iio: dac: stm32-dac: 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 <caihuoqing@baidu.com>
Link: https://lore.kernel.org/r/20210908105638.1525-1-caihuoqing@baidu.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/dac/stm32-dac-core.c b/drivers/iio/dac/stm32-dac-core.c
index 9064367..9a6a68b 100644 (file)
--- a/drivers/iio/dac/stm32-dac-core.c
+++ b/drivers/iio/dac/stm32-dac-core.c
@@ -90,7 +90,6 @@ static int stm32_dac_probe(struct platform_device *pdev)
        const struct stm32_dac_cfg *cfg;
        struct stm32_dac_priv *priv;
        struct regmap *regmap;
-       struct resource *res;
        void __iomem *mmio;
        struct reset_control *rst;
        int ret;
@@ -106,8 +105,7 @@ static int stm32_dac_probe(struct platform_device *pdev)
        cfg = (const struct stm32_dac_cfg *)
                of_match_device(dev->driver->of_match_table, dev)->data;
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       mmio = devm_ioremap_resource(dev, res);
+       mmio = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(mmio))
                return PTR_ERR(mmio);