ARM: shmobile: bockw: add R-Car sound support (PIO)

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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: Kuninori 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: Simon Horman <horms+renesas@verge.net.au>

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This commit is contained in:

Kuninori Morimoto 2013-08-26 01:52:35 -07:00 • committed by Simon Horman

parent 71d7472f63

commit 688e6a6df8

2 changed files with 275 additions and 1 deletions

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arch/arm/mach-shmobile/Kconfig

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274

arch/arm/mach-shmobile/board-bockw.c

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