linux-kernel - Re: [PATCH v2 2/2] arm64: dts: qcom: add TP-Link Archer AX55 v1

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Date: Tue, 12 Mar 2024 21:37:49 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Gabor Juhos <j4g8y7@...il.com>, Bjorn Andersson <andersson@...nel.org>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: add TP-Link Archer AX55 v1



On 2/26/24 18:12, Gabor Juhos wrote:
> Add device tree source for the TP-Link Archer AX55 v1 [1]
> which is a dual-band WiFi router based on the IPQ5018 SoC.
> 
> At the moment, only the UART, the GPIO LEDs and buttons
> are usable, but it makes it possible to boot an initramfs
> image on the device.
> 
> The device tree can be extended in the future, once support
> for other periherals will be available for the platform.
> 
> 1. https://www.tp-link.com/en/home-networking/wifi-router/archer-ax55/v1/
> 
> Signed-off-by: Gabor Juhos <j4g8y7@...il.com>
> ---

[...]

> +
> +&uart1_pins {
> +	/*
> +	 * Remove "gpio31" from the default pins in order to be able
> +	 * to use that for the WPS button.
> +	 */
> +	pins = "gpio32", "gpio33", "gpio34";

I believe you can even shorten it down to gpio32/33, 4pin uart
screams flow control, and I'm not sure if it's there only one-way

Konrad