ASOC: SOF: Intel: hda-dai: consistent naming for HDA DAI and HDA link DMA

The Intel documentation refers to the concepts of 'HDAudio host
DMA' (system memory <--> DSP) and 'HDaudio link DMA' (DSP <-->
peripherals). We currently use the prefix 'hda_link' to describe DAI
operations, which can be confused for dailink operations.

Since the topology tokens refer unambiguously to the 'HDA' dai, let's
drop the link prefix for dai-related ops/callbacks. Conversely let's
use 'hda_link_dma' for routines related to the DMA management. In a
follow-up patch we will introduce the 'hda_dai_link' prefix for dailink
ops/callbacks.
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/20220421203201.1550328-4-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

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

@@ -50,7 +50,7 @@ static bool hda_check_fes(struct snd_soc_pcm_runtime *rtd,
 }
 
 static struct hdac_ext_stream *
-	hda_link_stream_assign(struct hdac_bus *bus,
+hda_link_stream_assign(struct hdac_bus *bus,
 		       struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
@@ -162,7 +162,7 @@ static int hda_link_dma_params(struct hdac_ext_stream *hext_stream,
 	return 0;
 }
 
-static int hda_link_dai_widget_update(struct sof_intel_hda_stream *hda_stream,
+static int hda_dai_widget_update(struct sof_intel_hda_stream *hda_stream,
 				 struct snd_soc_dapm_widget *w,
 				 int channel, bool widget_setup)
 {
@@ -177,7 +177,7 @@ static int hda_link_dai_widget_update(struct sof_intel_hda_stream *hda_stream,
 	return hda_ctrl_dai_widget_free(w, SOF_DAI_CONFIG_FLAGS_NONE, &data);
 }
 
-static int hda_link_hw_params(struct snd_pcm_substream *substream,
+static int hda_dai_hw_params(struct snd_pcm_substream *substream,
 			     struct snd_pcm_hw_params *params,
 			     struct snd_soc_dai *dai)
 {
@@ -213,7 +213,7 @@ static int hda_link_hw_params(struct snd_pcm_substream *substream,
 		w = dai->capture_widget;
 
 	/* set up the DAI widget and send the DAI_CONFIG with the new tag */
-	ret = hda_link_dai_widget_update(hda_stream, w, stream_tag - 1, true);
+	ret = hda_dai_widget_update(hda_stream, w, stream_tag - 1, true);
 	if (ret < 0)
 		return ret;
 
@@ -239,7 +239,7 @@ static int hda_link_hw_params(struct snd_pcm_substream *substream,
 	return hda_link_dma_params(hext_stream, &p_params);
 }
 
-static int hda_link_pcm_prepare(struct snd_pcm_substream *substream,
+static int hda_dai_prepare(struct snd_pcm_substream *substream,
 			   struct snd_soc_dai *dai)
 {
 	struct hdac_ext_stream *hext_stream =
@@ -254,11 +254,11 @@ static int hda_link_pcm_prepare(struct snd_pcm_substream *substream,
 
 	dev_dbg(sdev->dev, "hda: prepare stream dir %d\n", substream->stream);
 
-	return hda_link_hw_params(substream, &rtd->dpcm[stream].hw_params,
+	return hda_dai_hw_params(substream, &rtd->dpcm[stream].hw_params,
 				  dai);
 }
 
-static int hda_link_dai_config_pause_push_ipc(struct snd_soc_dapm_widget *w)
+static int hda_dai_config_pause_push_ipc(struct snd_soc_dapm_widget *w)
 {
 	struct snd_sof_widget *swidget = w->dobj.private;
 	struct snd_soc_component *component = swidget->scomp;
@@ -276,7 +276,7 @@ static int hda_link_dai_config_pause_push_ipc(struct snd_soc_dapm_widget *w)
 	return ret;
 }
 
-static int ipc3_hda_link_pcm_trigger(struct snd_pcm_substream *substream,
+static int ipc3_hda_dai_trigger(struct snd_pcm_substream *substream,
 				int cmd, struct snd_soc_dai *dai)
 {
 	struct hdac_ext_stream *hext_stream =
@@ -316,7 +316,7 @@ static int ipc3_hda_link_pcm_trigger(struct snd_pcm_substream *substream,
 		/*
 		 * free DAI widget during stop/suspend to keep widget use_count's balanced.
 		 */
-		ret = hda_link_dai_widget_update(hda_stream, w, DMA_CHAN_INVALID, false);
+		ret = hda_dai_widget_update(hda_stream, w, DMA_CHAN_INVALID, false);
 		if (ret < 0)
 			return ret;
 
@@ -330,7 +330,7 @@ static int ipc3_hda_link_pcm_trigger(struct snd_pcm_substream *substream,
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 		snd_hdac_ext_link_stream_clear(hext_stream);
 
-		ret = hda_link_dai_config_pause_push_ipc(w);
+		ret = hda_dai_config_pause_push_ipc(w);
 		if (ret < 0)
 			return ret;
 		break;
@@ -340,7 +340,7 @@ static int ipc3_hda_link_pcm_trigger(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static int hda_link_hw_free(struct snd_pcm_substream *substream,
+static int hda_dai_hw_free(struct snd_pcm_substream *substream,
 			   struct snd_soc_dai *dai)
 {
 	unsigned int stream_tag;
@@ -372,7 +372,7 @@ static int hda_link_hw_free(struct snd_pcm_substream *substream,
 		w = dai->capture_widget;
 
 	/* free the link DMA channel in the FW and the DAI widget */
-	ret = hda_link_dai_widget_update(hda_stream, w, DMA_CHAN_INVALID, false);
+	ret = hda_dai_widget_update(hda_stream, w, DMA_CHAN_INVALID, false);
 	if (ret < 0)
 		return ret;
 
@@ -395,11 +395,11 @@ static int hda_link_hw_free(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static const struct snd_soc_dai_ops ipc3_hda_link_dai_ops = {
-	.hw_params = hda_link_hw_params,
-	.hw_free = hda_link_hw_free,
-	.trigger = ipc3_hda_link_pcm_trigger,
-	.prepare = hda_link_pcm_prepare,
+static const struct snd_soc_dai_ops ipc3_hda_dai_ops = {
+	.hw_params = hda_dai_hw_params,
+	.hw_free = hda_dai_hw_free,
+	.trigger = ipc3_hda_dai_trigger,
+	.prepare = hda_dai_prepare,
 };
 
 #endif
@@ -531,7 +531,7 @@ void hda_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops)
 			if (strstr(ops->drv[i].name, "iDisp") ||
 			    strstr(ops->drv[i].name, "Analog") ||
 			    strstr(ops->drv[i].name, "Digital"))
-				ops->drv[i].ops = &ipc3_hda_link_dai_ops;
+				ops->drv[i].ops = &ipc3_hda_dai_ops;
 #endif
 		}
 		break;