linux-kernel - [PATCH v3 1/2] dt-bindings: sifive: add cache-set value of 2048

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Message-Id: <20220726170725.3245278-2-mail@conchuod.ie>
Date:   Tue, 26 Jul 2022 18:07:25 +0100
From:   Conor Dooley <mail@...chuod.ie>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Atul Khare <atulkhare@...osinc.com>,
        Sagar Kadam <sagar.kadam@...ive.com>
Cc:     linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/2] dt-bindings: sifive: add cache-set value of 2048

From: Atul Khare <atulkhare@...osinc.com>

Fixes Running device tree schema validation error messages like
'... cache-sets:0:0: 1024 was expected'.

The existing bindings had a single enumerated value of 1024, which
trips up the dt-schema checks. The ISA permits any arbitrary power
of two for the cache-sets value, but we decided to add the single
additional value of 2048 because we couldn't spot an obvious way
to express the constraint in the schema.

Signed-off-by: Atul Khare <atulkhare@...osinc.com>
Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
index e2d330bd4608..ab6043d9cdbe 100644
--- a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
+++ b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
@@ -46,7 +46,7 @@ properties:
     const: 2
 
   cache-sets:
-    const: 1024
+    enum: [1024, 2048]
 
   cache-size:
     const: 2097152
-- 
2.37.1