pwm: ntxec: Simplify using devm_pwmchip_add()

This allows to drop the platform_driver's remove function. This is the
only user of driver data so this can go away, too.

Signed-off-by: Uwe Kleine-König <[e-mail]>
Signed-off-by: Thierry Reding <[e-mail]>

drivers/pwm/pwm-ntxec.c

···
 	priv->ec = ec;
 	priv->dev = &pdev->dev;
 
-	platform_set_drvdata(pdev, priv);
-
 	chip = &priv->chip;
 	chip->dev = &pdev->dev;
 	chip->ops = &ntxec_pwm_ops;
 	chip->npwm = 1;
 
-	return pwmchip_add(chip);
-}
-
-static int ntxec_pwm_remove(struct platform_device *pdev)
-{
-	struct ntxec_pwm *priv = platform_get_drvdata(pdev);
-	struct pwm_chip *chip = &priv->chip;
-
-	return pwmchip_remove(chip);
+	return devm_pwmchip_add(&pdev->dev, chip);
 }
 
 static struct platform_driver ntxec_pwm_driver = {
···
 		.name = "ntxec-pwm",
 	},
 	.probe = ntxec_pwm_probe,
-	.remove = ntxec_pwm_remove,
 };
 module_platform_driver(ntxec_pwm_driver);