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* Sudden poweroffs when idle on ThinkPad x290s since v5.10-rc1 (bisected to 7c33e3c4c79a)
@ 2021-03-25 19:33 Marius Bakke
  0 siblings, 0 replies; only message in thread
From: Marius Bakke @ 2021-03-25 19:33 UTC (permalink / raw)
  To: ricky_wu
  Cc: arnd, bhelgaas, gregkh, linux-kernel, linux-pci, puranjay12,
	rui_feng, ulf.hansson, vailbhavgupta40

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After updating to the 5.10 kernel, my laptop will spontaneously poweroff
when idle after some time (between 30 minutes and three days).

I have bisected it down to a rtsx driver update in 7c33e3c4c79a:

commit 7c33e3c4c79ac5def79e7c773e38a7113eb14204
Author: Ricky Wu <>
Date:   Mon Sep 7 18:07:31 2020 +0800

    misc: rtsx: Add power saving functions and fix driving parameter
    split power down flow and power saving function to two patch
    fix up modified change under the --- line
    Add rts522a L1 sub-state support
    Save more power on rts5227 rts5249 rts525a rts5260
    Fix rts5260 driving parameter
    Signed-off-by: Ricky Wu <>
    Signed-off-by: Greg Kroah-Hartman <>

 drivers/misc/cardreader/rts5227.c  | 112 +++++++++++++++++++++++++++-
 drivers/misc/cardreader/rts5249.c  | 145 ++++++++++++++++++++++++++++++++++++-
 drivers/misc/cardreader/rts5260.c  |  28 +++----
 drivers/misc/cardreader/rtsx_pcr.h |  17 +++++
 4 files changed, 283 insertions(+), 19 deletions(-)

(See also <>.)

I'm not sure whether this is a driver or hardware problem and am seeking
feedback on how to further debug the issue.

FWIW the problem does not seem to reproduce on an AMD ThinkPad T14 Gen 1
with the same RTS522A PCIe card reader (on stock Arch 5.10.16 kernel).

Thanks & happy hacking,

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2021-03-25 19:33 Sudden poweroffs when idle on ThinkPad x290s since v5.10-rc1 (bisected to 7c33e3c4c79a) Marius Bakke

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