From nobody Thu Sep 18 15:58:43 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A401C4332F for ; Mon, 5 Dec 2022 17:47:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232631AbiLERro (ORCPT ); Mon, 5 Dec 2022 12:47:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232587AbiLERrJ (ORCPT ); Mon, 5 Dec 2022 12:47:09 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2841023BCD; Mon, 5 Dec 2022 09:45:47 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 7ACAEB811BE; Mon, 5 Dec 2022 17:45:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D5B7C433D6; Mon, 5 Dec 2022 17:45:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670262344; bh=FJ2eLc+/uvQtLvi0RqLWMq8XBxp4zHfWRfsPOxpEs+c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dytuqIlUealQUxdTAhY+8ZYE3V8rGSp7iu1KElSnR/Y24IhoesCGKp/+Rt3hrFTBn 7fYb4N87KzfwacJim7ecefII2dS9AMKznszp+2sSVfarUSjESNVzoOP+Y4aWqiCOHh ak8NCsL1daSs+lQvLQssAlTpe7cOb6y94b3nFozwvdXS/VKPJxkIltqyne+/KQKmju TMiLeDxbWtidxR7d08bziajaZq+BxfhXkxYrUcKkviuBrleUngoHGy6ThieD3vx8c1 ZxVYpnnoucHPxS0Vd+hnJBc7tXxOepQYLfmhMl2cRIBahpcpCHA8ULXIZM7uLzVrd/ 3gHBTekRuCkog== From: Conor Dooley To: Palmer Dabbelt , linux-riscv@lists.infradead.org Cc: Conor Dooley , Jessica Clarke , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Paul Walmsley , Albert Ou , Heiko Stuebner , Andrew Jones , Guo Ren , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] dt-bindings: riscv: fix underscore requirement for multi-letter extensions Date: Mon, 5 Dec 2022 17:44:59 +0000 Message-Id: <20221205174459.60195-2-conor@kernel.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221205174459.60195-1-conor@kernel.org> References: <20221205174459.60195-1-conor@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Conor Dooley The RISC-V ISA Manual allows the first multi-letter extension to avoid a leading underscore. Underscores are only required between multi-letter extensions. The dt-binding does not validate that a multi-letter extension is canonically ordered, as that'd need an even worse regex than is here, but it should not fail validation for valid ISA strings. Allow the first multi-letter extension to appear immediately after the single-letter extensions. Link: https://github.com/riscv/riscv-isa-manual/releases/tag/riscv-unpriv-p= df-from-asciidoc-15112022 # Chapter 29.5 Fixes: 299824e68bd0 ("dt-bindings: riscv: add new riscv,isa strings for emu= lators") Acked-by: Guo Ren Signed-off-by: Conor Dooley Acked-by: Rob Herring --- Documentation/devicetree/bindings/riscv/cpus.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentat= ion/devicetree/bindings/riscv/cpus.yaml index 90a7cabf58fe..97659bb71811 100644 --- a/Documentation/devicetree/bindings/riscv/cpus.yaml +++ b/Documentation/devicetree/bindings/riscv/cpus.yaml @@ -80,7 +80,7 @@ properties: insensitive, letters in the riscv,isa string must be all lowercase to simplify parsing. $ref: "/schemas/types.yaml#/definitions/string" - pattern: ^rv(?:64|32)imaf?d?q?c?b?v?k?h?(?:_[hsxz](?:[a-z])+)*$ + pattern: ^rv(?:64|32)imaf?d?q?c?b?v?k?h?(?:[hsxz](?:[a-z])+)?(?:_[hsxz= ](?:[a-z])+)*$ =20 # RISC-V requires 'timebase-frequency' in /cpus, so disallow it here timebase-frequency: false --=20 2.38.1