Re: [RFC PATCH 3/9] dt-bindings: usb: generic-ohci: increase maximum clocks

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Hi Peter,

Am Mittwoch, 28. Juli 2021, 14:26:00 CEST schrieb Peter Geis:
> The rk3568 generic ohci controller has four clocks.
> Increase the maximum clocks in the documentation to account for this.
> 
> Signed-off-by: Peter Geis <pgwipeout@xxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/usb/generic-ohci.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> index 569777a76c90..850996e6f451 100644
> --- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> +++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> @@ -59,7 +59,7 @@ properties:
>  
>    clocks:
>      minItems: 1
> -    maxItems: 3
> +    maxItems: 4
>      description: |
>        In case the Renesas R-Car Gen3 SoCs:
>          - if a host only channel: first clock should be host.
> 

In the patch adding the usb nodes, I see that this 4th clock references
the clock generated inside usbphy itself.

Does the usb controller actually use that or is this just a way to
enable the usbphy clock, which in that case should maybe just happen
on phy-power-on in the phy driver?


Heiko





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