diff options
| author | Todd Poynor <toddpoynor@google.com> | 2012-07-13 13:30:55 -0700 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2012-07-23 14:22:02 +0530 |
| commit | 089a0c726149f07f2f8a431f8142af24342841da (patch) | |
| tree | 911d9dbba32038d540e45d4c9688e0560ab8b396 /drivers/power | |
| parent | be9ee03fcdb1907d0e6c355d9a3d4b18213bdcc9 (diff) | |
power: smb347: add POWER_SUPPLY_PROP_USB_OTG
Based on code from HongMin Son <hongmin.son@samsung.com>
Change-Id: I8b47ff41fb170aac60d1cbe5cf609fca72f8eb41
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: HongMin Son <hongmin.son@samsung.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/smb347-charger.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/power/smb347-charger.c b/drivers/power/smb347-charger.c index 7015b68a2e9e..f4296096bcda 100644 --- a/drivers/power/smb347-charger.c +++ b/drivers/power/smb347-charger.c @@ -86,6 +86,7 @@ #define CMD_A 0x30 #define CMD_A_CHG_ENABLED BIT(1) #define CMD_A_SUSPEND_ENABLED BIT(2) +#define CMD_A_OTG_ENABLE BIT(4) #define CMD_A_ALLOW_WRITE BIT(7) #define CMD_B 0x31 #define CMD_B_USB59_MODE BIT(1) @@ -140,6 +141,7 @@ struct smb347_charger { bool charging_enabled; unsigned int mains_current_limit; bool usb_hc_mode; + bool usb_otg_enabled; struct dentry *dentry; const struct smb347_charger_platform_data *pdata; }; @@ -1027,6 +1029,10 @@ static int smb347_usb_get_property(struct power_supply *psy, val->intval = smb->usb_hc_mode; return 0; + case POWER_SUPPLY_PROP_USB_OTG: + val->intval = smb->usb_otg_enabled; + return 0; + default: break; } @@ -1050,6 +1056,24 @@ static int smb347_usb_set_property(struct power_supply *psy, smb->usb_hc_mode = val->intval; break; + case POWER_SUPPLY_PROP_USB_OTG: + ret = smb347_read(smb, CMD_A); + + if (ret < 0) + return ret; + + if (val->intval) + ret |= CMD_A_OTG_ENABLE; + else + ret &= ~CMD_A_OTG_ENABLE; + + ret = smb347_write(smb, CMD_A, ret); + + if (ret >= 0) + smb->usb_otg_enabled = val->intval; + + break; + default: break; } @@ -1062,6 +1086,7 @@ static int smb347_usb_property_is_writeable(struct power_supply *psy, { switch (prop) { case POWER_SUPPLY_PROP_USB_HC: + case POWER_SUPPLY_PROP_USB_OTG: return 1; default: break; @@ -1073,6 +1098,7 @@ static int smb347_usb_property_is_writeable(struct power_supply *psy, static enum power_supply_property smb347_usb_properties[] = { POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_USB_HC, + POWER_SUPPLY_PROP_USB_OTG, }; static int smb347_battery_get_property(struct power_supply *psy, |