Hello,
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 <ricky_wu@xxxxxxxxxxx>
Date: Mon Sep 7 18:07:31 2020 +0800
misc: rtsx: Add power saving functions and fix driving parameter
v4:
split power down flow and power saving function to two patch
v5:
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 <ricky_wu@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200907100731.7722-1-ricky_wu@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
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 <https://bugzilla.kernel.org/show_bug.cgi?id=211809>.)
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,
Marius
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