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

[Manivannan Sadhasivam]

On Wed, Sep 16, 2026 at 04:19:16AM -0500, Bartosz Golaszewski wrote:
> 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?
> 

Yeah sure!

- Mani

-- 
மணிவண்ணன் சதாசிவம்