linux-kernel - Re: [PATCH 09/10] arm64: tegra: Audio graph header for Tegra210

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Message-ID: <6a84b5f8-3e9c-96e4-c8f8-ec95ff5e42ac@nvidia.com>
Date:   Mon, 3 Aug 2020 17:36:52 +0530
From:   Sameer Pujar <spujar@...dia.com>
To:     Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
CC:     <broonie@...nel.org>, <perex@...ex.cz>, <tiwai@...e.com>,
        <robh+dt@...nel.org>, <lgirdwood@...il.com>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <alsa-devel@...a-project.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <sharadg@...dia.com>,
        <mkumard@...dia.com>, <viswanathl@...dia.com>,
        <rlokhande@...dia.com>, <dramesh@...dia.com>,
        <atalambedu@...dia.com>, <nwartikar@...dia.com>,
        <swarren@...dia.com>, <nicoleotsuka@...il.com>
Subject: Re: [PATCH 09/10] arm64: tegra: Audio graph header for Tegra210


On 7/20/2020 10:21 AM, Kuninori Morimoto wrote:
> External email: Use caution opening links or attachments
>
>
> Hi Sameer
>
>>>> +&tegra_admaif {
>>>> +     admaif_port: port {
>>>> +             admaif0: endpoint@0 {
>>>> +                     remote-endpoint = <&xbar_admaif0>;
>>>> +             };
>>>> +             admaif1: endpoint@1 {
>>>> +                     remote-endpoint = <&xbar_admaif1>;
>>>> +             };
>>> (snip)
>>>> +             admaif8: endpoint@8 {
>>>> +                     remote-endpoint = <&xbar_admaif8>;
>>>> +             };
>>>> +             admaif9: endpoint@9 {
>>>> +                     remote-endpoint = <&xbar_admaif9>;
>>>> +             };
>>>> +     };
>>>> +};
>>> I'm not familiar with your system, so, one question.
>>> Does this ADMAIF has total 10 interface which is used in the same time ?
>>> or select one of 10 connections when use ?
>> One ore more ADMAIF interfaces can be used simultaneously. In fact all
>> of them can be used at the same time.
> Ah, sorry my questoin was not correct.
> I want to clarify was that below.
>
> In my understanding,
> if your system has 10 interfaces,
> you need to create 10 ports, not 10 endpoints.
> If your system has 1 interface, but is connected from 10
> devices, it has 1 port 10 endpoints.

OK, I see your point. I will work on re-organizing ports/endpoints and 
once tested will publish V2 for current series. Thanks for inputs.

>
> Thank you for your help !!
>
> Best regards
> ---
> Kuninori Morimoto