Hi, On Wed, 12 Oct 2022, Kai Vehmanen wrote: > On Wed, 12 Oct 2022, Ville Syrjala wrote: > > > On HSW/BDW the hardware ELD buffer does not work if the controller > > is suspended. I'm not 100% which thing in there is needed to make it > > work (at least just forcing the controller into D0 with setpci is > > how does the error show up? I'm puzzled how this could have gone > unreported for so long. I know many distros have had runtime PM disabled > for the HDA controller driver, so that could perhaps explain some of this, > but still seems a bit amazing. > > We started SOF testing with upstream around GLK, so we never covered > HSW/BDW, but surely in SOF we always have runtime suspend by default > enabled on the audio side. > > I'll need some more time for review. Will follow up later. adding Cezary to the mail thread as well (I forwarded you some context separately. Br, Kai
