extcon: max77693: Add support jig cable

This patch detect several kinds of JIG cable according to ADC value
and set the hardware line path according to type of JIG cable(JIG-USB-ON
/JIG-USB-OFF/JIG-UART-OFF).

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>

1 files changed, 46 insertions, 6 deletions

diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 78dc7505b965..26ce4dfeda10 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -153,9 +153,10 @@ enum {
         EXTCON_CABLE_CHARGE_DOWNSTREAM,
         EXTCON_CABLE_MHL,
         EXTCON_CABLE_MHL_TA,
+        EXTCON_CABLE_JIG_USB_ON,
+        EXTCON_CABLE_JIG_USB_OFF,
+        EXTCON_CABLE_JIG_UART_OFF,
         EXTCON_CABLE_AUDIO_VIDEO_LOAD,
-        EXTCON_CABLE_AUDIO_VIDEO_NOLOAD,
-        EXTCON_CABLE_JIG,
 
         _EXTCON_CABLE_NUM,
 };
@@ -169,9 +170,11 @@ const char *max77693_extcon_cable[] = {
         [EXTCON_CABLE_CHARGE_DOWNSTREAM]        = "Charge-downstream",
         [EXTCON_CABLE_MHL]                      = "MHL",
         [EXTCON_CABLE_MHL_TA]                   = "MHL_TA",
+        [EXTCON_CABLE_JIG_USB_ON]               = "JIG-USB-ON",
+        [EXTCON_CABLE_JIG_USB_OFF]              = "JIG-USB-OFF",
+        [EXTCON_CABLE_JIG_UART_OFF]             = "JIG-UART-OFF",
         [EXTCON_CABLE_AUDIO_VIDEO_LOAD]         = "Audio-video-load",
-        [EXTCON_CABLE_AUDIO_VIDEO_NOLOAD]       = "Audio-video-noload",
-        [EXTCON_CABLE_JIG]                      = "JIG",
+
         NULL,
 };
 
@@ -450,6 +453,44 @@ out:
         return ret;
 }
 
+static int max77693_muic_jig_handler(struct max77693_muic_info *info,
+                int cable_type, bool attached)
+{
+        char cable_name[32];
+        int ret = 0;
+        u8 path = CONTROL1_SW_OPEN;
+
+        dev_info(info->dev,
+                "external connector is %s (adc:0x%02x)\n",
+                attached ? "attached" : "detached", cable_type);
+
+        switch (cable_type) {
+        case MAX77693_MUIC_ADC_FACTORY_MODE_USB_OFF:    /* ADC_JIG_USB_OFF */
+                /* PATH:AP_USB */
+                strcpy(cable_name, "JIG-USB-OFF");
+                path = CONTROL1_SW_USB;
+                break;
+        case MAX77693_MUIC_ADC_FACTORY_MODE_USB_ON:     /* ADC_JIG_USB_ON */
+                /* PATH:AP_USB */
+                strcpy(cable_name, "JIG-USB-ON");
+                path = CONTROL1_SW_USB;
+                break;
+        case MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF:   /* ADC_JIG_UART_OFF */
+                /* PATH:AP_UART */
+                strcpy(cable_name, "JIG-UART-OFF");
+                path = CONTROL1_SW_UART;
+                break;
+        }
+
+        ret = max77693_muic_set_path(info, path, attached);
+        if (ret < 0)
+                goto out;
+
+        extcon_set_cable_state(info->edev, cable_name, attached);
+out:
+        return ret;
+}
+
 static int max77693_muic_adc_handler(struct max77693_muic_info *info)
 {
         int cable_type;
@@ -474,10 +515,9 @@ static int max77693_muic_adc_handler(struct max77693_muic_info *info)
         case MAX77693_MUIC_ADC_FACTORY_MODE_USB_ON:
         case MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF:
                 /* JIG */
-                ret = max77693_muic_set_path(info, CONTROL1_SW_UART, attached);
+                ret = max77693_muic_jig_handler(info, cable_type, attached);
                 if (ret < 0)
                         goto out;
-                extcon_set_cable_state(info->edev, "JIG", attached);
                 break;
         case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON:
         case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: