linux-kernel - Re: [PATCH v2 5/6] drm/mediatek: mtk_dpi: Use devm_platform_ioremap

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Message-ID: <7111a02d63503c231670abd68627654586461883.camel@mediatek.com>
Date:   Wed, 26 Jul 2023 05:55:58 +0000
From:   CK Hu (胡俊光) <ck.hu@...iatek.com>
To:     "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>
CC:     "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "fshao@...omium.org" <fshao@...omium.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "kernel@...labora.com" <kernel@...labora.com>
Subject: Re: [PATCH v2 5/6] drm/mediatek: mtk_dpi: Use
 devm_platform_ioremap_resource()

Hi, Angelo:

On Wed, 2023-07-19 at 09:50 +0200, AngeloGioacchino Del Regno wrote:
> Instead of the open-coded platform_get_resource,
> devm_ioremap_resource
> switch to devm_platform_ioremap_resource(), also dropping the useless
> struct resource pointer, which becomes unused.

Reviewed-by: CK Hu <ck.hu@...iatek.com>

> 
> Signed-off-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@...labora.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 3a140498c98a..244340df7468 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -1007,7 +1007,6 @@ static int mtk_dpi_probe(struct platform_device
> *pdev)
>  {
>  	struct device *dev = &pdev->dev;
>  	struct mtk_dpi *dpi;
> -	struct resource *mem;
>  	int ret;
>  
>  	dpi = devm_kzalloc(dev, sizeof(*dpi), GFP_KERNEL);
> @@ -1038,8 +1037,7 @@ static int mtk_dpi_probe(struct platform_device
> *pdev)
>  			dev_dbg(&pdev->dev, "Cannot find pinctrl
> active!\n");
>  		}
>  	}
> -	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	dpi->regs = devm_ioremap_resource(dev, mem);
> +	dpi->regs = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(dpi->regs))
>  		return dev_err_probe(dev, PTR_ERR(dpi->regs),
>  				     "Failed to ioremap mem
> resource\n");