remove_dma_window_named
remove_dma_window_named(pdn, true, name, true);
remove_dma_window_named(pdn, true, direct_mapping ?
if (remove_dma_window_named(pdn, true, win_name, false)) {
remove_dma_window_named(pdn, true, "ibm,dma-window", true);
if (remove_dma_window_named(np, false, DIRECT64_PROPNAME, true))
remove_dma_window_named(np, false, DMA64_PROPNAME, true);