diff options
Diffstat (limited to 'drivers/usb/host/ohci-at91.c')
| -rw-r--r-- | drivers/usb/host/ohci-at91.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 13ebeca8e73e..7841b0aa4072 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -223,7 +223,7 @@ static void __devexit usb_hcd_at91_remove(struct usb_hcd *hcd, /*-------------------------------------------------------------------------*/ static int __devinit -ohci_at91_start (struct usb_hcd *hcd) +ohci_at91_reset (struct usb_hcd *hcd) { struct at91_usbh_data *board = hcd->self.controller->platform_data; struct ohci_hcd *ohci = hcd_to_ohci (hcd); @@ -233,6 +233,14 @@ ohci_at91_start (struct usb_hcd *hcd) return ret; ohci->num_ports = board->ports; + return 0; +} + +static int __devinit +ohci_at91_start (struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + int ret; if ((ret = ohci_run(ohci)) < 0) { err("can't start %s", hcd->self.bus_name); @@ -418,6 +426,7 @@ static const struct hc_driver ohci_at91_hc_driver = { /* * basic lifecycle operations */ + .reset = ohci_at91_reset, .start = ohci_at91_start, .stop = ohci_stop, .shutdown = ohci_shutdown, @@ -457,7 +466,8 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data) /* From the GPIO notifying the over-current situation, find * out the corresponding port */ at91_for_each_port(port) { - if (gpio_to_irq(pdata->overcurrent_pin[port]) == irq) { + if (gpio_is_valid(pdata->overcurrent_pin[port]) && + gpio_to_irq(pdata->overcurrent_pin[port]) == irq) { gpio = pdata->overcurrent_pin[port]; break; } @@ -560,6 +570,16 @@ static int __devinit ohci_hcd_at91_drv_probe(struct platform_device *pdev) if (pdata) { at91_for_each_port(i) { + /* + * do not configure PIO if not in relation with + * real USB port on board + */ + if (i >= pdata->ports) { + pdata->vbus_pin[i] = -EINVAL; + pdata->overcurrent_pin[i] = -EINVAL; + break; + } + if (!gpio_is_valid(pdata->vbus_pin[i])) continue; gpio = pdata->vbus_pin[i]; |