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| author | Conor Dooley <conor.dooley@microchip.com> | 2023-05-02 00:17:39 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-06-06 15:19:31 -0700 |
| commit | 9e320d7ca46aecf565c3900452acae579a7d0a9a (patch) | |
| tree | 2a6653c766c068256fac0bd5fb49e0a0b5d3aa17 /Documentation/devicetree/bindings/riscv/cpus.yaml | |
| parent | 255b34d799ddaaef5e8672b96c47a3b94fe85da9 (diff) | |
| download | lwn-9e320d7ca46aecf565c3900452acae579a7d0a9a.tar.gz lwn-9e320d7ca46aecf565c3900452acae579a7d0a9a.zip | |
dt-bindings: riscv: drop invalid comment about riscv,isa lower-case reasoning
"Ease of parsing" may have been the initial argument for keeping this
string in lower-case, but parsers may have been written that expect
lower-case only.
For example, the one in released kernels currently does not behave
correctly for multi-letter extensions that begin with a capital letter.
Allowing upper-case here brings about no benefit but would break
compatibility between new devicetrees and older kernels.
Drop the comment to avoid confusing people.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Link: https://lore.kernel.org/r/tencent_3B8290DDC66D3E624132ED39C7465CDC9807@qq.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'Documentation/devicetree/bindings/riscv/cpus.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/riscv/cpus.yaml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml index 3d2934b15e80..db5253a2a74a 100644 --- a/Documentation/devicetree/bindings/riscv/cpus.yaml +++ b/Documentation/devicetree/bindings/riscv/cpus.yaml @@ -94,7 +94,7 @@ properties: While the isa strings in ISA specification are case insensitive, letters in the riscv,isa string must be all - lowercase to simplify parsing. + lowercase. $ref: "/schemas/types.yaml#/definitions/string" pattern: ^rv(?:64|32)imaf?d?q?c?b?k?j?p?v?h?(?:[hsxz](?:[a-z])+)?(?:_[hsxz](?:[a-z])+)*$ |