linux-kernel - Re: [PATCH v2] arm64: defconfig: Enable HDA INTEL config for ARM64

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Message-ID: <35eb1396-b91b-8a7f-6585-30d2f2adcf85@nvidia.com>
Date:   Fri, 20 Jan 2023 11:18:04 +0530
From:   Mohan Kumar D <mkumard@...dia.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        catalin.marinas@....com, will@...nel.org,
        dmitry.baryshkov@...aro.org, shawnguo@...nel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        treding@...dia.com, jonathanh@...dia.com
Subject: Re: [PATCH v2] arm64: defconfig: Enable HDA INTEL config for ARM64


On 18-01-2023 18:06, Krzysztof Kozlowski wrote:
> External email: Use caution opening links or attachments
>
>
> On 18/01/2023 12:46, Mohan Kumar D wrote:
>> On 18-01-2023 13:04, Krzysztof Kozlowski wrote:
>>> External email: Use caution opening links or attachments
>>>
>>>
>>> On 17/01/2023 19:16, Mohan Kumar wrote:
>>>> Enable CONFIG_SND_HDA_INTEL for NVIDIA PCI based graphics sound card for
>>>> ARM64 based platforms as Intel PCI driver was used for registering the
>>>> sound card.
>>> It's not a part of SoC, not a common device used during debugging or
>>> development, so I don't think it is reasonable to enable it. We do not
>>> enable driver just because someone uses them. Otherwise please clarify
>>> which board has this device embedded (not pluggable by user, but embedded).
>> This change is required for enabling HDA sound registration for Nvidia
>> discrete GPU cards based on PCI and pluggable to Nvidia Jetson Platforms.
> You can plug anything to PCI slot and we do not enable every such PCI
> adapter.
Without this config enabled, the Intel hda audio driver won't be built 
and dGPU won't be able to register sound card. Do you have any 
suggestion here?
>
> Best regards,
> Krzysztof
>