ASoC: tas2770: Remove unused variables

Remove unused variables in the private struct and the code as these
variables are initially set and then there is no additional code
utilizing these variables.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200923132600.10652-6-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/tas2770.c

@@ -249,8 +249,6 @@ static int tas2770_set_bitwidth(struct tas2770_priv *tas2770, int bitwidth)
 	if (ret < 0)
 		return ret;
 
-	tas2770->channel_size = bitwidth;
-
 	ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG5,
 					    TAS2770_TDM_CFG_REG5_VSNS_MASK |
 					    TAS2770_TDM_CFG_REG5_50_MASK,
@@ -312,7 +310,6 @@ static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate)
 	if (ret < 0)
 		return ret;
 
-	tas2770->sampling_rate = samplerate;
 	return 0;
 }
 
@@ -400,8 +397,6 @@ static int tas2770_set_dai_tdm_slot(struct snd_soc_dai *dai,
 				int slots, int slot_width)
 {
 	struct snd_soc_component *component = dai->component;
-	struct tas2770_priv *tas2770 =
-			snd_soc_component_get_drvdata(component);
 	int left_slot, right_slot;
 	int ret;
 
@@ -466,7 +461,6 @@ static int tas2770_set_dai_tdm_slot(struct snd_soc_dai *dai,
 	if (ret < 0)
 		return ret;
 
-	tas2770->slot_width = slot_width;
 	return 0;
 }
 
@@ -688,8 +682,6 @@ static int tas2770_i2c_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, tas2770);
 	dev_set_drvdata(&client->dev, tas2770);
 
-	tas2770->power_state = TAS2770_POWER_SHUTDOWN;
-
 	tas2770->regmap = devm_regmap_init_i2c(client, &tas2770_i2c_regmap);
 	if (IS_ERR(tas2770->regmap)) {
 		result = PTR_ERR(tas2770->regmap);
@@ -716,9 +708,6 @@ static int tas2770_i2c_probe(struct i2c_client *client,
 		}
 	}
 
-	tas2770->channel_size = 0;
-	tas2770->slot_width = 0;
-
 	result = tas2770_register_codec(tas2770);
 	if (result)
 		dev_err(tas2770->dev, "Register codec failed.\n");

sound/soc/codecs/tas2770.h

@@ -128,15 +128,11 @@
 #define ERROR_CLASSD_PWR    BIT(5)
 
 struct tas2770_priv {
-	struct device *dev;
-	struct regmap *regmap;
 	struct snd_soc_component *component;
-	int power_state;
 	struct gpio_desc *reset_gpio;
 	struct gpio_desc *sdz_gpio;
-	int sampling_rate;
-	int channel_size;
-	int slot_width;
+	struct regmap *regmap;
+	struct device *dev;
 	int v_sense_slot;
 	int i_sense_slot;
 };