linux-kernel - Re: [PATCH] iio: ep93xx: Make use of the helper function devm_platform_ioremap

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Date:   Sat, 11 Sep 2021 18:16:43 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Cai Huoqing <caihuoqing@...du.com>
Cc:     Lars-Peter Clausen <lars@...afoo.de>, <linux-iio@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>
Subject: Re: [PATCH] iio: ep93xx: Make use of the helper function
 devm_platform_ioremap_resource()

On Wed, 8 Sep 2021 18:56:45 +0800
Cai Huoqing <caihuoqing@...du.com> wrote:

> 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>

+CC Alexander who wrote this driver.

Given this one is less active than the others you've sent I'll pick it up now.
(the others will wait a few days to see if we get reviews from anyone else).

Applied to the togreg branch of iio.git and pushed out as testing for 0-day
to see if it can find anything we missed.

Thanks,

Jonathan

> ---
>  drivers/iio/adc/ep93xx_adc.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/iio/adc/ep93xx_adc.c b/drivers/iio/adc/ep93xx_adc.c
> index 8edd6407b7c3..fd5a9404c8dc 100644
> --- a/drivers/iio/adc/ep93xx_adc.c
> +++ b/drivers/iio/adc/ep93xx_adc.c
> @@ -156,15 +156,13 @@ static int ep93xx_adc_probe(struct platform_device *pdev)
>  	struct iio_dev *iiodev;
>  	struct ep93xx_adc_priv *priv;
>  	struct clk *pclk;
> -	struct resource *res;
>  
>  	iiodev = devm_iio_device_alloc(&pdev->dev, sizeof(*priv));
>  	if (!iiodev)
>  		return -ENOMEM;
>  	priv = iio_priv(iiodev);
>  
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	priv->base = devm_ioremap_resource(&pdev->dev, res);
> +	priv->base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(priv->base))
>  		return PTR_ERR(priv->base);
>