tree 8eea2c2db4541a05114dd9fb61e782a0e5d13458
parent b635acec48bcaa9183fcbf4e3955616b0d4119b5
author Jens Rottmann <JRottmann@LiPPERTEmbedded.de> 1217853616 +0200
committer Ingo Molnar <mingo@elte.hu> 1218813152 +0200

x86, geode-mfgpt: check IRQ before using MFGPT as clocksource

Adds a simple IRQ autodetection to the AMD Geode MFGPT driver, and more
importantly, adds some checks, if IRQs can actually be received on the
chosen line.  This fixes cases where MFGPT is selected as clocksource
though not producing any ticks, so the kernel simply starves during
boot.

Signed-off-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de>
Cc: Andres Salomon <dilinger@debian.org>
Cc: linux-geode@bombadil.infradead.org
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>