ASoC: remove bespoke trigger support

Bespoke trigger support was added when Linux v3.5 by this patch.

	commit 07bf84a
	("ASoC: dpcm: Add bespoke trigger()")

test-component driver is using it, but this is because it indicates used
function for debug/trace purpose. Except test-component driver, bespoke
trigger has never been used over 10 years in upstream.

We can re-support it if needed in the future, but let's remove it for now,
because it just noise in upstream.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/87v80ewmdi.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc-dai.h

@@ -240,8 +240,6 @@ int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 			    int rollback);
-int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
-				    int cmd);
 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
 			   snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
 
@@ -345,8 +343,7 @@ struct snd_soc_dai_ops {
 	 */
 	int (*trigger)(struct snd_pcm_substream *, int,
 		struct snd_soc_dai *);
-	int (*bespoke_trigger)(struct snd_pcm_substream *, int,
-		struct snd_soc_dai *);
+
 	/*
 	 * For hardware based FIFO caused delay reporting.
 	 * Optional.

include/sound/soc-dpcm.h

@@ -58,7 +58,6 @@ enum snd_soc_dpcm_state {
 enum snd_soc_dpcm_trigger {
 	SND_SOC_DPCM_TRIGGER_PRE		= 0,
 	SND_SOC_DPCM_TRIGGER_POST,
-	SND_SOC_DPCM_TRIGGER_BESPOKE,
 };
 
 /*

sound/soc/generic/test-component.c

@@ -181,14 +181,6 @@ static int test_dai_trigger(struct snd_pcm_substream *substream, int cmd, struct
 	return 0;
 }
 
-static int test_dai_bespoke_trigger(struct snd_pcm_substream *substream,
-				    int cmd, struct snd_soc_dai *dai)
-{
-	mile_stone(dai);
-
-	return 0;
-}
-
 static const u64 test_dai_formats =
 	/*
 	 * Select below from Sound Card, not auto
@@ -228,7 +220,6 @@ static const struct snd_soc_dai_ops test_verbose_ops = {
 	.hw_params		= test_dai_hw_params,
 	.hw_free		= test_dai_hw_free,
 	.trigger		= test_dai_trigger,
-	.bespoke_trigger	= test_dai_bespoke_trigger,
 	.auto_selectable_formats	= &test_dai_formats,
 	.num_auto_selectable_formats	= 1,
 };

sound/soc/soc-dai.c

@@ -685,26 +685,6 @@ int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream,
 	return ret;
 }
 
-int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
-				    int cmd)
-{
-	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
-	struct snd_soc_dai *dai;
-	int i, ret;
-
-	for_each_rtd_dais(rtd, i, dai) {
-		if (dai->driver->ops &&
-		    dai->driver->ops->bespoke_trigger) {
-			ret = dai->driver->ops->bespoke_trigger(substream,
-								cmd, dai);
-			if (ret < 0)
-				return soc_dai_ret(dai, ret);
-		}
-	}
-
-	return 0;
-}
-
 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
 			   snd_pcm_sframes_t *cpu_delay,
 			   snd_pcm_sframes_t *codec_delay)

sound/soc/soc-pcm.c

@@ -2388,14 +2388,6 @@ static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd)
 			break;
 		}
 		break;
-	case SND_SOC_DPCM_TRIGGER_BESPOKE:
-		/* bespoke trigger() - handles both FE and BEs */
-
-		dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n",
-				fe->dai_link->name, cmd);
-
-		ret = snd_soc_pcm_dai_bespoke_trigger(substream, cmd);
-		break;
 	default:
 		dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd,
 				fe->dai_link->name);
@@ -2525,26 +2517,12 @@ static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream)
 
 static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream)
 {
-	struct snd_pcm_substream *substream =
-		snd_soc_dpcm_get_substream(fe, stream);
-	enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream];
 	int err;
 
 	dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n",
 		snd_pcm_direction_name(stream), fe->dai_link->name);
 
-	if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) {
-		/* call bespoke trigger - FE takes care of all BE triggers */
-		dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n",
-				fe->dai_link->name);
-
-		err = snd_soc_pcm_dai_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP);
-	} else {
-		dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n",
-			fe->dai_link->name);
-
-		err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP);
-	}
+	err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP);
 
 	dpcm_be_dai_hw_free(fe, stream);
 
@@ -2558,10 +2536,7 @@ static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream)
 
 static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream)
 {
-	struct snd_pcm_substream *substream =
-		snd_soc_dpcm_get_substream(fe, stream);
 	struct snd_soc_dpcm *dpcm;
-	enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream];
 	int ret = 0;
 
 	dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n",
@@ -2605,23 +2580,9 @@ static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream)
 		fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP)
 		return 0;
 
-	if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) {
-		/* call trigger on the frontend - FE takes care of all BE triggers */
-		dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n",
-				fe->dai_link->name);
-
-		ret = snd_soc_pcm_dai_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START);
-		if (ret < 0)
-			goto hw_free;
-	} else {
-		dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n",
-			fe->dai_link->name);
-
-		ret = dpcm_be_dai_trigger(fe, stream,
-					SNDRV_PCM_TRIGGER_START);
-		if (ret < 0)
-			goto hw_free;
-	}
+	ret = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_START);
+	if (ret < 0)
+		goto hw_free;
 
 	return 0;