From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 9 Dec 2013 22:30:59 +0000 (-0700)
Subject: staging: comedi: pcmmio: introduce pcmmio_dio_write()
X-Git-Tag: v3.14-rc1~150^2~319
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4edac4a4da158869bb41392939f3933bf8f8d46d;p=pandora-kernel.git

staging: comedi: pcmmio: introduce pcmmio_dio_write()

The paged registers in the asic need to be spinlock protected to
ensure that the page is not changed while writing to the registers.

Introduce a helper function to make sure the spinlock is used.

Use the new helper in pcmmio_reset(). This is one of the places where
the spinlock is not used.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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