[PATCH v4 1/2] dt-bindings: PCI: dwc: Add vaux regulator
Rob Herring (Arm)
robh at kernel.org
Tue Aug 19 01:30:14 PDT 2025
On Tue, 19 Aug 2025 15:16:29 +0800, Richard Zhu wrote:
> Refer to PCIe CEM r6.0, sec 2.3 WAKE# Signal, WAKE# signal is only
> asserted by the Add-in Card when all its functions are in D3Cold state
> and at least one of its functions is enabled for wakeup generation.
>
> The 3.3V auxiliary power (+3.3Vaux) must be present and used for wakeup
> process. Since the main power supply would be gated off to let Add-in
> Card to be in D3Cold, add the vaux and keep it enabled to power up WAKE#
> circuit for the entire PCIe controller lifecycle when WAKE# is supported.
>
> Signed-off-by: Richard Zhu <hongxing.zhu at nxp.com>
> ---
> .../devicetree/bindings/pci/snps,dw-pcie-common.yaml | 6 ++++++
> 1 file changed, 6 insertions(+)
>
My bot found errors running 'make dt_binding_check' on your patch:
yamllint warnings/errors:
dtschema/dtc warnings/errors:
doc reference errors (make refcheckdocs):
See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250819071630.1813134-2-hongxing.zhu@nxp.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.
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