Kalle Valo <kvalo@xxxxxxxxxx> writes: > Hi netdev maintainers, > > Baochen Qiang <quic_bqiang@xxxxxxxxxxx> writes: > >> MHI devices may not be destroyed during suspend/hibernation, so need >> to unprepare/prepare MHI channels throughout the transition, this is >> done by adding suspend/resume callbacks. >> >> The suspend callback is called in the late suspend stage, this means >> MHI channels are still alive at suspend stage, and that makes it >> possible for an MHI controller driver to communicate with others over >> those channels at suspend stage. While the resume callback is called >> in the early resume stage, for a similar reason. >> >> Also note that we won't do unprepare/prepare when MHI device is in >> suspend state because it's pointless if MHI is only meant to go through >> a suspend/resume transition, instead of a complete power cycle. >> >> Tested-on: WCN6855 hw2.0 PCI >> WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30 >> >> Signed-off-by: Baochen Qiang <quic_bqiang@xxxxxxxxxxx> >> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> >> Reviewed-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx> > > Could I take this patch via ath.git tree? Full patch here (same patch > but links to both patchwork projects): > > https://patchwork.kernel.org/project/linux-wireless/patch/20240305021320.3367-3-quic_bqiang@xxxxxxxxxxx/ > > https://patchwork.kernel.org/project/netdevbpf/patch/20240305021320.3367-3-quic_bqiang@xxxxxxxxxxx/ > > I ask because we need it to get hibernation working on ath11k (and ath12k): > > https://patchwork.kernel.org/project/linux-wireless/patch/20240305021320.3367-4-quic_bqiang@xxxxxxxxxxx/ No reply from netdev maintainers but as the patch is marked as 'Not Applicable' in netdev patchwork I guess they would not have major objection to take this to ath.git. It should go to net-next in the next wireless-next pull request anyway. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
