linux-kernel - Re: [PATCH] ARM: dts: imx6ull-dhcor: Handle both 1DX and 1YN WiFi on i.MX6ULL DHCOR

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Message-ID: <aYoyrqV2lSJetls5@lizhi-Precision-Tower-5810>
Date: Mon, 9 Feb 2026 14:17:02 -0500
From: Frank Li <Frank.li@....com>
To: Marek Vasut <marex@...ladev.com>
Cc: linux-arm-kernel@...ts.infradead.org,
	Christoph Niedermaier <cniedermaier@...electronics.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Fabio Estevam <festevam@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Rob Herring <robh@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, kernel@...electronics.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: imx6ull-dhcor: Handle both 1DX and 1YN WiFi on
 i.MX6ULL DHCOR

On Mon, Feb 09, 2026 at 06:07:04PM +0100, Marek Vasut wrote:
> The muRata 1DX WiFi/BT chip is mounted on the DHCOM i.MX6ULL. This chip
> has been discontinued and replaced by the muRata 1YN chip. The new chip
> is a drop-in replacement of the old chip. To support both chips for the
> i.MX6ULL DHCOR, drop the more specific compatible string and let the
> driver auto-detect the chip type. Currently, there are no known quirks
> that would apply only to one or the other chip.
>
> Signed-off-by: Marek Vasut <marex@...ladev.com>
> ---
> Cc: Christoph Niedermaier <cniedermaier@...electronics.com>
> Cc: Conor Dooley <conor+dt@...nel.org>
> Cc: Fabio Estevam <festevam@...il.com>
> Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>
> Cc: Pengutronix Kernel Team <kernel@...gutronix.de>
> Cc: Rob Herring <robh@...nel.org>
> Cc: Sascha Hauer <s.hauer@...gutronix.de>
> Cc: Shawn Guo <shawnguo@...nel.org>
> Cc: devicetree@...r.kernel.org
> Cc: imx@...ts.linux.dev
> Cc: kernel@...electronics.com
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> ---
>  arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
> index 75486e1b0c15f..a0adcd3fe1229 100644
> --- a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
> +++ b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
> @@ -201,7 +201,7 @@ &uart2 {
>  	 * the speed can be increased accordingly.
>  	 */
>  	bluetooth: bluetooth {
> -		compatible = "brcm,bcm43430a1-bt"; /* muRata 1DX */
> +		compatible = "brcm,bcm4329-bt"; /* muRata 1DX or 1YN */

in driver, brcm,bcm43430a1-bt and brcm,bcm4329-bt should be the same.

>  		max-speed = <3000000>;
>  		vbat-supply = <&vcc_3v3>;
>  		vddio-supply = <&vcc_3v3>;
> @@ -222,7 +222,7 @@ &usdhc1 {
>  	status = "okay";
>
>  	brcmf: wifi@1 {
> -		compatible = "brcm,bcm43430a1-fmac", "brcm,bcm4329-fmac"; /* muRata 1DX */
> +		compatible = "brcm,bcm4329-fmac"; /* muRata 1DX or 1YN */

driver have not check "brcm,bcm43430a1-fmac".

Look like driver can work for both CHIP without modify dts.

Frank
>  		reg = <1>;
>  	};
>  };
> --
> 2.51.0
>