RE: [PATCH v3 1/5] dt-bindings: interrupt-controller: Add Renesas RZ/G2L Interrupt Controller

[Biju Das <biju.das.jz@bp.renesas.com>]

Hi Prabhakar,

> Subject: [PATCH v3 1/5] dt-bindings: interrupt-controller: Add Renesas
> RZ/G2L Interrupt Controller
> 
> Add DT bindings for the Renesas RZ/G2L Interrupt Controller.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
>  .../renesas,rzg2l-irqc.yaml                   | 134 ++++++++++++++++++
>  1 file changed, 134 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..02bfd631e532
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg
> +++ 2l-irqc.yaml
> @@ -0,0 +1,134 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> +---
> +$id:
> +
> +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':
> +    description: The first cell should contain interrupt number and the
> second cell
> +                 is used to specify the flag.
> +    const: 2

As DT user will fill interrupt cells only for IRQ case, for GPIOINT case it 
Will be handled in pin controller and pin controller maps to TINT which is 
internal to this driver,

So do we need to explicitly mention it as Interrupt number of IRQ here??

Cheers,
Biju

> +
> +
> +  '#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
> +
> +unevaluatedProperties: false
> +
> +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";
> +            reg = <0x110a0000 0x10000>;
> +            #interrupt-cells = <2>;
> +            #address-cells = <0>;
> +            interrupt-controller;
> +            interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 445 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 447 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 448 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 449 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 450 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 451 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 452 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 453 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 454 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 455 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 456 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 457 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 458 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 459 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 460 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 461 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 462 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 463 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 464 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 465 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 466 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 467 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 468 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 469 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 470 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 471 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 472 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 473 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 474 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 475 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cpg CPG_MOD R9A07G044_IA55_CLK>,
> +                     <&cpg CPG_MOD R9A07G044_IA55_PCLK>;
> +            clock-names = "clk", "pclk";
> +            power-domains = <&cpg>;
> +            resets = <&cpg R9A07G044_IA55_RESETN>;
> +    };
> --
> 2.25.1