From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sat, 19 May 2007 17:07:16 +0000 (-0300)
Subject: V4L/DVB (5675): Move big PIO accesses from the interrupt handler to a workhandler
X-Git-Tag: v2.6.22-rc5~53^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc02d50a6d71cba2b2edb78377af5a5965879a49;p=pandora-kernel.git

V4L/DVB (5675): Move big PIO accesses from the interrupt handler to a workhandler

Sliced VBI transfers use PIO instead of DMA. This was done inside the
interrupt handler, but since PIO accesses are very slow this meant that
a lot of time was spent inside the interrupt handler. All PIO copies are
now moved to a workqueue. This should fix various issues with missing time
ticks and remote key hits.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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