memory: tegra: mc: simplify platform_get_resource()

Use devm_platform_ioremap_resource() instead of platform_get_resource()
and devm_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220419142859.380566-5-krzysztof.kozlowski@linaro.org

drivers/memory/tegra/mc.c

@@ -716,7 +716,6 @@ del_provider:
 
 static int tegra_mc_probe(struct platform_device *pdev)
 {
-	struct resource *res;
 	struct tegra_mc *mc;
 	u64 mask;
 	int err;
@@ -741,8 +740,7 @@ static int tegra_mc_probe(struct platform_device *pdev)
 	/* length of MC tick in nanoseconds */
 	mc->tick = 30;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	mc->regs = devm_ioremap_resource(&pdev->dev, res);
+	mc->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mc->regs))
 		return PTR_ERR(mc->regs);