Re: [PATCH 3/3] soundwire: dmi-quirks: Disable ghost Realtek devices

[Pierre-Louis Bossart]

On 5/21/26 10:17, Charles Keepax wrote:
> On Wed, May 20, 2026 at 07:16:55PM +0200, Pierre-Louis Bossart wrote:
>> On 5/20/26 18:36, Charles Keepax wrote:
>> Could we filter instead those 'ghost' devices if they fail to
>> appear in the new ACPI table that describes all the endpoints
>> and card topology?
> 
> Eventually perhaps once that makes it out of the standardisation
> process (I believe the committee is looking at it), but for now
> that is all Microsoft magic that I would rather avoid.

Nothing prevents developers from reverse-engineering DSDT contents. I remember seeing all the information needed in the DSDT of one of the Dell devices.
The standardization was supposed to happen before Covid, I looked at this in 2020-2021. If it hasn't happened by now it's unlikely it ever will...
This DSDT information is interesting for Intel platforms, it could help probe a generic machine driver for the card but raises other problems with deferred probe,
c.f. https://lore.kernel.org/alsa-devel/20210817190057.255264-2-pierre-louis.bossart@xxxxxxxxxxxxxxx/

Anyways this patchset isn't wrong either, so 

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxx>