Re: [RFC PATCH v4 1/5] dt-bindings: interrupt-controller: Add Renesas RZ/G2L Interrupt Controller

Krzysztof Kozlowski
2022-03-17T09:45:06Z

On 17/03/2022 02:24, Lad Prabhakar wrote:
> Add DT bindings for the Renesas RZ/G2L Interrupt Controller.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> .../renesas,rzg2l-irqc.yaml | 131 ++++++++++++++++++
> 1 file changed, 131 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
> new file mode 100644
> index 000000000000..a14492ec9235
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
> @@ -0,0 +1,131 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/interrupt-controller/renesas,rzg2l-irqc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/G2L (and alike SoC's) Interrupt Controller (IA55)
> +
> +maintainers:
> + - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> + - Geert Uytterhoeven <geert+renesas@glider.be>
> +
> +description: |
> + IA55 performs various interrupt controls including synchronization for the external
> + interrupts of NMI, IRQ, and GPIOINT and the interrupts of the built-in peripheral
> + interrupts output by each IP. And it notifies the interrupt to the GIC
> + - IRQ sense select for 8 external interrupts, mapped to 8 GIC SPI interrupts
> + - GPIO pins used as external interrupt input pins, mapped to 32 GIC SPI interrupts
> + - NMI edge select (NMI is not treated as NMI exception and supports fall edge and
> + stand-up edge detection interrupts)
> +
> +allOf:
> + - $ref: /schemas/interrupt-controller.yaml#
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - renesas,r9a07g044-irqc # RZ/G2L
> + - const: renesas,rzg2l-irqc
> +
> + '#interrupt-cells':
> + const: 2
> +
> + '#address-cells':
> + const: 0
> +
> + interrupt-controller: true
> +
> + reg:
> + maxItems: 1> +
> + interrupts:
> + maxItems: 41
> +
> + clocks:
> + maxItems: 2
> +
> + clock-names:
> + items:
> + - const: clk
> + - const: pclk
> +
> + power-domains:
> + maxItems: 1
> +
> + resets:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - '#interrupt-cells'
> + - '#address-cells'
> + - interrupt-controller
> + - reg
> + - interrupts
> + - clocks
> + - clock-names
> + - power-domains
> + - resets
> +
> +additionalProperties: false

This should be rather unevaluatedProperties and remove
interrupt-controller:true from properties.

> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/clock/r9a07g044-cpg.h>
> +
> + irqc: interrupt-controller@110a0000 {
> + compatible = "renesas,r9a07g044-irqc", "renesas,rzg2l-irqc";
> + #interrupt-cells = <2>;
> + #address-cells = <0>;
> + interrupt-controller;
> + reg = <0x110a0000 0x10000>;

Put the reg after compatible in DTS code. The ordering of properties in
bindings is a bit odd, but I wasn't following order by myself, so cannot
complain. :)

Best regards,
Krzysztof