diff options
| author |   Chanwoo Choi <cw00.choi@samsung.com> | 2012-11-27 12:06:49 +0900 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2013-01-15 15:42:15 +0900 |
| commit | d0587eb794da221a5c210348abc8f6cceae93896 (patch) | |
| tree | 91d1cd08e0a182625b68eeb5ba6f92b46ce15917 /drivers | |
| parent | extcon: max77693: Add support MHL_TA cable for charging battery (diff) | |
| download | linux-dev-d0587eb794da221a5c210348abc8f6cceae93896.tar.xz linux-dev-d0587eb794da221a5c210348abc8f6cceae93896.zip | |
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: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/extcon/extcon-max77693.c | 52 |
1 files changed, 46 insertions, 6 deletions
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index 78dc7505b965..26ce4dfeda10 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -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 @@ out: 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: |