linux-kernel - Re: [PATCH v6 3/3] iio: proximity: Add a ChromeOS EC MKBP proximity driver

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Date:   Sun, 21 Feb 2021 15:53:14 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Gwendal Grignou <gwendal@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>
Subject: Re: [PATCH v6 3/3] iio: proximity: Add a ChromeOS EC MKBP proximity
 driver

On Sun, 14 Feb 2021 12:39:58 -0800
Stephen Boyd <swboyd@...omium.org> wrote:

> Quoting Jonathan Cameron (2021-02-14 04:48:09)
> > On Wed, 10 Feb 2021 18:46:01 -0800
> > Stephen Boyd <swboyd@...omium.org> wrote:
> >   
> > > Add support for a ChromeOS EC proximity driver that exposes a "front"
> > > proximity sensor via the IIO subsystem. The EC decides when front
> > > proximity is near and sets an MKBP switch 'EC_MKBP_FRONT_PROXIMITY' to
> > > notify the kernel of proximity. Similarly, when proximity detects
> > > something far away it sets the switch bit to 0. For now this driver
> > > exposes a single sensor, but it could be expanded in the future via more
> > > MKBP bits if desired.
> > > 
> > > Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
> > > Cc: Benson Leung <bleung@...omium.org>
> > > Cc: Guenter Roeck <groeck@...omium.org>
> > > Cc: Douglas Anderson <dianders@...omium.org>
> > > Cc: Gwendal Grignou <gwendal@...omium.org>
> > > Reviewed-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> > > Signed-off-by: Stephen Boyd <swboyd@...omium.org>  
> > 
> > I'm fine with this, but want to leave a little time for others to take
> > one last look.  We've missed the coming merge window now anyway.
> > 
> > If I seem to have forgotten this in a couple of weeks, feel free to
> > give me a bump.
> >   
> 
> Ok no problem. Gwendal had some comments on v5 that may be applicable
> here too but I think they mostly mean that the resume handler may not be
> needed if cros ec is fixed. Having the resume handler shouldn't hurt
> though unless I missed something. Gwendal?

@Gwendal, could you take a quick glance at this, or alternatively let
us know if you need more time to get to it.

Thanks,

Jonathan