RE: [EXT] Re: [PATCH v2 1/2] dt-bindings: phy: mxs-usb-phy: convert to DT schema format

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Hi Krzysztof,

> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Sent: Saturday, June 10, 2023 12:44 AM
> To: Xu Yang <xu.yang_2@xxxxxxx>; robh+dt@xxxxxxxxxx; krzysztof.kozlowski+dt@xxxxxxxxxx; conor+dt@xxxxxxxxxx
> Cc: shawnguo@xxxxxxxxxx; s.hauer@xxxxxxxxxxxxxx; kernel@xxxxxxxxxxxxxx; festevam@xxxxxxxxx; dl-linux-imx <linux-
> imx@xxxxxxx>; linux-phy@xxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-
> usb@xxxxxxxxxxxxxxx; Jun Li <jun.li@xxxxxxx>
> Subject: [EXT] Re: [PATCH v2 1/2] dt-bindings: phy: mxs-usb-phy: convert to DT schema format
>
> Caution: This is an external email. Please take care when clicking links or opening attachments. When in doubt, report the
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>
>
> On 08/06/2023 05:36, Xu Yang wrote:
> > Convert the binding to DT schema format. Besides, this also add other
> > optional properties not contained in txt file.
>
> Why ones do you add?

I add clock, power-domains and phy-3p0-supply to this doc. Because
the txt file should contain these properties but it not. I think the
txt doesn't get update in time.

>
> >
> > Signed-off-by: Xu Yang <xu.yang_2@xxxxxxx>
> >
> > ---
> > Changes in v2:
> >  - change filename to fsl,mxs-usbphy.yaml
> >  - add other optional properties
> >  - narrow fsl,anatop to imx6
> >  - use additionalProperties
> > ---
> >  .../bindings/phy/fsl,mxs-usbphy.yaml          | 128 ++++++++++++++++++
> >  .../devicetree/bindings/phy/mxs-usb-phy.txt   |  33 -----
> >  2 files changed, 128 insertions(+), 33 deletions(-)
> >  create mode 100644 Documentation/devicetree/bindings/phy/fsl,mxs-usbphy.yaml
> >  delete mode 100644 Documentation/devicetree/bindings/phy/mxs-usb-phy.txt
> >
> > diff --git a/Documentation/devicetree/bindings/phy/fsl,mxs-usbphy.yaml
> b/Documentation/devicetree/bindings/phy/fsl,mxs-usbphy.yaml
> > new file mode 100644
> > index 000000000000..1b6b19fdf491
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/phy/fsl,mxs-usbphy.yaml
> > @@ -0,0 +1,128 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id:
> http://devicetree.org/schemas/phy/fsl,mxs-
> usbphy.yaml%23&data=05%7C01%7Cxu.yang_2%40nxp.com%7Ccdb34e27fd17419bbe3608db6908b13d%7C686ea1d3bc2b4
> c6fa92cd99c5c301635%7C0%7C0%7C638219258284008643%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIj
> oiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=4pNCtSE9x4kENZsGf2nq%2F2S8uazubTjeqpSZ
> XyRRVOo%3D&reserved=0
> > +$schema: http://devicetree.org/meta-
> schemas%2Fcore.yaml%23&data=05%7C01%7Cxu.yang_2%40nxp.com%7Ccdb34e27fd17419bbe3608db6908b13d%7C686ea
> 1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C638219258284008643%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM
> DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=QjXo%2FzS6Ntl2RGBScVJfkdIONo6Sa
> psDkcDM5AY9cgQ%3D&reserved=0
> > +
> > +title: Freescale MXS USB Phy Device
> > +
> > +maintainers:
> > +  - Xu Yang <xu.yang_2@xxxxxxx>
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - enum:
> > +          - fsl,imx23-usbphy
> > +          - fsl,vf610-usbphy
> > +          - fsl,imx7ulp-usbphy
>
> Keep the list sorted.

Okay.

>
> > +      - items:
> > +          - enum:
> > +              - fsl,imx28-usbphy
> > +              - fsl,imx6ul-usbphy
> > +              - fsl,imx6sl-usbphy
> > +              - fsl,imx6sx-usbphy
> > +              - fsl,imx6q-usbphy
> > +          - const: fsl,imx23-usbphy
> > +      - items:
> > +          - const: fsl,imx6sll-usbphy
> > +          - const: fsl,imx6ul-usbphy
> > +          - const: fsl,imx23-usbphy
> > +      - items:
> > +          - const: fsl,imx7ulp-usbphy
> > +          - const: fsl,imx6ul-usbphy
> > +      - items:
> > +          - const: fsl,imx8dxl-usbphy
> > +          - const: fsl,imx7ulp-usbphy
> > +
> > +  reg:
> > +    minItems: 1
> > +    maxItems: 2
>
> You should list the items.
>
> > +
> > +  interrupts:
> > +    minItems: 1
> > +    maxItems: 2
>
> You should list the items.

After my check, the maxItems value of reg and interrupts should be 1.
Will change it.

>
> > +
> > +  clocks:
> > +    maxItems: 1
> > +
> > +  '#phy-cells':
> > +    const: 0
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  fsl,anatop:
> > +    description:
> > +      phandle for anatop register, it is only for imx6 SoC series.
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +
> > +  phy-3p0-supply:
> > +    description:
> > +      One of USB PHY's power supply. Can be used to keep a good signal
> > +      quality.
> > +
> > +  fsl,tx-cal-45-dn-ohms:
> > +    description:
> > +      Resistance (in ohms) of switchable high-speed trimming resistor
> > +      connected in parallel with the 45 ohm resistor that terminates
> > +      the DN output signal.
> > +    minimum: 35
> > +    maximum: 54
> > +    default: 45
> > +
> > +  fsl,tx-cal-45-dp-ohms:
> > +    description:
> > +      Resistance (in ohms) of switchable high-speed trimming resistor
> > +      connected in parallel with the 45 ohm resistor that terminates
> > +      the DP output signal.
> > +    minimum: 35
> > +    maximum: 54
> > +    default: 45
> > +
> > +  fsl,tx-d-cal:
> > +    description:
> > +      Current trimming value (as a percentage) of the 17.78 mA TX
> > +      reference current.
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    minimum: 79
> > +    maximum: 119
> > +    default: 100
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - clocks
> > +
> > +allOf:
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          oneOf:
> > +            - enum:
> > +              - fsl,imx6sl-usbphy
>
> It does not look like you tested the bindings, at least after quick
> look. Please run `make dt_binding_check` (see
> Documentation/devicetree/bindings/writing-schema.rst for instructions).
> Maybe you need to update your dtschema and yamllint.

Missed this in v2, but already checked bindings in v3. However, I have
checked schema using dt-doc-validate and dtbs using dt-validate tools.

>
> > +              - fsl,imx6sx-usbphy
> > +              - fsl,imx6sll-usbphy
> > +              - fsl,imx6q-usbphy
> > +              - fsl,vf610-usbphy
> > +            - items:
> > +              - const: fsl,imx6ul-usbphy
> > +              - const: fsl,imx23-usbphy
> > +    then:
> > +      required:
> > +        - fsl,anatop
> > +
> > +additionalProperties: false
> > +
>
>
> Best regards,
> Krzysztof

Thanks,
Xu Yang





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