2 files changed, 9 insertions, 0 deletions

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index b75db8e9cc0f..bc57501c584a 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -373,6 +373,11 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
                            (unsigned long)new_hw_ptr,
                            (unsigned long)runtime->hw_ptr_base);
         }
+
+        /* without period interrupts, there are no regular pointer updates */
+        if (runtime->no_period_wakeup)
+                goto no_delta_check;
+
         /* something must be really wrong */
         if (delta >= runtime->buffer_size + runtime->period_size) {
                 hw_ptr_error(substream,
@@ -442,6 +447,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
                              (long)old_hw_ptr);
         }
 
+ no_delta_check:
         if (runtime->status->hw_ptr == new_hw_ptr)
                 return 0;
 
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 8bc7cb3db330..f91a439f675c 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -423,6 +423,9 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
         runtime->info = params->info;
         runtime->rate_num = params->rate_num;
         runtime->rate_den = params->rate_den;
+        runtime->no_period_wakeup =
+                        (params->info & SNDRV_PCM_INFO_NO_PERIOD_WAKEUP) &&
+                        (params->flags & SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP);
 
         bits = snd_pcm_format_physical_width(runtime->format);
         runtime->sample_bits = bits;