linux-kernel - Re: [PATCH v4, 01/33] dt-bindings: mediatek: add binding for mt8183 display

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Date:   Wed, 17 Jul 2019 11:22:58 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     <yongqiang.niu@...iatek.com>
CC:     Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "David Airlie" <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v4, 01/33] dt-bindings: mediatek: add binding for mt8183
 display

Hi, Yongqiang:

On Tue, 2019-07-09 at 06:33 +0800, yongqiang.niu@...iatek.com wrote:
> From: Yongqiang Niu <yongqiang.niu@...iatek.com>
> 
> Update device tree binding documention for the display subsystem for
> Mediatek MT8183 SOCs
> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> ---
>  .../bindings/display/mediatek/mediatek,display.txt  | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,display.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,display.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,display.txt
> new file mode 100644
> index 0000000..951d2a8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,display.txt
> @@ -0,0 +1,21 @@
> +Mediatek Display Device
> +============================
> +
> +The Mediatek Display Device provides power control to the system.
> +
> +Required Properties:
> +
> +- compatible: Should be one of:
> +	- "mediatek,mt8183-display"

I think this is "mediatek,mt8183-mmsys". In [1], Matthias has agreed
that we could keep work on his patch, so you should apply his patch and
remove this patch. In [2], I've found that MT8183 scpsys has some
problem with Matthias' patch, so please also fix this problem.

[1] https://patchwork.kernel.org/patch/10686327/
[2] https://patchwork.kernel.org/patch/11005731/

Regards,
CK

> +
> +The Display Device power name are defined in
> +include\dt-bindings\power\mt*-power.h
> +
> +
> +Example:
> +
> +display_components: dispsys@...00000 {
> +	compatible = "mediatek,mt8183-display";
> +	reg = <0 0x14000000 0 0x1000>;
> +	power-domains = <&scpsys MT8183_POWER_DOMAIN_DISP>;
> +};
> \ No newline at end of file