linux-kernel - Re: [PATCH v3 4/5] arm64: dts: rockchip: Add Odroid Go Super

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Date:   Mon, 14 Nov 2022 09:47:31 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Maya Matuszczyk <maccraft123mc@...il.com>,
        linux-rockchip@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     João H . Spies <jhlspies@...il.com>,
        Chris Morgan <macroalpha82@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/5] arm64: dts: rockchip: Add Odroid Go Super

On 12/11/2022 15:34, Maya Matuszczyk wrote:
> This device is another revision of Odroid Go Advance, with added two
> volume buttons, a second analog stick and a bigger screen that isn't yet
> supported in the Mainline Kernel.
> 
> Signed-off-by: Maya Matuszczyk <maccraft123mc@...il.com>
> ---
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../boot/dts/rockchip/rk3326-odroid-go3.dts   | 161 ++++++++++++++++++
>  2 files changed, 162 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3326-odroid-go3.dts
> 
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index 12446f531d29..142c83d2e5aa 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -9,6 +9,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-rock-pi-s.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3318-a95x-z2.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go2.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go2-v11.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go3.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-a1.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-evb.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-nanopi-r2s.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go3.dts b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go3.dts
> new file mode 100644
> index 000000000000..4b6c896d8abd
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go3.dts
> @@ -0,0 +1,161 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2019 Hardkernel Co., Ltd
> + * Copyright (c) 2020 Theobroma Systems Design und Consulting GmbH
> + * Copyright (c) 2022 Maya Matuszczyk <maccraft123mc@...il.com>
> + */
> +
> +/dts-v1/;
> +#include "rk3326-odroid-go.dtsi"
> +
> +/ {
> +	model = "ODROID-GO Super";
> +	compatible = "hardkernel,rk3326-odroid-go3", "rockchip,rk3326";
> +
> +	joystick_mux_controller: mux-controller {
> +		status = "okay";

Why adding status? Also, it's not a first property...

> +		compatible = "gpio-mux";
> +		pinctrl = <&mux_en_pins>;
> +		#mux-control-cells = <0>;
> +
> +		mux-gpios = <&gpio3 RK_PB3 GPIO_ACTIVE_LOW>,
> +			    <&gpio3 RK_PB0 GPIO_ACTIVE_LOW>;
> +	};
> +
> +	joystick_mux: adc-mux {
> +		status = "okay";

Why status? Is it a node override?

> +		compatible = "io-channel-mux";
> +		io-channels = <&saradc 1>;
> +		io-channel-names = "parent

Best regards,
Krzysztof