linux-kernel - [PATCH] iio: adc: at91-adc: Use devm_platform_ioremap

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Date:   Sun, 12 Apr 2020 19:26:42 +0530
From:   Aishwarya R <aishwaryarj100@...il.com>
To:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Richard Fontana <rfontana@...hat.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Aishwarya R <aishwaryarj100@...il.com>,
        linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] iio: adc: at91-adc: Use devm_platform_ioremap_resource

From: Aishwarya Ramakrishnan <aishwaryarj100@...il.com>

Use the helper function that wraps the calls to
platform_get_resource() and devm_ioremap_resource()
together. It reduces boilerplate and suggested by coccinelle.

Signed-off-by: Aishwarya Ramakrishnan <aishwaryarj100@...il.com>
---
 drivers/iio/adc/at91_adc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index abe99856c823..0368b6dc6d60 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -1152,7 +1152,6 @@ static int at91_adc_probe(struct platform_device *pdev)
 	int ret;
 	struct iio_dev *idev;
 	struct at91_adc_state *st;
-	struct resource *res;
 	u32 reg;
 
 	idev = devm_iio_device_alloc(&pdev->dev, sizeof(struct at91_adc_state));
@@ -1182,9 +1181,7 @@ static int at91_adc_probe(struct platform_device *pdev)
 	if (st->irq < 0)
 		return -ENODEV;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	st->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	st->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(st->reg_base))
 		return PTR_ERR(st->reg_base);
 
-- 
2.17.1