linux-kernel - Re: [PATCH] drm/shmobile: Make use of the helper function devm_platform_ioremap

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Date:   Thu, 23 Sep 2021 02:15:50 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Cai Huoqing <caihuoqing@...du.com>
Cc:     Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/shmobile: Make use of the helper function
 devm_platform_ioremap_resource()

Hi Cai,

Thank you for the patch.

On Tue, Aug 31, 2021 at 09:57:30PM +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: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
>  drivers/gpu/drm/shmobile/shmob_drm_drv.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> index 7db01904d18d..80078a9fd7f6 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> @@ -192,7 +192,6 @@ static int shmob_drm_probe(struct platform_device *pdev)
>  	struct shmob_drm_platform_data *pdata = pdev->dev.platform_data;
>  	struct shmob_drm_device *sdev;
>  	struct drm_device *ddev;
> -	struct resource *res;
>  	unsigned int i;
>  	int ret;
>  
> @@ -215,8 +214,7 @@ static int shmob_drm_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, sdev);
>  
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	sdev->mmio = devm_ioremap_resource(&pdev->dev, res);
> +	sdev->mmio = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(sdev->mmio))
>  		return PTR_ERR(sdev->mmio);
>  

-- 
Regards,

Laurent Pinchart