diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 8f8019d40d77..4d9df803ad47 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -943,10 +943,6 @@ struct intel_csc_matrix {
 	u16 postoff[3];
 };
 
-void intel_io_mmio_fw_write(void *ctx, i915_reg_t reg, u32 val);
-
-typedef void (*intel_io_reg_write)(void *ctx, i915_reg_t reg, u32 val);
-
 struct intel_crtc_state {
 	/*
 	 * uapi (drm) state. This is the software state shown to userspace.