From: Hakan Berg <hakan.berg@stericsson.com>
Date: Tue, 17 Jul 2012 12:17:16 +0000 (+0200)
Subject: ab8500-btemp: Filter btemp readings
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~31^2~85^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=908fe8d6a575e2bdf349ba8635b862eeb91f7ade;p=pandora-kernel.git

ab8500-btemp: Filter btemp readings

Battery tempreature readings sometimes fail and results in
a value far from recent values. This patch adds a software
filter that disposes such readings, by allowing direct
updates on temperature only if two samples result in the
same temperature. Else only allow 1 degree change from previous
reported value in the direction of the new measurement.

Signed-off-by: Hakan Berg <hakan.berg@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Martin SJOBLOM <martin.w.sjoblom@stericsson.com>
Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
---

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