linux-kernel - [PATCH 2/2] docs: dt: allow case-insensitive RISC-V ISA string

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Message-ID: <tencent_221A82C2DAF38E66B85B313221958DDD7C08@qq.com>
Date:   Tue, 25 Apr 2023 20:00:16 +0800
From:   Yangyu Chen <cyy@...self.name>
To:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>
Cc:     linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Wende Tan <twd2.me@...il.com>, Soha Jin <soha@...u.info>,
        Hongren Zheng <i@...ithal.me>, Yangyu Chen <cyy@...self.name>
Subject: [PATCH 2/2] docs: dt: allow case-insensitive RISC-V ISA string

After allowing case-insensitive ISA string parsing in the kernel code,
the docs should be updated.

Signed-off-by: Yangyu Chen <cyy@...self.name>
---
 Documentation/devicetree/bindings/riscv/cpus.yaml | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
index 001931d526ec..70afd1e8638b 100644
--- a/Documentation/devicetree/bindings/riscv/cpus.yaml
+++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -79,11 +79,10 @@ properties:
       User-Level ISA document, available from
       https://riscv.org/specifications/
 
-      While the isa strings in ISA specification are case
-      insensitive, letters in the riscv,isa string must be all
-      lowercase to simplify parsing.
+      According to RISC-V ISA specification, the isa strings are
+      case insensitive.
     $ref: "/schemas/types.yaml#/definitions/string"
-    pattern: ^rv(?:64|32)imaf?d?q?c?b?k?j?p?v?h?(?:[hsxz](?:[a-z])+)?(?:_[hsxz](?:[a-z])+)*$
+    pattern: (?i)^rv(?:64|32)imaf?d?q?c?b?k?j?p?v?h?(?:[hsxz](?:[a-z])+)?(?:_[hsxz](?:[a-z])+)*$
 
   # RISC-V requires 'timebase-frequency' in /cpus, so disallow it here
   timebase-frequency: false
-- 
2.40.0