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Date:	Thu, 30 Apr 2015 11:00:21 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>, linux-kernel@...r.kernel.org
Cc:	jaewon02.kim@...sung.com, myungjoo.ham@...sung.com,
	kyungmin.park@...sung.com
Subject: Re: [PATCH 1/4] extcon: Unify the jig cable names on RT8963 and
 MAX14577/77693/77843

On 27.04.2015 21:31, Chanwoo Choi wrote:
> This patch change the name of various jig cables as 'JIG' because the name of
> various jig cables are strange and ambiguous on user-space aspect. They include
> the different information of either USB and UART state. It is never important
> for user-space process. This patch unifies the name of jig cables as following:
> - JIG-USB-ON   -->|--> JIG
> - JIG-USB-OFF  -->|
> - JIG-UART-ON  -->|
> - JIG-UART-OFF -->|
>
> Cc: Jaewon Kim <jaewon02.kim@...sung.com>
> Cc: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
>   drivers/extcon/extcon-max14577.c | 19 +++----------------
>   drivers/extcon/extcon-max77693.c | 23 +++--------------------
>   drivers/extcon/extcon-max77843.c | 39 ++++++++++++++-------------------------
>   drivers/extcon/extcon-rt8973a.c  | 22 +++++-----------------
>   4 files changed, 25 insertions(+), 78 deletions(-)
>
> diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
> index 3823aa4..6d5febe 100644
> --- a/drivers/extcon/extcon-max14577.c
> +++ b/drivers/extcon/extcon-max14577.c
> @@ -155,10 +155,7 @@ enum {
>   	EXTCON_CABLE_FAST_CHARGER,
>   	EXTCON_CABLE_SLOW_CHARGER,
>   	EXTCON_CABLE_CHARGE_DOWNSTREAM,
> -	EXTCON_CABLE_JIG_USB_ON,
> -	EXTCON_CABLE_JIG_USB_OFF,
> -	EXTCON_CABLE_JIG_UART_OFF,
> -	EXTCON_CABLE_JIG_UART_ON,
> +	EXTCON_CABLE_JIG,
>
>   	_EXTCON_CABLE_NUM,
>   };
> @@ -169,10 +166,7 @@ static const char *max14577_extcon_cable[] = {
>   	[EXTCON_CABLE_FAST_CHARGER]		= "Fast-charger",
>   	[EXTCON_CABLE_SLOW_CHARGER]		= "Slow-charger",
>   	[EXTCON_CABLE_CHARGE_DOWNSTREAM]	= "Charge-downstream",
> -	[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_JIG_UART_ON]		= "JIG-UART-ON",
> +	[EXTCON_CABLE_JIG]			= "JIG",
>
>   	NULL,
>   };
> @@ -348,7 +342,6 @@ static int max14577_muic_get_cable_type(struct max14577_muic_info *info,
>   static int max14577_muic_jig_handler(struct max14577_muic_info *info,
>   		int cable_type, bool attached)
>   {
> -	char cable_name[32];
>   	int ret = 0;
>   	u8 path = CTRL1_SW_OPEN;
>
> @@ -358,18 +351,12 @@ static int max14577_muic_jig_handler(struct max14577_muic_info *info,
>
>   	switch (cable_type) {
>   	case MAX14577_MUIC_ADC_FACTORY_MODE_USB_OFF:	/* ADC_JIG_USB_OFF */
> -		/* PATH:AP_USB */
> -		strcpy(cable_name, "JIG-USB-OFF");
> -		path = CTRL1_SW_USB;
> -		break;
>   	case MAX14577_MUIC_ADC_FACTORY_MODE_USB_ON:	/* ADC_JIG_USB_ON */
>   		/* PATH:AP_USB */
> -		strcpy(cable_name, "JIG-USB-ON");
>   		path = CTRL1_SW_USB;
>   		break;
>   	case MAX14577_MUIC_ADC_FACTORY_MODE_UART_OFF:	/* ADC_JIG_UART_OFF */
>   		/* PATH:AP_UART */
> -		strcpy(cable_name, "JIG-UART-OFF");
>   		path = CTRL1_SW_UART;
>   		break;
>   	default:
> @@ -382,7 +369,7 @@ static int max14577_muic_jig_handler(struct max14577_muic_info *info,
>   	if (ret < 0)
>   		return ret;
>
> -	extcon_set_cable_state(info->edev, cable_name, attached);
> +	extcon_set_cable_state(info->edev, "JIG", attached);
>
>   	return 0;
>   }
> diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
> index a66bec8..1079321 100644
> --- a/drivers/extcon/extcon-max77693.c
> +++ b/drivers/extcon/extcon-max77693.c
> @@ -209,10 +209,7 @@ 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_JIG_UART_ON,
> +	EXTCON_CABLE_JIG,
>   	EXTCON_CABLE_DOCK_SMART,
>   	EXTCON_CABLE_DOCK_DESK,
>   	EXTCON_CABLE_DOCK_AUDIO,
> @@ -229,10 +226,7 @@ static 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_JIG_UART_ON]		= "JIG-UART-ON",
> +	[EXTCON_CABLE_JIG]			= "JIG",
>   	[EXTCON_CABLE_DOCK_SMART]		= "Dock-Smart",
>   	[EXTCON_CABLE_DOCK_DESK]		= "Dock-Desk",
>   	[EXTCON_CABLE_DOCK_AUDIO]		= "Dock-Audio",
> @@ -642,7 +636,6 @@ static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info)
>   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;
>
> @@ -652,23 +645,13 @@ static int max77693_muic_jig_handler(struct max77693_muic_info *info,
>
>   	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;
>   	case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON:	/* ADC_JIG_UART_ON */
>   		/* PATH:AP_UART */
> -		strcpy(cable_name, "JIG-UART-ON");
>   		path = CONTROL1_SW_UART;
>   		break;
>   	default:
> @@ -681,7 +664,7 @@ static int max77693_muic_jig_handler(struct max77693_muic_info *info,
>   	if (ret < 0)
>   		return ret;
>
> -	extcon_set_cable_state(info->edev, cable_name, attached);
> +	extcon_set_cable_state(info->edev, "JIG", attached);
>
>   	return 0;
>   }
> diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
> index 8db6a92..f1e688b 100644
> --- a/drivers/extcon/extcon-max77843.c
> +++ b/drivers/extcon/extcon-max77843.c
> @@ -127,10 +127,7 @@ enum {
>   	MAX77843_CABLE_SLOW_CHARGER,
>   	MAX77843_CABLE_MHL,
>   	MAX77843_CABLE_MHL_TA,
> -	MAX77843_CABLE_JIG_USB_ON,
> -	MAX77843_CABLE_JIG_USB_OFF,
> -	MAX77843_CABLE_JIG_UART_ON,
> -	MAX77843_CABLE_JIG_UART_OFF,
> +	MAX77843_CABLE_JIG,
>
>   	MAX77843_CABLE_NUM,
>   };
> @@ -144,10 +141,7 @@ static const char *max77843_extcon_cable[] = {
>   	[MAX77843_CABLE_SLOW_CHARGER]		= "SLOW-CHARGER",
>   	[MAX77843_CABLE_MHL]			= "MHL",
>   	[MAX77843_CABLE_MHL_TA]			= "MHL-TA",
> -	[MAX77843_CABLE_JIG_USB_ON]		= "JIG-USB-ON",
> -	[MAX77843_CABLE_JIG_USB_OFF]		= "JIG-USB-OFF",
> -	[MAX77843_CABLE_JIG_UART_ON]		= "JIG-UART-ON",
> -	[MAX77843_CABLE_JIG_UART_OFF]		= "JIG-UART-OFF",
> +	[MAX77843_CABLE_JIG]			= "JIG",
>   };
>
>   struct max77843_muic_irq {
> @@ -385,36 +379,31 @@ static int max77843_muic_jig_handler(struct max77843_muic_info *info,
>   		int cable_type, bool attached)
>   {
>   	int ret;
> +	u8 path = CTRL1_SW_OPEN;
>
>   	dev_dbg(info->dev, "external connector is %s (adc:0x%02x)\n",
>   			attached ? "attached" : "detached", cable_type);
>
>   	switch (cable_type) {
>   	case MAX77843_MUIC_ADC_FACTORY_MODE_USB_OFF:
> -		ret = max77843_muic_set_path(info, CONTROL1_SW_USB, attached);
> -		if (ret < 0)
> -			return ret;
> -		extcon_set_cable_state(info->edev, "JIG-USB-OFF", attached);
> -		break;
>   	case MAX77843_MUIC_ADC_FACTORY_MODE_USB_ON:
> -		ret = max77843_muic_set_path(info, CONTROL1_SW_USB, attached);
> -		if (ret < 0)
> -			return ret;
> -		extcon_set_cable_state(info->edev, "JIG-USB-ON", attached);
> +		path = CONTROL1_SW_USB;
>   		break;
>   	case MAX77843_MUIC_ADC_FACTORY_MODE_UART_OFF:
> -		ret = max77843_muic_set_path(info, CONTROL1_SW_UART, attached);
> -		if (ret < 0)
> -			return ret;
> -		extcon_set_cable_state(info->edev, "JIG-UART-OFF", attached);
> +		path = CONTROL1_SW_UART;
>   		break;
>   	default:
> -		ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached);
> -		if (ret < 0)
> -			return ret;
> -		break;
> +		dev_err(info->dev, "failed to detect %s jig cable\n",
> +			attached ? "attached" : "detached");
> +		return -EINVAL;

The logic for this default case is changed and it is not related to the 
patch (unification of JIG). Could you split it into separate patch?

Rest looks fine.

Best regards,
Krzysztof
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