[PATCH v1 2/2] dt-bindings: riscv: drop invalid comment about riscv,isa lower-case reasoning

[Conor Dooley]

"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 at microchip.com>
---
 Documentation/devicetree/bindings/riscv/cpus.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
index f24cf9601c6e..9e273a3264e3 100644
--- a/Documentation/devicetree/bindings/riscv/cpus.yaml
+++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -86,7 +86,7 @@ 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.
     $ref: "/schemas/types.yaml#/definitions/string"
     pattern: ^rv(?:64|32)imaf?d?q?c?b?k?j?p?v?h?(?:[hsxz](?:[a-z])+)?(?:_[hsxz](?:[a-z])+)*$
 
-- 
2.39.2