Re: [PATCH v3 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT with variants

[Stefano Radaelli]

Hi Fabio,

On Fri, Mar 13, 2026 at 01:52:31PM -0300, Fabio Estevam wrote:
> On Fri, Mar 13, 2026 at 1:46 PM Stefano Radaelli
> <stefano.radaelli21@xxxxxxxxx> wrote:
> 
> > Correct. It is not included anywhere at the moment.
> > The Symphony evaluation board uses the IW61x configuration.
> > The imx8mm-var-som-wifi-brcm-legacy.dtsi file is kept as a separate include
> > so that carrier boards using the legacy Broadcom-based SOM revision can
> > include it if needed.
> 
> Then imx8mm-var-som-wifi-brcm-legacy.dtsi is dead code. Nothing includes it.
> 
> I don't think we want a dead dts in the tree.
> 
> IW612 has not been upstreamed, right?
> 
> People using the Broadcom Wi-Fi on the old board may still want to
> continue using it.
> 
> Please don't break it.


Thanks for the feedback!

I might have misunderstood the best approach here. The reason I split the
WiFi/BT configuration into separate dtsi files was to follow the direction
discussed in the previous revision, where we decided to keep support for the
legacy Broadcom-based SOM while moving the configuration out of the
device tree, giving the support for both modules revisions.

However, I see your point that if it is not referenced anywhere it becomes
dead code:
Would it make sense to add a legacy Symphony DTS that includes the Broadcom
configuration, in addition to the current Symphony DTS that uses the IW61x?
This way the existing boards would keep working while the default board
description reflects the currently produced hardware.

Or if you have any other suggestion, I'd be happy to follow it!

Best regards,
Stefano