ASoC: SOF: Intel: hda-dai: use snd_soc_dai_get_widget() helper

Use helper instead of open-coding the same thing multiple times.
Signed-off-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>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220421203201.1550328-6-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

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

@@ -203,10 +203,7 @@ static int hda_dai_hw_params(struct snd_pcm_substream *substream,
 
 	stream_tag = hdac_stream(hext_stream)->stream_tag;
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		w = dai->playback_widget;
-	else
-		w = dai->capture_widget;
+	w = snd_soc_dai_get_widget(dai, substream->stream);
 
 	/* set up the DAI widget and send the DAI_CONFIG with the new tag */
 	ret = hda_dai_widget_update(w, stream_tag - 1, true);
@@ -359,10 +356,7 @@ static int hda_dai_hw_free(struct snd_pcm_substream *substream,
 
 	hda_stream = hstream_to_sof_hda_stream(hext_stream);
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		w = dai->playback_widget;
-	else
-		w = dai->capture_widget;
+	w = snd_soc_dai_get_widget(dai, substream->stream);
 
 	/* free the link DMA channel in the FW and the DAI widget */
 	ret = hda_dai_widget_update(w, DMA_CHAN_INVALID, false);
@@ -407,10 +401,7 @@ static int ssp_dai_setup_or_free(struct snd_pcm_substream *substream, struct snd
 {
 	struct snd_soc_dapm_widget *w;
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		w = dai->playback_widget;
-	else
-		w = dai->capture_widget;
+	w = snd_soc_dai_get_widget(dai, substream->stream);
 
 	if (setup)
 		return hda_ctrl_dai_widget_setup(w, SOF_DAI_CONFIG_FLAGS_NONE, NULL);