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

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Date:   Wed, 24 Aug 2016 12:09:42 +0530
From:   Vignesh R <vigneshr@...com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        "Andrew F. Davis" <afd@...com>
CC:     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 Wednesday 24 August 2016 01:33 AM, Dmitry Torokhov wrote:
> 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.
> 

Sorry.. Will fix this in v3.


-- 
Regards
Vignesh