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>

diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 78dc7505b965ad80da0e25f334266b4296100f14..26ce4dfeda10a707ddb53f3efabcb5fe2079baa9 100644 (file)
--- 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: