| From 1cf5ea91c65ef200e19cdd7ffa3176768e8d9fee Mon Sep 17 00:00:00 2001 |
| From: Jean-Francois Moine <moinejf@free.fr> |
| Date: Thu, 20 Mar 2014 11:04:16 +0100 |
| Subject: ASoC: simple-card: Add DT documentation for multi-DAI links |
| |
| Many couples of CPU/CODEC DAI links may be described in the DT |
| thanks to 'simple-audio-card,dai-link' containers. |
| |
| Signed-off-by: Jean-Francois Moine <moinejf@free.fr> |
| Signed-off-by: Mark Brown <broonie@linaro.org> |
| (cherry picked from commit 015f630de86c8a79df45c475c34087d3e96b882a) |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| --- |
| .../devicetree/bindings/sound/simple-card.txt | 42 +++++++++++++++++++++- |
| 1 file changed, 41 insertions(+), 1 deletion(-) |
| |
| diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt |
| index 881914b139ca..131aa2ad7f1a 100644 |
| --- a/Documentation/devicetree/bindings/sound/simple-card.txt |
| +++ b/Documentation/devicetree/bindings/sound/simple-card.txt |
| @@ -23,6 +23,11 @@ Optional properties: |
| |
| Required subnodes: |
| |
| +- simple-audio-card,dai-link : container for the CPU and CODEC sub-nodes |
| + This container may be omitted when the |
| + card has only one DAI link. |
| + See the examples. |
| + |
| - simple-audio-card,cpu : CPU sub-node |
| - simple-audio-card,codec : CODEC sub-node |
| |
| @@ -49,7 +54,7 @@ Note: |
| CPU and CODEC sides as we need to keep the settings identical for both ends |
| of the link. |
| |
| -Example: |
| +Example 1 - single DAI link: |
| |
| sound { |
| compatible = "simple-audio-card"; |
| @@ -94,3 +99,38 @@ sh_fsi2: sh_fsi2@ec230000 { |
| interrupt-parent = <&gic>; |
| interrupts = <0 146 0x4>; |
| }; |
| + |
| +Example 2 - many DAI links: |
| + |
| +sound { |
| + compatible = "simple-audio-card"; |
| + simple-audio-card,name = "Cubox Audio"; |
| + simple-audio-card,format = "i2s"; |
| + |
| + simple-audio-card,dai-link@0 { /* I2S - HDMI */ |
| + simple-audio-card,cpu { |
| + sound-dai = <&audio1 0>; |
| + }; |
| + simple-audio-card,codec { |
| + sound-dai = <&tda998x 0>; |
| + }; |
| + }; |
| + |
| + simple-audio-card,dai-link@1 { /* S/PDIF - HDMI */ |
| + simple-audio-card,cpu { |
| + sound-dai = <&audio1 1>; |
| + }; |
| + simple-audio-card,codec { |
| + sound-dai = <&tda998x 1>; |
| + }; |
| + }; |
| + |
| + simple-audio-card,dai-link@2 { /* S/PDIF - S/PDIF */ |
| + simple-audio-card,cpu { |
| + sound-dai = <&audio1 1>; |
| + }; |
| + simple-audio-card,codec { |
| + sound-dai = <&spdif_codec>; |
| + }; |
| + }; |
| +}; |
| -- |
| 2.1.2 |
| |