Re: [PATCH v2 3/3] brcmfmac: sdio: Disable auto-tuning around commands expected to fail

From: Arend Van Spriel
Date: Fri Jun 07 2019 - 15:01:08 EST

On June 7, 2019 8:06:30 PM Doug Anderson <dianders@xxxxxxxxxxxx> wrote:


On Fri, Jun 7, 2019 at 6:32 AM Arend Van Spriel
<arend.vanspriel@xxxxxxxxxxxx> wrote:

Right. I know it supports initial tuning, but I'm not sure about subsequent
retuning initiated by the host controller.

My evidence says that it supports subsequent tuning. In fact, without
this series my logs would be filled with:

dwmmc_rockchip ff0d0000.dwmmc: Successfully tuned phase to XYZ

...where the phase varied by a few degrees each time. AKA: it was
retuning over and over again and getting sane results which implies
that the tuning was working just fine.

Ok. Thanks for confirming this.