ASoC: SOF: Intel: hda-dai: No need to decouple host/link DMA twice

Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:

There is no need to decouple a decoupled stream twice.
Keep the decoupling in hda_link_stream_assign() only as it is going to be
executed in all cases.

Drop the outdated comment from hda_link_dma_hw_params() as well since the code
has changed around it.

sound/soc/sof/intel/hda-dai.c

@@ -126,12 +126,8 @@ hda_link_stream_assign(struct hdac_bus *bus,
 	}
 
 	if (res) {
-		/*
-		 * Decouple host and link DMA. The decoupled flag
-		 * is updated in snd_hdac_ext_stream_decouple().
-		 */
-		if (!res->decoupled)
-			snd_hdac_ext_stream_decouple_locked(bus, res, true);
+		/* Make sure that host and link DMA is decoupled. */
+		snd_hdac_ext_stream_decouple_locked(bus, res, true);
 
 		res->link_locked = 1;
 		res->link_substream = substream;
@@ -184,7 +180,6 @@ static int hda_link_dma_params(struct hdac_ext_stream *hext_stream,
 	struct hdac_ext_link *link;
 	unsigned int format_val;
 
-	snd_hdac_ext_stream_decouple(bus, hext_stream, true);
 	snd_hdac_ext_link_stream_reset(hext_stream);
 
 	format_val = snd_hdac_calc_stream_format(params->s_freq, params->ch,
@@ -221,7 +216,6 @@ static int hda_link_dma_hw_params(struct snd_pcm_substream *substream,
 	struct hdac_bus *bus = hstream->bus;
 	struct hdac_ext_link *link;
 
-	/* get stored dma data if resuming from system suspend */
 	hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
 	if (!hext_stream) {
 		hext_stream = hda_link_stream_assign(bus, substream);