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From: Conor Dooley <conor@kernel.org>
To: linux-riscv@lists.infradead.org
Cc: conor@kernel.org, "Conor Dooley" <conor.dooley@microchip.com>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Clément Léger" <cleger@rivosinc.com>,
	"Andy Chiu" <andybnac@gmail.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Krzysztof Kozlowski" <krzysztof.kozlowski@linaro.org>
Subject: [PATCH v2 3/5] dt-bindings: riscv: d requires f
Date: Thu, 24 Oct 2024 13:34:31 +0100	[thread overview]
Message-ID: <20241024-petted-oasis-426993b07f75@spud> (raw)
In-Reply-To: <20241024-fanning-enrage-bcc39f8ed47d@spud>

From: Conor Dooley <conor.dooley@microchip.com>

Per the specifications, the d extension for double-precision floating
point operations depends on the f extension for single-precision floating
point. Add that requirement to the bindings. This differs from the
Linux implementation, where single-precious only is not supported.

Reviewed-by: Clément Léger <cleger@rivosinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.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 2cf2026cff574..c697be64d3bfc 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -571,6 +571,12 @@ properties:
             https://www.andestech.com/wp-content/uploads/AX45MP-1C-Rev.-5.0.0-Datasheet.pdf
 
     allOf:
+      - if:
+          contains:
+            const: d
+        then:
+          contains:
+            const: f
       # Zcb depends on Zca
       - if:
           contains:
-- 
2.45.2


  parent reply	other threads:[~2024-10-24 12:34 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-24 12:34 [PATCH v2 0/5] Add some validation for vector, vector crypto and fp stuff Conor Dooley
2024-10-24 12:34 ` [PATCH v2 1/5] RISC-V: add vector crypto extension validation checks Conor Dooley
2024-10-25  2:08   ` Eric Biggers
2024-10-25 16:52     ` Conor Dooley
2024-10-24 12:34 ` [PATCH v2 2/5] RISC-V: add f & d " Conor Dooley
2024-10-24 12:34 ` Conor Dooley [this message]
2024-10-24 12:34 ` [PATCH v2 4/5] dt-bindings: riscv: add vector sub-extension dependencies Conor Dooley
2024-10-24 12:34 ` [PATCH v2 5/5] dt-bindings: riscv: document vector crypto requirements Conor Dooley
2024-10-25  2:24   ` Eric Biggers
2024-10-25  2:42     ` Eric Biggers
2024-10-25 16:53       ` Conor Dooley
2025-01-18  0:54         ` Charlie Jenkins
2025-01-20 17:17           ` Conor Dooley

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