linux-kernel - Re: [PATCH v1 2/2] ASoC: qcom: qcm6490: Add machine driver for qcm6490

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Date: Tue, 2 Apr 2024 14:50:56 +0530
From: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC: <srinivas.kandagatla@...aro.org>, <bgoswami@...cinc.com>,
        <broonie@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <andersson@...nel.org>, <konrad.dybcio@...aro.org>,
        <lgirdwood@...il.com>, <tiwai@...e.com>, <quic_rohkumar@...cinc.com>,
        <linux-kernel@...r.kernel.org>, <alsa-devel@...a-project.org>,
        <linux-sound@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v1 2/2] ASoC: qcom: qcm6490: Add machine driver for
 qcm6490

On 3/30/2024 12:09 AM, Dmitry Baryshkov wrote:
> Hi,
> 
> On Fri, 29 Mar 2024 at 17:20, Mohammad Rafi Shaik <quic_mohs@...cinc.com> wrote:
>>
>>
>> On 3/27/2024 6:39 PM, Dmitry Baryshkov wrote:
>>
>> On Wed, 27 Mar 2024 at 13:34, Mohammad Rafi Shaik <quic_mohs@...cinc.com> wrote:
> 
> Please turn off HTML mail composition and never ever send HTML email
> to OSS mailing lists.
> Now quotation levels are broken...
> 
>>
>> Add machine driver for qcm6490 SoC.
>>
>> This initial supports which includes WSA883x Speakers with onboard DMIC
>> connected to internal LPASS codec via VA macros respectively and also
>> WCD937x based headset.
>>
>> Add compatible for sound card on Qualcomm qcs6490 boards.
>>
>> Granted that qcm6490 is similar to sc7280, is there any reason why you
>> can not use one of the existing sound card drivers? Like sc7280.c or
>> sc8280xp.c?
>>
>> The qcs6490/qcm6490 has additional interfaces like MI2S, which requires additional machine driver modification.
>>
>> Example : Required new DAPM widget change in machine driver for MI2S interface which is specific to qcs6490/qcm6490.
>>
>> So, using new qcm6490 machine driver.
>>
>> Will try to use existing sc8280xp.c machine driver.
> 
> What about sc7280? In the end, qcm6490 is sc7280 with different firmware / spin.
> 
>

The sc7280 is tightly linked with realtek codec. which will only support 
for chrome.

The sc8280xp.c machine driver is more suitable for qcm6490, will use 
same sc8280xp.