Re: [PATCH 23/28] dt-bindings: interrupt-controller: Convert mrvl,intc to json-schema

Rob Herring
2020-03-27T19:42:14Z

On Tue, Mar 17, 2020 at 10:39:17AM +0100, Lubomir Rintel wrote:
> Convert the mrvl,intc binding to DT schema format using json-schema.
>
> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
> ---
> .../interrupt-controller/mrvl,intc.txt | 64 --------
> .../interrupt-controller/mrvl,intc.yaml | 144 ++++++++++++++++++
> 2 files changed, 144 insertions(+), 64 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.txt
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.yaml
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.txt b/Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.txt
> deleted file mode 100644
> index a0ed02725a9d7..0000000000000
> --- a/Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.txt
> +++ /dev/null
> @@ -1,64 +0,0 @@
> -* Marvell MMP Interrupt controller
> -
> -Required properties:
> -- compatible : Should be
> - "mrvl,mmp-intc" on Marvel MMP,
> - "mrvl,mmp2-intc" along with "mrvl,mmp2-mux-intc" on MMP2 or
> - "marvell,mmp3-intc" with "mrvl,mmp2-mux-intc" on MMP3
> -- reg : Address and length of the register set of the interrupt controller.
> - If the interrupt controller is intc, address and length means the range
> - of the whole interrupt controller. The "marvell,mmp3-intc" controller
> - also has a secondary range for the second CPU core. If the interrupt
> - controller is mux-intc, address and length means one register. Since
> - address of mux-intc is in the range of intc. mux-intc is secondary
> - interrupt controller.
> -- reg-names : Name of the register set of the interrupt controller. It's
> - only required in mux-intc interrupt controller.
> -- interrupts : Should be the port interrupt shared by mux interrupts. It's
> - only required in mux-intc interrupt controller.
> -- interrupt-controller : Identifies the node as an interrupt controller.
> -- #interrupt-cells : Specifies the number of cells needed to encode an
> - interrupt source.
> -- mrvl,intc-nr-irqs : Specifies the number of interrupts in the interrupt
> - controller.
> -- mrvl,clr-mfp-irq : Specifies the interrupt that needs to clear MFP edge
> - detection first.
> -
> -Example:
> - intc: interrupt-controller@d4282000 {
> - compatible = "mrvl,mmp2-intc";
> - interrupt-controller;
> - #interrupt-cells = <1>;
> - reg = <0xd4282000 0x1000>;
> - mrvl,intc-nr-irqs = <64>;
> - };
> -
> - intcmux4@d4282150 {
> - compatible = "mrvl,mmp2-mux-intc";
> - interrupts = <4>;
> - interrupt-controller;
> - #interrupt-cells = <1>;
> - reg = <0x150 0x4>, <0x168 0x4>;
> - reg-names = "mux status", "mux mask";
> - mrvl,intc-nr-irqs = <2>;
> - };
> -
> -* Marvell Orion Interrupt controller
> -
> -Required properties
> -- compatible : Should be "marvell,orion-intc".
> -- #interrupt-cells: Specifies the number of cells needed to encode an
> - interrupt source. Supported value is <1>.
> -- interrupt-controller : Declare this node to be an interrupt controller.
> -- reg : Interrupt mask address. A list of 4 byte ranges, one per controller.
> - One entry in the list represents 32 interrupts.
> -
> -Example:
> -
> - intc: interrupt-controller {
> - compatible = "marvell,orion-intc", "marvell,intc";
> - interrupt-controller;
> - #interrupt-cells = <1>;
> - reg = <0xfed20204 0x04>,
> - <0xfed20214 0x04>;
> - };
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.yaml
> new file mode 100644
> index 0000000000000..f0644f7d7e1d2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.yaml
> @@ -0,0 +1,144 @@
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/interrupt-controller/mrvl,intc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell MMP/Orion Interrupt controller bindings
> +
> +maintainers:
> + - devicetree@vger.kernel.org
> +
> +allOf:
> + - $ref: /schemas/interrupt-controller.yaml#

Drop this. It is already applied based on matching on the node name.

> + - if:
> + properties:
> + compatible:
> + not:
> + contains:
> + const: marvell,orion-intc
> + then:
> + required:
> + - mrvl,intc-nr-irqs
> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - mrvl,mmp-intc
> + - mrvl,mmp2-intc
> + then:
> + properties:
> + reg:
> + minItems: 1
> + maxItems: 1

Drop minItems, as just 'maxItems: 1' is enough.

> + - if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - marvell,mmp3-intc
> + - mrvl,mmp2-mux-intc
> + then:
> + properties:
> + reg:
> + minItems: 2
> + maxItems: 2

Just 'minItems: 2'.

> + - if:
> + properties:
> + compatible:
> + contains:
> + const: marvell,orion-intc
> + then:
> + properties:
> + reg:
> + minItems: 1
> + maxItems: 2

Normally, for a compatible this would not vary...

In any case, move this to the main section and drop this if.

> + - if:
> + properties:
> + compatible:
> + contains:
> + const: mrvl,mmp2-mux-intc
> + then:
> + properties:
> + interrupts:
> + minItems: 1
> + maxItems: 1

Just 'maxItems'

> + reg-names:
> + minItems: 2
> + maxItems: 2

These are redundant as 'items' size implies this.

> + items:
> + - const: 'mux status'
> + - const: 'mux mask'

Move this to the main section.

> + required:
> + - interrupts
> + else:
> + properties:
> + interrupts: false
> +
> +properties:
> + '#interrupt-cells':
> + const: 1
> +
> + compatible:
> + enum:
> + - mrvl,mmp-intc
> + - mrvl,mmp2-intc
> + - marvell,mmp3-intc
> + - marvell,orion-intc
> + - mrvl,mmp2-mux-intc
> +
> + reg: true
> +
> + reg-names: true
> +
> + interrupts: true
> +
> + interrupt-controller: true
> +
> + mrvl,intc-nr-irqs:
> + description: |
> + Specifies the number of interrupts in the interrupt controller.
> + $ref: /schemas/types.yaml#/definitions/uint32

Is there a max number?

> +
> + mrvl,clr-mfp-irq:
> + description: |
> + Specifies the interrupt that needs to clear MFP edge detection first.
> + $ref: /schemas/types.yaml#/definitions/uint32

Constraints?

> +
> +required:
> + - '#interrupt-cells'
> + - compatible
> + - reg
> + - interrupt-controller
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + interrupt-controller@d4282000 {
> + compatible = "mrvl,mmp2-intc";
> + interrupt-controller;
> + #interrupt-cells = <1>;
> + reg = <0xd4282000 0x1000>;
> + mrvl,intc-nr-irqs = <64>;
> + };
> +
> + interrupt-controller@d4282150 {
> + compatible = "mrvl,mmp2-mux-intc";
> + interrupts = <4>;
> + interrupt-controller;
> + #interrupt-cells = <1>;
> + reg = <0x150 0x4>, <0x168 0x4>;
> + reg-names = "mux status", "mux mask";
> + mrvl,intc-nr-irqs = <2>;
> + };
> + - |
> + interrupt-controller@fed20204 {
> + compatible = "marvell,orion-intc";
> + interrupt-controller;
> + #interrupt-cells = <1>;
> + reg = <0xfed20204 0x04>,
> + <0xfed20214 0x04>;
> + };
> +
> +...
> --
> 2.25.1
>