diff options
Diffstat (limited to 'drivers/usb/gadget/udc/atmel_usba_udc.c')
| -rw-r--r-- | drivers/usb/gadget/udc/atmel_usba_udc.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index 9342a3d24963..fa6793065c7c 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -1028,6 +1028,7 @@ usba_udc_set_selfpowered(struct usb_gadget *gadget, int is_selfpowered) return 0; } +static int atmel_usba_pullup(struct usb_gadget *gadget, int is_on); static int atmel_usba_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver); static int atmel_usba_stop(struct usb_gadget *gadget); @@ -1101,6 +1102,7 @@ static const struct usb_gadget_ops usba_udc_ops = { .get_frame = usba_udc_get_frame, .wakeup = usba_udc_wakeup, .set_selfpowered = usba_udc_set_selfpowered, + .pullup = atmel_usba_pullup, .udc_start = atmel_usba_start, .udc_stop = atmel_usba_stop, .match_ep = atmel_usba_match_ep, @@ -1957,6 +1959,24 @@ static irqreturn_t usba_vbus_irq_thread(int irq, void *devid) return IRQ_HANDLED; } +static int atmel_usba_pullup(struct usb_gadget *gadget, int is_on) +{ + struct usba_udc *udc = container_of(gadget, struct usba_udc, gadget); + unsigned long flags; + u32 ctrl; + + spin_lock_irqsave(&udc->lock, flags); + ctrl = usba_readl(udc, CTRL); + if (is_on) + ctrl &= ~USBA_DETACH; + else + ctrl |= USBA_DETACH; + usba_writel(udc, CTRL, ctrl); + spin_unlock_irqrestore(&udc->lock, flags); + + return 0; +} + static int atmel_usba_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver) { @@ -2097,7 +2117,6 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, { struct device_node *np = pdev->dev.of_node; const struct of_device_id *match; - struct device_node *pp; int i, ret; struct usba_ep *eps, *ep; const struct usba_udc_config *udc_config; @@ -2122,7 +2141,6 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, GPIOD_IN); if (fifo_mode == 0) { - pp = NULL; udc->num_ep = udc_config->num_ep; udc->configured_ep = 1; } else { @@ -2138,7 +2156,6 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, INIT_LIST_HEAD(&eps[0].ep.ep_list); - pp = NULL; i = 0; while (i < udc->num_ep) { const struct usba_ep_config *ep_cfg = &udc_config->config[i]; |