media: stih-cec: Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/cec/platform/sti/stih-cec.c

···
 static int stih_cec_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct resource *res;
 	struct stih_cec *cec;
 	struct device *hdmi_dev;
 	int ret;
···
 
 	cec->dev = dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	cec->regs = devm_ioremap_resource(dev, res);
+	cec->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(cec->regs))
 		return PTR_ERR(cec->regs);