From: Adrian Knoth <a...@drcomp.erfurt.thur.de>
3.4.108-rc1 review patch. If anyone has any objections, please let me know.
------------------
commit f0153c3d948c1764f6c920a0675d86fc1d75813e upstream.
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 <a...@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <ti...@suse.de>
Signed-off-by: Zefan Li <lize...@huawei.com>
---
sound/pci/rme9652/hdspm.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index bc030a2..0627ffe 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6042,6 +6042,12 @@ static int snd_hdspm_capture_open(struct
snd_pcm_substream *substream)
snd_pcm_hw_constraint_minmax(runtime,
SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
64, 8192);
+ snd_pcm_hw_constraint_minmax(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS,
+ 2, 2);
+ snd_pcm_hw_constraint_minmax(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS,
+ 2, 2);
break;
}
--
1.9.1
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