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[ALSA] add number of periods constraint to snd-aoa 

The aoa driver is not specifying constraints on number of periods, and, it
seems, it might end with a non-integer number, which it cannot deal with.
Fix by adding a proper constraint.

Signed-off-by: Heikki Lindholm  <holindho@cs.helsinki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Heikki Lindholm 2007-11-23 15:37:48 +01:00 committed by Jaroslav Kysela
parent 7c7fc2d44b
commit df86d1149f
1 changed files with 6 additions and 0 deletions
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6
sound/aoa/soundbus/i2sbus/i2sbus-pcm.c
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@ -194,6 +194,12 @@ static int i2sbus_pcm_open(struct i2sbus_dev *i2sdev, int in)
hw->period_bytes_max = 16384;
hw->periods_min = 3;
hw->periods_max = MAX_DBDMA_COMMANDS;
err = snd_pcm_hw_constraint_integer(pi->substream->runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
if (err < 0) {
result = err;
goto out_unlock;
}
list_for_each_entry(cii, &sdev->codec_list, list) {
if (cii->codec->open) {
err = cii->codec->open(cii, pi->substream);