RE: [PATCH v2 1/2] dt-bindings: usb: Add Intel SoCFPGA USB controller

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> From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Sent: Monday, 24 July, 2023 3:05 PM
> To: Ng, Adrian Ho Yin <adrian.ho.yin.ng@xxxxxxxxx>;
> gregkh@xxxxxxxxxxxxxxxxxxx; robh+dt@xxxxxxxxxx;
> krzysztof.kozlowski+dt@xxxxxxxxxx; conor+dt@xxxxxxxxxx; linux-
> usb@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx;
> Thinh.Nguyen@xxxxxxxxxxxx; p.zabel@xxxxxxxxxxxxxx
> Subject: Re: [PATCH v2 1/2] dt-bindings: usb: Add Intel SoCFPGA USB controller
> 
> On 24/07/2023 08:36, adrian.ho.yin.ng@xxxxxxxxx wrote:
> > From: Adrian Ng Ho Yin <adrian.ho.yin.ng@xxxxxxxxx>
> >
> > Existing binding intel,keembay-dwc3.yaml does not have the required
> > properties for Intel SoCFPGA devices.
> > Introduce new binding description for Intel SoCFPGA USB controller
> > which will be used for current and future SoCFPGA devices.
> >
> > Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@xxxxxxxxx>
> > ---
> >  .../bindings/usb/intel,socfpga-dwc3.yaml      | 84 +++++++++++++++++++
> >  1 file changed, 84 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/usb/intel,socfpga-dwc3.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/usb/intel,socfpga-dwc3.yaml
> > b/Documentation/devicetree/bindings/usb/intel,socfpga-dwc3.yaml
> > new file mode 100644
> > index 000000000000..e36b087c2651
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/usb/intel,socfpga-dwc3.yaml
> > @@ -0,0 +1,84 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/usb/intel,socfpga-dwc3.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Intel SoCFPGA DWC3 USB controller
> > +
> > +maintainers:
> > +  - Adrian Ng Ho Yin <adrian.ho.yin.ng@xxxxxxxxx>
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - enum:
> > +          - intel,agilex5-dwc3
> > +      - const: intel,socfpga-dwc3
> 
> So you did not even wait for my answer? What happened here with this
> compatible? I asked you to change file name, not add intel,socfpga-dwc3.
> Again - why using different style for Agilex? Which style is correct?
> 

The intention is to use a common binding for Intel SoCFPGA products that is using DWC3 controller.
This is done with reference to qcom,dwc3.yaml. 

> > +
> > +  reg:
> > +    description: Offset and length of DWC3 controller register
> 
> What happened here? It wasn't here before.

Remove unnecessary description in V3.

> 
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    items:
> > +      - description: Controller Master/Core clock
> > +      - description: Controller Suspend clock
> > +
> > +  ranges: true
> > +
> > +  resets:
> > +    description: A list of phandles for resets listed in reset-names
> 
> Neither was this useless description, it is obvious.

Remove unnecessary description in V3.

> 
> > +    maxItems: 2
> > +
> > +  reset-names:
> > +    items:
> > +      - const: dwc3
> > +      - const: dwc3-ecc
> > +
> > +  '#address-cells':
> > +    enum: [ 1, 2 ]
> > +
> > +  '#size-cells':
> > +    enum: [ 1, 2 ]
> > +
> > +# Required child node:
> > +
> > +patternProperties:
> > +  "^usb@[0-9a-f]+$":
> > +    $ref: snps,dwc3.yaml#
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - clocks
> > +  - resets
> > +  - ranges
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/interrupt-controller/irq.h>
> > +    #include <dt-bindings/reset/altr,rst-mgr.h>
> > +
> > +    usb@11000000 {
> > +          compatible = "intel,agilex5-dwc3", "intel,socfpga-dwc3";
> 
> Still wrong indentation....
> 

Update indentation in V3

> > +          reg = <0x11000000 0x100000>;
> > +          ranges;
> > +          clocks = <&clkmgr 54>,
> > +                   <&clkmgr 55>;
> > +          resets = <&rst USB0_RESET>, <&rst USB1_RESET>;
> > +          reset-names = "dwc3", "dwc3-ecc";
> > +          #address-cells = <1>;
> > +          #size-cells = <1>;
> > +
> > +          usb@11000000 {
> > +                compatible = "snps,dwc3";
> > +                reg = <0x11000000 0x100000>;
> > +                interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
> > +                dr_mode = "host";
> > +          };
> > +    };
> > +
> 
> Drop trailing line.

Drop trailing line in V3.

> 
> Instead of resending just after your reply, allow for reviewer to respond.
> 

My apologies will wait for reply.

Thank You
Adrian





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