On Sat, May 18, 2019 at 03:09:44PM +0000, Avri Altman wrote: > > > > This series attempts to deal better with the expected transmission > > errors that we get when waking up the SDIO-based WiFi on > > rk3288-veyron-minnie, rk3288-veyron-speedy, and rk3288-veyron-mickey. > > > > Some details about those errors can be found in > > <https://crbug.com/960222>, but to summarize it here: if we try to > > send the wakeup command to the WiFi card at the same time it has > > decided to wake up itself then it will behave badly on the SDIO bus. > > This can cause timeouts or CRC errors. > Wake-up itself: as part of a WoWlan, or d0i3? Neither, IIUC. (It's definitely not WoWLAN, and D0i3 sounds like an Intel thing.) I believe it's a Broadcom-specific mode. See also Arend's response to this thread: http://lkml.kernel.org/linux-wireless/8c3fa57a-3843-947c-ec6b-a6144ccde1e9@xxxxxxxxxxxx > Looks like this calls for a wifi driver fix, and not WA in the mmc driver. Basically asked and answered in patch 2's thread: https://lkml.kernel.org/lkml/20190520085201.GA1021@kunai/
