linux-kernel - Re: [PATCH 04/12] arm64: dts: allwinner: orange-pi-3: Enable HDMI output

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Date:   Mon, 8 Apr 2019 09:24:24 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     megous@...ous.com
Cc:     linux-sunxi@...glegroups.com, Chen-Yu Tsai <wens@...e.org>,
        Rob Herring <robh+dt@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Arend van Spriel <arend.vanspriel@...adcom.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Chi-Hsien Lin <chi-hsien.lin@...ress.com>,
        Wright Feng <wright.feng@...ress.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Naveen Gupta <naveen.gupta@...ress.com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        brcm80211-dev-list@...ress.com, linux-gpio@...r.kernel.org
Subject: Re: [PATCH 04/12] arm64: dts: allwinner: orange-pi-3: Enable HDMI
 output

On Sat, Apr 06, 2019 at 01:45:06AM +0200, 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. Before EDID can be read, we need to pull PH2 high.
>
> Signed-off-by: Ondrej Jirman <megous@...ous.com>
> ---
>  .../dts/allwinner/sun50i-h6-orangepi-3.dts    | 35 +++++++++++++++++++
>  1 file changed, 35 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 7a2424fcaed7..644946749088 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> @@ -21,6 +21,17 @@
>  		stdout-path = "serial0:115200n8";
>  	};
>
> +	connector {
> +		compatible = "hdmi-connector";
> +		type = "a";
> +
> +		port {
> +			hdmi_con_in: endpoint {
> +				remote-endpoint = <&hdmi_out_con>;
> +			};
> +		};
> +	};
> +
>  	leds {
>  		compatible = "gpio-leds";
>
> @@ -36,6 +47,15 @@
>  		};
>  	};
>
> +	reg_ddc: ddc-io {
> +                compatible = "regulator-fixed";
> +                regulator-name = "ddc-io";
> +                regulator-min-microvolt = <5000000>;
> +                regulator-max-microvolt = <5000000>;
> +                enable-active-high;
> +                gpio = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
> +        };
> +

This is indented with spaces and generates checkpatch warnings.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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