linux-kernel - Re: [PATCH v2] arm64: dts: rockchip: add rfkill node for M.2 E wifi on orangepi-5-plus

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Message-ID: <a10e70e2d67b9d63f2296b36b4cb3719@manjaro.org>
Date: Wed, 07 Aug 2024 19:24:27 +0200
From: Dragan Simic <dsimic@...jaro.org>
To: Florian Klink <flokli@...kli.de>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
 Sebastian Reichel <sebastian.reichel@...labora.com>, Kever Yang
 <kever.yang@...k-chips.com>, Muhammed Efe Cetin <efectn@...tonmail.com>,
 FUKAUMI Naoki <naoki@...xa.com>, Tamás Szűcs
 <tszucs@...tonmail.ch>, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: dts: rockchip: add rfkill node for M.2 E wifi
 on orangepi-5-plus

On 2024-08-07 19:00, Florian Klink wrote:
> This follows the same logic as 82d40b141a4c ("arm64: dts: rockchip: add
> rfkill node for M.2 Key E WiFi on rock-5b").
> 
> On the orangepi-5-plus, there's also a GPIO pin connecting the WiFi
> enable signal inside the M.2 Key E slot.
> 
> The exact GPIO PIN can be validated in the Armbian rk-5.10-rkr4 kernel
> rk3588-orangepi-5-plus.dtsi file [1], which contains a `wifi_disable`
> node referencing RK_PC4 on &gpio0.
> 
> Signed-off-by: Florian Klink <flokli@...kli.de>
> Tested-by: Florian Klink <flokli@...kli.de>

I forgot to mention that providing a Tested-by tag is redundant when
there's already a Signed-off-by tag, because the latter already implies
the former.

> Link:
> https://github.com/armbian/linux-rockchip/blob/9fbe23c9da24f236c6009f42d3f02c1ffb84c169/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts
> [1]
> ---
>  arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts
> b/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts
> index e74871491ef5..c3a6812cc93a 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts
> @@ -105,6 +105,13 @@ led {
>  		};
>  	};
> 
> +	rfkill {
> +		compatible = "rfkill-gpio";
> +		label = "rfkill-pcie-wlan";
> +		radio-type = "wlan";
> +		shutdown-gpios = <&gpio0 RK_PC4 GPIO_ACTIVE_HIGH>;
> +	};
> +
>  	sound {
>  		compatible = "simple-audio-card";
>  		pinctrl-names = "default";