From 27c647bff20c6883dd0b4e3fc24c3d414a9e192a Mon Sep 17 00:00:00 2001
From: Nicolin Chen <Guangyu.Chen@freescale.com>
Date: Wed, 30 Apr 2014 18:54:07 +0800
Subject: [PATCH] ASoC: fsl_spdif: Add sysclk df support to derive txclk from
 sysclk

The sysclk is one the clock sources that could be selected to derive
tx clock. But the route for sysclk is a bit different that it does
not only contain txclk df divider but also have an extra sysclk df.

So this patch mainly adds syclk df configuration support so as to
let the driver be able to get clock from sysclk.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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