staging: iio: tsl2x7x: remove unnecessary parentheses

This patch fixes the error 'Unnecessary parentheses around 'XXX' from
checkpatch.pl. It also fixes several other places with unnecessary
parentheses that checkpatch.pl did not detect.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/light/tsl2x7x.c

@@ -348,9 +348,9 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 
 	/* clear any existing interrupt status */
 	ret = i2c_smbus_write_byte(chip->client,
-				   (TSL2X7X_CMD_REG |
+				   TSL2X7X_CMD_REG |
 				   TSL2X7X_CMD_SPL_FN |
-				   TSL2X7X_CMD_ALS_INT_CLR));
+				   TSL2X7X_CMD_ALS_INT_CLR);
 	if (ret < 0) {
 		dev_err(&chip->client->dev,
 			"i2c_write_command failed - err = %d\n", ret);
@@ -364,7 +364,7 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 	chip->als_cur_info.als_ch0 = ch0;
 	chip->als_cur_info.als_ch1 = ch1;
 
-	if ((ch0 >= chip->als_saturation) || (ch1 >= chip->als_saturation)) {
+	if (ch0 >= chip->als_saturation || ch1 >= chip->als_saturation) {
 		lux = TSL2X7X_LUX_CALC_OVER_FLOW;
 		goto return_max;
 	}
@@ -697,14 +697,14 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
 		dev_info(&chip->client->dev, "Setting Up Interrupt(s)\n");
 
 		reg_val = TSL2X7X_CNTL_PWR_ON | TSL2X7X_CNTL_ADC_ENBL;
-		if ((chip->settings.interrupts_en == 0x20) ||
-		    (chip->settings.interrupts_en == 0x30))
+		if (chip->settings.interrupts_en == 0x20 ||
+		    chip->settings.interrupts_en == 0x30)
 			reg_val |= TSL2X7X_CNTL_PROX_DET_ENBL;
 
 		reg_val |= chip->settings.interrupts_en;
 		ret = i2c_smbus_write_byte_data(chip->client,
-						(TSL2X7X_CMD_REG |
-						TSL2X7X_CNTRL), reg_val);
+						TSL2X7X_CMD_REG | TSL2X7X_CNTRL,
+						reg_val);
 		if (ret < 0)
 			dev_err(&chip->client->dev,
 				"%s: failed in tsl2x7x_IOCTL_INT_SET.\n",
@@ -1721,7 +1721,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
 		return -EINVAL;
 	}
 
-	ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
+	ret = i2c_smbus_write_byte(clientp, TSL2X7X_CMD_REG | TSL2X7X_CNTRL);
 	if (ret < 0) {
 		dev_err(&clientp->dev, "write to cmd reg failed. err = %d\n",
 			ret);