From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 133DECD484E for ; Mon, 11 May 2026 22:05:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=jrwG8KFq2Lu1TlfPOySpwrEdCg/IxJQWLKMG1tZOrcs=; b=gkdFjLNYcHneu1 rNOf/uXqB9zOeGlLH5i6MyevQzCwIi77nMaL0RolCnHfub9haH2U2T2jmjCY3UNvo1A2XKnX1xnQZ zRTXc39ur6NIr+ajw7l8TB61vWeTvVOm0yrH9wyeLtLUiCBtu5xtWfWWIbHX9MsiW+yxm5HiLHbiF lMLodEGmBboYGLgXFfNHAbtwYSbANid3j9xZ4JiVRDAkdP9ckrRVy6lwdkPehPfNTp4bQdmaPG290 7e5n9YdbO1WU8UvtpLERBDFbAcSsyNu0wflXnguitGobZGebXUyTwxDxo0baUTZfAkCEj+YsFO9b+ LRN2c3ynXoNogle1WRXg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMYkL-0000000ErvF-2jj7; Mon, 11 May 2026 22:05:05 +0000 Received: from mail-pj1-x102b.google.com ([2607:f8b0:4864:20::102b]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMYkI-0000000Erum-3D5J for linux-riscv@lists.infradead.org; Mon, 11 May 2026 22:05:03 +0000 Received: by mail-pj1-x102b.google.com with SMTP id 98e67ed59e1d1-36523acb0c1so3379347a91.0 for ; Mon, 11 May 2026 15:05:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778537102; x=1779141902; darn=lists.infradead.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=TwJIirVuKqVtnnrvOqanwGLH5bXkSp5/1F2o6q3Zsnw=; b=ZliJX/UEs/IjdoHGbqm2V00lluvj9kLT4b4KPKClRYJ+eqMuwT0yPUbyNbt68FGP6w oGftLPqTenDCP1KwHAiLrpPcfw3wMwxjIIy1iOQ3A+pKbOlRNYNXYpxWJgM4HXoelnh7 7tR7yGG/Cbvt8fMjyO2A0dWSthTkOSTUz0CVbjsBuLsZFxUiTUowmNEfu4zuPh1OuCiu UQ2szsvm9bkJppCvZ7GXGhfmhJIYt/xtgX/1b1yK71EvfPniRIIFzwsTP4Dv5H0a8HEm WJhFSuwcMdi8odslmUCbV5X1KslpsCcRltpmQcxuvr/GM4+jStI+6iE775MDItqXMpXl CCYg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778537102; x=1779141902; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TwJIirVuKqVtnnrvOqanwGLH5bXkSp5/1F2o6q3Zsnw=; b=czpsvwVdQMzytm3UhES8lAHdN2xpcE7LlDIxV/KaaWvtRlCL8nOAY3GhK5JtBhmLTO Sbjj6CRXmX1YxXshl1sMjYq8PRh3cAD5ZJLpB/BARsN1SeFT70m7v+solJtSp/k44lae dU32EKVtqcmw175pn3yplAaq8qbPY2QNYqG9DjNA03xXYvMTUKY0RVG4QnBVkfjoUEK0 5UY0K0prbvM3dPVv3Crv0jRAVJvt9Bb1EOxW0zO/EDSVLYO6wrMEI1QYJodxU7i7c1jI AkQXcSP4hZ+ELQehrTvJrwRu5bOcDCV6koC0wmkKZ2Svec6tNNRc0/j+ITcBjwtwVOCf OBQA== X-Forwarded-Encrypted: i=1; AFNElJ9MfwndHKauJofWJYr3Doan/cRspDTK28GOKw2j+H177orvLMyelwT2GT0T64JC0/xQSCegT+xtyGjmtQ==@lists.infradead.org X-Gm-Message-State: AOJu0Yw+L3vL2LUtd35DMO9K0WOBp3w9KPwLX+SP6/mY51LXWoUs36lu Zy6394V7nWA9JC9EAt5AIYkBK8tWfButnP3Radk1VUAFrZrO1qbOmjCr X-Gm-Gg: Acq92OGsIDUDABMFN892l7LOM/pWlSIgNaweUuW7sjY2nQzSBzYWEYOJnY8FfXJO1eF dvOg49Cw19tMs6RJQW3PJYud0albjAVFszDBkyv4KBRGA27VcrrSryqyLRNRZjGGQs91Q80N2Fc D76EtRfCf5a83t1IOlHa690KlHQs5TtWcfHmDD2hz/SYa2Z7gCn9foli1AIM9UzrhrSwmQ7Regg Me5EepgBsgcJlRLp5WkLYpcoZOA2DO3Q11W5wnPaLOYVgekUfeszb2zJ0ZuJCV0wEOGTHP3+Lee fuq1TVspHxuGu/KIB0qYv5SjF6I48wPqH5LrHnvFJVycVaUNlVvDqQwdC0ZZQOgIFcGoMDzYZpX Mi3rB17MzbXotQTlLMTiK+D5SlLlZGbeB+PCb2g8j4bicTdT7T3DFvvWhEm7YN4PQLvGtp1OE35 XZ5wplK/GLf4oAru6d+PtnhZ4= X-Received: by 2002:a17:90b:3d8a:b0:364:a173:2d61 with SMTP id 98e67ed59e1d1-368b2511be6mr449645a91.11.1778537101695; Mon, 11 May 2026 15:05:01 -0700 (PDT) Received: from localhost ([2001:19f0:8001:1b2d:5400:5ff:fefa:a95d]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c826771c6ddsm9907259a12.23.2026.05.11.15.05.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 May 2026 15:05:01 -0700 (PDT) Date: Tue, 12 May 2026 06:04:36 +0800 From: Inochi Amaoto To: Conor Dooley , Inochi Amaoto Cc: Eugeniy Paltsev , Vinod Koul , Frank Li , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Alexander Sverdlin , Longbin Li , Yixun Lan , "Anton D. Stavinskii" , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, Yixun Lan Subject: Re: [PATCH v6 1/2] dt-bindings: dma: snps,dw-axi-dmac: Add fallback compatible for CV1800B Message-ID: References: <20260511063818.463877-1-inochiama@gmail.com> <20260511063818.463877-2-inochiama@gmail.com> <20260511-crave-sworn-3b43371ce11a@spud> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260511-crave-sworn-3b43371ce11a@spud> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260511_150502_842833_A599DB40 X-CRM114-Status: GOOD ( 20.23 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Mon, May 11, 2026 at 05:01:01PM +0100, Conor Dooley wrote: > On Mon, May 11, 2026 at 02:38:16PM +0800, Inochi Amaoto wrote: > > The previous version of the binding change only add compatible > > string without adding the fallback compatible, this breaks > > backward compatibility. Add the needed fallback compatible to > > fix this. > > I don't understand how adding a specific comaptible affected backwards > compatibility. Did the dts originally use the snps compatible before the > device specific one was added? > Yes, the device is already in DTS, and since I find an quirk for it. A new compatible with fallback is necessary. Regards, Inochi > > > > Fixes: be3e2a0419c6 ("dt-bindings: dma: snps,dw-axi-dmac: Add CV1800B compatible") > > Signed-off-by: Inochi Amaoto > > --- > > Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml | 5 +++-- > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml > > index 804514732dbe..0a30a455b0ee 100644 > > --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml > > +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml > > @@ -21,11 +21,12 @@ properties: > > - enum: > > - snps,axi-dma-1.01a > > - intel,kmb-axi-dma > > - - sophgo,cv1800b-axi-dma > > - starfive,jh7110-axi-dma > > - starfive,jh8100-axi-dma > > - items: > > - - const: altr,agilex5-axi-dma > > + - enum: > > + - altr,agilex5-axi-dma > > + - sophgo,cv1800b-axi-dma > > - const: snps,axi-dma-1.01a > > > > reg: > > -- > > 2.54.0 > > _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv