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

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Message-ID: <aYtSV8oynehECLPM@lizhi-Precision-Tower-5810>
Date: Tue, 10 Feb 2026 10:44:23 -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 09:41:24PM +0100, Marek Vasut wrote:
> On 2/9/26 8:17 PM, Frank Li wrote:
>
> Hello Frank,
>
> > > 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.
> Sure, the driver can work even with the current DT, but the DT isn't
> accurate as it describes compatible string specifically for the 1DX part.
> This change makes the DT use more generic compatible which fits both 1DX and
> 1YN parts. And it also fixes the comment accordingly.

Okay, can you descript more clear at commit message, especially how driver
can auto detect 1DX and 1YN.

Frank