linux-kernel - Re: [PATCH v2 1/2] sun7i-a20-marsboard.dts: add marsboard-a20 support

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Message-ID: <20220111103542.f7ilg2ugqklpztr5@houat>
Date:   Tue, 11 Jan 2022 11:35:42 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     conleylee@...mail.com
Cc:     robh@...nel.org, wens@...e.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] sun7i-a20-marsboard.dts: add marsboard-a20 support

Hi,

On Wed, Jan 05, 2022 at 10:45:50AM +0800, conleylee@...mail.com wrote:
> From: conley <conleylee@...mail.com>

This should be your full name in the author and signed-off-by

> ARM dts: sun7i: Add Marsboard A20 board
> 
> This patch add support for Marsboard A20 board.
> 
> The Marsboard A20 is a A20 based SBC with 1G RAM, 8G Flash, micro SD
> card slot , SATA socketm 10/100 ethernet, HDMI port, 4 USB2.0 ports, 2
> USB2.0 OTG, USB WIFI(RTL8188EU) with antenna.
> 
> Change since v1.
>   - Spearate biddings and dts as two patches.
>   - use SPDX tag

And the changelog should be after the --- below

> Signed-off-by: conley <conleylee@...mail.com>
> ---
>  arch/arm/boot/dts/Makefile                |   1 +
>  arch/arm/boot/dts/sun7i-a20-marsboard.dts | 183 ++++++++++++++++++++++
>  2 files changed, 184 insertions(+)
>  create mode 100644 arch/arm/boot/dts/sun7i-a20-marsboard.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 0de64f237cd8..4628a2617313 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1219,6 +1219,7 @@ dtb-$(CONFIG_MACH_SUN7I) += \
>  	sun7i-a20-icnova-swac.dtb \
>  	sun7i-a20-lamobo-r1.dtb \
>  	sun7i-a20-linutronix-testbox-v2.dtb \
> +	sun7i-a20-marsboard.dtb \
>  	sun7i-a20-m3.dtb \
>  	sun7i-a20-mk808c.dtb \
>  	sun7i-a20-olimex-som-evb.dtb \
> diff --git a/arch/arm/boot/dts/sun7i-a20-marsboard.dts b/arch/arm/boot/dts/sun7i-a20-marsboard.dts
> new file mode 100644
> index 000000000000..7ab6aa30fee6
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun7i-a20-marsboard.dts
> @@ -0,0 +1,183 @@
> +// SPDX-License-Identifier: LGPL-2.1+

The license for DT files is usually a dual-license with GPL and MIT,
which would be:

SPDX-License-Identifier: (GPL-2.0+ OR MIT)

You can't link to a DT, so GPL and LGPL should be equivalent here, and
MIT is useful for other projects (like the *BSD) that reuse the DT.

> +/*
> + * Copyright 2021 Conley Lee
> + * Conley Lee <conleylee@...mail.com>
> + */
> +
> +/dts-v1/;
> +#include "sun7i-a20.dtsi"
> +#include "sunxi-common-regulators.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> +	model = "HAOYU Electronics Marsboard A20";
> +	compatible = "haoyu,a20-marsboard", "allwinner,sun7i-a20";

Is there multiple boards called marsboard?

If not, then the compatible should be haoyu,marsboard.

The file name should be sun7i-a20-haoyu-marsboard too.

> +	aliases {
> +		serial0 = &uart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	hdmi-connector {
> +		compatible = "hdmi-connector";
> +		type = "a";
> +
> +		port {
> +			hdmi_con_in: endpoint {
> +				remote-endpoint = <&hdmi_out_con>;
> +			};
> +		};
> +	};
> +};
> +
> +&ahci {
> +	target-supply = <&reg_ahci_5v>;
> +	status = "okay";
> +};
> +
> +&codec {
> +	status = "okay";
> +};
> +
> +&cpu0 {
> +	cpu-supply = <&reg_dcdc2>;
> +};
> +
> +&de {
> +	status = "okay";
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&ehci1 {
> +	status = "okay";
> +};
> +
> +&gmac_mii_pins {
> +	pins = "PA0", "PA1", "PA2",
> +	"PA3", "PA4", "PA5", "PA6",
> +	"PA7", "PA8", "PA9", "PA10",
> +	"PA11", "PA12", "PA13", "PA14",
> +	"PA15", "PA16", "PA17";
> +};

Why do you need that node?

Maxime

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