linux-kernel - Re: [PATCH v3 15/15] drm/mediatek: add mediatek-drm of vdosys1 support for MT8195

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Date:   Sun, 22 Aug 2021 09:14:24 +0800
From:   Chun-Kuang Hu <chunkuang.hu@...nel.org>
To:     "Nancy.Lin" <nancy.lin@...iatek.com>
Cc:     CK Hu <ck.hu@...iatek.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "jason-jh . lin" <jason-jh.lin@...iatek.com>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        DTML <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        singo.chang@...iatek.com,
        srv_heupstream <srv_heupstream@...iatek.com>
Subject: Re: [PATCH v3 15/15] drm/mediatek: add mediatek-drm of vdosys1
 support for MT8195

Hi, Nancy:

Nancy.Lin <nancy.lin@...iatek.com> 於 2021年8月18日 週三 下午5:18寫道：
>
> Add driver data of mt8195 vdosys1 to mediatek-drm and modify drm for
> multi-mmsys support. The two mmsys (vdosys0 and vdosys1) will bring
> up two drm drivers, only one drm driver register as the drm device.
> Each drm driver binds its own component. The first bind drm driver
> will allocate the drm device, and the last bind drm driver registers
> the drm device to drm core. Each crtc path is created with the
> corresponding drm driver data.
>
> Signed-off-by: Nancy.Lin <nancy.lin@...iatek.com>
>
>
> +static const struct mtk_ddp_comp_funcs ddp_ovl_adaptor = {
> +       .clk_enable = mtk_ethdr_clk_enable,
> +       .clk_disable = mtk_ethdr_clk_disable,
> +       .config = mtk_ethdr_config,
> +       .start = mtk_ethdr_start,
> +       .stop = mtk_ethdr_stop,
> +       .layer_nr = mtk_ethdr_layer_nr,
> +       .layer_config = mtk_ethdr_layer_config,
> +       .enable_vblank = mtk_ethdr_enable_vblank,
> +       .disable_vblank = mtk_ethdr_disable_vblank,
> +};

I think ethdr is inside the group of ovl_adpator. I preter this
function is implemented by ovl_adaptor, and ovl_adaptor control rdma,
merge, ethdr.

Regards,
Chun-Kuang.

> +
>