ARM: samsung: Use devm_platform_ioremap_resource() to simplify code

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

Signed-off-by: Shengju Zhang <[e-mail]>
Signed-off-by: Tang Bin <[e-mail]>
Signed-off-by: Krzysztof Kozlowski <[e-mail]>

arch/arm/plat-samsung/adc.c

···
 {
 	struct device *dev = &pdev->dev;
 	struct adc_device *adc;
-	struct resource *regs;
 	enum s3c_cpu_type cpu = platform_get_device_id(pdev)->driver_data;
 	int ret;
 	unsigned tmp;
···
 		return PTR_ERR(adc->clk);
 	}
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	adc->regs = devm_ioremap_resource(dev, regs);
+	adc->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(adc->regs))
 		return PTR_ERR(adc->regs);