linux-kernel - [PATCH v3 2/3] dt-bindings: interrupt-controller: add UltraRISC DP1000 PLIC

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Message-ID: <20251014154100.168236-3-lzampier@redhat.com>
Date: Tue, 14 Oct 2025 16:40:56 +0100
From: Lucas Zampieri <lzampier@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Charles Mirabile <cmirabil@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Samuel Holland <samuel.holland@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	Vivian Wang <dramforever@...e.com>,
	devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	Lucas Zampieri <lzampier@...hat.com>
Subject: [PATCH v3 2/3] dt-bindings: interrupt-controller: add UltraRISC DP1000 PLIC

From: Charles Mirabile <cmirabil@...hat.com>

Add compatible strings for the PLIC found in UltraRISC DP1000 SoC.

The PLIC is part of the UR-CP100 core and has a hardware bug requiring
a workaround, so the driver will match on the more generic core-specific
compatible (ultrarisc,cp100-plic) to apply the quirk across all SoCs
using UR-CP100 cores.

Signed-off-by: Charles Mirabile <cmirabil@...hat.com>
Signed-off-by: Lucas Zampieri <lzampier@...hat.com>
---
 .../bindings/interrupt-controller/sifive,plic-1.0.0.yaml       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
index 5b827bc24301..34591d64cca3 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
@@ -74,6 +74,9 @@ properties:
               - sophgo,sg2044-plic
               - thead,th1520-plic
           - const: thead,c900-plic
+      - items:
+          - const: ultrarisc,dp1000-plic
+          - const: ultrarisc,cp100-plic
       - items:
           - const: sifive,plic-1.0.0
           - const: riscv,plic0
--
2.51.0