extcon: Set parent device of extcon device using prameter of devm_extcon_dev_allocate

This patch set the parent device of extcon device using first parameter of
devm_extco_dev_allocate() to remove duplicate code on all of extcon provider
drivers.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reported-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Tested-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Graeme Gregory <gg@slimlogic.co.uk>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>

drivers/extcon/extcon-adc-jack.c

@@ -112,7 +112,6 @@ static int adc_jack_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to allocate extcon device\n");
 		return -ENOMEM;
 	}
-	data->edev->dev.parent = &pdev->dev;
 	data->edev->name = pdata->name;
 
 	/* Check the length of array and set num_cables */

drivers/extcon/extcon-arizona.c

@@ -1170,7 +1170,6 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 	info->edev->name = "Headset Jack";
-	info->edev->dev.parent = arizona->dev;
 
 	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
 	if (ret < 0) {

drivers/extcon/extcon-class.c

@@ -645,6 +645,8 @@ struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
 		return edev;
 	}
 
+	edev->dev.parent = dev;
+
 	*ptr = edev;
 	devres_add(dev, ptr);
 

drivers/extcon/extcon-gpio.c

@@ -105,7 +105,6 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 	extcon_data->edev->name = pdata->name;
-	extcon_data->edev->dev.parent = &pdev->dev;
 
 	extcon_data->gpio = pdata->gpio;
 	extcon_data->gpio_active_low = pdata->gpio_active_low;

drivers/extcon/extcon-max77693.c

@@ -1183,7 +1183,6 @@ static int max77693_muic_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 	info->edev->name = DEV_NAME;
-	info->edev->dev.parent = &pdev->dev;
 
 	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
 	if (ret) {

drivers/extcon/extcon-max8997.c

@@ -706,7 +706,6 @@ static int max8997_muic_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 	info->edev->name = DEV_NAME;
-	info->edev->dev.parent = &pdev->dev;
 
 	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
 	if (ret) {

drivers/extcon/extcon-palmas.c

@@ -194,7 +194,6 @@ static int palmas_usb_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 	palmas_usb->edev->name = kstrdup(node->name, GFP_KERNEL);
-	palmas_usb->edev->dev.parent = palmas_usb->dev;
 	palmas_usb->edev->mutually_exclusive = mutually_exclusive;
 
 	status = devm_extcon_dev_register(&pdev->dev, palmas_usb->edev);