Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <1625038079-25815-1-git-send-email-kyrie.wu@mediatek.com> <1625038079-25815-3-git-send-email-kyrie.wu@mediatek.com>
In-Reply-To: <1625038079-25815-3-git-send-email-kyrie.wu@mediatek.com>
From:   Tzung-Bi Shih <tzungbi@google.com>
Date:   Tue, 6 Jul 2021 19:00:25 +0800
Message-ID: <CA+Px+wVE=QKh2-+RZevLUweFEUuoovW-1=Da2AWzB1fnJP=EKw@mail.gmail.com>
Subject: Re: [PATCH v2,2/9] media: mtk-jpegenc: Add MT8195 JPEG venc driver
To:     "kyrie.wu" <kyrie.wu@mediatek.com>
Cc:     Hans Verkuil <hverkuil-cisco@xs4all.nl>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Bin Liu <bin.liu@mediatek.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Tzung-Bi Shih <tzungbi@chromium.org>,
        Project_Global_Chrome_Upstream_Group@mediatek.com,
        linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org,
        Tomasz Figa <tfiga@chromium.org>, xia.jiang@mediatek.com,
        maoguang.meng@mediatek.com, srv_heupstream@mediatek.com
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Wed, Jun 30, 2021 at 3:32 PM kyrie.wu <kyrie.wu@mediatek.com> wrote:
> Add MT8195 JPEG venc driver's compatible and device private data.
> compatible = "mediatek,mt8195-jpgenc": this node would only register
> jpgenc device node;
> compatible = "mediatek,mt8195-jpgenc0": HW0 node, this node would not
> register jpgenc device node, but register irq, init clk and power,
> remmap register base and do other resource options;
> compatible = "mediatek,mt8195-jpgenc1": HW1 node, just like HW0 node;
The commit message is not easy to read.  Please rephrase the sentences.

What does "venc" stand for?  I believe it is a copy-n-paste typo.

The commit title "support MT8195 JPEG encoder" looks better to me.

> -static const struct mtk_jpeg_variant mtk_jpeg_drvdata = {
> +static const struct mtk_jpeg_variant mtk_jpegenc_drvdata = {
Why remove mtk_jpeg_drvdata?

> -       .irq_handler = mtk_jpeg_enc_irq,
Why remove the IRQ handler?

> @@ -1548,10 +1551,6 @@ static const struct of_device_id mtk_jpeg_match[] = {
>                 .compatible = "mediatek,mt2701-jpgdec",
>                 .data = &mt8173_jpeg_drvdata,
>         },
> -       {
> -               .compatible = "mediatek,mtk-jpgenc",
> -               .data = &mtk_jpeg_drvdata,
> -       },
Why remove "mediatek,mtk-jpgenc"?

> +#if defined(CONFIG_OF)
> +static const struct of_device_id mtk_jpegenc_hw_ids[] = {
> +       {
> +               .compatible = "mediatek,mt8195-jpgenc0",
> +       },
> +       {       .compatible = "mediatek,mt8195-jpgenc1",
> +       },
> +       {},
> +};
> +MODULE_DEVICE_TABLE(of, mtk_jpegenc_hw_ids);
> +#endif
Would expect somewhere to reference mtk_jpegenc_hw_ids but failed to find it.