ASoC: codecs: da*: 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: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/87sge1wiwi.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c
index 2bb727d..3d05c37 100644
--- a/sound/soc/codecs/da7210.c
+++ b/sound/soc/codecs/da7210.c
@@ -924,7 +924,7 @@ static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
 	return 0;
 }
 
-static int da7210_mute(struct snd_soc_dai *dai, int mute)
+static int da7210_mute(struct snd_soc_dai *dai, int mute, int direction)
 {
 	struct snd_soc_component *component = dai->component;
 	u8 mute_reg = snd_soc_component_read(component, DA7210_DAC_HPF) & 0xFB;
@@ -1036,7 +1036,8 @@ static const struct snd_soc_dai_ops da7210_dai_ops = {
 	.set_fmt	= da7210_set_dai_fmt,
 	.set_sysclk	= da7210_set_dai_sysclk,
 	.set_pll	= da7210_set_dai_pll,
-	.digital_mute	= da7210_mute,
+	.mute_stream	= da7210_mute,
+	.no_capture_mute = 1,
 };
 
 static struct snd_soc_dai_driver da7210_dai = {