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>
 {
        struct lpc18xx_pwm_chip *lpc18xx_pwm;
        struct pwm_device *pwm;
-       struct resource *res;
        int ret, i;
        u64 val;
 
 
        lpc18xx_pwm->dev = &pdev->dev;
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       lpc18xx_pwm->base = devm_ioremap_resource(&pdev->dev, res);
+       lpc18xx_pwm->base = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(lpc18xx_pwm->base))
                return PTR_ERR(lpc18xx_pwm->base);