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Message-ID: <561E00AD.50500@ti.com>
Date:	Wed, 14 Oct 2015 10:13:49 +0300
From:	Roger Quadros <rogerq@...com>
To:	Chanwoo Choi <cw00.choi@...sung.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

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"?

> +	[EXTCON_USB_HOST]		= "EXTCON_USB_HOST",

Why prefix EXTCON and change hyphen to underscore?
Wasn't the original version i.e. "USB-HOST" better?

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"

> +
> +	/* Charging external connector */
> +	[EXTCON_CHG_USB_SDP]		= "EXTCON_CHG_USB_SDP",
> +	[EXTCON_CHG_USB_DCP]		= "EXTCON_CHG_USB_DCP",
> +	[EXTCON_CHG_USB_CDP]		= "EXTCON_CHG_USB_CDP",
> +	[EXTCON_CHG_USB_ACA]		= "EXTCON_CHG_USB_ACA",
> +	[EXTCON_CHG_USB_FAST]		= "EXTCON_CHG_USB_FAST",
> +	[EXTCON_CHG_USB_SLOW]		= "EXTCON_CHG_USB_SLOW",


> +
> +	/* Jack external connector */
> +	[EXTCON_JACK_MICROPHONE]	= "EXTCON_JACK_MICROPHONE",
> +	[EXTCON_JACK_HEADPHONE]		= "EXTCON_JACK_HEADPHONE",
> +	[EXTCON_JACK_LINE_IN]		= "EXTCON_JACK_LINE_IN",
> +	[EXTCON_JACK_LINE_OUT]		= "EXTCON_JACK_LINE_OUT",
> +	[EXTCON_JACK_VIDEO_IN]		= "EXTCON_JACK_VIDEO_IN",
> +	[EXTCON_JACK_VIDEO_OUT]		= "EXTCON_JACK_VIDEO_OUT",
> +	[EXTCON_JACK_SPDIF_IN]		= "EXTCON_JACK_SPDIF_IN",
> +	[EXTCON_JACK_SPDIF_OUT]		= "EXTCON_JACK_SPDIF_OUT",
> +
> +	/* Display external connector */
> +	[EXTCON_DISP_HDMI]		= "EXTCON_DISP_HDMI",
> +	[EXTCON_DISP_MHL]		= "EXTCON_DISP_MHL",
> +	[EXTCON_DISP_DVI]		= "EXTCON_DISP_DVI",
> +	[EXTCON_DISP_VGA]		= "EXTCON_DISP_VGA",
> +
> +	/* Miscellaneous external connector */
> +	[EXTCON_DOCK]			= "EXTCON_DOCK",
> +	[EXTCON_JIG]			= "EXTCON_JIG",
> +	[EXTCON_MECHANICAL]		= "EXTCON_MECHANICAL",
>  
>  	NULL,
>  };
> diff --git a/include/linux/extcon.h b/include/linux/extcon.h
> index c0f8c4fc5d45..7abf674c388c 100644
> --- a/include/linux/extcon.h
> +++ b/include/linux/extcon.h
> @@ -31,32 +31,42 @@
>  /*
>   * Define the unique id of supported external connectors
>   */
> -#define EXTCON_NONE			0
> -
> -#define EXTCON_USB			1	/* USB connector */
> -#define EXTCON_USB_HOST			2
> -
> -#define EXTCON_TA			3	/* Charger connector */
> -#define EXTCON_FAST_CHARGER		4
> -#define EXTCON_SLOW_CHARGER		5
> -#define EXTCON_CHARGE_DOWNSTREAM	6
> -
> -#define EXTCON_LINE_IN			7	/* Audio/Video connector */
> -#define EXTCON_LINE_OUT			8
> -#define EXTCON_MICROPHONE		9
> -#define EXTCON_HEADPHONE		10
> -#define EXTCON_HDMI			11
> -#define EXTCON_MHL			12
> -#define EXTCON_DVI			13
> -#define EXTCON_VGA			14
> -#define EXTCON_SPDIF_IN			15
> -#define EXTCON_SPDIF_OUT		16
> -#define EXTCON_VIDEO_IN			17
> -#define EXTCON_VIDEO_OUT		18
> -
> -#define EXTCON_DOCK			19	/* Misc connector */
> -#define EXTCON_JIG			20
> -#define EXTCON_MECHANICAL		21
> +#define EXTCON_NONE		0
> +
> +/* USB external connector */
> +#define EXTCON_USB		1
> +#define EXTCON_USB_HOST		2
> +
> +/* Charging external connector */
> +#define EXTCON_CHG_USB_SDP	5	/* Standard Downstream Port */
> +#define EXTCON_CHG_USB_DCP	6	/* Dedicated Charging Port */
> +#define EXTCON_CHG_USB_CDP	7	/* Charging Downstream Port */
> +#define EXTCON_CHG_USB_ACA	8	/* Accessory Charger Adapter */
> +#define EXTCON_CHG_USB_FAST	9
> +#define EXTCON_CHG_USB_SLOW	10
> +
> +/* Jack external connector */
> +#define EXTCON_JACK_MICROPHONE	20
> +#define EXTCON_JACK_HEADPHONE	21
> +#define EXTCON_JACK_LINE_IN	22
> +#define EXTCON_JACK_LINE_OUT	23
> +#define EXTCON_JACK_VIDEO_IN	24
> +#define EXTCON_JACK_VIDEO_OUT	25
> +#define EXTCON_JACK_SPDIF_IN	26	/* Sony Philips Digital InterFace */
> +#define EXTCON_JACK_SPDIF_OUT	27
> +
> +/* Display external connector */
> +#define EXTCON_DISP_HDMI	40	/* High-Definition Multimedia Interface */
> +#define EXTCON_DISP_MHL		41	/* Mobile High-Definition Link */
> +#define EXTCON_DISP_DVI		42	/* Digital Visual Interface */
> +#define EXTCON_DISP_VGA		43	/* Video Graphics Array */
> +
> +/* Miscellaneous external connector */
> +#define EXTCON_DOCK		60
> +#define EXTCON_JIG		61
> +#define EXTCON_MECHANICAL	62
> +
> +#define EXTCON_NUM		63
>  
>  struct extcon_cable;
>  
> 

cheers,
-roger
--
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