pwm: sl28cpld: 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 <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-sl28cpld.c

@@ -231,9 +231,7 @@ static int sl28cpld_pwm_probe(struct platform_device *pdev)
 	chip->ops = &sl28cpld_pwm_ops;
 	chip->npwm = 1;
 
-	platform_set_drvdata(pdev, priv);
-
-	ret = pwmchip_add(&priv->pwm_chip);
+	ret = devm_pwmchip_add(&pdev->dev, &priv->pwm_chip);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add PWM chip (%pe)",
 			ERR_PTR(ret));
@@ -243,13 +241,6 @@ static int sl28cpld_pwm_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int sl28cpld_pwm_remove(struct platform_device *pdev)
-{
-	struct sl28cpld_pwm *priv = platform_get_drvdata(pdev);
-
-	return pwmchip_remove(&priv->pwm_chip);
-}
-
 static const struct of_device_id sl28cpld_pwm_of_match[] = {
 	{ .compatible = "kontron,sl28cpld-pwm" },
 	{}
@@ -258,7 +249,6 @@ MODULE_DEVICE_TABLE(of, sl28cpld_pwm_of_match);
 
 static struct platform_driver sl28cpld_pwm_driver = {
 	.probe = sl28cpld_pwm_probe,
-	.remove	= sl28cpld_pwm_remove,
 	.driver = {
 		.name = "sl28cpld-pwm",
 		.of_match_table = sl28cpld_pwm_of_match,