linux-kernel - Re: [linux-sunxi] [PATCH v8 4/4] arm64: dts: allwinner: orange-pi-3: Enable HDMI output

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Date:   Fri, 9 Aug 2019 11:04:43 +0200
From:   Ondřej Jirman <megous@...ous.com>
To:     Code Kipper <codekipper@...il.com>
Cc:     linux-sunxi <linux-sunxi@...glegroups.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Jernej Škrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel@...ts.freedesktop.org,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [linux-sunxi] [PATCH v8 4/4] arm64: dts: allwinner: orange-pi-3:
 Enable HDMI output

On Fri, Aug 09, 2019 at 10:25:32AM +0200, Code Kipper wrote:
> On Tue, 6 Aug 2019 at 17:57, <megous@...ous.com> wrote:
> >
> > From: Ondrej Jirman <megous@...ous.com>
> >
> > Orange Pi 3 has a DDC_CEC_EN signal connected to PH2, that enables the DDC
> > I2C bus voltage shifter. Before EDID can be read, we need to pull PH2 high.
> > This is realized by the ddc-en-gpios property.
> Great work. Is there any chance you can move this to the
> arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi?, as all the H6
> based orange-pi's have this feature.

I plan to do that as a followup patch, once this is merged.

regards,
	o.

> BR,
> CK
> >
> > Signed-off-by: Ondrej Jirman <megous@...ous.com>
> > ---
> >  .../dts/allwinner/sun50i-h6-orangepi-3.dts    | 26 +++++++++++++++++++
> >  1 file changed, 26 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> > index 2c6807b74ff6..01bb1bafe284 100644
> > --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> > @@ -22,6 +22,18 @@
> >                 stdout-path = "serial0:115200n8";
> >         };
> >
> > +       connector {
> > +               compatible = "hdmi-connector";
> > +               ddc-en-gpios = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
> > +               type = "a";
> > +
> > +               port {
> > +                       hdmi_con_in: endpoint {
> > +                               remote-endpoint = <&hdmi_out_con>;
> > +                       };
> > +               };
> > +       };
> > +
> >         leds {
> >                 compatible = "gpio-leds";
> >
> > @@ -72,6 +84,10 @@
> >         cpu-supply = <&reg_dcdca>;
> >  };
> >
> > +&de {
> > +       status = "okay";
> > +};
> > +
> >  &ehci0 {
> >         status = "okay";
> >  };
> > @@ -91,6 +107,16 @@
> >         status = "okay";
> >  };
> >
> > +&hdmi {
> > +       status = "okay";
> > +};
> > +
> > +&hdmi_out {
> > +       hdmi_out_con: endpoint {
> > +               remote-endpoint = <&hdmi_con_in>;
> > +       };
> > +};
> > +
> >  &mdio {
> >         ext_rgmii_phy: ethernet-phy@1 {
> >                 compatible = "ethernet-phy-ieee802.3-c22";
> > --
> > 2.22.0
> >
> > --
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