gpio: htc-egpio: use devm_platform_ioremap_resource()

There's no need to use the nocache variant of ioremap(). Switch to
using devm_platform_ioremap_resource().
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-htc-egpio.c

@@ -281,14 +281,9 @@ static int __init egpio_probe(struct platform_device *pdev)
 		ei->chained_irq = res->start;
 
 	/* Map egpio chip into virtual address space. */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
+	ei->base_addr = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(ei->base_addr))
 		goto fail;
-	ei->base_addr = devm_ioremap_nocache(&pdev->dev, res->start,
-					     resource_size(res));
-	if (!ei->base_addr)
-		goto fail;
-	pr_debug("EGPIO phys=%08x virt=%p\n", (u32)res->start, ei->base_addr);
 
 	if ((pdata->bus_width != 16) && (pdata->bus_width != 32))
 		goto fail;