linux-kernel - Re: [PATCH v5 1/2] arm64: dts: qcom: sc7180-trogdor: Add lpass dai link for I2S driver

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Date:   Sat, 13 Mar 2021 10:11:23 +0530
From:   Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
To:     Doug Anderson <dianders@...omium.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
        Rohit kumar <rohitkr@...eaurora.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Judy Hsiao <judyhsiao@...omium.org>,
        Ajit Pandey <ajitp@...eaurora.org>,
        V Sujith Kumar Reddy <vsujithk@...eaurora.org>
Subject: Re: [PATCH v5 1/2] arm64: dts: qcom: sc7180-trogdor: Add lpass dai
 link for I2S driver

Hi Doug,

Thanks for your time and inputs!!!

On 3/13/2021 2:58 AM, Doug Anderson wrote:
> Hi,
>
> On Fri, Mar 12, 2021 at 8:06 AM Srinivasa Rao Mandadapu
> <srivasam@...eaurora.org> wrote:
>> +               dai-link@0 {
>> +                       link-name = "MultiMedia0";
>> +                       reg = <MI2S_PRIMARY>;
>> +                       cpu {
>> +                               sound-dai = <&lpass_cpu MI2S_PRIMARY>;
>> +                       };
>> +
>> +                       multimedia0_codec: codec {
>> +                               sound-dai = <&alc5682 MI2S_PRIMARY>;
> Please change "MI2S_PRIMARY" to "0". "MI2S_PRIMARY" is a numbering
> system for "lpass_cpu" not for "alc5682". I'm not aware of symbolic
> names for the alc5682's DAIs.
>
>  From digging through the code and testing, it appears that for alc5682:
> 0 - aif1
> 1 - aif2
>
> Thus you could be a little more documenting by doing:
>
> sound-dai = <&alc5682 0 /*aif1*/>;
>
> -Doug
Okay, I will change accordingly.

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