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Message-ID: <CAGb2v66LGkzscbpCAwhPvA2VPL-8Qpc+e5vNFPq6vS2Hvh9DbA@mail.gmail.com> Date: Fri, 29 Dec 2017 16:45:18 +0800 From: Chen-Yu Tsai <wens@...e.org> To: Icenowy Zheng <icenowy@...c.io> Cc: Rob Herring <robh+dt@...nel.org>, Maxime Ripard <maxime.ripard@...e-electrons.com>, Chen-Yu Tsai <wens@...e.org>, linux-clk <linux-clk@...r.kernel.org>, devicetree <devicetree@...r.kernel.org>, linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>, linux-kernel <linux-kernel@...r.kernel.org>, dri-devel <dri-devel@...ts.freedesktop.org> Subject: Re: [PATCH v3 07/11] ARM: sunxi: h3/h5: add simplefb nodes On Fri, Dec 22, 2017 at 8:22 PM, Icenowy Zheng <icenowy@...c.io> wrote: > The H3/H5 SoCs have a HDMI output and a TV Composite output. > > Add simplefb nodes for these outputs. > > Signed-off-by: Icenowy Zheng <icenowy@...c.io> > --- > arch/arm/boot/dts/sunxi-h3-h5.dtsi | 29 +++++++++++++++++++++++++++++ > 1 file changed, 29 insertions(+) > > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi > index fcb909658cf0..31478c03790d 100644 > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi > @@ -53,6 +53,35 @@ > #address-cells = <1>; > #size-cells = <1>; > > + chosen { > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + > + framebuffer-hdmi { > + compatible = "allwinner,simple-framebuffer", > + "simple-framebuffer"; > + allwinner,pipeline = "mixer0-lcd0-hdmi"; > + clocks = <&display_clocks CLK_BUS_MIXER0>, > + <&ccu CLK_BUS_TCON0>, <&ccu CLK_BUS_HDMI>, Are the bus clocks necessary? It's not like simplefb is going to access any of the control registers. > + <&display_clocks CLK_MIXER0>, > + <&ccu CLK_TCON0>, <&ccu CLK_HDMI>, > + <&ccu CLK_HDMI_DDC>; Is the DDC clock necessary? There's no usage of DDC with simplefb. ChenYu > + status = "disabled"; > + }; > + > + framebuffer-tve { > + compatible = "allwinner,simple-framebuffer", > + "simple-framebuffer"; > + allwinner,pipeline = "mixer1-lcd1-tve"; > + clocks = <&display_clocks CLK_BUS_MIXER1>, > + <&ccu CLK_BUS_TCON1>, <&ccu CLK_BUS_TVE>, > + <&display_clocks CLK_MIXER1>, > + <&ccu CLK_TVE>; > + status = "disabled"; > + }; > + }; > + > clocks { > #address-cells = <1>; > #size-cells = <1>; > -- > 2.14.2 >
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