Re: [PATCH v3 15/15] dt-bindings: usb: Convert BDC to YAML

[Rob Herring <robh@xxxxxxxxxx>]

On Tue, Dec 07, 2021 at 04:37:26PM -0800, Florian Fainelli wrote:
> Convert the Broadcom BDC device controller Device Tree binding to YAML
> to help with validation.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
> ---
>  .../devicetree/bindings/usb/brcm,bdc.txt      | 29 ------------
>  .../devicetree/bindings/usb/brcm,bdc.yaml     | 46 +++++++++++++++++++
>  MAINTAINERS                                   |  2 +-
>  3 files changed, 47 insertions(+), 30 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/usb/brcm,bdc.txt
>  create mode 100644 Documentation/devicetree/bindings/usb/brcm,bdc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/usb/brcm,bdc.txt b/Documentation/devicetree/bindings/usb/brcm,bdc.txt
> deleted file mode 100644
> index c9f52b97cef1..000000000000
> --- a/Documentation/devicetree/bindings/usb/brcm,bdc.txt
> +++ /dev/null
> @@ -1,29 +0,0 @@
> -Broadcom USB Device Controller (BDC)
> -====================================
> -
> -Required properties:
> -
> -- compatible: must be one of:
> -                "brcm,bdc-udc-v2"
> -                "brcm,bdc"
> -- reg: the base register address and length
> -- interrupts: the interrupt line for this controller
> -
> -Optional properties:
> -
> -On Broadcom STB platforms, these properties are required:
> -
> -- phys: phandle to one or two USB PHY blocks
> -        NOTE: Some SoC's have a single phy and some have
> -        USB 2.0 and USB 3.0 phys
> -- clocks: phandle to the functional clock of this block
> -
> -Example:
> -
> -        bdc@f0b02000 {
> -                compatible = "brcm,bdc-udc-v2";
> -                reg = <0xf0b02000 0xfc4>;
> -                interrupts = <0x0 0x60 0x0>;
> -                phys = <&usbphy_0 0x0>;
> -                clocks = <&sw_usbd>;
> -        };
> diff --git a/Documentation/devicetree/bindings/usb/brcm,bdc.yaml b/Documentation/devicetree/bindings/usb/brcm,bdc.yaml
> new file mode 100644
> index 000000000000..48831b62ab31
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/brcm,bdc.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/brcm,bdc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Broadcom USB Device Controller (BDC)
> +
> +maintainers:
> +  - Al Cooper <alcooperx@xxxxxxxxx>
> +  - Florian Fainelli <f.fainelli@xxxxxxxxx>
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - brcm,bdc-udc-v2
> +          - brcm,bdc
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts: true
> +
> +  phys:
> +    $ref: "/schemas/types.yaml#/definitions/phandle-array"

Already has a type. And we've lost how many and what each one is.

> +
> +  clocks:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +        bdc@f0b02000 {

usb@...

> +                compatible = "brcm,bdc-udc-v2";
> +                reg = <0xf0b02000 0xfc4>;
> +                interrupts = <0x0 0x60 0x0>;
> +                phys = <&usbphy_0 0x0>;
> +                clocks = <&sw_usbd>;
> +        };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 2109b6fe8ea3..b18c7fa42a4f 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3679,7 +3679,7 @@ M:	Al Cooper <alcooperx@xxxxxxxxx>
>  L:	linux-usb@xxxxxxxxxxxxxxx
>  L:	bcm-kernel-feedback-list@xxxxxxxxxxxx
>  S:	Maintained
> -F:	Documentation/devicetree/bindings/usb/brcm,bdc.txt
> +F:	Documentation/devicetree/bindings/usb/brcm,bdc.yaml
>  F:	drivers/usb/gadget/udc/bdc/
>  
>  BROADCOM BMIPS CPUFREQ DRIVER
> -- 
> 2.25.1
> 
>