From: Matthew Garrett <mjg@redhat.com>
Date: Wed, 1 Feb 2012 15:26:54 +0000 (-0500)
Subject: ACPI: Evaluate thermal trip points before reading temperature
X-Git-Tag: v3.4-rc1~18^2~3^9~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9bcb8118965ab4631a65ee0726e6518f75cda6c5;p=pandora-kernel.git

ACPI: Evaluate thermal trip points before reading temperature

An HP laptop (Pavilion G4-1016tx) has the following code in _TMP:

       Store (\_SB.PCI0.LPCB.EC0.RTMP, Local0)
       If (LGreaterEqual (Local0, S4TP))
       {
           Store (One, HTS4)
       }

S4TP is initialised at 0 and not programmed further until either _HOT or
_CRT is called. If we evaluate _TMP before the trip points then HTS4 will
always be set, causing the firmware to generate a message on boot
complaining that the system shut down because of overheating. The simplest
solution is just to reverse the checking of trip points and _TMP in thermal
init.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---

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