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

[Stefano Radaelli]

Hi Frank,

On Tue, Feb 24, 2026 at 04:30:28PM -0500, Frank Li wrote:
> 
> If can't auto detected, I think keep old dts, use overlay change to new
> one.
> 
> For example, board.dtb
> 
> you can rename board.dtb to board-revA.dtb
> new board.dtb, by apply verb.dtso to board-revA.dtb.  Or you direct use
> board-revb.dtb.
> 
> If change is big, you can create new one.
> 
> Frank

Thanks for the clarification, I understand that the preferred approach
would be to keep the existing Broadcom-based DTS unchanged and add a
separate description for the IW612-based revision.

My only concern is avoiding confusion in mainline.

The Broadcom-based SOM revision is obsolete and no longer manufactured.
All currently produced VAR-SOM-MX8MM modules use the IW612 module, and
this will remain the only production hardware going forward.

I would like to avoid giving the impression that we are actively
supporting two parallel SOM revisions in mainline, while in reality
only the IW612-based hardware exists in production.

For this reason, would it be acceptable to:

  - move the Broadcom-based description into an explicitly legacy
    revision-specific DTS (kept unchanged for existing users), and
  - update the main imx8mm-var-som DTS to reflect the current
    IW612-based hardware?

This would preserve compatibility for older boards, but ensure that
the primary DTS in mainline represents the hardware that is actually
produced and aligns with the rest of the VAR-SOM family.

Thank you again for your support and your patience!

Best regards,
Stefano