5a99d805fa3cbf0f5174bcfc685bb
author David Brownell <david-b@pacbell.net> 1207111381 -0400
committer Dmitry Torokhov <dmitry.torokhov@gmail.com> 1207111381 -0400

Input: ads7846 - simplify support of external vREF (and ads7843)

This updates the ads7846 driver to handle external vREF (required
on boards using ads7843 chips) without module parameters, and also
removes a needless variable with its associated bogus gcc warning.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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