diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 4f33115f5ca3..e80d620846c8 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3060,7 +3060,7 @@ static bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp)
 	return dprx & DP_VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED;
 }
 
-bool intel_dp_get_alpm_status(struct intel_dp *intel_dp)
+static bool intel_dp_get_alpm_status(struct intel_dp *intel_dp)
 {
 	uint8_t alpm_caps = 0;