linux-kernel - Re: [PATCH v2 1/2] input: misc: Add generic input driver to read encoded GPIO lines

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Message-ID: <20160823200335.GC6712@dtor-ws>
Date:   Tue, 23 Aug 2016 13:03:35 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     "Andrew F. Davis" <afd@...com>
Cc:     Vignesh R <vigneshr@...com>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        Daniel Hung-yu Wu <hywu@...gle.com>,
        Grant Grundler <grundler@...omium.org>,
        S Twiss <stwiss.opensource@...semi.com>,
        Moritz Fischer <moritz.fischer@...us.com>,
        Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>,
        John Stultz <john.stultz@...aro.org>,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 1/2] input: misc: Add generic input driver to read
 encoded GPIO lines

On Tue, Aug 23, 2016 at 10:27:59AM -0500, Andrew F. Davis wrote:
> On 08/23/2016 01:16 AM, Vignesh R wrote:
> > Add a driver to read group of GPIO lines and provide its status as a
> > numerical value as input event to the system. This will help in
> > intefacing devices, that can be connected over GPIOs, that provide input
> > to the system by driving GPIO lines connected to them like a rotary dial
> > or a switch.
> > 
> > For example, a rotary switch can be connected to four GPIO lines. The
> > status of the GPIO lines reflect the actual position of the rotary
> > switch dial. For example, if dial points to 9, then the four GPIO lines
> > connected to the switch will read HLLH(0b'1001 = 9). This value
> > can be reported as an ABS_* event to the input subsystem.
> > 
> > Signed-off-by: Vignesh R <vigneshr@...com>
> > Acked-by: Rob Herring <robh@...nel.org>
> > ---
> > 
> > v2: Use decoder,max-value instead of gpio-decoder,max-value.

That's not what Rob asked for. "decoder-max-value", not "decoder" vendor
prefix.

Thanks.

-- 
Dmitry