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SubjectRe: [PATCH v2 1/3] dt-bindings: PCI: imx6: convert the imx pcie controller to dtschema
On Fri, Aug 27, 2021 at 02:42:58PM +0800, Richard Zhu wrote:
> Convert the fsl,imx6q-pcie.txt into a schema.
> - ranges property should be grouped by region, with no functional
> changes.
> - only one propert is allowed in the compatible string, remove
> "snps,dw-pcie".
>
> Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
> ---
> .../bindings/pci/fsl,imx6q-pcie.txt | 100 ---------
> .../bindings/pci/fsl,imx6q-pcie.yaml | 202 ++++++++++++++++++
> MAINTAINERS | 2 +-
> 3 files changed, 203 insertions(+), 101 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
> create mode 100644 Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
>
> diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt

> -Optional properties:
> -- fsl,tx-deemph-gen1: Gen1 De-emphasis value. Default: 0
> -- fsl,tx-deemph-gen2-3p5db: Gen2 (3.5db) De-emphasis value. Default: 0

> diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml

> + fsl,tx-deemph-gen1:
> + description: Gen1 De-emphasis value (optional required).
> + $ref: /schemas/types.yaml#/definitions/uint32
> + default: 0
> +
> + fsl,tx-deemph-gen2-3p5db:
> + description: Gen2 (3.5db) De-emphasis value (optional required).
> + $ref: /schemas/types.yaml#/definitions/uint32
> + default: 0

What does "optional required" mean in all these properties?
"Optional" is the opposite of "required."

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