RE: rtsx_pci driver is blocking s2idle

[Ricky WU <ricky_wu@realtek.com>]

> -----Original Message-----
> From: Ulf Hansson <ulf.hansson@linaro.org>
> Sent: Wednesday, July 30, 2025 6:11 PM
> To: Laurent Bigonville via Bugspray Bot <bugbot@kernel.org>; Ricky WU
> <ricky_wu@realtek.com>
> Cc: linux-mmc@vger.kernel.org
> Subject: Re: rtsx_pci driver is blocking s2idle
> 
> 
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> 
> + Ricky
> 
> On Wed, 23 Jul 2025 at 15:09, Laurent Bigonville via Bugspray Bot
> <bugbot@kernel.org> wrote:
> >
> > Laurent Bigonville added an attachment on Kernel.org Bugzilla:
> >
> > Created attachment 308404
> > s0ix-selftest-tool -s output
> >
> > Hello,
> >
> > I've a Dell latitude 5530 that has no S3 suspend, it only has s2idle
> >
> > I initially opened bug #218500 regarding the lack of support for S3.
> > While trying to debug this, I start using s0ix-selftest-tool and I
> > realized that the driver for Realtek Semiconductor Co., Ltd. RTS525A
> > PCI Express Card Reader was blocking the suspend (rtsx_pci(_sdmmc) is
> > then not loaded)
> >
> > If I disable the SD card reader in the Bios, the script is more happy
> > (it also complains about the Raid/intel RST thing, but I guess that's
> > an other issue)
> >
> > Is there a bug in rtsx_pci(_sdmmc)?
> >

Hi Laurent,

Can you help to get PCI configuration space?
Typing cmd (B:D:F is our pci reader pci address):
sudo lspci -s B:D:F -xxxx 

We need to check the pci setting from BIOS on your NB

Thank you

> > File: 20250722-16-27-s0ix-output.log (text/plain)
> > Size: 1.85 KiB
> > Link: https://bugzilla.kernel.org/attachment.cgi?id=308404
> > ---
> > s0ix-selftest-tool -s output
> >
> > You can reply to this message to join the discussion.
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> > Deet-doot-dot, I am a bot.
> > Kernel.org Bugzilla (bugspray 0.1-dev)
> >
> 
> Thanks for reporting!
> 
> I have looped in Ricky to see if he may have some thoughts around this
> problem.
> 
> Kind regards
> Uffe