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

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Date:   Mon, 13 Apr 2020 16:36:07 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Aishwarya R <aishwaryarj100@...il.com>
Cc:     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>,
        linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: adc: at91-adc: Use devm_platform_ioremap_resource

On Sun, 12 Apr 2020 19:26:42 +0530
Aishwarya R <aishwaryarj100@...il.com> wrote:

> 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>
Same comments as the previous patch.  Applied anyway (this time)
mostly because it's quicker for me than insisting on a v3.

Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to play with it.

Thanks,

Jonathan

> ---
>  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);
>