extcon: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index 5d16428..5694c46 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -95,7 +95,7 @@
 static int adc_jack_probe(struct platform_device *pdev)
 {
 	struct adc_jack_data *data;
-	struct adc_jack_pdata *pdata = pdev->dev.platform_data;
+	struct adc_jack_pdata *pdata = dev_get_platdata(&pdev->dev);
 	int i, err = 0;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 862743b..cd7dbb60 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -78,7 +78,7 @@
 
 static int gpio_extcon_probe(struct platform_device *pdev)
 {
-	struct gpio_extcon_platform_data *pdata = pdev->dev.platform_data;
+	struct gpio_extcon_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct gpio_extcon_data *extcon_data;
 	int ret;
 
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 89fdd05..0c2fb68 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -135,7 +135,7 @@
 static int palmas_usb_probe(struct platform_device *pdev)
 {
 	struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
-	struct palmas_usb_platform_data	*pdata = pdev->dev.platform_data;
+	struct palmas_usb_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct device_node *node = pdev->dev.of_node;
 	struct palmas_usb *palmas_usb;
 	int status;