Avoid local boilerplate.
Identified by coccinelle
CHECK   drivers/iio/adc/lpc18xx_adc.c
drivers/iio/adc/lpc18xx_adc.c:137:1-10: WARNING: Use devm_platform_ioremap_resource for adc -> base
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Joachim Eastwood <manabian@gmail.com>
 {
        struct iio_dev *indio_dev;
        struct lpc18xx_adc *adc;
-       struct resource *res;
        unsigned int clkdiv;
        unsigned long rate;
        int ret;
        adc->dev = &pdev->dev;
        mutex_init(&adc->lock);
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       adc->base = devm_ioremap_resource(&pdev->dev, res);
+       adc->base = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(adc->base))
                return PTR_ERR(adc->base);