Hi,

On 06/10/15 14:21, Chanwoo Choi wrote:
> The SDP (Standard Downstream Port) is one of various USB Charging ports. The 
> SDP
> supports both the data transmission and the charging through USB connector at
> the same time. So, the EXTCON framework defines two connector type for USB SDP
> connector as following:
> - EXTCON_USB means the USB cable for data transmission.
> - EXTCON_CHG_USB means the USB charger cable for battery charging.
> 
> This patch add the support of EXTCON_CHG_USB when USB SDP is attached or
> detached.

I didn't understand why this change is needed. SDP, EXTCON_USB and 
EXTCON_CHG_USB
are the same thing. no?

cheers,
-roger

> 
> Signed-off-by: Chanwoo Choi <cw00.c...@samsung.com>
> ---
>  drivers/extcon/extcon-max14577.c |  2 ++
>  drivers/extcon/extcon-max77693.c | 11 ++++++++++-
>  drivers/extcon/extcon-max77843.c |  2 ++
>  drivers/extcon/extcon-max8997.c  |  2 ++
>  drivers/extcon/extcon-palmas.c   |  3 +++
>  drivers/extcon/extcon-rt8973a.c  |  3 +++
>  drivers/extcon/extcon-sm5502.c   |  3 +++
>  drivers/extcon/extcon-usb-gpio.c |  3 +++
>  8 files changed, 28 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/extcon/extcon-max14577.c 
> b/drivers/extcon/extcon-max14577.c
> index 15c2dcc73fc6..f262dad10560 100644
> --- a/drivers/extcon/extcon-max14577.c
> +++ b/drivers/extcon/extcon-max14577.c
> @@ -150,6 +150,7 @@ enum max14577_muic_acc_type {
>  
>  static const unsigned int max14577_extcon_cable[] = {
>       EXTCON_USB,
> +     EXTCON_CHG_USB,
>       EXTCON_CHG_USB_DCP,
>       EXTCON_CHG_USB_DCP_FAST,
>       EXTCON_CHG_USB_DCP_SLOW,
> @@ -454,6 +455,7 @@ static int max14577_muic_chg_handler(struct 
> max14577_muic_info *info)
>                       return ret;
>  
>               extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
> +             extcon_set_cable_state_(info->edev, EXTCON_CHG_USB, attached);
>               break;
>       case MAX14577_CHARGER_TYPE_DEDICATED_CHG:
>               extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
> diff --git a/drivers/extcon/extcon-max77693.c 
> b/drivers/extcon/extcon-max77693.c
> index 95c707b1fcee..ee63718de787 100644
> --- a/drivers/extcon/extcon-max77693.c
> +++ b/drivers/extcon/extcon-max77693.c
> @@ -204,6 +204,7 @@ enum max77693_muic_acc_type {
>  static const unsigned int max77693_extcon_cable[] = {
>       EXTCON_USB,
>       EXTCON_USB_HOST,
> +     EXTCON_CHG_USB,
>       EXTCON_CHG_USB_DCP,
>       EXTCON_CHG_USB_DCP_FAST,
>       EXTCON_CHG_USB_DCP_SLOW,
> @@ -512,8 +513,11 @@ static int max77693_muic_dock_handler(struct 
> max77693_muic_info *info,
>               break;
>       case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD:         /* Dock-Audio */
>               dock_id = EXTCON_DOCK;
> -             if (!attached)
> +             if (!attached) {
>                       extcon_set_cable_state_(info->edev, EXTCON_USB, false);
> +                     extcon_set_cable_state_(info->edev, EXTCON_CHG_USB,
> +                                             false);
> +             }
>               break;
>       default:
>               dev_err(info->dev, "failed to detect %s dock device\n",
> @@ -601,6 +605,7 @@ static int max77693_muic_adc_ground_handler(struct 
> max77693_muic_info *info)
>               if (ret < 0)
>                       return ret;
>               extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
> +             extcon_set_cable_state_(info->edev, EXTCON_CHG_USB, attached);
>               break;
>       case MAX77693_MUIC_GND_MHL:
>       case MAX77693_MUIC_GND_MHL_VB:
> @@ -830,6 +835,8 @@ static int max77693_muic_chg_handler(struct 
> max77693_muic_info *info)
>                        */
>                       extcon_set_cable_state_(info->edev, EXTCON_USB,
>                                               attached);
> +                     extcon_set_cable_state_(info->edev, EXTCON_CHG_USB,
> +                                             attached);
>  
>                       if (!cable_attached)
>                               extcon_set_cable_state_(info->edev, EXTCON_DOCK,
> @@ -899,6 +906,8 @@ static int max77693_muic_chg_handler(struct 
> max77693_muic_info *info)
>  
>                       extcon_set_cable_state_(info->edev, EXTCON_USB,
>                                               attached);
> +                     extcon_set_cable_state_(info->edev, EXTCON_CHG_USB,
> +                                             attached);
>                       break;
>               case MAX77693_CHARGER_TYPE_DEDICATED_CHG:
>                       /* Only TA cable */
> diff --git a/drivers/extcon/extcon-max77843.c 
> b/drivers/extcon/extcon-max77843.c
> index 97aebe5d67a6..5bfd4a5ec9c4 100644
> --- a/drivers/extcon/extcon-max77843.c
> +++ b/drivers/extcon/extcon-max77843.c
> @@ -122,6 +122,7 @@ enum max77843_muic_charger_type {
>  static const unsigned int max77843_extcon_cable[] = {
>       EXTCON_USB,
>       EXTCON_USB_HOST,
> +     EXTCON_CHG_USB,
>       EXTCON_CHG_USB_DCP,
>       EXTCON_CHG_USB_CDP,
>       EXTCON_CHG_USB_DCP_FAST,
> @@ -486,6 +487,7 @@ static int max77843_muic_chg_handler(struct 
> max77843_muic_info *info)
>                       return ret;
>  
>               extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
> +             extcon_set_cable_state_(info->edev, EXTCON_CHG_USB, attached);
>               break;
>       case MAX77843_MUIC_CHG_DOWNSTREAM:
>               ret = max77843_muic_set_path(info,
> diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
> index 8dbec5febdb6..3e8c6ab546b6 100644
> --- a/drivers/extcon/extcon-max8997.c
> +++ b/drivers/extcon/extcon-max8997.c
> @@ -148,6 +148,7 @@ struct max8997_muic_info {
>  static const unsigned int max8997_extcon_cable[] = {
>       EXTCON_USB,
>       EXTCON_USB_HOST,
> +     EXTCON_CHG_USB,
>       EXTCON_CHG_USB_DCP,
>       EXTCON_CHG_USB_DCP_FAST,
>       EXTCON_CHG_USB_DCP_SLOW,
> @@ -334,6 +335,7 @@ static int max8997_muic_handle_usb(struct 
> max8997_muic_info *info,
>               break;
>       case MAX8997_USB_DEVICE:
>               extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
> +             extcon_set_cable_state_(info->edev, EXTCON_CHG_USB, attached);
>               break;
>       default:
>               dev_err(info->dev, "failed to detect %s usb cable\n",
> diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
> index 93c30a885740..a1e984ff4398 100644
> --- a/drivers/extcon/extcon-palmas.c
> +++ b/drivers/extcon/extcon-palmas.c
> @@ -37,6 +37,7 @@
>  static const unsigned int palmas_extcon_cable[] = {
>       EXTCON_USB,
>       EXTCON_USB_HOST,
> +     EXTCON_CHG_USB,
>       EXTCON_NONE,
>  };
>  
> @@ -62,6 +63,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void 
> *_palmas_usb)
>               if (palmas_usb->linkstat != PALMAS_USB_STATE_VBUS) {
>                       palmas_usb->linkstat = PALMAS_USB_STATE_VBUS;
>                       extcon_set_cable_state_(edev, EXTCON_USB, true);
> +                     extcon_set_cable_state_(edev, EXTCON_CHG_USB, true);
>                       dev_info(palmas_usb->dev, "USB cable is attached\n");
>               } else {
>                       dev_dbg(palmas_usb->dev,
> @@ -71,6 +73,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void 
> *_palmas_usb)
>               if (palmas_usb->linkstat == PALMAS_USB_STATE_VBUS) {
>                       palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
>                       extcon_set_cable_state_(edev, EXTCON_USB, false);
> +                     extcon_set_cable_state_(edev, EXTCON_CHG_USB, false);
>                       dev_info(palmas_usb->dev, "USB cable is detached\n");
>               } else {
>                       dev_dbg(palmas_usb->dev,
> diff --git a/drivers/extcon/extcon-rt8973a.c b/drivers/extcon/extcon-rt8973a.c
> index 36bf1d63791c..64c7d8a90a11 100644
> --- a/drivers/extcon/extcon-rt8973a.c
> +++ b/drivers/extcon/extcon-rt8973a.c
> @@ -93,6 +93,7 @@ static struct reg_data rt8973a_reg_data[] = {
>  static const unsigned int rt8973a_extcon_cable[] = {
>       EXTCON_USB,
>       EXTCON_USB_HOST,
> +     EXTCON_CHG_USB,
>       EXTCON_CHG_USB_DCP,
>       EXTCON_JIG,
>       EXTCON_NONE,
> @@ -398,6 +399,8 @@ static int rt8973a_muic_cable_handler(struct 
> rt8973a_muic_info *info,
>  
>       /* Change the state of external accessory */
>       extcon_set_cable_state_(info->edev, id, attached);
> +     if (id == EXTCON_USB)
> +             extcon_set_cable_state_(info->edev, EXTCON_CHG_USB, attached);
>  
>       return 0;
>  }
> diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
> index 7aac3cc7efd7..24031759d306 100644
> --- a/drivers/extcon/extcon-sm5502.c
> +++ b/drivers/extcon/extcon-sm5502.c
> @@ -95,6 +95,7 @@ static struct reg_data sm5502_reg_data[] = {
>  static const unsigned int sm5502_extcon_cable[] = {
>       EXTCON_USB,
>       EXTCON_USB_HOST,
> +     EXTCON_CHG_USB,
>       EXTCON_CHG_USB_DCP,
>       EXTCON_NONE,
>  };
> @@ -411,6 +412,8 @@ static int sm5502_muic_cable_handler(struct 
> sm5502_muic_info *info,
>  
>       /* Change the state of external accessory */
>       extcon_set_cable_state_(info->edev, id, attached);
> +     if (id == EXTCON_USB)
> +             extcon_set_cable_state_(info->edev, EXTCON_CHG_USB, attached);
>  
>       return 0;
>  }
> diff --git a/drivers/extcon/extcon-usb-gpio.c 
> b/drivers/extcon/extcon-usb-gpio.c
> index 2b2fecffb1ad..ae8e3df0b5a6 100644
> --- a/drivers/extcon/extcon-usb-gpio.c
> +++ b/drivers/extcon/extcon-usb-gpio.c
> @@ -43,6 +43,7 @@ struct usb_extcon_info {
>  static const unsigned int usb_extcon_cable[] = {
>       EXTCON_USB,
>       EXTCON_USB_HOST,
> +     EXTCON_CHG_USB,
>       EXTCON_NONE,
>  };
>  
> @@ -63,12 +64,14 @@ static void usb_extcon_detect_cable(struct work_struct 
> *work)
>                */
>               extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, false);
>               extcon_set_cable_state_(info->edev, EXTCON_USB, true);
> +             extcon_set_cable_state_(info->edev, EXTCON_CHG_USB, true);
>       } else {
>               /*
>                * ID = 0 means USB HOST cable attached.
>                * As we don't have event for USB peripheral cable detached,
>                * we simulate USB peripheral detach here.
>                */
> +             extcon_set_cable_state_(info->edev, EXTCON_CHG_USB, false);
>               extcon_set_cable_state_(info->edev, EXTCON_USB, false);
>               extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, true);
>       }
> 
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