From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 17 Jul 2014 00:40:31 +0000 (-0700)
Subject: hwmon: (adt7470) Fix writes to temperature limit registers
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~270^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=de12d6f4b10b21854441f5242dcb29ea96181e58;p=pandora-kernel.git

hwmon: (adt7470) Fix writes to temperature limit registers

Temperature limit registers are signed. Limits therefore need
to be clamped to (-128, 127) degrees C and not to (0, 255)
degrees C.

Without this fix, writing a limit of 128 degrees C sets the
actual limit to -128 degrees C.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Reviewed-by: Axel Lin <axel.lin@ingics.com>
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