Re: [PATCH 1/2] ALSA: hda/realtek: Accelerate the front MIC charging and discharging of the 897 codec

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On Mon, 04 Aug 2025 08:17:58 +0200,
Takashi Iwai wrote:
> 
> On Mon, 04 Aug 2025 05:05:17 +0200,
> wangdich9700@xxxxxxx wrote:
> > 
> > From: wangdicheng <wangdicheng@xxxxxxxxxx>
> > 
> > The front MIC capacitance of the Inspur board is too large, resulting in a longer charging and discharging time required,
> > which in turn prevents recording for 5 seconds before startup.
> > Therefore, software is used to increase the delay by 2 seconds to avoid this issue.
> 
> First off, the HD-audio code was replaced in the latest Linus tree to
> sound/hda/* directories, so please adapt the patches accordingly.
> 
> About the code change:
> 
> - The 2.5 seconds wait is way too long and inappropriate to be put in
>   the resume callback.  It has to be fixed differently.
> 
> - Does it apply really to all devices with 0x10ec1304?  It's Realtek's
>   vendor id, so this can match to many devices.
> 
> - Last but not least, it's not nice to have a code that depends on the
>   certain vendor id there.  Again, please implement in a different way
>   so that it can be handled in more device-specific code rather than
>   the common function.

One more thing: the mailing list for Linux kernel sound stuff is
linux-sound@xxxxxxxxxxxxxxx.  Please use this one instead of
alsa-devel ML.


thanks,

Takashi



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