Re: [PATCH 1/3] dt-bindings: usb: qcom,dwc3: Add multi-pd bindings for dwc3 qcom

Bjorn Andersson
2021-09-07T13:49:22Z

On Mon 30 Aug 10:54 PDT 2021, Sandeep Maheswaram wrote:

> Add multi pd bindings to set performance state for cx domain
> to maintain minimum corner voltage for USB clocks.
>
> Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
> ---
> Documentation/devicetree/bindings/usb/qcom,dwc3.yaml | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
> index e70afc4..838d9c4 100644
> --- a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
> +++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
> @@ -41,7 +41,18 @@ properties:
>
> power-domains:
> description: specifies a phandle to PM domain provider node
> - maxItems: 1
> + minItems: 1
> + items:
> + - description: optional,cx power domain
> + - description: USB gdsc power domain
> +
> + power-domain-names:
> + items:
> + - const: cx
> + - const: usb_gdsc

But "usb_gdsc" is a subdomain of "cx", why can't we describe this fact
in gcc?

Regards,
Bjorn

> +
> + required-opps:
> + description: specifies the performance state to cx power domain
>
> clocks:
> description:
> --
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