linux-kernel - [PATCH] iio: dac: stm32-dac: Make use of the helper function devm_platform_ioremap

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Message-ID: <20210908105638.1525-1-caihuoqing@baidu.com>
Date:   Wed, 8 Sep 2021 18:56:38 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        <linux-iio@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] 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@...du.com>
---
 drivers/iio/dac/stm32-dac-core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/iio/dac/stm32-dac-core.c b/drivers/iio/dac/stm32-dac-core.c
index 906436780347..9a6a68b11b2a 100644
--- 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);
 
-- 
2.25.1