linux-kernel - Re: [PATCH 5/9] media: mtk-vcodec: Rewrite venc clock interface

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Date:   Tue, 24 Aug 2021 18:24:29 +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 5/9] media: mtk-vcodec: Rewrite venc clock interface

On Mon, Aug 16, 2021 at 06:59:30PM +0800, Irui Wang wrote:
> -void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm)
> +void mtk_vcodec_enc_clock_on(struct mtk_vcodec_dev *dev, int core_id)
>  {
> -	struct mtk_vcodec_clk *enc_clk = &pm->venc_clk;
> -	int ret, i = 0;
> +	struct mtk_venc_comp_dev *venc;
> +	struct mtk_vcodec_pm *enc_pm;
> +	struct mtk_vcodec_clk *enc_clk;
> +	struct clk		*clk;
To be neat, remove the extra spaces.

> -	ret = mtk_smi_larb_get(pm->larbvenc);
> -	if (ret) {
> -		mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret);
> -		goto clkerr;
I may miss the context but why does it remove mtk_smi_larb_get()?

> -void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm)
> +void mtk_vcodec_enc_clock_off(struct mtk_vcodec_dev *dev, int core_id)
>  {
> -	struct mtk_vcodec_clk *enc_clk = &pm->venc_clk;
> -	int i = 0;
> +	struct mtk_venc_comp_dev *venc;
> +	struct mtk_vcodec_pm *enc_pm;
> +	struct mtk_vcodec_clk *enc_clk;
> +	int i;
>  
> -	mtk_smi_larb_put(pm->larbvenc);
Same here.  Why does it remove mtk_smi_larb_put()?

>  int mtk_venc_enable_comp_hw(struct mtk_vcodec_dev *dev)
>  {
>  	int i, ret;
>  	struct mtk_venc_comp_dev *venc_comp;
> +	struct mtk_vcodec_clk *enc_clk;
> +	int j = 0;
It doesn't need to be initialized.  Can inline to "int i, ret;".