Rakesh Pillai <pillair@xxxxxxxxxxxxxx> wrote: > As a part of device shutdown the smmu driver will be > stopped and henceforth any IOVA address translation > will not be done. The wlan driver, being one of the > smmu driver consumer, should stop all the dma related > activity as a part of shutdown, and thereby ensuring > that no dma activity is done once the smmu driver > shuts down. > > During the device shutdown, the smmu calls shutdown > for all its consumers in order to indicate them to > stop all their dma activities. > > Register the shutdown handler to stop the wlan > driver and avoid any dma operations. > > Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1 > > Signed-off-by: Rakesh Pillai <pillair@xxxxxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. caf275463d37 ath10k: Register shutdown handler -- https://patchwork.kernel.org/patch/11628291/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
