ASoC: cs53l30: Remove unneeded gpiod NULL check

The gpiod API checks for NULL descriptors, so there is no need to
duplicate the check in the driver.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs53l30.c

@@ -842,8 +842,7 @@ static int cs53l30_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
 {
 	struct cs53l30_private *priv = snd_soc_codec_get_drvdata(dai->codec);
 
-	if (priv->mute_gpio)
-		gpiod_set_value_cansleep(priv->mute_gpio, mute);
+	gpiod_set_value_cansleep(priv->mute_gpio, mute);
 
 	return 0;
 }
@@ -960,8 +959,7 @@ static int cs53l30_i2c_probe(struct i2c_client *client,
 		goto error;
 	}
 
-	if (cs53l30->reset_gpio)
-		gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
+	gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
 
 	i2c_set_clientdata(client, cs53l30);
 
@@ -1056,8 +1054,7 @@ static int cs53l30_i2c_remove(struct i2c_client *client)
 	snd_soc_unregister_codec(&client->dev);
 
 	/* Hold down reset */
-	if (cs53l30->reset_gpio)
-		gpiod_set_value_cansleep(cs53l30->reset_gpio, 0);
+	gpiod_set_value_cansleep(cs53l30->reset_gpio, 0);
 
 	regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies),
 			       cs53l30->supplies);
@@ -1073,8 +1070,7 @@ static int cs53l30_runtime_suspend(struct device *dev)
 	regcache_cache_only(cs53l30->regmap, true);
 
 	/* Hold down reset */
-	if (cs53l30->reset_gpio)
-		gpiod_set_value_cansleep(cs53l30->reset_gpio, 0);
+	gpiod_set_value_cansleep(cs53l30->reset_gpio, 0);
 
 	regulator_bulk_disable(ARRAY_SIZE(cs53l30->supplies),
 			       cs53l30->supplies);
@@ -1094,8 +1090,7 @@ static int cs53l30_runtime_resume(struct device *dev)
 		return ret;
 	}
 
-	if (cs53l30->reset_gpio)
-		gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
+	gpiod_set_value_cansleep(cs53l30->reset_gpio, 1);
 
 	regcache_cache_only(cs53l30->regmap, false);
 	ret = regcache_sync(cs53l30->regmap);