From: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Date: Tue, 10 Feb 2015 10:33:50 +0000 (+0100)
Subject: ALSA: hdspm - Constrain periods to 2 on older cards
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~19^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0153c3d948c1764f6c920a0675d86fc1d75813e;p=pandora-kernel.git

ALSA: hdspm - Constrain periods to 2 on older cards

RME RayDAT and AIO use a fixed buffer size of 16384 samples. With period
sizes of 32-4096, this translates to 4-512 periods.

The older RME cards have a variable buffer size but require exactly two
periods.

This patch enforces nperiods=2 on those cards.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Cc: <stable@vger.kernel.org> # 2.6.39+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

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