ASoC: tlv320aic31xx: suppress error message for EPROBE_DEFER

Both the supplies and reset GPIO might need a probe deferral for the
resource to be available. Don't print a error message in that case, as
it is a normal operating condition.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Andrew F. Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20190719143637.2018-1-l.stach@pengutronix.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/tlv320aic31xx.c

@@ -1553,7 +1553,8 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 	aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset",
 						      GPIOD_OUT_LOW);
 	if (IS_ERR(aic31xx->gpio_reset)) {
-		dev_err(aic31xx->dev, "not able to acquire gpio\n");
+		if (PTR_ERR(aic31xx->gpio_reset) != -EPROBE_DEFER)
+			dev_err(aic31xx->dev, "not able to acquire gpio\n");
 		return PTR_ERR(aic31xx->gpio_reset);
 	}
 
@@ -1564,7 +1565,9 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 				      ARRAY_SIZE(aic31xx->supplies),
 				      aic31xx->supplies);
 	if (ret) {
-		dev_err(aic31xx->dev, "Failed to request supplies: %d\n", ret);
+		if (ret != -EPROBE_DEFER)
+			dev_err(aic31xx->dev,
+				"Failed to request supplies: %d\n", ret);
 		return ret;
 	}