ASoC: atmel: merge .digital_mute() into .mute_stream()

snd_soc_dai_digital_mute() is internally using both
mute_stream() (1) or digital_mute() (2), but the difference between
these 2 are only handling direction.
We can merge digital_mute() into mute_stream

	int snd_soc_dai_digital_mute(xxx, int direction)
	{
		...
		else if (dai->driver->ops->mute_stream)
(1)			return dai->driver->ops->mute_stream(xxx, direction);
		else if (direction == SNDRV_PCM_STREAM_PLAYBACK &&
			 dai->driver->ops->digital_mute)
(2)			return dai->driver->ops->digital_mute(xxx);
		...
	}

-
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/87eepb2dnq.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/atmel/atmel-classd.c

@@ -288,8 +288,8 @@ static int atmel_classd_component_resume(struct snd_soc_component *component)
 	return regcache_sync(dd->regmap);
 }
 
-static int atmel_classd_cpu_dai_digital_mute(struct snd_soc_dai *cpu_dai,
-					     int mute)
+static int atmel_classd_cpu_dai_mute_stream(struct snd_soc_dai *cpu_dai,
+					    int mute, int direction)
 {
 	struct snd_soc_component *component = cpu_dai->component;
 	u32 mask, val;
@@ -432,10 +432,11 @@ static int atmel_classd_cpu_dai_trigger(struct snd_pcm_substream *substream,
 static const struct snd_soc_dai_ops atmel_classd_cpu_dai_ops = {
 	.startup        = atmel_classd_cpu_dai_startup,
 	.shutdown       = atmel_classd_cpu_dai_shutdown,
-	.digital_mute	= atmel_classd_cpu_dai_digital_mute,
+	.mute_stream	= atmel_classd_cpu_dai_mute_stream,
 	.hw_params	= atmel_classd_cpu_dai_hw_params,
 	.prepare	= atmel_classd_cpu_dai_prepare,
 	.trigger	= atmel_classd_cpu_dai_trigger,
+	.no_capture_mute = 1,
 };
 
 static struct snd_soc_dai_driver atmel_classd_cpu_dai = {