linux-kernel - [PATCH 6/9] dt-bindings: riscv: add Zacas ISA extension description

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Message-ID: <20231213113308.133176-7-cleger@rivosinc.com>
Date:   Wed, 13 Dec 2023 12:33:02 +0100
From:   Clément Léger <cleger@...osinc.com>
To:     linux-doc@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Clément Léger <cleger@...osinc.com>,
        Jonathan Corbet <corbet@....net>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Robbin Ehn <rehn@...osinc.com>
Subject: [PATCH 6/9] dt-bindings: riscv: add Zacas ISA extension description

Add description for the Zacas ISA extension which was ratified recently.

Signed-off-by: Clément Léger <cleger@...osinc.com>
---
 Documentation/devicetree/bindings/riscv/extensions.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index 912cc6a42eb4..264114fa943e 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -171,6 +171,12 @@ properties:
             memory types as ratified in the 20191213 version of the privileged
             ISA specification.
 
+        - const: zacas
+          description: |
+            The Zacas extension for Atomic Compare-and-Swap (CAS) instructions
+            is supported as ratified at commit 5059e0ca641c ("update to
+            ratified") of the riscv-zacas.
+
         - const: zam
           description: |
             The standard Zam extension for misaligned atomics is supported as
-- 
2.43.0