pwm: lpc32xx: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-lpc32xx.c

@@ -98,7 +98,6 @@ static const struct pwm_ops lpc32xx_pwm_ops = {
 static int lpc32xx_pwm_probe(struct platform_device *pdev)
 {
 	struct lpc32xx_pwm_chip *lpc32xx;
-	struct resource *res;
 	int ret;
 	u32 val;
 
@@ -106,8 +105,7 @@ static int lpc32xx_pwm_probe(struct platform_device *pdev)
 	if (!lpc32xx)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	lpc32xx->base = devm_ioremap_resource(&pdev->dev, res);
+	lpc32xx->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(lpc32xx->base))
 		return PTR_ERR(lpc32xx->base);