ARM: shmobile: bockw: add R-Car sound support (PIO)
This patch enables R-Car sound, AK4643 (CN19) and AK4554 (CN20/CN21) codec chip on Bock-W. But, it supports PIO transfer only at this point. User can check sound settings (Dip-switch/PFC etc) via this patch, but will get under/over flow error when playback/capture. Because PIO transfer via SSI will be interrupted "sampling rate" times per 1 second. DMA transfer will be supported when HPB-DMAC was enabled on r8a7778. You will notice strange ALSA sound card HW numbering on Bock-W board. This came from AK4554 strange format on playback/capture. The format on playback/capture is same on "normal" codec chip, but AK4554 was different. Because of that, AK4554 playback/capture are registered as a different sound card. Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com> [horms+renesas@verge.net.au: squashed cleanup of SND_SOC_xxx in Kconfig by Kuninori Morimoto] Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
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