linux-kernel - [PATCH] pwm: imx27: use devm_platform_ioremap

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Message-ID: <1554095960-15638-1-git-send-email-Anson.Huang@nxp.com>
Date:   Mon, 1 Apr 2019 05:24:02 +0000
From:   Anson Huang <anson.huang@....com>
To:     "thierry.reding@...il.com" <thierry.reding@...il.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "linux-pwm@...r.kernel.org" <linux-pwm@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     dl-linux-imx <linux-imx@....com>
Subject: [PATCH] pwm: imx27: use devm_platform_ioremap_resource() to simplify
 code

Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 drivers/pwm/pwm-imx27.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c
index 8061306..434a351 100644
--- a/drivers/pwm/pwm-imx27.c
+++ b/drivers/pwm/pwm-imx27.c
@@ -291,7 +291,6 @@ MODULE_DEVICE_TABLE(of, pwm_imx27_dt_ids);
 static int pwm_imx27_probe(struct platform_device *pdev)
 {
 	struct pwm_imx27_chip *imx;
-	struct resource *r;
 
 	imx = devm_kzalloc(&pdev->dev, sizeof(*imx), GFP_KERNEL);
 	if (imx == NULL)
@@ -326,8 +325,7 @@ static int pwm_imx27_probe(struct platform_device *pdev)
 	imx->chip.of_xlate = of_pwm_xlate_with_flags;
 	imx->chip.of_pwm_n_cells = 3;
 
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	imx->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+	imx->mmio_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(imx->mmio_base))
 		return PTR_ERR(imx->mmio_base);
 
-- 
2.7.4