ASoC: SOF: Intel: hda-dai: Remove BE DAI DRV ops for SSP DAI's

Now that the DAI_CONFIG IPC is sent after widget setup and before widget
free, there is no need for the BE DAI DRV ops that do the same thing. So
remove them.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230307140435.2808-2-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

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

@@ -605,115 +605,6 @@ static const struct snd_soc_dai_ops ipc4_hda_dai_ops = {
 
 #endif
 
-/* only one flag used so far to harden hw_params/hw_free/trigger/prepare */
-struct ssp_dai_dma_data {
-	bool setup;
-};
-
-static int ssp_dai_setup_or_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai,
-				 bool setup)
-{
-	struct snd_soc_dapm_widget *w;
-
-	w = snd_soc_dai_get_widget(dai, substream->stream);
-
-	if (setup)
-		return hda_ctrl_dai_widget_setup(w, SOF_DAI_CONFIG_FLAGS_NONE, NULL);
-
-	return hda_ctrl_dai_widget_free(w, SOF_DAI_CONFIG_FLAGS_NONE, NULL);
-}
-
-static int ssp_dai_startup(struct snd_pcm_substream *substream,
-			   struct snd_soc_dai *dai)
-{
-	struct ssp_dai_dma_data *dma_data;
-
-	dma_data = kzalloc(sizeof(*dma_data), GFP_KERNEL);
-	if (!dma_data)
-		return -ENOMEM;
-
-	snd_soc_dai_set_dma_data(dai, substream, dma_data);
-
-	return 0;
-}
-
-static int ssp_dai_setup(struct snd_pcm_substream *substream,
-			 struct snd_soc_dai *dai,
-			 bool setup)
-{
-	struct ssp_dai_dma_data *dma_data;
-	int ret = 0;
-
-	dma_data = snd_soc_dai_get_dma_data(dai, substream);
-	if (!dma_data) {
-		dev_err(dai->dev, "%s: failed to get dma_data\n", __func__);
-		return -EIO;
-	}
-
-	if (dma_data->setup != setup) {
-		ret = ssp_dai_setup_or_free(substream, dai, setup);
-		if (!ret)
-			dma_data->setup = setup;
-	}
-	return ret;
-}
-
-static int ssp_dai_hw_params(struct snd_pcm_substream *substream,
-			     struct snd_pcm_hw_params *params,
-			     struct snd_soc_dai *dai)
-{
-	/* params are ignored for now */
-	return ssp_dai_setup(substream, dai, true);
-}
-
-static int ssp_dai_prepare(struct snd_pcm_substream *substream,
-			   struct snd_soc_dai *dai)
-{
-	/*
-	 * the SSP will only be reconfigured during resume operations and
-	 * not in case of xruns
-	 */
-	return ssp_dai_setup(substream, dai, true);
-}
-
-static int ipc3_ssp_dai_trigger(struct snd_pcm_substream *substream,
-				int cmd, struct snd_soc_dai *dai)
-{
-	if (cmd != SNDRV_PCM_TRIGGER_SUSPEND)
-		return 0;
-
-	return ssp_dai_setup(substream, dai, false);
-}
-
-static int ssp_dai_hw_free(struct snd_pcm_substream *substream,
-			   struct snd_soc_dai *dai)
-{
-	return ssp_dai_setup(substream, dai, false);
-}
-
-static void ssp_dai_shutdown(struct snd_pcm_substream *substream,
-			     struct snd_soc_dai *dai)
-{
-	struct ssp_dai_dma_data *dma_data;
-
-	dma_data = snd_soc_dai_get_dma_data(dai, substream);
-	if (!dma_data) {
-		dev_err(dai->dev, "%s: failed to get dma_data\n", __func__);
-		return;
-	}
-	snd_soc_dai_set_dma_data(dai, substream, NULL);
-	kfree(dma_data);
-}
-
-static const struct snd_soc_dai_ops ipc3_ssp_dai_ops = {
-	.startup = ssp_dai_startup,
-	.hw_params = ssp_dai_hw_params,
-	.prepare = ssp_dai_prepare,
-	.trigger = ipc3_ssp_dai_trigger,
-	.hw_free = ssp_dai_hw_free,
-	.shutdown = ssp_dai_shutdown,
-};
-
 void hda_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops)
 {
 	int i;
@@ -721,10 +612,6 @@ void hda_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops)
 	switch (sdev->pdata->ipc_type) {
 	case SOF_IPC:
 		for (i = 0; i < ops->num_drv; i++) {
-			if (strstr(ops->drv[i].name, "SSP")) {
-				ops->drv[i].ops = &ipc3_ssp_dai_ops;
-				continue;
-			}
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
 			if (strstr(ops->drv[i].name, "iDisp") ||
 			    strstr(ops->drv[i].name, "Analog") ||