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Commit d0587eb7 authored by Chanwoo Choi's avatar Chanwoo Choi
Browse files

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: default avatarChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: default avatarMyungjoo Ham <myungjoo.ham@samsung.com>
parent 06bed0af

drivers/extcon/extcon-max77693.c

+46 −6
Original line number Diff line number Diff line
@@ -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 @@ static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info) 
	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: