From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Sun, 8 Sep 2013 15:20:00 +0000 (+0100)
Subject: iio: Add tsl4531 ambient light sensor driver
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~62^2~694^2~69
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aab9ba7eb2633927d0010f00c3bc7960efcd3c23;p=pandora-kernel.git

iio: Add tsl4531 ambient light sensor driver

driver for the TSL4531 family of 16-bit I2C ambient light
sensors; information is here:
http://www.ams.com/eng/Products/Light-Sensors/Ambient-Light-Sensor-ALS/TSL45315

the chip offers simple lux output

v3 (thanks Lars-Peter Clausen):
* add mutex to when updating integration time
* fix chip ID checking
* code cleanups
v2:
* rename to tsl4351
* use INT_TIME

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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