bus: tegra-gmi: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/bus/tegra-gmi.c

@@ -211,7 +211,6 @@ static int tegra_gmi_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct tegra_gmi *gmi;
-	struct resource *res;
 	int err;
 
 	gmi = devm_kzalloc(dev, sizeof(*gmi), GFP_KERNEL);
@@ -221,8 +220,7 @@ static int tegra_gmi_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, gmi);
 	gmi->dev = dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	gmi->base = devm_ioremap_resource(dev, res);
+	gmi->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(gmi->base))
 		return PTR_ERR(gmi->base);