From: Robert Lippert <roblip@gmail.com>
Date: Mon, 27 Nov 2017 23:51:55 +0000 (-0800)
Subject: hwmon: (pmbus) Use 64bit math for DIRECT format values
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c10080108b7767d55465c7559d4f1d278ffa6f22;p=pandora-kernel.git

hwmon: (pmbus) Use 64bit math for DIRECT format values

commit bd467e4eababe4c04272c1e646f066db02734c79 upstream.

Power values in the 100s of watt range can easily blow past
32bit math limits when processing everything in microwatts.

Use 64bit math instead to avoid these issues on common 32bit ARM
BMC platforms.

Fixes: 442aba78728e ("hwmon: PMBus device driver")
Signed-off-by: Robert Lippert <rlippert@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
[bwh: Backported to 3.2: use integer literals instead of S16_{MIN,MAX}]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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