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ASoC: rsnd: add rsnd_runtime_channel_xxx()

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Current SSI is supporting Normal SSI/Multi mode SSI/TDM mode SSI
and its behavior is based on input channels.
This input channel might be converted by CTU,
and SSI needs to be Multi SSI mode / TDM SSI mode if 6ch input

EX) 6ch input, CTU for 2ch, playback

 6ch    6ch    2ch    2ch    2ch     2ch
 -> SRC -> CTU -> MIX -> DVC -> SSIU -> SSI

EX) 6ch input, no CTU, Multi SSI, playback

 6ch    6ch    6ch    6ch    6ch     2ch
 -> SRC -> CTU -> MIX -> DVC -> SSIU -> SSI0/SSI1/SSI2

Current driver is using rsnd_get_adinr_chan() / rsnd_get_slot_width()
for this purpose, but it is complicated enough without meaning.
This patch adds new rsnd_runtime_channel_xxx() which is caring
CTU/Multi SSI.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto
2016-02-25 05:54:58 +00:00
committed by Mark Brown
parent 8a3a2211e9
commit eed76bb811
8 changed files with 62 additions and 44 deletions
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2
sound/soc/sh/rcar/src.c
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@@ -205,7 +205,7 @@ static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
* SRC_ADINR
*/
adinr = rsnd_get_adinr_bit(mod, io) |
rsnd_get_adinr_chan(mod, io);
rsnd_runtime_channel_original(io);
/*
* SRC_IFSCR / SRC_IFSVR