Input: ads7846 - make sure we do not change platform data
authorDmitry Torokhov <dmitry.torokhov@gmail.com>
Fri, 28 Jun 2013 06:29:25 +0000 (23:29 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Wed, 3 Jul 2013 03:40:47 +0000 (20:40 -0700)
Let's declare platform data a const pointer so that we don't accitentally
change it. Also fetch it with dev_get_platdata().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

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