The SD card reader in my Acer Aspire S5 doesn't work with 4.20-rc.
When it doesn't work, it doesn't generate any interrupts on device insertion
and removal and this seems to be reproducible 100% of the time.
Author: Patrick Talbert <firstname.lastname@example.org>
Date: Wed Sep 5 09:12:53 2018 +0200
PCI/ASPM: Do not initialize link state when aspm_disabled is set
makes the problem go away.
Created attachment 279695 [details]
dmesg log with pci=earlydump
Created attachment 279697 [details]
Created attachment 279699 [details]
Output of 'lspci -vv' from Aspire S5
Created attachment 281023 [details]
sample patch for RTS5209
This seems to possibly be an issue with the card reader or rtsx driver.
I take it if you boot with pcie_aspm=off the card reader ends up in the same bad state?
What about this silly quirk? Can you test if it works for you?