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ASoC: rsnd: add MIX (Mixer) support

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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 <kuninori.morimoto.gx@renesas.com>
Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto
2015-07-15 07:17:36 +00:00
committed by Mark Brown
parent 9269e3c3cf
commit 70fb10529f
8 changed files with 333 additions and 13 deletions
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7
include/sound/rcar_snd.h
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@@ -65,6 +65,10 @@ struct rsnd_ctu_platform_info {
u32 flags;
};
struct rsnd_mix_platform_info {
u32 flags;
};
struct rsnd_dvc_platform_info {
u32 flags;
};
@@ -73,6 +77,7 @@ struct rsnd_dai_path_info {
struct rsnd_ssi_platform_info *ssi;
struct rsnd_src_platform_info *src;
struct rsnd_ctu_platform_info *ctu;
struct rsnd_mix_platform_info *mix;
struct rsnd_dvc_platform_info *dvc;
};
@@ -100,6 +105,8 @@ struct rcar_snd_info {
int src_info_nr;
struct rsnd_ctu_platform_info *ctu_info;
int ctu_info_nr;
struct rsnd_mix_platform_info *mix_info;
int mix_info_nr;
struct rsnd_dvc_platform_info *dvc_info;
int dvc_info_nr;
struct rsnd_dai_platform_info *dai_info;