linux-kernel - Re: [PATCH v2 6/7] ASoC: mediatek: mt8188-mt6359: support new board with nau88255

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Message-ID: <774022a4-8cc8-9fe8-145d-a51be5abf951@baylibre.com>
Date:   Thu, 25 May 2023 09:47:47 +0200
From:   Alexandre Mergnat <amergnat@...libre.com>
To:     Trevor Wu (吳文良) <Trevor.Wu@...iatek.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>
Cc:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 6/7] ASoC: mediatek: mt8188-mt6359: support new board
 with nau88255

On 25/05/2023 05:44, Trevor Wu (吳文良) wrote:
> On Wed, 2023-05-24 at 17:51 +0200, Alexandre Mergnat wrote:
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>>
>>
>> On 23/05/2023 04:19, Trevor Wu wrote:
>>>        card_data = (struct mt8188_card_data
>>> *)of_device_get_match_data(&pdev->dev);
>>> @@ -776,9 +1066,38 @@ static int mt8188_mt6359_dev_probe(struct
>>> platform_device *pdev)
>>>                                dai_link->init = mt8188_mt6359_init;
>>>                                init_mt6359 = true;
>>>                        }
>>> +             } else if (strcmp(dai_link->name, "ETDM1_OUT_BE") ==
>>> 0 ||
>>> +                        strcmp(dai_link->name, "ETDM2_OUT_BE") ==
>>> 0 ||
>>> +                        strcmp(dai_link->name, "ETDM1_IN_BE") == 0
>>> ||
>>> +                        strcmp(dai_link->name, "ETDM2_IN_BE") ==
>>> 0) {
>>> +                     if (!strcmp(dai_link->codecs->dai_name,
>>> MAX98390_CODEC_DAI)) {
>>> +                             dai_link->ops = &mt8188_max98390_ops;
>>> +                             if (init_max98390)
>>> +                                     continue;
>>
>> I prefer that you do like your patch [PATCH v2 1/7] to be consistent
>> and easy to read.
> 
> OK, I will unify the style in v3.
> 
>>
>> +                       if (!init_mt6359) {
>> +                               dai_link->init = mt8188_mt6359_init;
>> +                               init_mt6359 = true;
>> +                       }
>>
>>> +
>>> +                             dai_link->init =
>>> mt8188_max98390_codec_init;
>>> +                             init_max98390 = true;
>>> +                     } else if (!strcmp(dai_link->codecs-
>>>> dai_name, NAU8825_CODEC_DAI)) {
>>> +                             dai_link->ops = &mt8188_nau8825_ops;
>>> +                             if (init_nau8825)
>>> +                                     continue;
>>
>> ditto
>>
>>> +
>>> +                             dai_link->init =
>>> mt8188_nau8825_codec_init;
>>> +                             dai_link->exit =
>>> mt8188_nau8825_codec_exit;
>>> +                             init_nau8825 = true;
>>> +                     } else {
>>> +                             if (strcmp(dai_link->codecs-
>>>> dai_name, "snd-soc-dummy-dai")) {
>>
>> Shouldn't be with a NOT operator ("!") ?
>> + if (!strcmp(dai_link->codecs->dai_name, "snd-soc-dummy-dai")) {
>>
> 
> strcmp returns 0 when the contents of both strings are equal. The
> default codec name is "snd-soc-dummy-dai". When the codec is specified
> from dts, the return value of strcmp will be non-zero and this is the
> case I want to assign init function. Therefore, it doesn't require a
> NOT operator here.

Ok, I thought "mt8188_dumb_amp_init" was for "snd-soc-dummy-dai".
It's fine for me.

-- 
Regards,
Alexandre