[ALSA] pcxhr - Fix the sample rate changes

Modules: Digigram PCXHR driver

Fix the hardware set up when the sample rate is changed multiple times.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 3 deletions

diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index b8c0853a8278..57fe9538f5a4 100644
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -744,13 +744,14 @@ static int pcxhr_prepare(struct snd_pcm_substream *subs)
                 /* only the first stream can choose the sample rate */
                 /* the further opened streams will be limited to its frequency (see open) */
                 /* set the clock only once (first stream) */
-                if (mgr->sample_rate == 0) {
+                if (mgr->sample_rate != subs->runtime->rate) {
                         err = pcxhr_set_clock(mgr, subs->runtime->rate);
                         if (err)
                                 break;
+                        if (mgr->sample_rate == 0)
+                                /* start the DSP-timer */
+                                err = pcxhr_hardware_timer(mgr, 1);
                         mgr->sample_rate = subs->runtime->rate;
-
-                        err = pcxhr_hardware_timer(mgr, 1);     /* start the DSP-timer */
                 }
         } while(0);     /* do only once (so we can use break instead of goto) */