linux-kernel - Re: [PATCH 3/9] media: mtk-vcodec: Rewrite venc power manage interface

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Date:   Mon, 23 Aug 2021 18:16:47 +0800
From:   Tzung-Bi Shih <tzungbi@...gle.com>
To:     Irui Wang <irui.wang@...iatek.com>
Cc:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Tzung-Bi Shih <tzungbi@...omium.org>,
        Alexandre Courbot <acourbot@...omium.org>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tomasz Figa <tfiga@...gle.com>, Yong Wu <yong.wu@...iatek.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Maoguang Meng <maoguang.meng@...iatek.com>,
        Longfei Wang <longfei.wang@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Fritz Koenig <frkoenig@...omium.org>,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        srv_heupstream@...iatek.com, linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH 3/9] media: mtk-vcodec: Rewrite venc power manage
 interface

On Mon, Aug 16, 2021 at 06:59:28PM +0800, Irui Wang wrote:
> @@ -105,6 +106,14 @@ static int mtk_venc_comp_probe(struct platform_device *pdev)
>  
>  	comp_dev->plat_dev = pdev;
>  
> +	ret = mtk_vcodec_init_enc_pm(pdev, &comp_dev->pm);
> +	if (ret < 0) {
> +		dev_err(&pdev->dev, "Failed to get venc component clock source!");
> +		return ret;
> +	}
> +
> +	pm_runtime_enable(&pdev->dev);
mtk_vcodec_init_enc_pm() and mtk_vcodec_release_enc_pm() is more like a pair.  Does it make more sense to call pm_runtime_enable() in mtk_vcodec_init_enc_pm()?