extcon: Remove the optional name of extcon device

This patch removes the optional name of extcon device. Instead,
extcon_dev_register() set the device name as 'extcon[number]' naming pattern.
- /sys/class/extcon/[hardcoded device name] -> /sys/class/extcon/extcon[number]

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Graeme Gregory <gg@slimlogic.co.uk>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Jaewon Kim <jaewon02.kim@samsung.com>
diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index 768eaed..5bf08ec 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -110,7 +110,6 @@
 		dev_err(&pdev->dev, "failed to allocate extcon device\n");
 		return -ENOMEM;
 	}
-	data->edev->name = pdata->name;
 
 	if (!pdata->adc_conditions ||
 			!pdata->adc_conditions[0].state) {
diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 7af33fc..355459a 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -104,7 +104,6 @@
 		dev_err(&pdev->dev, "failed to allocate extcon device\n");
 		return -ENOMEM;
 	}
-	extcon_data->edev->name = pdata->name;
 
 	extcon_data->gpio = pdata->gpio;
 	extcon_data->gpio_active_low = pdata->gpio_active_low;
diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index 6d5febe..ad8f8dd 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -729,8 +729,6 @@
 		return -ENOMEM;
 	}
 
-	info->edev->name = dev_name(&pdev->dev);
-
 	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register extcon device\n");
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index a4fe7fd..c274249 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1158,7 +1158,6 @@
 		dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
 		return -ENOMEM;
 	}
-	info->edev->name = DEV_NAME;
 
 	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
 	if (ret) {
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index da269a1..33613c4 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -696,7 +696,6 @@
 		ret = -ENOMEM;
 		goto err_irq;
 	}
-	info->edev->name = DEV_NAME;
 
 	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
 	if (ret) {
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 11c6757..9c8943d 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -193,7 +193,6 @@
 		dev_err(&pdev->dev, "failed to allocate extcon device\n");
 		return -ENOMEM;
 	}
-	palmas_usb->edev->name = kstrdup(node->name, GFP_KERNEL);
 	palmas_usb->edev->mutually_exclusive = mutually_exclusive;
 
 	status = devm_extcon_dev_register(&pdev->dev, palmas_usb->edev);
diff --git a/drivers/extcon/extcon-rt8973a.c b/drivers/extcon/extcon-rt8973a.c
index 8c2194f..04447f3 100644
--- a/drivers/extcon/extcon-rt8973a.c
+++ b/drivers/extcon/extcon-rt8973a.c
@@ -631,7 +631,6 @@
 		dev_err(info->dev, "failed to allocate memory for extcon\n");
 		return -ENOMEM;
 	}
-	info->edev->name = np->name;
 
 	/* Register extcon device */
 	ret = devm_extcon_dev_register(info->dev, info->edev);
diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
index 2f93cf3..6f1d11f 100644
--- a/drivers/extcon/extcon-sm5502.c
+++ b/drivers/extcon/extcon-sm5502.c
@@ -623,7 +623,6 @@
 		dev_err(info->dev, "failed to allocate memory for extcon\n");
 		return -ENOMEM;
 	}
-	info->edev->name = np->name;
 
 	/* Register extcon device */
 	ret = devm_extcon_dev_register(info->dev, info->edev);