From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 9 Jul 2012 09:00:00 +0000 (+0100)
Subject: iio: Introduce iio_validate_scan_mask_onehot
X-Git-Tag: v3.6-rc1~100^2~297^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81636632057cc1bece2531220dd5803036f95ea9;p=pandora-kernel.git

iio: Introduce iio_validate_scan_mask_onehot

Add a helper function for validating a scan mask for devices where exactly one
channel must be selected during sampling. This is a common case among devices
which have scan mask restrictions so it makes sense to provide this function in
the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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