linux-kernel - Re: [PATCH v2 1/2] dt-bindings: PCI: qcom,pcie-ep-sa8255p: Document firmware managed PCIe endpoint

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Message-ID: <CAL_JsqL+PKXYSRHVEZ-Hm4O7gF6g5nPj-6aG066NuiH3Z9S3uA@mail.gmail.com>
Date: Fri, 19 Dec 2025 08:50:46 -0600
From: Rob Herring <robh@...nel.org>
To: Mrinmay Sarkar <mrinmay.sarkar@....qualcomm.com>
Cc: linux-pci@...r.kernel.org, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, linux-kernel@...r.kernel.org, 
	konrad.dybcio@....qualcomm.com, linux-arm-msm@...r.kernel.org, 
	quic_shazhuss@...cinc.com, Bjorn Helgaas <bhelgaas@...gle.com>, 
	Philipp Zabel <p.zabel@...gutronix.de>, 
	Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>, 
	Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>, 
	Krzysztof Wilczyński <kwilczynski@...nel.org>, 
	Rama Krishna <quic_ramkri@...cinc.com>, quic_vbadigan@...cinc.com, 
	Nitesh Gupta <quic_nitegupt@...cinc.com>, Ayiluri Naga Rashmi <quic_nayiluri@...cinc.com>, 
	Bjorn Andersson <andersson@...nel.org>, devicetree@...r.kernel.org, 
	Lorenzo Pieralisi <lpieralisi@...nel.org>, Manivannan Sadhasivam <mani@...nel.org>
Subject: Re: [PATCH v2 1/2] dt-bindings: PCI: qcom,pcie-ep-sa8255p: Document
 firmware managed PCIe endpoint

On Wed, Dec 17, 2025 at 2:52 AM Mrinmay Sarkar
<mrinmay.sarkar@....qualcomm.com> wrote:
>
> On Tue, Dec 16, 2025 at 8:59 PM Rob Herring (Arm) <robh@...nel.org> wrote:
> >
> >
> > On Tue, 16 Dec 2025 19:19:17 +0530, Mrinmay Sarkar wrote:
> > > Document the required configuration to enable the PCIe Endpoint controller
> > > on SA8255p which is managed by firmware using power-domain based handling.
> > >
> > > Signed-off-by: Mrinmay Sarkar <mrinmay.sarkar@....qualcomm.com>
> > > ---
> > >  .../bindings/pci/qcom,pcie-ep-sa8255p.yaml         | 110 +++++++++++++++++++++
> > >  1 file changed, 110 insertions(+)
> > >
> >
> > My bot found errors running 'make dt_binding_check' on your patch:
> >
> > yamllint warnings/errors:
> >
> > dtschema/dtc warnings/errors:
> > Documentation/devicetree/bindings/pci/qcom,pcie-ep-sa8255p.example.dtb: /example-0/soc/pcie-ep@...0000: failed to match any schema with compatible: ['qcom,sa8255p-pcie-ep']
> >
> > doc reference errors (make refcheckdocs):
> >
> > See https://patchwork.kernel.org/project/devicetree/patch/20251216-firmware_managed_ep-v2-1-7a731327307f@oss.qualcomm.com
> >
> > The base for the series is generally the latest rc1. A different dependency
> > should be noted in *this* patch.
> >
> > If you already ran 'make dt_binding_check' and didn't see the above
> > error(s), then make sure 'yamllint' is installed and dt-schema is up to
> > date:
> >
> > pip3 install dtschema --upgrade
> >
> > Please check and re-submit after running the above command yourself. Note
> > that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> > your schema. However, it must be unset to test all examples with your schema.
> >
> Thanks Rob for sharing this.
>
> I already ran 'make dt_binding_check' but somehow I didn't see this error.
> Maybe I need to upgrade all the tools ..

The answer is provided above already. Don't set DT_SCHEMA_FILES.

Rob