linux-kernel - [PATCH v2 10/19] dt-bindings: riscv: add Zfh[min] ISA extensions description

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Message-ID: <20231017131456.2053396-11-cleger@rivosinc.com>
Date:   Tue, 17 Oct 2023 15:14:47 +0200
From:   Clément Léger <cleger@...osinc.com>
To:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org
Cc:     Clément Léger <cleger@...osinc.com>,
        Palmer Dabbelt <palmer@...osinc.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Albert Ou <aou@...s.berkeley.edu>,
        Jonathan Corbet <corbet@....net>,
        Andrew Jones <ajones@...tanamicro.com>,
        Evan Green <evan@...osinc.com>,
        Conor Dooley <conor@...nel.org>,
        Samuel Ortiz <sameo@...osinc.com>,
        Conor Dooley <conor.dooley@...rochip.com>
Subject: [PATCH v2 10/19] dt-bindings: riscv: add Zfh[min] ISA extensions description

Add description of Zfh[min] ISA extensions[1] which can now be reported
through hwprobe for userspace usage.

Link: https://drive.google.com/file/d/1z3tQQLm5ALsAD77PM0l0CHnapxWCeVzP/view [1]
Signed-off-by: Clément Léger <cleger@...osinc.com>
Acked-by: Conor Dooley <conor.dooley@...rochip.com>
---
 .../devicetree/bindings/riscv/extensions.yaml       | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index 93beb9872900..b0a0d1bdf369 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -208,6 +208,19 @@ properties:
             instructions as ratified at commit 6d33919 ("Merge pull request #158
             from hirooih/clmul-fix-loop-end-condition") of riscv-bitmanip.
 
+        - const: zfh
+          description:
+            The standard Zfh extension for 16-bit half-precision binary
+            floating-point instructions, as ratified in commit 64074bc ("Update
+            version numbers for Zfh/Zfinx") of riscv-isa-manual.
+
+        - const: zfhmin
+          description:
+            The standard Zfhmin extension which provides minimal support for
+            16-bit half-precision binary floating-point instructions, as ratified
+            in commit 64074bc ("Update version numbers for Zfh/Zfinx") of
+            riscv-isa-manual.
+
         - const: zk
           description:
             The standard Zk Standard Scalar cryptography extension as ratified
-- 
2.42.0