usb: isp1760: Pass resource pointer to isp1760_register

The function takes quite a few arguments, passing the resource pointer
instead of the start address and length simplifies it a bit.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/host/isp1760-hcd.c

@@ -2211,9 +2211,8 @@ void isp1760_deinit_kmem_cache(void)
 	kmem_cache_destroy(urb_listitem_cachep);
 }
 
-int isp1760_register(phys_addr_t res_start, resource_size_t res_len, int irq,
-		     unsigned long irqflags, struct device *dev,
-		     unsigned int devflags)
+int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
+		     struct device *dev, unsigned int devflags)
 {
 	struct usb_hcd *hcd;
 	struct isp1760_hcd *priv;
@@ -2239,15 +2238,15 @@ int isp1760_register(phys_addr_t res_start, resource_size_t res_len, int irq,
 	}
 
 	init_memory(priv);
-	hcd->regs = ioremap(res_start, res_len);
+	hcd->regs = ioremap(mem->start, resource_size(mem));
 	if (!hcd->regs) {
 		ret = -EIO;
 		goto err_put;
 	}
 
 	hcd->irq = irq;
-	hcd->rsrc_start = res_start;
-	hcd->rsrc_len = res_len;
+	hcd->rsrc_start = mem->start;
+	hcd->rsrc_len = resource_size(mem);
 
 	ret = usb_add_hcd(hcd, irq, irqflags);
 	if (ret)

drivers/usb/host/isp1760-hcd.h

@@ -2,9 +2,8 @@
 #define _ISP1760_HCD_H_
 
 /* exports for if */
-int isp1760_register(phys_addr_t res_start, resource_size_t res_len, int irq,
-		     unsigned long irqflags, struct device *dev,
-		     unsigned int devflags);
+int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
+		     struct device *dev, unsigned int devflags);
 void isp1760_unregister(struct device *dev);
 
 int isp1760_init_kmem_once(void);

drivers/usb/host/isp1760-if.c

@@ -133,8 +133,8 @@ static int isp1761_pci_probe(struct pci_dev *dev,
 	writel(reg_data, iobase + PLX_INT_CSR_REG);
 
 	dev->dev.dma_mask = NULL;
-	ret_status = isp1760_register(pci_mem_phy0, memlength, dev->irq,
-				      IRQF_SHARED, &dev->dev, devflags);
+	ret_status = isp1760_register(&dev->resource[3], dev->irq, IRQF_SHARED,
+				      &dev->dev, devflags);
 	if (ret_status < 0)
 		goto cleanup3;
 
@@ -257,8 +257,8 @@ static int isp1760_plat_probe(struct platform_device *pdev)
 			devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
 	}
 
-	ret = isp1760_register(mem_res->start, mem_size, irq_res->start,
-			       irqflags, &pdev->dev, devflags);
+	ret = isp1760_register(mem_res, irq_res->start, irqflags, &pdev->dev,
+			       devflags);
 	if (ret < 0)
 		goto cleanup;