Re: [PATCH 3/5] power: sequencing: pcie-m2: Create auxiliary device for the M.2 BT interface

[Bartosz Golaszewski]

On Tue, 15 Sep 2026 16:24:04 +0200, Manivannan Sadhasivam via B4 Relay
<devnull+manivannan.sadhasivam.oss.qualcomm.com@xxxxxxxxxx> said:
> From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxxxxxxxx>
>
> Currently, the driver instantiates the BT interface of the WCN6855 and
> WCN7850 combo modules by creating a devicetree node at runtime using an
> of_changeset, with the compatible passed through the PCI ID table. But this
> method of creating a devicetree node just for matching with the driver is
> not recommended.
>
> So create an auxiliary device for the BT interface instead. The serdev
> transport is still allocated here and handed over to the Bluetooth driver
> through the auxiliary device, along with the power sequencing target used
> to power up the controller. Also extend the provider match so that the
> auxiliary device created for this connector is matched as its power
> sequencing consumer.
>
> Since the runtime node creation is now gone, select AUXILIARY_BUS in
> place of OF_DYNAMIC.
>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxxxxxxxx>
> ---

That's some nice stuff, thanks for doing it!

It looks like there's no build-time dependency on this, only run-time? Can I
take it independently?

Bart