Re: [PATCH v3 5/7] dt-bindings: usb: Add Qualcomm PMIC TCPM YAML schema

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On Mon, Nov 8, 2021 at 12:58 PM Bryan O'Donoghue
<bryan.odonoghue@xxxxxxxxxx> wrote:
>
> On 08/11/2021 17:13, Rob Herring wrote:
> > Looks like the h/w is all part of a
> > PMIC, so it should be part of the PMIC binding and probably merged with
> > one of the nodes these phandles point to.
>
> Not sure I really follow you here.
>
> The existing PMIC dts arch/arm64/boot/dts/qcom/pm8150b.dtsi has:
>
> pm8150b_gpios: gpio@c000 {
>      compatible = "qcom,pm8150b-gpio";
> }
> Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
>
> and
>
> pm8150b_adc_tm: adc-tm@3500 {
>      compatible = "qcom,spmi-adc-tm5";
> };
> Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml
>
> to which I'm adding :
>
> pm8150b_typec: typec@1500 {
>      compatible = "qcom,pm8150b-typec";
> };
>
> Documentation/devicetree/bindings/usb/qcom,pmic-typec.yaml
>
> pm8150b_pdphy: pdphy@1700 {
>      compatible = "qcom,pm8150b-pdphy";
> };
>
> Documentation/devicetree/bindings/usb/qcom,pmic-pdphy.yaml

>From what I gather, there is not a 3rd h/w device this binding
describes, but it is just a collection of all the data you happen to
want for your driver. That's assuming a specific structure for a
specific OS. Why can't most of this binding be part of
"qcom,pm8150b-typec" instead of making up some virtual device?

Rob



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