Regression since 6.1.46 (commit 8ee39ec): rtsx_pci from drivers/misc/cardreader breaks NVME power state, preventing system boot

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Hi kernel maintainers!

My computer doesn't boot with kernels newer than 6.1.45.

Here's what happens:
- system boots in initramfs
- detects my encrypted ZFS pool and asks for password
- mount system, pivots to it, starts real init
- before any daemon had time to start, the system hangs and the kernel writes on the console "nvme 0000:04:00.0: Unable to change power state from D3cold to D0, device inaccessible" - if I reboot directly without powering off (using magic sysrq or panic=10), even the UEFI complains about not finding any storage to boot from.
- after a real power off, I can boot using a kernel <= 6.1.45.

The bug has been discussed here: https://bugzilla.kernel.org/show_bug.cgi?id=217705

My laptop is a Dell XPS 15 9560 (Intel 7700hq).

I bisected between 6.1.45 and 6.1.46 and found this commit

commit 8ee39ec479147e29af704639f8e55fce246ed2d9
Author: Ricky WU <ricky_wu@xxxxxxxxxxx>
Date:   Tue Jul 25 09:10:54 2023 +0000

   misc: rtsx: judge ASPM Mode to set PETXCFG Reg

   commit 101bd907b4244a726980ee67f95ed9cafab6ff7a upstream.

   ASPM Mode is ASPM_MODE_CFG need to judge the value of clkreq_0
   to set HIGH or LOW, if the ASPM Mode is ASPM_MODE_REG
   always set to HIGH during the initialization.

   Cc: stable@xxxxxxxxxxxxxxx
   Signed-off-by: Ricky Wu <ricky_wu@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/52906c6836374c8cb068225954c5543a@xxxxxxxxxxx
   Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/misc/cardreader/rts5227.c  |  2 +-
drivers/misc/cardreader/rts5228.c  | 18 ------------------
drivers/misc/cardreader/rts5249.c  |  3 +--
drivers/misc/cardreader/rts5260.c  | 18 ------------------
drivers/misc/cardreader/rts5261.c  | 18 ------------------
drivers/misc/cardreader/rtsx_pcr.c |  5 ++++-
6 files changed, 6 insertions(+), 58 deletions(-)

If I build 6.1.51 with this commit reverted, my laptop works again, confirming that this commit is to blame.

Also, blacklisting `rtsx_pci_sdmmc` and `rtsx_pci`, while preventing to use the sd card reading, allows to boot the system.

I can't try 6.4 or 6.5 because my system is dependent on ZFS..

Have a nice day,
Paul Grandperrin





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