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Message-ID: <YZfWNNkO1Kcghona@robh.at.kernel.org>
Date: Fri, 19 Nov 2021 10:52:04 -0600
From: Rob Herring <robh@...nel.org>
To: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Cc: Marc Zyngier <maz@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Linus Walleij <linus.walleij@...aro.org>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Magnus Damm <magnus.damm@...il.com>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
Philipp Zabel <p.zabel@...gutronix.de>,
devicetree@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
Prabhakar <prabhakar.csengg@...il.com>,
Biju Das <biju.das.jz@...renesas.com>
Subject: Re: [RFC PATCH v3 1/7] dt-bindings: interrupt-controller: Add
Renesas RZ/G2L Interrupt Controller
On Wed, Nov 10, 2021 at 10:58:02PM +0000, Lad Prabhakar wrote:
> Add DT bindings for the Renesas RZ/G2L Interrupt Controller.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> ---
> .../renesas,rzg2l-irqc.yaml | 137 ++++++++++++++++++
> 1 file changed, 137 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..ebe318fe336b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
> @@ -0,0 +1,137 @@
> +# 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 Interrupt Controller
> +
> +maintainers:
> + - Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> + - Geert Uytterhoeven <geert+renesas@...der.be>
> +
> +description: |
> + The RZ/G2L Interrupt Controller is a front-end for the GIC found on Renesas RZ/G2L SoC's
> + - 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
> +
> + interrupt-map:
> + maxItems: 41
> + description: Specifies the mapping from external interrupts to GIC interrupts.
> +
> + interrupt-map-mask:
> + items:
> + - const: 40
> + - const: 0
Are you sure this is what you want? I'd expect <0xff 0x0> here.
Otherwise, it's kind of pointless to list out 41 interrupt-map entries.
> +
> + 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
> + - interrupt-map
> + - interrupt-map-mask
> + - clocks
> + - clock-names
> + - power-domains
> + - resets
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/clock/r9a07g044-cpg.h>
> +
> + irqc: interrupt-controller@...a0000 {
> + compatible = "renesas,r9a07g044-irqc", "renesas,rzg2l-irqc";
> + #interrupt-cells = <2>;
> + #address-cells = <0>;
> + interrupt-controller;
> + reg = <0x110a0000 0x10000>;
> + interrupt-map = <0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
> + <1 0 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
> + <2 0 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
> + <3 0 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
> + <4 0 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
> + <5 0 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
> + <6 0 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
> + <7 0 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
> + <8 0 &gic GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
> + <9 0 &gic GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>,
> + <10 0 &gic GIC_SPI 445 IRQ_TYPE_LEVEL_HIGH>,
> + <11 0 &gic GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>,
> + <12 0 &gic GIC_SPI 447 IRQ_TYPE_LEVEL_HIGH>,
> + <13 0 &gic GIC_SPI 448 IRQ_TYPE_LEVEL_HIGH>,
> + <14 0 &gic GIC_SPI 449 IRQ_TYPE_LEVEL_HIGH>,
> + <15 0 &gic GIC_SPI 450 IRQ_TYPE_LEVEL_HIGH>,
> + <16 0 &gic GIC_SPI 451 IRQ_TYPE_LEVEL_HIGH>,
> + <17 0 &gic GIC_SPI 452 IRQ_TYPE_LEVEL_HIGH>,
> + <18 0 &gic GIC_SPI 453 IRQ_TYPE_LEVEL_HIGH>,
> + <19 0 &gic GIC_SPI 454 IRQ_TYPE_LEVEL_HIGH>,
> + <20 0 &gic GIC_SPI 455 IRQ_TYPE_LEVEL_HIGH>,
> + <21 0 &gic GIC_SPI 456 IRQ_TYPE_LEVEL_HIGH>,
> + <22 0 &gic GIC_SPI 457 IRQ_TYPE_LEVEL_HIGH>,
> + <23 0 &gic GIC_SPI 458 IRQ_TYPE_LEVEL_HIGH>,
> + <24 0 &gic GIC_SPI 459 IRQ_TYPE_LEVEL_HIGH>,
> + <25 0 &gic GIC_SPI 460 IRQ_TYPE_LEVEL_HIGH>,
> + <26 0 &gic GIC_SPI 461 IRQ_TYPE_LEVEL_HIGH>,
> + <27 0 &gic GIC_SPI 462 IRQ_TYPE_LEVEL_HIGH>,
> + <28 0 &gic GIC_SPI 463 IRQ_TYPE_LEVEL_HIGH>,
> + <29 0 &gic GIC_SPI 464 IRQ_TYPE_LEVEL_HIGH>,
> + <30 0 &gic GIC_SPI 465 IRQ_TYPE_LEVEL_HIGH>,
> + <31 0 &gic GIC_SPI 466 IRQ_TYPE_LEVEL_HIGH>,
> + <32 0 &gic GIC_SPI 467 IRQ_TYPE_LEVEL_HIGH>,
> + <33 0 &gic GIC_SPI 468 IRQ_TYPE_LEVEL_HIGH>,
> + <34 0 &gic GIC_SPI 469 IRQ_TYPE_LEVEL_HIGH>,
> + <35 0 &gic GIC_SPI 470 IRQ_TYPE_LEVEL_HIGH>,
> + <36 0 &gic GIC_SPI 471 IRQ_TYPE_LEVEL_HIGH>,
> + <37 0 &gic GIC_SPI 472 IRQ_TYPE_LEVEL_HIGH>,
> + <38 0 &gic GIC_SPI 473 IRQ_TYPE_LEVEL_HIGH>,
> + <39 0 &gic GIC_SPI 474 IRQ_TYPE_LEVEL_HIGH>,
> + <40 0 &gic GIC_SPI 475 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-map-mask = <40 0>;
> + 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>;
> + };
> --
> 2.17.1
>
>
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