Hi Mark
These patches adds CTU (= Channel Transfer Unit) support to
Renesas R-Car sound driver.
It can exchange channel order
ex) channel {0,1,2,3} -> channel {3,2,1,0}
And it can add/reduce each channels sound
ex) (input 0th ch x 0.5) + (input 2nd ch x 0.5) = output 1st ch
You need to check R-Car datasheet for each detail settings,
or check 6) patch
Kuninori Morimoto (6):
1) ASoC: rsnd: don't call update callback if it was NULL
2) ASoC: rsrc-card: add convert channels support
3) ASoC: rsnd: tidyup rsnd_ssiu_init_gen2()
4) ASoC: rsnd: add CTU basic support
5) ASoC: rsnd: add rsnd_runtime_channel_xxx()
6) ASoC: rsnd: add CTU support
Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt | 1 +
sound/soc/sh/rcar/core.c | 71 ++++++++++++++----------
sound/soc/sh/rcar/ctu.c | 287 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------
sound/soc/sh/rcar/dvc.c | 2 +-
sound/soc/sh/rcar/mix.c | 2 +-
sound/soc/sh/rcar/rsnd.h | 9 +++-
sound/soc/sh/rcar/rsrc-card.c | 22 +++++---
sound/soc/sh/rcar/src.c | 2 +-
sound/soc/sh/rcar/ssi.c | 15 +++---
sound/soc/sh/rcar/ssiu.c | 11 ++--
10 files changed, 330 insertions(+), 92 deletions(-)
Best regards
---
Kuninori Morimoto
