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Message-id: <561F0DE0.1070405@samsung.com>
Date:	Thu, 15 Oct 2015 11:22:24 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Roger Quadros <rogerq@...com>, linux-kernel@...r.kernel.org
Cc:	k.kozlowski@...sung.com, ckeepax@...nsource.wolfsonmicro.com,
	gregkh@...uxfoundation.org, ramakrishna.pallala@...el.com,
	patches@...nsource.wolfsonmicro.com, myungjoo.ham@...sung.com
Subject: Re: [PATCH v4] extcon: Modify the id and name of external connector

Hi Roger,

On 2015년 10월 14일 16:13, Roger Quadros wrote:
> Chanwoo,
> 
> On 08/10/15 12:24, Chanwoo Choi wrote:
>> This patch modifies the id and name of external connector with the
>> additional prefix to clarify both attribute and meaning of external
>> connector as following:
>> - EXTCON_CHG_* mean the charger connector.
>> - EXTCON_JACK_* mean the jack connector.
>> - EXTCON_DISP_* mean the display port connector.
>>
>> Following table show the new name of external connector with old name:
>> --------------------------------------------------
>> Old extcon name         | New extcon name        |
>> --------------------------------------------------
>> EXTCON_TA               | EXTCON_CHG_USB_DCP     |
>> EXTCON_CHARGE_DOWNSTREAM| EXTCON_CHG_USB_CDP     |
>> EXTCON_FAST_CHARGER     | EXTCON_CHG_USB_FAST    |
>> EXTCON_SLOW_CHARGER     | EXTCON_CHG_USB_SLOW    |
>> --------------------------------------------------
>> EXTCON_MICROPHONE       | EXTCON_JACK_MICROPHONE |
>> EXTCON_HEADPHONE        | EXTCON_JACK_HEADPHONE  |
>> EXTCON_LINE_IN          | EXTCON_JACK_LINE_IN    |
>> EXTCON_LINE_OUT         | EXTCON_JACK_LINE_OUT   |
>> EXTCON_VIDEO_IN         | EXTCON_JACK_VIDEO_IN   |
>> EXTCON_VIDEO_OUT        | EXTCON_JACK_VIDEO_OUT  |
>> EXTCON_SPDIF_IN         | EXTCON_JACK_SPDIF_IN   |
>> EXTCON_SPDIF_OUT        | EXTCON_JACK_SPDIF_OUT  |
>> --------------------------------------------------
>> EXTCON_HMDI             | EXTCON_DISP_HDMI       |
>> EXTCON_MHL              | EXTCON_DISP_MHL        |
>> EXTCON_DVI              | EXTCON_DISP_DVI        |
>> EXTCON_VGA              | EXTCON_DISP_VGA        |
>> --------------------------------------------------
>>
>> And, when altering the name of USB charger connector, EXTCON refers to the
>> "Battery Charging v1.2 Spec and Adopters Agreement"[1] to use the standard
>> name of USB charging port as following. Following name of USB charging port
>> are already used in power_supply subsystem. We chan check it on patch[2].
>> - EXTCON_CHG_USB_SDP	/* Standard Downstream Port */
>> - EXTCON_CHG_USB_DCP	/* Dedicated Charging Port */
>> - EXTCON_CHG_USB_CDP	/* Charging Downstream Port */
>> - EXTCON_CHG_USB_ACA	/* Accessory Charger Adapter */
>>
>> [1] www.usb.org/developers/docs/devclass_docs/BCv1.2_070312.zip
>> [2] commit 85efc8a18ced ("power_supply: Add types for USB chargers")
>>
>> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
>> [ckeepax: For the Arizona changes]
>> Acked-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
>> ---
>> Changes from v3:
>> (https://lkml.org/lkml/2015/10/6/984)
>> - Modify the name of fast/slow charger connector as following:
>> : EXTCON_CHG_USB_DCP_FAST -> EXTCON_CHG_USB_FAST
>> : EXTCON_CHG_USB_DCP_SLOW -> EXTCON_CHG_USB_SLOW
>> - Add EXTCON_CHG_USB_SDP to mean the charging connector of SDP (Standard
>>   Downstream Port)
>>
>> Changes from v2:
>> (https://lkml.org/lkml/2015/10/6/239)
>> - Remove the EXTCON_CHG_USB type to remove the possible confusion according to
>>   Roger's comment and drop patch2 about EXTCON_CHG_USB.
>> - Fix the warning issue provided by scripts/checkpatch.pl
>>
>> Changes from v1:
>> (https://lkml.org/lkml/2015/10/3/304)
>> - Add acked tag by Charles Keepax for arizona changes
>> - Modify the name of USB charger connector as following:
>>  : EXTCON_CHG_USB_FAST -> EXTCON_CHG_USB_DCP_FAST
>>  : EXTCON_CHG_USB_SLOW -> EXTCON_CHG_USB_DCP_SLOW
>> - Add the missing EXTCON_CHG_USB_ACA charger connector
>> - Add one more patch to support the EXTCON_CHG_USB when SDP port is
>>   connected or not
>>
>>  drivers/extcon/extcon-arizona.c  | 18 ++++++------
>>  drivers/extcon/extcon-axp288.c   | 12 ++++----
>>  drivers/extcon/extcon-max14577.c | 17 +++++------
>>  drivers/extcon/extcon-max77693.c | 32 +++++++++++----------
>>  drivers/extcon/extcon-max77843.c | 27 +++++++++--------
>>  drivers/extcon/extcon-max8997.c  | 21 +++++++-------
>>  drivers/extcon/extcon-rt8973a.c  |  4 +--
>>  drivers/extcon/extcon-sm5502.c   |  4 +--
>>  drivers/extcon/extcon.c          | 61 ++++++++++++++++++++-------------------
>>  include/linux/extcon.h           | 62 +++++++++++++++++++++++-----------------
>>  10 files changed, 139 insertions(+), 119 deletions(-)
>>
>> diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
>> index a1ab0a56b798..e4890dd4fefd 100644
>> --- a/drivers/extcon/extcon-arizona.c
>> +++ b/drivers/extcon/extcon-arizona.c
>> @@ -137,9 +137,9 @@ static const int arizona_micd_levels[] = {
>>  
>>  static const unsigned int arizona_cable[] = {
>>  	EXTCON_MECHANICAL,
>> -	EXTCON_MICROPHONE,
>> -	EXTCON_HEADPHONE,
>> -	EXTCON_LINE_OUT,
>> +	EXTCON_JACK_MICROPHONE,
>> +	EXTCON_JACK_HEADPHONE,
>> +	EXTCON_JACK_LINE_OUT,
>>  	EXTCON_NONE,
>>  };
>>  
>> @@ -600,7 +600,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
>>  	struct arizona_extcon_info *info = data;
>>  	struct arizona *arizona = info->arizona;
>>  	int id_gpio = arizona->pdata.hpdet_id_gpio;
>> -	unsigned int report = EXTCON_HEADPHONE;
>> +	unsigned int report = EXTCON_JACK_HEADPHONE;
>>  	int ret, reading;
>>  	bool mic = false;
>>  
>> @@ -645,9 +645,9 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
>>  
>>  	/* Report high impedence cables as line outputs */
>>  	if (reading >= 5000)
>> -		report = EXTCON_LINE_OUT;
>> +		report = EXTCON_JACK_LINE_OUT;
>>  	else
>> -		report = EXTCON_HEADPHONE;
>> +		report = EXTCON_JACK_HEADPHONE;
>>  
>>  	ret = extcon_set_cable_state_(info->edev, report, true);
>>  	if (ret != 0)
>> @@ -732,7 +732,7 @@ err:
>>  			   ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
>>  
>>  	/* Just report headphone */
>> -	ret = extcon_set_cable_state_(info->edev, EXTCON_HEADPHONE, true);
>> +	ret = extcon_set_cable_state_(info->edev, EXTCON_JACK_HEADPHONE, true);
>>  	if (ret != 0)
>>  		dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
>>  
>> @@ -789,7 +789,7 @@ err:
>>  			   ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
>>  
>>  	/* Just report headphone */
>> -	ret = extcon_set_cable_state_(info->edev, EXTCON_HEADPHONE, true);
>> +	ret = extcon_set_cable_state_(info->edev, EXTCON_JACK_HEADPHONE, true);
>>  	if (ret != 0)
>>  		dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
>>  
>> @@ -915,7 +915,7 @@ static void arizona_micd_detect(struct work_struct *work)
>>  		arizona_identify_headphone(info);
>>  
>>  		ret = extcon_set_cable_state_(info->edev,
>> -					      EXTCON_MICROPHONE, true);
>> +					      EXTCON_JACK_MICROPHONE, true);
>>  		if (ret != 0)
>>  			dev_err(arizona->dev, "Headset report failed: %d\n",
>>  				ret);
>> diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
>> index 9668d6a94e38..fd55c2f2080a 100644
>> --- a/drivers/extcon/extcon-axp288.c
>> +++ b/drivers/extcon/extcon-axp288.c
>> @@ -102,9 +102,9 @@ enum axp288_extcon_irq {
>>  };
>>  
>>  static const unsigned int axp288_extcon_cables[] = {
>> -	EXTCON_SLOW_CHARGER,
>> -	EXTCON_CHARGE_DOWNSTREAM,
>> -	EXTCON_FAST_CHARGER,
>> +	EXTCON_CHG_USB_SDP,
>> +	EXTCON_CHG_USB_CDP,
>> +	EXTCON_CHG_USB_DCP,
>>  	EXTCON_NONE,
>>  };
>>  
>> @@ -192,18 +192,18 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
>>  		dev_dbg(info->dev, "sdp cable is connecetd\n");
>>  		notify_otg = true;
>>  		notify_charger = true;
>> -		cable = EXTCON_SLOW_CHARGER;
>> +		cable = EXTCON_CHG_USB_SDP;
>>  		break;
>>  	case DET_STAT_CDP:
>>  		dev_dbg(info->dev, "cdp cable is connecetd\n");
>>  		notify_otg = true;
>>  		notify_charger = true;
>> -		cable = EXTCON_CHARGE_DOWNSTREAM;
>> +		cable = EXTCON_CHG_USB_CDP;
>>  		break;
>>  	case DET_STAT_DCP:
>>  		dev_dbg(info->dev, "dcp cable is connecetd\n");
>>  		notify_charger = true;
>> -		cable = EXTCON_FAST_CHARGER;
>> +		cable = EXTCON_CHG_USB_DCP;
>>  		break;
>>  	default:
>>  		dev_warn(info->dev,
>> diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
>> index df0659d98e5a..601dbd996487 100644
>> --- a/drivers/extcon/extcon-max14577.c
>> +++ b/drivers/extcon/extcon-max14577.c
>> @@ -150,10 +150,10 @@ enum max14577_muic_acc_type {
>>  
>>  static const unsigned int max14577_extcon_cable[] = {
>>  	EXTCON_USB,
>> -	EXTCON_TA,
>> -	EXTCON_FAST_CHARGER,
>> -	EXTCON_SLOW_CHARGER,
>> -	EXTCON_CHARGE_DOWNSTREAM,
>> +	EXTCON_CHG_USB_DCP,
>> +	EXTCON_CHG_USB_FAST,
>> +	EXTCON_CHG_USB_SLOW,
>> +	EXTCON_CHG_USB_CDP,
>>  	EXTCON_JIG,
>>  	EXTCON_NONE,
>>  };
>> @@ -456,18 +456,19 @@ static int max14577_muic_chg_handler(struct max14577_muic_info *info)
>>  		extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
>>  		break;
>>  	case MAX14577_CHARGER_TYPE_DEDICATED_CHG:
>> -		extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
>> +					attached);
>>  		break;
>>  	case MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT:
>> -		extcon_set_cable_state_(info->edev, EXTCON_CHARGE_DOWNSTREAM,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_CDP,
>>  					attached);
>>  		break;
>>  	case MAX14577_CHARGER_TYPE_SPECIAL_500MA:
>> -		extcon_set_cable_state_(info->edev, EXTCON_SLOW_CHARGER,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SLOW,
>>  					attached);
>>  		break;
>>  	case MAX14577_CHARGER_TYPE_SPECIAL_1A:
>> -		extcon_set_cable_state_(info->edev, EXTCON_FAST_CHARGER,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_FAST,
>>  					attached);
>>  		break;
>>  	case MAX14577_CHARGER_TYPE_NONE:
>> diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
>> index 35b9e118b2fb..44c499e1beee 100644
>> --- a/drivers/extcon/extcon-max77693.c
>> +++ b/drivers/extcon/extcon-max77693.c
>> @@ -204,11 +204,11 @@ enum max77693_muic_acc_type {
>>  static const unsigned int max77693_extcon_cable[] = {
>>  	EXTCON_USB,
>>  	EXTCON_USB_HOST,
>> -	EXTCON_TA,
>> -	EXTCON_FAST_CHARGER,
>> -	EXTCON_SLOW_CHARGER,
>> -	EXTCON_CHARGE_DOWNSTREAM,
>> -	EXTCON_MHL,
>> +	EXTCON_CHG_USB_DCP,
>> +	EXTCON_CHG_USB_FAST,
>> +	EXTCON_CHG_USB_SLOW,
>> +	EXTCON_CHG_USB_CDP,
>> +	EXTCON_DISP_MHL,
>>  	EXTCON_JIG,
>>  	EXTCON_DOCK,
>>  	EXTCON_NONE,
>> @@ -505,7 +505,7 @@ static int max77693_muic_dock_handler(struct max77693_muic_info *info,
>>  			return ret;
>>  
>>  		extcon_set_cable_state_(info->edev, EXTCON_DOCK, attached);
>> -		extcon_set_cable_state_(info->edev, EXTCON_MHL, attached);
>> +		extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL, attached);
>>  		goto out;
>>  	case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE:	/* Dock-Desk */
>>  		dock_id = EXTCON_DOCK;
>> @@ -605,7 +605,7 @@ static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info)
>>  	case MAX77693_MUIC_GND_MHL:
>>  	case MAX77693_MUIC_GND_MHL_VB:
>>  		/* MHL or MHL with USB/TA cable */
>> -		extcon_set_cable_state_(info->edev, EXTCON_MHL, attached);
>> +		extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL, attached);
>>  		break;
>>  	default:
>>  		dev_err(info->dev, "failed to detect %s cable of gnd type\n",
>> @@ -801,10 +801,11 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
>>  			 * - Support charging through micro-usb port without
>>  			 *   data connection
>>  			 */
>> -			extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
>> +			extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
>> +						attached);
>>  			if (!cable_attached)
>> -				extcon_set_cable_state_(info->edev, EXTCON_MHL,
>> -							cable_attached);
>> +				extcon_set_cable_state_(info->edev,
>> +					EXTCON_DISP_MHL, cable_attached);
>>  			break;
>>  		}
>>  
>> @@ -862,7 +863,7 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
>>  
>>  			extcon_set_cable_state_(info->edev, EXTCON_DOCK,
>>  						attached);
>> -			extcon_set_cable_state_(info->edev, EXTCON_MHL,
>> +			extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL,
>>  						attached);
>>  			break;
>>  		}
>> @@ -901,20 +902,21 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
>>  			break;
>>  		case MAX77693_CHARGER_TYPE_DEDICATED_CHG:
>>  			/* Only TA cable */
>> -			extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
>> +			extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
>> +						attached);
>>  			break;
>>  		}
>>  		break;
>>  	case MAX77693_CHARGER_TYPE_DOWNSTREAM_PORT:
>> -		extcon_set_cable_state_(info->edev, EXTCON_CHARGE_DOWNSTREAM,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_CDP,
>>  					attached);
>>  		break;
>>  	case MAX77693_CHARGER_TYPE_APPLE_500MA:
>> -		extcon_set_cable_state_(info->edev, EXTCON_SLOW_CHARGER,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SLOW,
>>  					attached);
>>  		break;
>>  	case MAX77693_CHARGER_TYPE_APPLE_1A_2A:
>> -		extcon_set_cable_state_(info->edev, EXTCON_FAST_CHARGER,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_FAST,
>>  					attached);
>>  		break;
>>  	case MAX77693_CHARGER_TYPE_DEAD_BATTERY:
>> diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
>> index fdd928542c19..9f9ea334399c 100644
>> --- a/drivers/extcon/extcon-max77843.c
>> +++ b/drivers/extcon/extcon-max77843.c
>> @@ -122,11 +122,11 @@ enum max77843_muic_charger_type {
>>  static const unsigned int max77843_extcon_cable[] = {
>>  	EXTCON_USB,
>>  	EXTCON_USB_HOST,
>> -	EXTCON_TA,
>> -	EXTCON_CHARGE_DOWNSTREAM,
>> -	EXTCON_FAST_CHARGER,
>> -	EXTCON_SLOW_CHARGER,
>> -	EXTCON_MHL,
>> +	EXTCON_CHG_USB_DCP,
>> +	EXTCON_CHG_USB_CDP,
>> +	EXTCON_CHG_USB_FAST,
>> +	EXTCON_CHG_USB_SLOW,
>> +	EXTCON_DISP_MHL,
>>  	EXTCON_JIG,
>>  	EXTCON_NONE,
>>  };
>> @@ -355,7 +355,7 @@ static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info)
>>  		if (ret < 0)
>>  			return ret;
>>  
>> -		extcon_set_cable_state_(info->edev, EXTCON_MHL, attached);
>> +		extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL, attached);
>>  		break;
>>  	default:
>>  		dev_err(info->dev, "failed to detect %s accessory(gnd:0x%x)\n",
>> @@ -494,7 +494,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
>>  		if (ret < 0)
>>  			return ret;
>>  
>> -		extcon_set_cable_state_(info->edev, EXTCON_CHARGE_DOWNSTREAM,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_CDP,
>>  					attached);
>>  		break;
>>  	case MAX77843_MUIC_CHG_DEDICATED:
>> @@ -504,7 +504,8 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
>>  		if (ret < 0)
>>  			return ret;
>>  
>> -		extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
>> +					attached);
>>  		break;
>>  	case MAX77843_MUIC_CHG_SPECIAL_500MA:
>>  		ret = max77843_muic_set_path(info,
>> @@ -513,7 +514,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
>>  		if (ret < 0)
>>  			return ret;
>>  
>> -		extcon_set_cable_state_(info->edev, EXTCON_SLOW_CHARGER,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SLOW,
>>  					attached);
>>  		break;
>>  	case MAX77843_MUIC_CHG_SPECIAL_1A:
>> @@ -523,7 +524,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
>>  		if (ret < 0)
>>  			return ret;
>>  
>> -		extcon_set_cable_state_(info->edev, EXTCON_FAST_CHARGER,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_FAST,
>>  					attached);
>>  		break;
>>  	case MAX77843_MUIC_CHG_GND:
>> @@ -532,9 +533,11 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
>>  
>>  		/* Charger cable on MHL accessory is attach or detach */
>>  		if (gnd_type == MAX77843_MUIC_GND_MHL_VB)
>> -			extcon_set_cable_state_(info->edev, EXTCON_TA, true);
>> +			extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
>> +						true);
>>  		else if (gnd_type == MAX77843_MUIC_GND_MHL)
>> -			extcon_set_cable_state_(info->edev, EXTCON_TA, false);
>> +			extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
>> +						false);
>>  		break;
>>  	case MAX77843_MUIC_CHG_NONE:
>>  		break;
>> diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
>> index 7b1ef200b121..b2b13b3dce14 100644
>> --- a/drivers/extcon/extcon-max8997.c
>> +++ b/drivers/extcon/extcon-max8997.c
>> @@ -148,11 +148,11 @@ struct max8997_muic_info {
>>  static const unsigned int max8997_extcon_cable[] = {
>>  	EXTCON_USB,
>>  	EXTCON_USB_HOST,
>> -	EXTCON_TA,
>> -	EXTCON_FAST_CHARGER,
>> -	EXTCON_SLOW_CHARGER,
>> -	EXTCON_CHARGE_DOWNSTREAM,
>> -	EXTCON_MHL,
>> +	EXTCON_CHG_USB_DCP,
>> +	EXTCON_CHG_USB_FAST,
>> +	EXTCON_CHG_USB_SLOW,
>> +	EXTCON_CHG_USB_CDP,
>> +	EXTCON_DISP_MHL,
>>  	EXTCON_DOCK,
>>  	EXTCON_JIG,
>>  	EXTCON_NONE,
>> @@ -403,7 +403,7 @@ static int max8997_muic_adc_handler(struct max8997_muic_info *info)
>>  			return ret;
>>  		break;
>>  	case MAX8997_MUIC_ADC_MHL:
>> -		extcon_set_cable_state_(info->edev, EXTCON_MHL, attached);
>> +		extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL, attached);
>>  		break;
>>  	case MAX8997_MUIC_ADC_FACTORY_MODE_USB_OFF:
>>  	case MAX8997_MUIC_ADC_FACTORY_MODE_USB_ON:
>> @@ -486,18 +486,19 @@ static int max8997_muic_chg_handler(struct max8997_muic_info *info)
>>  		}
>>  		break;
>>  	case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT:
>> -		extcon_set_cable_state_(info->edev, EXTCON_CHARGE_DOWNSTREAM,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_CDP,
>>  					attached);
>>  		break;
>>  	case MAX8997_CHARGER_TYPE_DEDICATED_CHG:
>> -		extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
>> +					attached);
>>  		break;
>>  	case MAX8997_CHARGER_TYPE_500MA:
>> -		extcon_set_cable_state_(info->edev, EXTCON_SLOW_CHARGER,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SLOW,
>>  					attached);
>>  		break;
>>  	case MAX8997_CHARGER_TYPE_1A:
>> -		extcon_set_cable_state_(info->edev, EXTCON_FAST_CHARGER,
>> +		extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_FAST,
>>  					attached);
>>  		break;
>>  	default:
>> diff --git a/drivers/extcon/extcon-rt8973a.c b/drivers/extcon/extcon-rt8973a.c
>> index 1bc3737ea01c..36bf1d63791c 100644
>> --- a/drivers/extcon/extcon-rt8973a.c
>> +++ b/drivers/extcon/extcon-rt8973a.c
>> @@ -93,7 +93,7 @@ static struct reg_data rt8973a_reg_data[] = {
>>  static const unsigned int rt8973a_extcon_cable[] = {
>>  	EXTCON_USB,
>>  	EXTCON_USB_HOST,
>> -	EXTCON_TA,
>> +	EXTCON_CHG_USB_DCP,
>>  	EXTCON_JIG,
>>  	EXTCON_NONE,
>>  };
>> @@ -333,7 +333,7 @@ static int rt8973a_muic_cable_handler(struct rt8973a_muic_info *info,
>>  		con_sw = DM_DP_SWITCH_USB;
>>  		break;
>>  	case RT8973A_MUIC_ADC_TA:
>> -		id = EXTCON_TA;
>> +		id = EXTCON_CHG_USB_DCP;
>>  		con_sw = DM_DP_SWITCH_OPEN;
>>  		break;
>>  	case RT8973A_MUIC_ADC_FACTORY_MODE_BOOT_OFF_USB:
>> diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
>> index 2945091bfd0e..7aac3cc7efd7 100644
>> --- a/drivers/extcon/extcon-sm5502.c
>> +++ b/drivers/extcon/extcon-sm5502.c
>> @@ -95,7 +95,7 @@ static struct reg_data sm5502_reg_data[] = {
>>  static const unsigned int sm5502_extcon_cable[] = {
>>  	EXTCON_USB,
>>  	EXTCON_USB_HOST,
>> -	EXTCON_TA,
>> +	EXTCON_CHG_USB_DCP,
>>  	EXTCON_NONE,
>>  };
>>  
>> @@ -389,7 +389,7 @@ static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
>>  		vbus_sw	= VBUSIN_SWITCH_VBUSOUT_WITH_USB;
>>  		break;
>>  	case SM5502_MUIC_ADC_OPEN_TA:
>> -		id	= EXTCON_TA;
>> +		id	= EXTCON_CHG_USB_DCP;
>>  		con_sw	= DM_DP_SWITCH_OPEN;
>>  		vbus_sw	= VBUSIN_SWITCH_VBUSOUT;
>>  		break;
>> diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
>> index 8dd0af1d50bc..f345d492d4a1 100644
>> --- a/drivers/extcon/extcon.c
>> +++ b/drivers/extcon/extcon.c
>> @@ -39,37 +39,40 @@
>>  #define CABLE_NAME_MAX		30
>>  
>>  static const char *extcon_name[] =  {
>> -	[EXTCON_NONE]		= "NONE",
>> +	[EXTCON_NONE]			= "EXTCON_NONE",
>>  
>>  	/* USB external connector */
>> -	[EXTCON_USB]		= "USB",
>> -	[EXTCON_USB_HOST]	= "USB-HOST",
>> -
>> -	/* Charger external connector */
>> -	[EXTCON_TA]		= "TA",
>> -	[EXTCON_FAST_CHARGER]	= "FAST-CHARGER",
>> -	[EXTCON_SLOW_CHARGER]	= "SLOW-CHARGER",
>> -	[EXTCON_CHARGE_DOWNSTREAM] = "CHARGE-DOWNSTREAM",
>> -
>> -	/* Audio/Video external connector */
>> -	[EXTCON_LINE_IN]	= "LINE-IN",
>> -	[EXTCON_LINE_OUT]	= "LINE-OUT",
>> -	[EXTCON_MICROPHONE]	= "MICROPHONE",
>> -	[EXTCON_HEADPHONE]	= "HEADPHONE",
>> -
>> -	[EXTCON_HDMI]		= "HDMI",
>> -	[EXTCON_MHL]		= "MHL",
>> -	[EXTCON_DVI]		= "DVI",
>> -	[EXTCON_VGA]		= "VGA",
>> -	[EXTCON_SPDIF_IN]	= "SPDIF-IN",
>> -	[EXTCON_SPDIF_OUT]	= "SPDIF-OUT",
>> -	[EXTCON_VIDEO_IN]	= "VIDEO-IN",
>> -	[EXTCON_VIDEO_OUT]	= "VIDEO-OUT",
>> -
>> -	/* Etc external connector */
>> -	[EXTCON_DOCK]		= "DOCK",
>> -	[EXTCON_JIG]		= "JIG",
>> -	[EXTCON_MECHANICAL]	= "MECHANICAL",
>> +	[EXTCON_USB]			= "EXTCON_USB",
> 
> Should the name string be "USB-PERIPHERAL"?

I think 'PERIPHERAL' is not necessary. The extcon name is
used for only end user using the platform developer.
'PERIPHERAL' might cause the confusion to end user.

> 
>> +	[EXTCON_USB_HOST]		= "EXTCON_USB_HOST",
> 
> Why prefix EXTCON and change hyphen to underscore?
> Wasn't the original version i.e. "USB-HOST" better?

Agreee.

> 
> Why the change in the name strings? Who is the end user of the name string?
> If the end use is just for information to a human user then the human readable
> format makes more sense. i.e. "MHL" or "MICROPHONE" makes more sense than
> "EXTCON_DISP_MHL" or "EXTCON_JACK_MICROPHONE"

Your comment make sense. I'll not modify the name of external connector.
I'll use the existing name.

[snip]

Thanks,
Chanwoo Choi
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