Re: [PATCH 4/7] dt-bindings: usb: add the Renesas USBF controller binding

Herve Codina
2022-11-10T11:47:10Z

Hi Krzysztof,

On Mon, 7 Nov 2022 19:24:01 +0100
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote:

> On 07/11/2022 14:58, Herve Codina wrote:
> > The Renesas USBF controller is an USB2.0 device controller
> > (UDC) available in Renesas r9a06g032 SoC (RZ/N1 family).
> >
> > Signed-off-by: Herve Codina <herve.codina@bootlin.com>
> > ---
> > .../devicetree/bindings/usb/renesas,usbf.yaml | 64 +++++++++++++++++++
> > 1 file changed, 64 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/usb/renesas,usbf.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/usb/renesas,usbf.yaml b/Documentation/devicetree/bindings/usb/renesas,usbf.yaml
> > new file mode 100644
> > index 000000000000..f2b146d9d37b
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/usb/renesas,usbf.yaml
> > @@ -0,0 +1,64 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/usb/renesas,usbf.yaml#
>
> Filename based on compatible, so renesas,rzn1-usbf.yaml.

Will be fixed in the v2 series.

>
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Renesas USBF (USB Function) controller binding
> > +
> > +description: |
> > + The Renesas USBF controller is an USB2.0 device
> > + controller (UDC).
> > +
> > +maintainers:
> > + - Herve Codina <herve.codina@bootlin.com>
> > +
> > +properties:
> > + compatible:
> > + oneOf:
>
> You have only one possibility, so oneOf is not needed. Unless you
> already predict it will grow with new incompatible lists?

No new compatible planned right now. So, oneOf will be removed
in the v2 series.

>
> > + - items:
> > + - enum:
> > + - renesas,r9a06g032-usbf
> > + - const: renesas,rzn1-usbf
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + clocks:
> > + items:
> > + - description: Internal bus clock (AHB) for Function
> > + - description: Internal bus clock (AHB) for Power Management
>
> Blank line

Will be fixed in the v2 series

>
> > + clock-names:
> > + items:
> > + - const: hclkf
> > + - const: hclkpm
> > +
> > + interrupts:
> > + items:
> > + - description: The USBF EPC interrupt
> > + - description: The USBF AHB-EPC interrupt
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - clocks
> > + - clock-names
> > + - interrupts
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/interrupt-controller/arm-gic.h>
> > + #include <dt-bindings/clock/r9a06g032-sysctrl.h>
> > +
> > + usb@4001e000 {
> > + compatible = "renesas,r9a06g032-usbf", "renesas,rzn1-usbf";
> > + reg = <0x4001e000 0x2000>;
> > + interrupts =
>
> No need for line break. It's not helping in readability.

Will be fixed in the v2 series

>
>
> > + <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&sysctrl R9A06G032_HCLK_USBF>,
> > + <&sysctrl R9A06G032_HCLK_USBPM>;
> > + clock-names = "hclkf", "hclkpm";
> > + };
>
> Best regards,
> Krzysztof
>

Thanks for the review,
Hervé

--
Hervé Codina, Bootlin
Embedded Linux and Kernel engineering