From 4bef67e311d6f9908eeae054d5b8611138956abc Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Mon, 20 Apr 2015 18:47:44 -0300
Subject: [PATCH] [media] a8293: improve LNB register programming logic

On power-on LNB power supply voltage is disabled, due to that no
need to disable it during probe. Tone is supply is hard-coded as
external tone coming from the demodulator. Program both voltage
and tone on set_voltage(). Use register cache to prevent unneeded
programming.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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