Re: [PATCH 1/4] dt-bindings: bluetooth: qcom,qcc2072-bt: add bindings for QCC2072

[Yepuri Siddu]

On 6/1/2026 1:49 PM, Krzysztof Kozlowski wrote:
> On 01/06/2026 09:52, Dmitry Baryshkov wrote:
> > On Mon, Jun 01, 2026 at 12:50:00PM +0530, Yepuri Siddu wrote:
> > > On 5/30/2026 6:04 PM, Krzysztof Kozlowski wrote:
> > > > On Fri, May 29, 2026 at 11:23:42PM +0530, Yepuri Siddu wrote:
> > > > > Document the YAML binding schema for the Qualcomm QCC2072 UART-based
> > > > > Bluetooth controller.
> > > >
> > > > Where is the rest?
>
> I repeat the question.
>
>
> > > > > +properties:
> > > > > +  compatible:
> > > > > +    enum:
> > > > > +      - qcom,qcc2072-bt
> > > > > +
> > > > > +required:
> > > > > +  - compatible
> > > > > +
> > > >
> > > > Looks heavily incomplete. Devices do not work without power for example.
> > >
> > > The module receives power through the M.2 edge connector and manages its
> > > own power sequencing internally. Unlike bare Qualcomm Bluetooth SoCs, it
> > > requires no external voltage regulators, enable GPIOs, or clock supply
> > > from the host, so no power-related properties are needed in the binding.
> >
> > If this is a purely M.2 device, then it should not be a part of DT.
>
> Exactly. And even PCI devices need power sequencing, unless this is a
> simple (BT only) device.

QCC2072 is an M.2 E-key chip. As M.2 Power Sequencing changes are being 
upstreamed, we will reupdate our existing patches to align with M.2 
power sequencing approach.
This includes aligning the bindings, DT and also BT driver changes.

Thanks,
Siddu

> Best regards,
> Krzysztof