tree 6e2662919efafe40e63eea5de5029c417cfc7e5c
parent 0ed2c722c650513ba4bce868c7a052e576c060e2
author Lyonel Vincent <lyonel@ezix.org> 1251622460 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1251870360 +1000

powerpc/powermac: Thermal control turns system off too eagerly

On certain PowerMacs, a module (therm_windtunnel) controls various
thermal settings (it can report CPU/case temperature, change speed
of internal fans, etc.)

By default, the hardware thermal control has a temperature limit to
protect the computer from damages (the default limit seems to be 80°C)
but therm_windtunnel.c reduces it to an anormaly low value (65°C),
which means that he computer will shut down randomly when hit by direct
sun light or during summer (summer in France can be quite hot), actually
possibly losing data instead of protecting it.

The overheat limit in therm_windtunnel.c:253-254 should be set to 75°C
and 70°C instead of 65°C and 60°C respectively.

From: Lyonel Vincent <lyonel@ezix.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>