linux-kernel - Re: [PATCH 3/4] arm64: dts: rockchip: enable wifi on ArmSoM Sige5

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Message-ID: <CALWfF7JOJSihtfqrFiZtTxnzvoU6FP3WXuWjYOVaAvjPJZWWgg@mail.gmail.com>
Date: Wed, 4 Jun 2025 21:43:45 -0500
From: Jimmy Hon <honyuenkwun@...il.com>
To: Alexey Charkov <alchark@...il.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>, devicetree@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] arm64: dts: rockchip: enable wifi on ArmSoM Sige5

>
> +&sdio {
> +       bus-width = <4>;
> +       cap-sdio-irq;
> +       disable-wp;
> +       keep-power-in-suspend;
> +       mmc-pwrseq = <&sdio_pwrseq>;
> +       no-sd;
> +       no-mmc;
> +       non-removable;
> +       sd-uhs-sdr50;
> +       sd-uhs-sdr104;
> +       vmmc-supply = <&vcc_3v3_s3>;
> +       vqmmc-supply = <&vcc_1v8_s3>;
> +       wakeup-source;
> +       status = "okay";
> +};

When you enable the sdio node on your v1.2 board with the broadcom
chip (using SYN43752), does the btsdio.ko bind to the device and
create an extra rfkill bluetooth node?

If so, you'll want to blacklist the SYN43752 chip in the btsdio.ko.
Similar to https://github.com/jimmyhon/linux/commit/81c14dc2dea2ceaea8d390188b352d32e278abc8
The original logic was introduced in
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/bluetooth/btsdio.c?id=b4cdaba274247c9c841c6a682c08fa91fb3aa549

Jimmy