Re: [PATCH v3 7/7] dt-bindings: PCI: intel,lgm-pcie: Add atu resource

From: Rob Herring (Arm)

Date: Wed Apr 01 2026 - 06:53:34 EST



On Wed, 01 Apr 2026 11:31:43 +0200, Florian Eckert wrote:
> The 'atu' information is already set in the dwc core, if it is specified
> in the devicetree. The driver uses its own default, if not set in the
> devicetree. This information is hardware specific and should therefore be
> maintained in the devicetree rather than in the source.
>
> To be backward compatibile, this field is not mandatory. If 'atu'
> resource is not specified in the devicetree, the driver’s default value
> is used.
>
> Old DTS entry for PCIe:
>
> reg = <0xd1000000 0x1000>,
> <0xd3000000 0x20000>,
> <0xd0c41000.0x1000>;
> reg-names = "dbi", "config", "app";
>
> New DTS entry for PCIe:
>
> reg = <0xd1000000 0x1000>,
> <0xd10c0000 0x1000>,
> <0xd3000000 0x20000>,
> <0xd0c41000.0x1000>;
> reg-names = "dbi", "atu", "config", "app";
>
> Signed-off-by: Florian Eckert <fe@xxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/pci/intel-gw-pcie.yaml | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/intel-gw-pcie.example.dtb: pcie@d0e00000 (intel,lgm-pcie): reg-names:1: 'config' was expected
from schema $id: http://devicetree.org/schemas/pci/intel-gw-pcie.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/intel-gw-pcie.example.dtb: pcie@d0e00000 (intel,lgm-pcie): reg-names:2: 'app' was expected
from schema $id: http://devicetree.org/schemas/pci/intel-gw-pcie.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/intel-gw-pcie.example.dtb: pcie@d0e00000 (intel,lgm-pcie): reg-names:3: 'atu' was expected
from schema $id: http://devicetree.org/schemas/pci/intel-gw-pcie.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260401-pcie-intel-gw-v3-7-63b008c5b7b2@xxxxxxxxxx

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.