ASoC: mt6359: reduce log verbosity for optional DT properties

DT properties "dmic-mode" and "mic-type-X" are optional.  Reduces the
log verbosity and changes the message a bit to avoid misleading.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20210202033557.1621029-1-tzungbi@google.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/mt6359.c

@@ -2754,7 +2754,8 @@ static int mt6359_parse_dt(struct mt6359_priv *priv)
 	ret = of_property_read_u32(np, "mediatek,dmic-mode",
 				   &priv->dmic_one_wire_mode);
 	if (ret) {
-		dev_warn(priv->dev, "%s() failed to read dmic-mode\n",
+		dev_info(priv->dev,
+			 "%s() failed to read dmic-mode, use default (0)\n",
 			 __func__);
 		priv->dmic_one_wire_mode = 0;
 	}
@@ -2762,24 +2763,27 @@ static int mt6359_parse_dt(struct mt6359_priv *priv)
 	ret = of_property_read_u32(np, "mediatek,mic-type-0",
 				   &priv->mux_select[MUX_MIC_TYPE_0]);
 	if (ret) {
-		dev_warn(priv->dev, "%s() failed to read mic-type-0\n",
-			 __func__);
+		dev_info(priv->dev,
+			 "%s() failed to read mic-type-0, use default (%d)\n",
+			 __func__, MIC_TYPE_MUX_IDLE);
 		priv->mux_select[MUX_MIC_TYPE_0] = MIC_TYPE_MUX_IDLE;
 	}
 
 	ret = of_property_read_u32(np, "mediatek,mic-type-1",
 				   &priv->mux_select[MUX_MIC_TYPE_1]);
 	if (ret) {
-		dev_warn(priv->dev, "%s() failed to read mic-type-1\n",
-			 __func__);
+		dev_info(priv->dev,
+			 "%s() failed to read mic-type-1, use default (%d)\n",
+			 __func__, MIC_TYPE_MUX_IDLE);
 		priv->mux_select[MUX_MIC_TYPE_1] = MIC_TYPE_MUX_IDLE;
 	}
 
 	ret = of_property_read_u32(np, "mediatek,mic-type-2",
 				   &priv->mux_select[MUX_MIC_TYPE_2]);
 	if (ret) {
-		dev_warn(priv->dev, "%s() failed to read mic-type-2\n",
-			 __func__);
+		dev_info(priv->dev,
+			 "%s() failed to read mic-type-2, use default (%d)\n",
+			 __func__, MIC_TYPE_MUX_IDLE);
 		priv->mux_select[MUX_MIC_TYPE_2] = MIC_TYPE_MUX_IDLE;
 	}