power: reset: gemini-poweroff: 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: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/reset/gemini-poweroff.c

@@ -91,7 +91,6 @@ static void gemini_poweroff(void)
 static int gemini_poweroff_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct resource *res;
 	struct gemini_powercon *gpw;
 	u32 val;
 	int irq;
@@ -101,8 +100,7 @@ static int gemini_poweroff_probe(struct platform_device *pdev)
 	if (!gpw)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	gpw->base = devm_ioremap_resource(dev, res);
+	gpw->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(gpw->base))
 		return PTR_ERR(gpw->base);