linux-kernel - Re: [PATCH] input: edt-ft5x06: increase allowed data range for threshold parameter

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Message-ID: <20170508161146.vkmaohiesjd6e6vq@rob-hp-laptop>
Date:   Mon, 8 May 2017 11:11:46 -0500
From:   Rob Herring <robh@...nel.org>
To:     Martin Kepplinger <martin.kepplinger@...zinger.com>
Cc:     dmitry.torokhov@...il.com, simon.budig@...nelconcepts.de,
        daniel.wagener@...nelconcepts.de, mchehab@...nel.org,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        Schoefegger Stefan <stefan.schoefegger@...zinger.com>,
        Manfred Schlaegl <manfred.schlaegl@...zinger.com>
Subject: Re: [PATCH] input: edt-ft5x06: increase allowed data range for
 threshold parameter

On Tue, May 02, 2017 at 05:00:59PM +0200, Martin Kepplinger wrote:
> The datasheet and application note does not mention an allowed range for
> the M09_REGISTER_THRESHOLD parameter. One of our customers needs to set
> lower values than 20 and they seem to work just fine on EDT EP0xx0M09 with
> T5x06 touch.
> 
> So, lacking a known lower limit, we increase the range for thresholds,
> and set the lower limit to 0. The documentation is updated accordingly.
> 
> Signed-off-by: Schoefegger Stefan <stefan.schoefegger@...zinger.com>
> Signed-off-by: Manfred Schlaegl <manfred.schlaegl@...zinger.com>
> Signed-off-by: Martin Kepplinger <martin.kepplinger@...zinger.com>
> ---
>  Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt | 2 +-
>  Documentation/input/devices/edt-ft5x06.rst                         | 2 +-
>  drivers/input/touchscreen/edt-ft5x06.c                             | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)

Acked-by: Rob Herring <robh@...nel.org>