ASoC: SOF: Intel: hda-dai: Do snd_hdac_ext_stream_decouple() only once

Call snd_hdac_ext_stream_decouple_locked() unconditionally in
hda_link_stream_assign(), the snd_hdac_ext_stream_decouple_locked() have
internal checks to avoid re-configuring.

There is no need to call snd_hdac_ext_stream_decouple() via
hda_link_dma_params() as the stream must have been set to decoupled when
it got assigned (even if it used local condition to call
snd_hdac_ext_stream_decouple_locked()).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220712131620.13365-3-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

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,