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Date: Sat, 4 Apr 2020 23:45:45 +0800 From: Chun-Kuang Hu <chunkuang.hu@...nel.org> To: Jitao Shi <jitao.shi@...iatek.com> Cc: Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Matthias Brugger <matthias.bgg@...il.com>, Daniel Vetter <daniel@...ll.ch>, David Airlie <airlied@...ux.ie>, DRI Development <dri-devel@...ts.freedesktop.org>, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, srv_heupstream@...iatek.com, huijuan.xie@...iatek.com, stonea168@....com, cawa.cheng@...iatek.com, linux-mediatek@...ts.infradead.org, yingjoe.chen@...iatek.com, eddie.huang@...iatek.com, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH v4 1/4] dt-bindings: display: mediatek: add property to control mipi tx drive current Hi, Jitao: Jitao Shi <jitao.shi@...iatek.com> 於 2020年3月31日 週二 下午4:28寫道: > > Add a property to control mipi tx drive current: > "drive-strength-microamp" Reviewed-by: Chun-Kuang Hu <chunkuang.hu@...nel.org> > > Signed-off-by: Jitao Shi <jitao.shi@...iatek.com> > --- > .../devicetree/bindings/display/mediatek/mediatek,dsi.txt | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt > index a19a6cc375ed..d78b6d6d8fab 100644 > --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt > +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt > @@ -33,6 +33,10 @@ Required properties: > - #clock-cells: must be <0>; > - #phy-cells: must be <0>. > > +Optional properties: > +- drive-strength-microamp: adjust driving current, should be 3000 ~ 6000. And > + the step is 200. > + > Example: > > mipi_tx0: mipi-dphy@...15000 { > @@ -42,6 +46,7 @@ mipi_tx0: mipi-dphy@...15000 { > clock-output-names = "mipi_tx0_pll"; > #clock-cells = <0>; > #phy-cells = <0>; > + drive-strength-microamp = <4600>; > }; > > dsi0: dsi@...1b000 { > -- > 2.21.0 > _______________________________________________ > dri-devel mailing list > dri-devel@...ts.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel
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