linux-kernel - Re: sdhci_pci module is blocking low power s0ix sleep with GL9767

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Message-ID: <CAPDyKFrT6-nes784c9rCtqdJZ0nCFS3O5X=600OB6trbz2yJ2w@mail.gmail.com>
Date: Tue, 8 Oct 2024 17:05:52 +0200
From: Ulf Hansson <ulf.hansson@...aro.org>
To: Georg Gottleuber <ggo@...edocomputers.com>
Cc: victor.shih@...esyslogic.com.tw, Lucas.Lai@...esyslogic.com.tw, 
	Greg.tu@...esyslogic.com.tw, HL.Liu@...esyslogic.com.tw, 
	adrian.hunter@...el.com, linux-mmc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Ben Chuang <ben.chuang@...esyslogic.com.tw>
Subject: Re: sdhci_pci module is blocking low power s0ix sleep with GL9767

+ Ben

On Thu, 26 Sept 2024 at 17:31, Georg Gottleuber <ggo@...edocomputers.com> wrote:
>
> Hello,
>
> I have a problem with s0ix sleep on a laptop with GL9767 SD card reader.
>
> The device is a TUXEDO InfinityBook Pro 14 Gen9 Intel laptop and
> consumes 6 watts in s2idle (not reaching s0ix). If I blacklist sdhci_pci
> in /etc/modprobe.d/blacklist.conf then the device sleeps with 1.2 watts
> (this is not super good, but OK). Unfortunately unloading and reloading
> does not work either. Once the module has been loaded, the high power
> consumption remains, even after a rmmod.
>
> I tested this behavior with linux mainline 6.11,
> 6.11.0-rc7-next-20240909. Kernel mmc/next does not work either.
>
> In an AMD device (InfinityBook Pro 14 Gen9 AMD), however, the same card
> reader sleeps without any problems.
>
> Link https://bugzilla.kernel.org/show_bug.cgi?id=219284
>
> Any ideas?

I am sorry, but I don't have any useful suggestions at this point. We
need some help from the guys from Genesys Logic.

>
> Kind regards
> Georg Gottleuber

Kind regards
Uffe