drm/amdkcl: adapt for drm_connector_helper_funcs->atomic_check() prot…

…otype change

prototype change is in v5.2-rc2-529-g6f3b62781bbd
macro HDMI_DRM_INFOFRAME_SIZE is introduced in v5.1-rc5-1691-g2cdbfd66a829
thus there's no need to check atomic_check() availability.

Signed-off-by: Flora Cui <flora.cui@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Flora Cui <flora.cui@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -5395,10 +5395,16 @@ is_hdr_metadata_different(const struct drm_connector_state *old_state,
 
 static int
 amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
+#ifdef HAVE_DRM_CONNECTOR_HELPER_FUNCS_ATOMIC_CHECK_ARG_DRM_ATOMIC_STATE
 				 struct drm_atomic_state *state)
 {
 	struct drm_connector_state *new_con_state =
 		drm_atomic_get_new_connector_state(state, conn);
+#else
+				 struct drm_connector_state *new_con_state)
+{
+	struct drm_atomic_state *state = new_con_state->state;
+#endif
 	struct drm_connector_state *old_con_state =
 		drm_atomic_get_old_connector_state(state, conn);
 	struct drm_crtc *crtc = new_con_state->crtc;