From adba657533bdd255f7b78bc8a324091f46b294cd Mon Sep 17 00:00:00 2001
From: Chris Lesiak <chris.lesiak@licor.com>
Date: Tue, 26 May 2015 15:40:44 -0500
Subject: [PATCH] hwmon: (ntc_thermistor) Ensure iio channel is of type
 IIO_VOLTAGE

When configured via device tree, the associated iio device needs to be
measuring voltage for the conversion to resistance to be correct.
Return -EINVAL if that is not the case.

Signed-off-by: Chris Lesiak <chris.lesiak@licor.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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