[1/4] dt-bindings: soc: qcom: Introduce PMIC GLINK binding

The PMIC GLINK service, running on a coprocessor on some modern Qualcomm
platforms and implement USB Type-C handling and battery management.
This binding describes the component in the OS used to communicate with
the firmware and connect it's resources to those described in the
Devicetree, particularly the USB Type-C controllers relationship with
USB and DisplayPort components.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 .../bindings/soc/qcom/qcom,pmic-glink.yaml    | 98 +++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml

On Wed, Aug 17, 2022 at 08:15:09PM -0700, Bjorn Andersson wrote:
> The PMIC GLINK service, running on a coprocessor on some modern Qualcomm
> platforms and implement USB Type-C handling and battery management.
> This binding describes the component in the OS used to communicate with
> the firmware and connect it's resources to those described in the
> Devicetree, particularly the USB Type-C controllers relationship with
> USB and DisplayPort components.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
>  .../bindings/soc/qcom/qcom,pmic-glink.yaml    | 98 +++++++++++++++++++
>  1 file changed, 98 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml
> new file mode 100644
> index 000000000000..3261f9d27a47
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.yaml
> @@ -0,0 +1,98 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/qcom/qcom,pmic-glink.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm PMIC GLINK firmware interface for battery management, USB
> +  Type-C and other things.
> +
> +maintainers:
> +  - Bjorn Andersson <bjorn.andersson@linaro.org>
> +
> +description:
> +  The PMIC GLINK service, running on a coprocessor on some modern Qualcomm
> +  platforms and implement USB Type-C handling and battery management. This
> +  binding describes the component in the OS used to communicate with the
> +  firmware and connect it's resources to those described in the Devicetree,
> +  particularly the USB Type-C controllers relationship with USB and DisplayPort
> +  components.
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - qcom,sc8180x-pmic-glink
> +          - qcom,sc8280xp-pmic-glink
> +          - qcom,sm8350-pmic-glink
> +      - const: qcom,pmic-glink
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0
> +
> +patternProperties:
> +  '^connector@\d$':
> +    $ref: /schemas/connector/usb-connector.yaml#
> +    unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +
> +additionalProperties: false
> +
> +examples:
> +  - |+
> +    pmic-glink {
> +        compatible = "qcom,sc8280xp-pmic-glink", "qcom,pmic-glink";
> +
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        connector@0 {
> +            compatible = "usb-c-connector";
> +            reg = <0>;

'reg' causes a warning:

Documentation/devicetree/bindings/soc/qcom/qcom,pmic-glink.example.dtb: pmic-glink: connector@0: Unevaluated properties are not allowed ('reg' was unexpected)

> +            power-role = "dual";
> +            data-role = "dual";
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port@0 {
> +                    reg = <0>;
> +                    endpoint {
> +                        remote-endpoint = <&usb_role>;
> +                    };
> +                };
> +
> +                port@1 {
> +                    reg = <1>;
> +
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +
> +                    endpoint@0 {
> +                        reg = <0>;
> +                        remote-endpoint = <&qmp_out>;
> +                    };
> +
> +                    endpoint@1 {
> +                        reg = <1>;
> +                        remote-endpoint = <&displayport_hpd>;
> +                    };
> +                };
> +
> +                port@2 {
> +                    reg = <2>;
> +                    endpoint {
> +                        remote-endpoint = <&sbu_mux>;
> +                    };
> +                };
> +            };
> +        };
> +    };
> +...
> +
> -- 
> 2.35.1
> 
>