From: Cliff Cai <cliff.cai@analog.com>
Date: Sat, 27 Sep 2008 14:32:20 +0000 (+0800)
Subject: ALSA: ASoC Blackfin: fix bug - Audio Latency on AD1981 with MMAP enabled
X-Git-Tag: v2.6.28-rc1~102^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b58a82121320f96513d88032dc3495a9c6f450b;p=pandora-kernel.git

ALSA: ASoC Blackfin: fix bug - Audio Latency on AD1981 with MMAP enabled

With MMAP enabled (DMA mode) on the AD1981, there is +/- 250ms of delay between
writing data to alsa and audio starts coming out of the AD1981.

Copy more data to local buffer before starting DMA

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

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