From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 22 Aug 2011 16:45:42 +0000 (-0700)
Subject: Input: ad714x - read the interrupt status registers in a row
X-Git-Tag: v3.1-rc4~48^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9eff794b777ac9ca034129a1b637204000c8fb29;p=pandora-kernel.git

Input: ad714x - read the interrupt status registers in a row

The interrupt status registers should be read in row to avoid invalid data.

Alter "read" method for both bus options to allow reading several registers
in a row and make sure we read interrupt status registers properly.

Read sequence saves 50% of bus transactions compared to single register
reads. So use it also for the result registers, which are also located
in a row.

Also update copyright notice.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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