linux-kernel - Re: [PATCH] media: rcar-csi2: Make use of the helper function devm_platform_ioremap

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Date:   Wed, 1 Sep 2021 20:15:55 +0200
From:   Niklas Söderlund 
        <niklas.soderlund@...natech.se>
To:     Cai Huoqing <caihuoqing@...du.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: rcar-csi2: Make use of the helper function
 devm_platform_ioremap_resource()

Hello Cai,

Thanks for your work.

On 2021-09-01 13:55:09 +0800, Cai Huoqing 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>

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>

> ---
>  drivers/media/platform/rcar-vin/rcar-csi2.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c
> index 711b52ba42b5..a4952711b7b1 100644
> --- a/drivers/media/platform/rcar-vin/rcar-csi2.c
> +++ b/drivers/media/platform/rcar-vin/rcar-csi2.c
> @@ -1238,11 +1238,9 @@ static const struct media_entity_operations rcar_csi2_entity_ops = {
>  static int rcsi2_probe_resources(struct rcar_csi2 *priv,
>  				 struct platform_device *pdev)
>  {
> -	struct resource *res;
>  	int irq, ret;
>  
> -	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);
>  
> -- 
> 2.25.1
> 

-- 
Regards,
Niklas Söderlund