Kalle Valo <kvalo@xxxxxxxxxx> wrote: > From: Kalle Valo <quic_kvalo@xxxxxxxxxxx> > > Currently ath11k breaks after hibernation, the reason being that ath11k expects > that the wireless device will have power during suspend and the firmware will > continue running. But of course during hibernation the power from the device is > cut off and firmware is not running when resuming, so ath11k will fail. > > (The reason why ath11k needs the firmware running is the interaction between > mac80211 and MHI stack, it's a long story and more info in the bugzilla report.) > > In SUSE kernels the watchdog timeout is reduced from the default 120 to 60 seconds: > > CONFIG_DPM_WATCHDOG_TIMEOUT=60 > > But as the ath11k MHI timeout is 90 seconds the kernel will crash before will > ath11k will recover in resume callback. To avoid the crash reduce the MHI > timeout to just 20 seconds. > > Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.9 > > Link: https://bugzilla.kernel.org/show_bug.cgi?id=214649 > Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> Patch applied to wireless.git, thanks. cf5fa3ca0552 wifi: ath11k: reduce the MHI timeout to 20s -- https://patchwork.kernel.org/project/linux-wireless/patch/20230329162038.8637-1-kvalo@xxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
