usb: dwc3: core: switch over to devm_ioremap_resource()

use the new devm_ioremap_resource() on core.c

Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index df3723a..25d374c 100644 (file)
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -389,23 +389,15 @@ static int dwc3_probe(struct platform_device *pdev)
        dwc->xhci_resources[0].flags = res->flags;
        dwc->xhci_resources[0].name = res->name;
 
+       res->start += DWC3_GLOBALS_REGS_START;
+
         /*
          * Request memory region but exclude xHCI regs,
          * since it will be requested by the xhci-plat driver.
          */
-       res = devm_request_mem_region(dev, res->start + DWC3_GLOBALS_REGS_START,
-                       resource_size(res) - DWC3_GLOBALS_REGS_START,
-                       dev_name(dev));
-       if (!res) {
-               dev_err(dev, "can't request mem region\n");
-               return -ENOMEM;
-       }
-
-       regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
-       if (!regs) {
-               dev_err(dev, "ioremap failed\n");
-               return -ENOMEM;
-       }
+       regs = devm_ioremap_resource(dev, res);
+       if (IS_ERR(regs))
+               return PTR_ERR(regs);
 
        if (node) {
                dwc->maximum_speed = of_usb_get_maximum_speed(node);