usb: dwc3: gadget: extract dwc3_gadget_get_irq()

Cleanup only, no functional changes.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index c692aaf..45a3325 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2871,6 +2871,39 @@ static irqreturn_t dwc3_interrupt(int irq, void *_evt)
        return dwc3_check_event_buf(evt);
 }
 
+static int dwc3_gadget_get_irq(struct dwc3 *dwc)
+{
+       struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
+       int irq;
+
+       irq = platform_get_irq_byname(dwc3_pdev, "peripheral");
+       if (irq > 0)
+               goto out;
+
+       if (irq == -EPROBE_DEFER)
+               goto out;
+
+       irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
+       if (irq > 0)
+               goto out;
+
+       if (irq == -EPROBE_DEFER)
+               goto out;
+
+       irq = platform_get_irq(dwc3_pdev, 0);
+       if (irq > 0)
+               goto out;
+
+       if (irq != -EPROBE_DEFER)
+               dev_err(dwc->dev, "missing peripheral IRQ\n");
+
+       if (!irq)
+               irq = -EINVAL;
+
+out:
+       return irq;
+}
+
 /**
  * dwc3_gadget_init - Initializes gadget related registers
  * @dwc: pointer to our controller context structure
@@ -2879,30 +2912,13 @@ static irqreturn_t dwc3_interrupt(int irq, void *_evt)
  */
 int dwc3_gadget_init(struct dwc3 *dwc)
 {
-       int ret, irq;
-       struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
+       int ret;
+       int irq;
 
-       irq = platform_get_irq_byname(dwc3_pdev, "peripheral");
-       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 peripheral IRQ\n");
-                               }
-                               if (!irq)
-                                       irq = -EINVAL;
-                               return irq;
-                       }
-               }
+       irq = dwc3_gadget_get_irq(dwc);
+       if (irq < 0) {
+               ret = irq;
+               goto err0;
        }
 
        dwc->irq_gadget = irq;