drivers: use dev_read_addr_ptr when cast to pointer

The fdt_addr_t and phys_addr_t size have been decoupled. A 32bit CPU
can expect 64-bit data from the device tree parser, so use
dev_read_addr_ptr instead of the dev_read_addr function in the
various files in the drivers directory that cast to a pointer.
As we are there also streamline the error response to -EINVAL on return.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/phy/allwinner/phy-sun50i-usb3.c b/drivers/phy/allwinner/phy-sun50i-usb3.c
index e5a3d2d..609d9d4 100644
--- a/drivers/phy/allwinner/phy-sun50i-usb3.c
+++ b/drivers/phy/allwinner/phy-sun50i-usb3.c
@@ -149,9 +149,9 @@
 		return ret;
 	}
 
-	priv->regs = (void __iomem *)dev_read_addr(dev);
-	if (IS_ERR(priv->regs))
-		return PTR_ERR(priv->regs);
+	priv->regs = dev_read_addr_ptr(dev);
+	if (!priv->regs)
+		return -EINVAL;
 
 	return 0;
 }