diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index b4fa1c775251..45f944d57982 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -539,6 +539,9 @@ void snd_hdac_stream_sync(struct hdac_stream *azx_dev, bool start,
 			  unsigned int streams);
 void snd_hdac_stream_timecounter_init(struct hdac_stream *azx_dev,
 				      unsigned int streams);
+int snd_hdac_get_stream_stripe_ctl(struct hdac_bus *bus,
+				struct snd_pcm_substream *substream);
+
 /*
  * macros for easy use
  */
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index ba73a33480b6..820694a2061e 100644
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -12,6 +12,40 @@
 #include <sound/hda_register.h>
 #include "trace.h"
 
+/**
+ * snd_hdac_get_stream_stripe_ctl - get stripe control value
+ * @bus: HD-audio core bus
+ * @substream: PCM substream
+ */
+int snd_hdac_get_stream_stripe_ctl(struct hdac_bus *bus,
+				   struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	unsigned int channels = runtime->channels,
+		     rate = runtime->rate,
+		     bits_per_sample = runtime->sample_bits,
+		     max_sdo_lines, value, sdo_line;
+
+	/* T_AZA_GCAP_NSDO is 1:2 bitfields in GCAP */
+	max_sdo_lines = snd_hdac_chip_readl(bus, GCAP) & AZX_GCAP_NSDO;
+
+	/* following is from HD audio spec */
+	for (sdo_line = max_sdo_lines; sdo_line > 0; sdo_line >>= 1) {
+		if (rate > 48000)
+			value = (channels * bits_per_sample *
+					(rate / 48000)) / sdo_line;
+		else
+			value = (channels * bits_per_sample) / sdo_line;
+
+		if (value >= 8)
+			break;
+	}
+
+	/* stripe value: 0 for 1SDO, 1 for 2SDO, 2 for 4SDO lines */
+	return sdo_line >> 1;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_get_stream_stripe_ctl);
+
 /**
  * snd_hdac_stream_init - initialize each stream (aka device)
  * @bus: HD-audio core bus