usb: dwc3: host: Fix broken XHCI host

[karo-tx-linux.git] / drivers / usb / dwc3 / host.c

diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index 67f90d7c989de566b1101b324f9999dc595bfb79..f6533c68fed1e0dcc73b1af4b2f7948a6313fb7e 100644 (file)
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -23,7 +23,48 @@ int dwc3_host_init(struct dwc3 *dwc)
 {
        struct property_entry   props[2];
        struct platform_device  *xhci;
-       int                     ret;
+       int                     ret, irq;
+       struct resource         *res;
+       struct platform_device  *dwc3_pdev = to_platform_device(dwc->dev);
+
+       irq = platform_get_irq_byname(dwc3_pdev, "host");
+       if (irq == -EPROBE_DEFER)
+               return irq;
+
+       if (irq <= 0) {
+               irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
+               if (irq == -EPROBE_DEFER)
+                       return irq;
+
+               if (irq <= 0) {
+                       irq = platform_get_irq(dwc3_pdev, 0);
+                       if (irq <= 0) {
+                               if (irq != -EPROBE_DEFER) {
+                                       dev_err(dwc->dev,
+                                               "missing host IRQ\n");
+                               }
+                               if (!irq)
+                                       irq = -EINVAL;
+                               return irq;
+                       } else {
+                               res = platform_get_resource(dwc3_pdev,
+                                                           IORESOURCE_IRQ, 0);
+                       }
+               } else {
+                       res = platform_get_resource_byname(dwc3_pdev,
+                                                          IORESOURCE_IRQ,
+                                                          "dwc_usb3");
+               }
+
+       } else {
+               res = platform_get_resource_byname(dwc3_pdev, IORESOURCE_IRQ,
+                                                  "host");
+       }
+
+       dwc->xhci_resources[1].start = irq;
+       dwc->xhci_resources[1].end = irq;
+       dwc->xhci_resources[1].flags = res->flags;
+       dwc->xhci_resources[1].name = res->name;
 
        xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
        if (!xhci) {