytrail/gfx.c
+++ b/src/soc/intel/baytrail/gfx.c
@@ -386,7 +386,7 @@
 	intel_gma_restore_opregion();
 }
 
-static void gma_generate_ssdt(struct device *dev)
+static void gma_generate_ssdt(const struct device *dev)
 {
 	const struct soc_intel_baytrail_config *chip = dev->chip_info;