(subset) [PATCH v2 0/4] riscv: dts: Add "b" ISA extension to existing devicetrees

Inochi Amaoto inochiama at gmail.com
Mon Jan 19 18:48:55 PST 2026


On Thu, 15 Jan 2026 07:18:56 +0800, Guodong Xu wrote:
> The RISC-V "b" (Bit-manipulation) extension was ratified in April 2024,
> much later than its component extensions zba/zbb/zbs (June 2021). Recent
> updates to the device tree bindings [2] enforce that when all three
> component extensions are present, "b" must also be specified. Related
> discussion can also be found in [1].
> 
> Patch 1 clarifies the ISA spec version for canonical ordering in uabi.rst.
> It is a trivial update, but can help readers reference the correct
> document version. Acked-by Paul Walmsley in v1.
> 
> [...]

Applied to dt/riscv, thanks!

[3/4] riscv: dts: sophgo: sg2044: Add "b" ISA extension
      https://github.com/sophgo/linux/commit/f16ae81b80ca4e721f4c4ed1f28390115f7721eb

Thanks,
Inochi




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