Richard Weinberger <richard@xxxxxx> writes: > ----- Ursprüngliche Mail ----- >> Von: "kvalo" <kvalo@xxxxxxxxxx> >> IIRC the issue is that ath11k expects the firmware to be running during >> suspend. And this was because shutting down the firmware for suspend >> caused problems in the MHI subsystem during resume. To fix this I >> suspect we need changes both in ath11k and in the MHI subsystem, so not >> easy. > > Hm. So, currently the device is put into WoW mode instead of powering > it off because of issues in the MHI subsystem. At least this patch > series indicates so: > https://lore.kernel.org/all/1607708150-21066-1-git-send-email-kvalo@xxxxxxxxxxxxxx/ > > On the other hand, my device seems to have trouble with that workaround. > Maybe powering it off completely helps. > > Do you have a pointer to said MHI issues? No pointers but IIRC it was something related to MHI creating a struct device in an invalid context and MHI fails because of that. Maybe it was so that when mac80211 calls ath11k_mac_op_start() during resume, ath11k called MHI to enable power on the device and MHI tries to create a struct device at the same time, or something like that. This was a long time ago so not sure. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
