linux-kernel - Re: [PATCH v3 1/6] drm/mediatek: mtk_dpi: Simplify with devm_drm_bridge

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Message-ID: <ed59ff190c9a798d60068c4ac02abb429e9073b1.camel@mediatek.com>
Date:   Thu, 27 Jul 2023 03:11:23 +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 v3 1/6] drm/mediatek: mtk_dpi: Simplify with
 devm_drm_bridge_add()

Hi, Angelo:

On Wed, 2023-07-26 at 10:22 +0200, AngeloGioacchino Del Regno wrote:
> Change drm_bridge_add() to its devm variant to slightly simplify the
> probe function.

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

> 
> Signed-off-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@...labora.com>
> Reviewed-by: Fei Shao <fshao@...omium.org>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 28bdb1f427ff..e4ee0d02893a 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -1089,11 +1089,12 @@ static int mtk_dpi_probe(struct
> platform_device *pdev)
>  	dpi->bridge.of_node = dev->of_node;
>  	dpi->bridge.type = DRM_MODE_CONNECTOR_DPI;
>  
> -	drm_bridge_add(&dpi->bridge);
> +	ret = devm_drm_bridge_add(dev, &dpi->bridge);
> +	if (ret)
> +		return ret;
>  
>  	ret = component_add(dev, &mtk_dpi_component_ops);
>  	if (ret) {
> -		drm_bridge_remove(&dpi->bridge);
>  		dev_err(dev, "Failed to add component: %d\n", ret);
>  		return ret;
>  	}
> @@ -1103,10 +1104,7 @@ static int mtk_dpi_probe(struct
> platform_device *pdev)
>  
>  static int mtk_dpi_remove(struct platform_device *pdev)
>  {
> -	struct mtk_dpi *dpi = platform_get_drvdata(pdev);
> -
>  	component_del(&pdev->dev, &mtk_dpi_component_ops);
> -	drm_bridge_remove(&dpi->bridge);
>  
>  	return 0;
>  }