Re: [PATCH v1 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT configuration

[Frank Li <Frank.li@nxp.com>]

On Tue, Feb 17, 2026 at 08:42:19PM +0100, Stefano Radaelli wrote:
> Hi Fabio!
>
> On Tue, Feb 17, 2026 at 03:59:33PM -0300, Fabio Estevam wrote:
> >
> > What about users who still have boards with the Broadcom Wi-Fi chip?
> >
> > Will Wifi on the old boards stop working?
>
> The Broadcom-based WiFi module was used on earlier revisions of the
> VAR-SOM-MX8MM. That hardware revision is no longer in production and
> is not available for new orders. All currently manufactured and shipped
> VAR-SOM-MX8MM modules integrate the NXP IW61x instead.

This common problem, we met similar case. After replace new compenent, it
should be new boards, or new revision.

I don't suggest directly replace it to broken old one. You can create dt
overlay files for new boards.

Krzysztof Kozlowski:
	how about other vendor handle similar case? Any guide line for
that?

Frank

>
> Since the wireless module is soldered on the SOM and not selectable via
> the carrier board, the device tree must reflect the hardware that is
> actually present on the module. This series aligns mainline with the
> current production revision of the SOM.
>
> Customers using older hardware revisions still have access to the
> corresponding device tree descriptions in earlier kernel versions.
> Upstream support is being aligned with the actively produced hardware.
>
> The same applies to the Ethernet PHY update included in this series,
> which reflects the PHY used on the current (and future) SOM revision.
>
> Best regards,
> Stefano