From nobody Fri Dec 19 04:01:16 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 D98A0C77B61 for ; Mon, 1 May 2023 16:19:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232884AbjEAQTJ (ORCPT ); Mon, 1 May 2023 12:19:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48262 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232688AbjEAQTG (ORCPT ); Mon, 1 May 2023 12:19:06 -0400 Received: from out162-62-57-64.mail.qq.com (out162-62-57-64.mail.qq.com [162.62.57.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13CE8E61 for ; Mon, 1 May 2023 09:19:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1682957939; bh=mXp6SRcjWPRCwi6nlesU+F55lVnmPqOB5ATTOwT5NWM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=DBCIDQTKb1NSQ+gn4QF6NCTPVAMO2feE0q4HALY9pFqRDJIAE7DGGf+Zjo/XpqTbd IvzRmrdP4BLylmwVpUGiDgliJkVPXa3s2a2wZr8EVF8swkSGBgn9xUJ5w5qwEsj3kx SAL1zig+AruKzY8TrdBi8ZpNI8Bn2iFJU3TiDlWo= Received: from cyy-pc.lan ([2001:da8:c800:d084:c65a:644a:13d7:e72c]) by newxmesmtplogicsvrsza10-0.qq.com (NewEsmtp) with SMTP id 4A78EECC; Tue, 02 May 2023 00:18:39 +0800 X-QQ-mid: xmsmtpt1682957927t9od3563r Message-ID: X-QQ-XMAILINFO: MW5hkHoBpWXyzdhmgeaTiGdwAayVVBNizcyU1Jfob9MZjrC9CFbTPRnmCQIVCA baJDKCSZw/z8pNn+tVF9I/qytqEgyqxcUySgaCif5lWD9BXTtrUtbRSkGtzOmer++Av4Oihic5Of Ln0U2ZLwijgWnvk0pheO9ZJ1/doXtLUyYcUg9TQAgxvQEw12tU4caKmi6UADJByOohcBMMjQ55jz Qcw5j2EQH99Y1xlIkZp3fxQyL+qhLjLQDf5bj8S13TZEcYt17D1Pn25cFfRsvZT/DgAhmoaX/Jul 1idHVhKOYEqy/p3f4ZpPqsqHCi7F2F83rzS4ulr4rld8hnFwcHMmYcPD5zlYarAyWlYfBnlOWUNo ycTS2YTFY9mJP6lVvTCkZ8ul7CKqPHVHZ2Z0b6c1FYVOfTU6P694SLz3flyh+iPUmCnAuU4u1UAV elPMahYdm2b/GL+GL/5m1Cw275YpfYlLweieY1EZjo6vwTFSIhXZlBcF5XIZ6S94KqtDEIlnDVBK Lm6kBxK2XDbCiBP8yldxjJ4rs5FF9jPVsWQ1zOdSs6YWKmIw97WWqp4GmWwKol4wLjpmSGgDYIS9 TztSJrrbF4r+Kx4/jVUMSRK7WPMtvQxefMlDjiZYhzh699D7YKIq3sj/iO+oRnu0AYa735/9CJ3v ihuuRzES/+oIf4tzdMHQ3a/LcAyuhopvfd0AwXjvk5O/POfW/qR9xrVh2CdfORNfVTf+pxBIn8UM KNQ+oBQUlES1cVNX0UpzrTwYGZzwiqa3CYMqISzt71kz8SSBfkWYKwgc/JlPBdPdXNTcHUix318k H3pjaXZFwtmRgYT6jC2mlDN9i4srDTNe8ujw2CkuW5KOIGR30O9cGFDK2ijGgQxRBR7YjNlI4svX Os+QEanAavVhcIfd89w10DbFidhCmZvXMRxKAbbUmvMh6RHYL2ca68xdi+yQul0ZMig19Zz7C7Ms qZ+fdzZkuACVCScXunC8ArPOkAFsTGymvdlNi3HN5CqcUyajj/l4WJ6Obj5VGDHPNEIDS7LxA= From: Yangyu Chen To: Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Rob Herring , Krzysztof Kozlowski Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Andrew Jones , Wende Tan , Soha Jin , Hongren Zheng , Conor Dooley , Rob Herring , Yangyu Chen Subject: [PATCH v3 2/2] dt-bindings: riscv: drop invalid comment about riscv,isa lower-case reasoning Date: Tue, 2 May 2023 00:17:39 +0800 X-OQ-MSGID: <20230501161739.152403-2-cyy@cyyself.name> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: 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 "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 Reviewed-by: Andrew Jones Acked-by: Rob Herring Signed-off-by: Yangyu Chen --- 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 25d6e8dbffb8..7dd792e7bb45 100644 --- a/Documentation/devicetree/bindings/riscv/cpus.yaml +++ b/Documentation/devicetree/bindings/riscv/cpus.yaml @@ -88,7 +88,7 @@ properties: =20 While the isa strings in ISA specification are case insensitive, letters in the riscv,isa string must be all - lowercase to simplify parsing. + lowercase. $ref: "/schemas/types.yaml#/definitions/string" pattern: ^rv(?:64|32)imaf?d?q?c?b?k?j?p?v?h?(?:[hsxz](?:[a-z])+)?(?:_[= hsxz](?:[a-z])+)*$ =20 --=20 2.40.1