From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 18 Jun 2013 20:25:15 +0000 (-0700)
Subject: staging: comedi: pcmuio: introduce pcmuio_read()
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~76^2~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89aaa92adffa5c57d9c2a545c7cb9809ddd3b615;p=pandora-kernel.git

staging: comedi: pcmuio: introduce pcmuio_read()

Introduce a helper function to handle reading a 24-bit value from the
three 8-bit registers associated with a "port" or "page".

Simplify the for() loop in pcmuio_handle_asic_interrupt() that finds
which channels have triggered the interrupt.

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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