diff --git a/[refs] b/[refs]
index 7f0a0e76ffe0..78b6dc1de335 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d3091fad4a4902185c3ce0b77a847ecafcb3f006
+refs/heads/master: b942cf815b5775288550f99f3790e29815bb70cb
diff --git a/trunk/sound/pci/es1968.c b/trunk/sound/pci/es1968.c
index dc84c189b05f..2faf009076bb 100644
--- a/trunk/sound/pci/es1968.c
+++ b/trunk/sound/pci/es1968.c
@@ -1554,10 +1554,7 @@ static int snd_es1968_playback_open(struct snd_pcm_substream *substream)
 	runtime->hw = snd_es1968_playback;
 	runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max =
 		calc_available_memory_size(chip);
-#if 0
-	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
-				   1024);
-#endif
+
 	spin_lock_irq(&chip->substream_lock);
 	list_add(&es->list, &chip->substream_list);
 	spin_unlock_irq(&chip->substream_lock);
@@ -1613,10 +1610,8 @@ static int snd_es1968_capture_open(struct snd_pcm_substream *substream)
 	runtime->hw = snd_es1968_capture;
 	runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max =
 		calc_available_memory_size(chip) - 1024; /* keep MIXBUF size */
-#if 0
-	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
-				   1024);
-#endif
+	snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
+
 	spin_lock_irq(&chip->substream_lock);
 	list_add(&es->list, &chip->substream_list);
 	spin_unlock_irq(&chip->substream_lock);