linux-kernel - Re: [PATCH v2 4/6] arm64: dts: imx8mp-var-som: Add WiFi and Bluetooth support

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Message-ID: <d58e3cae-e303-4e1f-ab43-c800cf0ab2aa@kernel.org>
Date: Sun, 14 Dec 2025 02:23:32 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Stefano Radaelli <stefano.radaelli21@...il.com>,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Stefano Radaelli <stefano.r@...iscite.com>, Rob Herring
 <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 4/6] arm64: dts: imx8mp-var-som: Add WiFi and Bluetooth
 support

On 14/12/2025 00:09, Stefano Radaelli wrote:
> Add device tree nodes for the WiFi and Bluetooth module mounted on the
> VAR-SOM-MX8MP. The module can be based on either the NXP IW612 or IW611
> chipset, depending on the configuration chosen by the customer.
> 
> Regardless of the chipset used, WiFi communicates over SDIO and Bluetooth
> over UART.
> 
> Signed-off-by: Stefano Radaelli <stefano.r@...iscite.com>
> ---
>  .../boot/dts/freescale/imx8mp-var-som.dtsi    | 93 +++++++++++++++++++
>  1 file changed, 93 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
> index 5bba91dcef17..e7f5ec10cbac 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
> @@ -21,6 +21,15 @@ memory@...00000 {
>  		      <0x1 0x00000000 0 0xc0000000>;
>  	};
>  
> +	iw61x_pwrseq: wifi-pwrseq {
> +		compatible = "mmc-pwrseq-simple";
> +		post-power-on-delay-ms = <100>;
> +		power-off-delay-us = <10000>;
> +		reset-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>, /* WIFI_RESET */
> +			      <&gpio2 19 GPIO_ACTIVE_LOW>; /* WIFI_PWR_EN */
> +		status = "okay";

Did you disable it anywhere before?


Best regards,
Krzysztof