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path: root/drivers/usb
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Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/amd5536udc.c49
1 files changed, 30 insertions, 19 deletions
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index 77352ccc245e..fb0976643a2f 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -1213,7 +1213,12 @@ udc_queue(struct usb_ep *usbep, struct usb_request *usbreq, gfp_t gfp)
tmp &= AMD_UNMASK_BIT(ep->num);
writel(tmp, &dev->regs->ep_irqmsk);
}
- }
+ } else if (ep->in) {
+ /* enable ep irq */
+ tmp = readl(&dev->regs->ep_irqmsk);
+ tmp &= AMD_UNMASK_BIT(ep->num);
+ writel(tmp, &dev->regs->ep_irqmsk);
+ }
} else if (ep->dma) {
@@ -2005,18 +2010,17 @@ __acquires(dev->lock)
{
int tmp;
- /* empty queues and init hardware */
- udc_basic_init(dev);
- for (tmp = 0; tmp < UDC_EP_NUM; tmp++) {
- empty_req_queue(&dev->ep[tmp]);
- }
-
if (dev->gadget.speed != USB_SPEED_UNKNOWN) {
spin_unlock(&dev->lock);
driver->disconnect(&dev->gadget);
spin_lock(&dev->lock);
}
- /* init */
+
+ /* empty queues and init hardware */
+ udc_basic_init(dev);
+ for (tmp = 0; tmp < UDC_EP_NUM; tmp++)
+ empty_req_queue(&dev->ep[tmp]);
+
udc_setup_endpoints(dev);
}
@@ -2478,6 +2482,13 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix)
}
}
+ } else if (!use_dma && ep->in) {
+ /* disable interrupt */
+ tmp = readl(
+ &dev->regs->ep_irqmsk);
+ tmp |= AMD_BIT(ep->num);
+ writel(tmp,
+ &dev->regs->ep_irqmsk);
}
}
/* clear status bits */
@@ -3285,6 +3296,17 @@ static int udc_pci_probe(
goto finished;
}
+ spin_lock_init(&dev->lock);
+ /* udc csr registers base */
+ dev->csr = dev->virt_addr + UDC_CSR_ADDR;
+ /* dev registers base */
+ dev->regs = dev->virt_addr + UDC_DEVCFG_ADDR;
+ /* ep registers base */
+ dev->ep_regs = dev->virt_addr + UDC_EPREGS_ADDR;
+ /* fifo's base */
+ dev->rxfifo = (u32 __iomem *)(dev->virt_addr + UDC_RXFIFO_ADDR);
+ dev->txfifo = (u32 __iomem *)(dev->virt_addr + UDC_TXFIFO_ADDR);
+
if (request_irq(pdev->irq, udc_irq, IRQF_SHARED, name, dev) != 0) {
dev_dbg(&dev->pdev->dev, "request_irq(%d) fail\n", pdev->irq);
kfree(dev);
@@ -3337,7 +3359,6 @@ static int udc_probe(struct udc *dev)
udc_pollstall_timer.data = 0;
/* device struct setup */
- spin_lock_init(&dev->lock);
dev->gadget.ops = &udc_ops;
dev_set_name(&dev->gadget.dev, "gadget");
@@ -3346,16 +3367,6 @@ static int udc_probe(struct udc *dev)
dev->gadget.name = name;
dev->gadget.is_dualspeed = 1;
- /* udc csr registers base */
- dev->csr = dev->virt_addr + UDC_CSR_ADDR;
- /* dev registers base */
- dev->regs = dev->virt_addr + UDC_DEVCFG_ADDR;
- /* ep registers base */
- dev->ep_regs = dev->virt_addr + UDC_EPREGS_ADDR;
- /* fifo's base */
- dev->rxfifo = (u32 __iomem *)(dev->virt_addr + UDC_RXFIFO_ADDR);
- dev->txfifo = (u32 __iomem *)(dev->virt_addr + UDC_TXFIFO_ADDR);
-
/* init registers, interrupts, ... */
startup_registers(dev);