linux-kernel - Re: [PATCH v5 11/14] ASoC: add simple-graph-card document

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Message-ID: <87h96hc1us.wl%kuninori.morimoto.gx@renesas.com>
Date:   Tue, 6 Dec 2016 00:57:19 +0000
From:   Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To:     Rob Herring <robh@...nel.org>
CC:     Mark Brown <broonie@...nel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Simon <horms@...ge.net.au>,
        Laurent <laurent.pinchart@...asonboard.com>,
        Guennadi <g.liakhovetski@....de>,
        "Grant Likely" <grant.likely@...aro.org>,
        Frank Rowand <frowand.list@...il.com>,
        Linux-DT <devicetree@...r.kernel.org>,
        Linux-Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 11/14] ASoC: add simple-graph-card document


Hi Rob

> I'd expect the top level node to be the card node that knows how to find 
> all the components. The graph should reflect the data flow. For example, 
> the data goes to audio DSP to I2S host to codec to amp. 

Do you mean, is this OK for OF graph ?
in driver point of view, "I2S" is sound card here.

I2S {
	port {
		i2s-dsp: endpoint {
			remote-endpoint = <&dsp>;
		}
		i2s-codec: endpoint {
			remote-endpoint = <&codec>;
		}
	}
}

DSP {
	port {
		dsp: endpoint {
			remote-endpoint = <&i2s-dsp>;
		}
	}
}

Codec {
	port {
		codec: endpoint {
			remote-endpoint = <&i2s-codec>;
		}
	}
}