From 252e91ff1094eefacd25b401c3b77e549803cae6 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Fri, 13 Dec 2013 14:43:02 +0800
Subject: [PATCH] ASoC: sgtl5000: read chip revision for once

Store chip revision in struct sgtl5000_priv when sgtl5000_i2c_probe()
reads it out from register, so that we can use it in
sgtl5000_enable_regulators() with no need to read register again.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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