From mboxrd@z Thu Jan 1 00:00:00 1970 From: dmitry.torokhov@gmail.com (Dmitry Torokhov) Date: Mon, 16 Jun 2014 14:30:48 -0700 Subject: [PATCH 1/2] touchscreen: sun4i-ts: A10 (sun4i) has double the temperature precision In-Reply-To: <1402943069-19420-2-git-send-email-hdegoede@redhat.com> References: <1402943069-19420-1-git-send-email-hdegoede@redhat.com> <1402943069-19420-2-git-send-email-hdegoede@redhat.com> Message-ID: <20140616213048.GA422@core.coreip.homeip.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.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