linux-kernel - [PATCH net-next v2] thermal: st: Use devm_platform_get_and_ioremap

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Message-ID: <20210605120205.2459578-1-yangyingliang@huawei.com>
Date:   Sat, 5 Jun 2021 20:02:05 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>
CC:     <rui.zhang@...el.com>, <daniel.lezcano@...aro.org>,
        <amitk@...nel.org>
Subject: [PATCH net-next v2] thermal: st: Use devm_platform_get_and_ioremap_resource()

Use devm_platform_get_and_ioremap_resource() to simplify
code and remove error message which within
devm_platform_get_and_ioremap_resource() already.

Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
v2:
 remove 'res'
---
 drivers/thermal/st/st_thermal_memmap.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/thermal/st/st_thermal_memmap.c b/drivers/thermal/st/st_thermal_memmap.c
index a0114452d11f..d68596c40be9 100644
--- a/drivers/thermal/st/st_thermal_memmap.c
+++ b/drivers/thermal/st/st_thermal_memmap.c
@@ -119,19 +119,10 @@ static int st_mmap_regmap_init(struct st_thermal_sensor *sensor)
 {
 	struct device *dev = sensor->dev;
 	struct platform_device *pdev = to_platform_device(dev);
-	struct resource *res;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "no memory resources defined\n");
-		return -ENODEV;
-	}
-
-	sensor->mmio_base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(sensor->mmio_base)) {
-		dev_err(dev, "failed to remap IO\n");
+	sensor->mmio_base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
+	if (IS_ERR(sensor->mmio_base))
 		return PTR_ERR(sensor->mmio_base);
-	}
 
 	sensor->regmap = devm_regmap_init_mmio(dev, sensor->mmio_base,
 				&st_416mpe_regmap_config);
-- 
2.25.1