From 2c2416c83e7345fc51af49132c40ec7d337d4132 Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Sat, 29 Nov 2014 00:59:18 +0900
Subject: [PATCH] ALSA: dice: Add new functions for constraints of PCM
 parameters

This commit adds a new functions and some arrangement for PCM restriction.
This arrangement is due to the number of channels which each Dice device has.

I note that minimum number for period becomes 2, instead of 1 because its PCM
functionality has SNDRV_PCM_INFO_BATCH, this means that the driver uses double
(or more) buffering so the minimum number for period should be 2.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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