This patch tidyups rsnd_dma_addr(), but there is no effect. This is prepare for Gen4 support. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87sffq5elx.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>