Unverified Commit 9e320d7c authored by Conor Dooley's avatar Conor Dooley Committed by Palmer Dabbelt
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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: default avatarConor Dooley <conor.dooley@microchip.com>
Reviewed-by: default avatarAndrew Jones <ajones@ventanamicro.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarYangyu Chen <cyy@cyyself.name>
Link: https://lore.kernel.org/r/tencent_3B8290DDC66D3E624132ED39C7465CDC9807@qq.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 255b34d7

Documentation/devicetree/bindings/riscv/cpus.yaml

+1 −1
Original line number Diff line number Diff line
@@ -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])+)*$