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authorJussi Laako <jussi@sonarnerd.net>2016-11-28 12:27:45 +0300
committerTakashi Iwai <tiwai@suse.de>2016-12-13 00:46:43 +0300
commit995c6a7fd9b9212abdf01160f6ce3193176be503 (patch)
treef0e52df281844e8349464e89da65630012b8a7e8 /sound/usb/hiface
parent012007309133d21a5a7eae3f552c03ac061a2b51 (diff)
downloadlinux-995c6a7fd9b9212abdf01160f6ce3193176be503.tar.xz
ALSA: hiface: Fix M2Tech hiFace driver sampling rate change
Sampling rate changes after first set one are not reflected to the hardware, while driver and ALSA think the rate has been changed. Fix the problem by properly stopping the interface at the beginning of prepare call, allowing new rate to be set to the hardware. This keeps the hardware in sync with the driver. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/hiface')
-rw-r--r--sound/usb/hiface/pcm.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/usb/hiface/pcm.c b/sound/usb/hiface/pcm.c
index 2c44139b4041..33db205dd12b 100644
--- a/sound/usb/hiface/pcm.c
+++ b/sound/usb/hiface/pcm.c
@@ -445,6 +445,8 @@ static int hiface_pcm_prepare(struct snd_pcm_substream *alsa_sub)
mutex_lock(&rt->stream_mutex);
+ hiface_pcm_stream_stop(rt);
+
sub->dma_off = 0;
sub->period_off = 0;