linux-kernel - [PATCH RFC 1/5] dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/G2UL SoC

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Date:   Mon,  7 Nov 2022 17:53:01 +0000
From:   Prabhakar <prabhakar.csengg@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     linux-gpio@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Prabhakar <prabhakar.csengg@...il.com>,
        Biju Das <biju.das.jz@...renesas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH RFC 1/5] dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/G2UL SoC

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Document RZ/G2UL (R9A07G043) IRQC bindings. The RZ/G2UL IRQC block is
identical to one found on the RZ/G2L SoC. No driver changes are
required as generic compatible string "renesas,rzg2l-irqc" will be
used as a fallback.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
Note, renesas,r9a07g043u-irqc is added we have slight difference's compared to RZ/Five
- G2UL IRQCHIP (hierarchical IRQ domain) -> GIC where as on RZ/Five we have PLIC (chained interrupt
domain) -> RISCV INTC
- On the RZ/Five we have additional registers for IRQC block
- On the RZ/Five we have BUS_ERR_INT which needs to be handled by IRQC
---
 .../bindings/interrupt-controller/renesas,rzg2l-irqc.yaml        | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
index 33b90e975e33..8f3678a82ba4 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
@@ -26,6 +26,7 @@ properties:
   compatible:
     items:
       - enum:
+          - renesas,r9a07g043u-irqc   # RZ/G2UL
           - renesas,r9a07g044-irqc    # RZ/G2{L,LC}
           - renesas,r9a07g054-irqc    # RZ/V2L
       - const: renesas,rzg2l-irqc
-- 
2.25.1