power: supply: twl4030_madc: Use devm_power_supply_register() helper

Use the device lifecycle managed register function. This helps prevent
mistakes like unregistering out of order in cleanup functions and
forgetting to unregister on error paths.

Signed-off-by: Andrew Davis <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Sebastian Reichel <[e-mail]>

drivers/power/supply/twl4030_madc_battery.c

···
 		twl4030_cmp, NULL);
 
 	twl4030_madc_bat->pdata = pdata;
-	platform_set_drvdata(pdev, twl4030_madc_bat);
 	psy_cfg.drv_data = twl4030_madc_bat;
-	twl4030_madc_bat->psy = power_supply_register(&pdev->dev,
-						      &twl4030_madc_bat_desc,
-						      &psy_cfg);
+	twl4030_madc_bat->psy = devm_power_supply_register(&pdev->dev,
+							   &twl4030_madc_bat_desc,
+							   &psy_cfg);
 	if (IS_ERR(twl4030_madc_bat->psy))
 		return PTR_ERR(twl4030_madc_bat->psy);
 
 	return 0;
-}
-
-static void twl4030_madc_battery_remove(struct platform_device *pdev)
-{
-	struct twl4030_madc_battery *bat = platform_get_drvdata(pdev);
-
-	power_supply_unregister(bat->psy);
 }
 
 static struct platform_driver twl4030_madc_battery_driver = {
···
 		.name = "twl4030_madc_battery",
 	},
 	.probe  = twl4030_madc_battery_probe,
-	.remove_new = twl4030_madc_battery_remove,
 };
 module_platform_driver(twl4030_madc_battery_driver);