linux-kernel - Re: [PATCH v2, 02/17] dt-bindings: mediatek: add CLK_MM_DISP_CONFIG control description for mt8192 display

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Date:   Wed, 16 Dec 2020 23:17:14 +0800
From:   Chun-Kuang Hu <chunkuang.hu@...nel.org>
To:     Yongqiang Niu <yongqiang.niu@...iatek.com>
Cc:     CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        DTML <devicetree@...r.kernel.org>,
        David Airlie <airlied@...ux.ie>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2, 02/17] dt-bindings: mediatek: add CLK_MM_DISP_CONFIG
 control description for mt8192 display

Hi, Yongqiang:

Yongqiang Niu <yongqiang.niu@...iatek.com> 於 2020年12月12日 週六 下午12:12寫道：
>
> add CLK_MM_DISP_CONFIG control description for mt8192 displa

display

>
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> ---
>  Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> index 1972fa7..dfbec76 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> @@ -54,6 +54,9 @@ Required properties (all function blocks):
>    DPI controller nodes have multiple clock inputs. These are documented in
>    mediatek,dsi.txt and mediatek,dpi.txt, respectively.
>    An exception is that the mt8183 mutex is always free running with no clocks property.
> +  An exception is that the mt8192 display add 2 more clocks(CLK_MM_DISP_CONFIG, CLK_MM_26MHZ),
> +  and these 2 clocks need enabled before display module work like mutex clock, so we add these
> +  2 clocks controled same with mutex clock.

If every display module needs these two clock, add these two clock to
all the display module which need them.

Regards,
Chun-Kuang.

>
>  Required properties (DMA function blocks):
>  - compatible: Should be one of
> --
> 1.8.1.1.dirty
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek

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