diff options
Diffstat (limited to 'drivers/usb/host/ohci-at91.c')
| -rw-r--r-- | drivers/usb/host/ohci-at91.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index ba3a46b78b7..95a9fec38e8 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -223,6 +223,9 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int if (port < 0 || port >= 2) return; + if (pdata->vbus_pin[port] <= 0) + return; + gpio_set_value(pdata->vbus_pin[port], !pdata->vbus_pin_inverted ^ enable); } @@ -231,6 +234,9 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port) if (port < 0 || port >= 2) return -EINVAL; + if (pdata->vbus_pin[port] <= 0) + return -EINVAL; + return gpio_get_value(pdata->vbus_pin[port]) ^ !pdata->vbus_pin_inverted; } |