From 70fb10529f61c31c26397a02091177bedd23217d Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 15 Jul 2015 07:17:36 +0000 Subject: ASoC: rsnd: add MIX (Mixer) support This patch adds MIX (Mixer) initial support for rsnd driver. It is assuming that this MIX is used via DPCM. This is sample code for playback. CPU0 : [MEM] -> [SRC1] -> [CTU02] -+ | +-> [MIX0] -> [DVC0] -> [SSI0] | CPU1 : [MEM] -> [SRC2] -> [CTU03] -+ sound { compatible = "renesas,rsrc-card"; ... cpu@0 { sound-dai = <&rcar_sound 0>; }; cpu@1 { sound-dai = <&rcar_sound 1>; }; codec { ... }; }; rcar_sound { ... rcar_sound,dai { dai0 { playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>; }; dai1 { playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>; }; }; }; Signed-off-by: Kuninori Morimoto Tested-by: Keita Kobayashi Signed-off-by: Mark Brown --- sound/soc/sh/rcar/dma.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'sound/soc/sh/rcar/dma.c') diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index 229b68d2cf70..305b12929853 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -427,6 +427,7 @@ rsnd_gen2_dma_addr(struct rsnd_dai_stream *io, int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod); int use_src = !!rsnd_io_to_mod_src(io); int use_cmd = !!rsnd_io_to_mod_dvc(io) || + !!rsnd_io_to_mod_mix(io) || !!rsnd_io_to_mod_ctu(io); int id = rsnd_mod_id(mod); struct dma_addr { @@ -506,6 +507,7 @@ static void rsnd_dma_of_path(struct rsnd_dma *dma, struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io); struct rsnd_mod *src = rsnd_io_to_mod_src(io); struct rsnd_mod *ctu = rsnd_io_to_mod_ctu(io); + struct rsnd_mod *mix = rsnd_io_to_mod_mix(io); struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); struct rsnd_mod *mod[MOD_MAX]; struct rsnd_mod *mod_start, *mod_end; @@ -548,6 +550,9 @@ static void rsnd_dma_of_path(struct rsnd_dma *dma, } else if (ctu) { mod[i] = ctu; ctu = NULL; + } else if (mix) { + mod[i] = mix; + mix = NULL; } else if (dvc) { mod[i] = dvc; dvc = NULL; -- cgit v1.2.3