4 files changed, 23 insertions, 7 deletions

diff --git a/sound/firewire/dice/dice-midi.c b/sound/firewire/dice/dice-midi.c
index 69c3c06bd7aa..4c2998034313 100644
--- a/sound/firewire/dice/dice-midi.c
+++ b/sound/firewire/dice/dice-midi.c
@@ -17,7 +17,7 @@ static int midi_open(struct snd_rawmidi_substream *substream)
 
 	mutex_lock(&dice->mutex);
 
-	err = snd_dice_stream_reserve_duplex(dice, 0, 0);
+	err = snd_dice_stream_reserve_duplex(dice, 0, 0, 0);
 	if (err >= 0) {
 		++dice->substreams_counter;
 		err = snd_dice_stream_start_duplex(dice);
diff --git a/sound/firewire/dice/dice-pcm.c b/sound/firewire/dice/dice-pcm.c
index 813c9ffbeced..7c0c34c5bd47 100644
--- a/sound/firewire/dice/dice-pcm.c
+++ b/sound/firewire/dice/dice-pcm.c
@@ -204,6 +204,7 @@ static int pcm_open(struct snd_pcm_substream *substream)
 	if (!internal ||
 	    (dice->substreams_counter > 0 && d->events_per_period > 0)) {
 		unsigned int frames_per_period = d->events_per_period;
+		unsigned int frames_per_buffer = d->events_per_buffer;
 		unsigned int rate;
 
 		err = snd_dice_transaction_get_rate(dice, &rate);
@@ -217,8 +218,10 @@ static int pcm_open(struct snd_pcm_substream *substream)
 
 		if (frames_per_period > 0) {
 			// For double_pcm_frame quirk.
-			if (rate > 96000)
+			if (rate > 96000) {
 				frames_per_period *= 2;
+				frames_per_buffer *= 2;
+			}
 
 			err = snd_pcm_hw_constraint_minmax(substream->runtime,
 					SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
@@ -227,6 +230,14 @@ static int pcm_open(struct snd_pcm_substream *substream)
 				mutex_unlock(&dice->mutex);
 				goto err_locked;
 			}
+
+			err = snd_pcm_hw_constraint_minmax(substream->runtime,
+					SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+					frames_per_buffer, frames_per_buffer);
+			if (err < 0) {
+				mutex_unlock(&dice->mutex);
+				goto err_locked;
+			}
 		}
 	}
 
@@ -263,13 +274,16 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
 		unsigned int events_per_period = params_period_size(hw_params);
+		unsigned int events_per_buffer = params_buffer_size(hw_params);
 
 		mutex_lock(&dice->mutex);
 		// For double_pcm_frame quirk.
-		if (rate > 96000)
+		if (rate > 96000) {
 			events_per_period /= 2;
+			events_per_buffer /= 2;
+		}
 		err = snd_dice_stream_reserve_duplex(dice, rate,
-						     events_per_period);
+					events_per_period, events_per_buffer);
 		if (err >= 0)
 			++dice->substreams_counter;
 		mutex_unlock(&dice->mutex);
diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c
index b4ef08bd7e8f..0cff346e8052 100644
--- a/sound/firewire/dice/dice-stream.c
+++ b/sound/firewire/dice/dice-stream.c
@@ -279,7 +279,8 @@ static void finish_session(struct snd_dice *dice, struct reg_params *tx_params,
 }
 
 int snd_dice_stream_reserve_duplex(struct snd_dice *dice, unsigned int rate,
-				   unsigned int events_per_period)
+				   unsigned int events_per_period,
+				   unsigned int events_per_buffer)
 {
 	unsigned int curr_rate;
 	int err;
@@ -327,7 +328,7 @@ int snd_dice_stream_reserve_duplex(struct snd_dice *dice, unsigned int rate,
 			goto error;
 
 		err = amdtp_domain_set_events_per_period(&dice->domain,
-							 events_per_period, 0);
+					events_per_period, events_per_buffer);
 		if (err < 0)
 			goto error;
 	}
diff --git a/sound/firewire/dice/dice.h b/sound/firewire/dice/dice.h
index 1f9e3502974e..16366773e22e 100644
--- a/sound/firewire/dice/dice.h
+++ b/sound/firewire/dice/dice.h
@@ -211,7 +211,8 @@ void snd_dice_stream_stop_duplex(struct snd_dice *dice);
 int snd_dice_stream_init_duplex(struct snd_dice *dice);
 void snd_dice_stream_destroy_duplex(struct snd_dice *dice);
 int snd_dice_stream_reserve_duplex(struct snd_dice *dice, unsigned int rate,
-				   unsigned int events_per_period);
+				   unsigned int events_per_period,
+				   unsigned int events_per_buffer);
 void snd_dice_stream_update_duplex(struct snd_dice *dice);
 int snd_dice_stream_detect_current_formats(struct snd_dice *dice);