extcon: max77693: Set default uart/usb path by using platform data

This patch determine default uart/usb path by using platform data.
The MAX77693 MUIC device can possibliy set USB/UART/AUDIO/USB_AUX
/UART_AUX to internal h/w path of MUIC device. So, drvier should
determine default uart/usb path.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 7b7f1a2..abab068 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -63,6 +63,13 @@
 
 	/* Button of dock device */
 	struct input_dev *dock;
+
+	/*
+	 * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB
+	 * h/w path of COMP2/COMN1 on CONTROL1 register.
+	 */
+	int path_usb;
+	int path_uart;
 };
 
 enum max77693_muic_cable_group {
@@ -1058,6 +1065,23 @@
 				= muic_pdata->init_data[i].data;
 	}
 
+	/*
+	 * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB
+	 * h/w path of COMP2/COMN1 on CONTROL1 register.
+	 */
+	if (muic_pdata->path_uart)
+		info->path_uart = muic_pdata->path_uart;
+	else
+		info->path_uart = CONTROL1_SW_UART;
+
+	if (muic_pdata->path_usb)
+		info->path_usb = muic_pdata->path_usb;
+	else
+		info->path_usb = CONTROL1_SW_USB;
+
+	/* Set initial path for UART */
+	 max77693_muic_set_path(info, info->path_uart, true);
+
 	/* Check revision number of MUIC device*/
 	ret = max77693_read_reg(info->max77693->regmap_muic,
 			MAX77693_MUIC_REG_ID, &id);