From 28760c195e22856aedbacad5eb7b46ac1d76bb90 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Sat, 23 May 2015 18:15:11 +0200
Subject: [PATCH] ALSA: ppc: keywest: check if DEQ was already instantiated

Due to changes in i2c-powermac, for some Macs the DEQ is instantiated
now in i2c-powermac while some need the instantiation here in the
keywest sound driver. The proper fix is to convert this driver to AOA.
Until then support both ways of instantiation. Before this patch, some
Macs lost sound because the sound driver failed when instantiating the
DEQ for the second time.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Tested-by: Dan DeVoto <dand1972@yahoo.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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