linux-kernel - Re: [PATCH 4/4] Revert "platform/chrome: cros_ec

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Message-ID: <CAD=FV=Xm-2oxit7doVAYJr28c-xHqUdt9PQC=WYpYfsAyUxuaw@mail.gmail.com>
Date:   Mon, 13 May 2019 09:03:28 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Brian Norris <briannorris@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/4] Revert "platform/chrome: cros_ec_spi: Transfer
 messages at high priority"

Hi,

On Mon, May 13, 2019 at 9:02 AM Mark Brown <broonie@...nel.org> wrote:
>
> On Mon, May 13, 2019 at 08:57:12AM -0700, Doug Anderson wrote:
> > On Sun, May 12, 2019 at 10:05 AM Mark Brown <broonie@...nel.org> wrote:
>
> > > It isn't clear to me that it's a bad thing to have this even with the
> > > SPI thread at realime priority.
>
> > The code that's there right now isn't enough.  As per the description
> > in the original patch, it didn't solve all problems but just made
> > things an order of magnitude better.  So if I don't do this revert I
>
> I'm not saying the other changes aren't helping, I'm saying that it's
> not clear that this revert is improving things.

If I add a call to force the pumping to happen on the SPI thread then
the commit I'm reverting here is useless though, isn't it?

-Doug