From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dmitry Torokhov <dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 1/2] touchscreen: sun4i-ts: A10 (sun4i) has
 double the temperature precision
Date: Mon, 16 Jun 2014 14:30:48 -0700
Message-ID: <20140616213048.GA422@core.coreip.homeip.net>
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To: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>, Tong Zhang <lovewilliam-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, LM Sensors <lm-sensors-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org>, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
List-Id: linux-input@vger.kernel.org

Hi Hans,

On Mon, Jun 16, 2014 at 08:24:28PM +0200, Hans de Goede wrote:
> Testing has revealed that the temperature in the rtp controller of the A10
> (sun4i) SoC has a resolution of 50 milli degrees / step, where as the
> A13 (sun5i) and later models have 100 milli degrees / step.
> 
> Add a new sun5i-a13-ts compatible to differentiate the newer models and
> set the resolution based on the compatible string.
> 
> This fixes the temperature reported on the A10 being twice as high as expected.

Should we maybe add explicit temperature steps property so that we won;t
need to patch again if they decided to change resolution again?

Thanks.

-- 
Dmitry