linux-kernel - Re: [PATCH v1 1/6] mfd: Add driver for Embedded Controller found on Acer Iconia Tab A500

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Message-ID: <20200824104336.GK3248864@dell>
Date:   Mon, 24 Aug 2020 11:43:36 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Lubomir Rintel <lkundrak@...sk>, Rob Herring <robh+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Pavel Machek <pavel@....cz>, Dan Murphy <dmurphy@...com>,
        Sebastian Reichel <sre@...nel.org>, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-leds@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/6] mfd: Add driver for Embedded Controller found on
 Acer Iconia Tab A500

On Mon, 24 Aug 2020, Dmitry Osipenko wrote:

> 24.08.2020 10:33, Lee Jones пишет:
> >> ...
> >>>> +static struct a500_ec *a500_ec_scratch;
> >>>
> >>> If this is only used for power_off, please rename it. I've been told to
> >>> do so in my driver: https://lore.kernel.org/lkml/20200519104933.GX271301@dell/
> >>
> >> I don't mind to rename the variable, but not sure whether it will be a
> >> worthwhile change since _scratch is also a common naming scheme among
> >> MFD drivers. Please see max77620_scratch for example, which I added
> >> about a year ago.
> > 
> > If something is used once, it does not make it 'common'.
> > 
> > Not sure how this slipped my notice before, but I don't like it.
> > 
> > Ensure any global struct used for power_off only includes items
> > required for this purpose.  It's unfortunate this API requires a
> > global variable at all.
> > 
> 
> Okay! I'll change it in the v2, thanks!
> 
> Thierry Reding was working on the shutdown API which should replace the
> global variables, unfortunately he doesn't have enough time to finish
> that work yet.

That would be really good. :)

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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