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 877FCCD4F24 for ; Tue, 12 May 2026 16:57:46 +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-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-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+LcfRJZ+PWR4K5yRUFFHTGn1tJSxnzUHnFYIPeoVmK0=; b=TR0TaX/74Bzuwe7pO34ufZUIv+ rTwmI8mmEp0bif5eSoxPFCC46OBQhr3eg9GWVC/DXD29kf00o8G7Q2tEpoDJIUOgDibSktDyYJjfH wINiK8yi+iLJ9Bcrax5REBZWk/YLL8uCxsOkcS7oQ3c8MZ6JSf/le8ru3fvvLhX4hgTNYjBFXQNV1 aQo3n60sDr/ghS1Q6gqQe8f3ox05dCkU7SVPmjPbD5MKyzgbLsNwSL1TZvO+QXnnBnFp4uidPDdSJ KT++HXjYOU27NLxvquSvAclDuQ0oRJYFzGKRqCQGg+2lMGrsP+xiMg2a8SlNtFrsXzQ0hFjCYkvMB ahHw+pzA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMqQF-0000000HSMr-1U1V; Tue, 12 May 2026 16:57:31 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMqQD-0000000HSLp-3qxq for linux-riscv@lists.infradead.org; Tue, 12 May 2026 16:57:31 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 4FF6C40256; Tue, 12 May 2026 16:57:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C88EC2BCB0; Tue, 12 May 2026 16:57:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778605048; bh=zQgnsAnbOUnV0Z18dbHGn7S65VpWXuaQb4J/vp+qMTE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=nXGjvPJ85nYR64f3RYSlct3Z8PEyqwIBsLDolAjbgYm77ty69cYgpnKjOnSYHTXuB u72AlRHulJ+XFi5QR5ya/znUH8NHqzFDZ739DT2Vs6rZCCPpUP6HGDti0XmScQmvkr 0z74l3rNyk5lroHdIPldtLHqoNILGk1n3tHt+wV09IvkeJrPU2DVFcSuQi8CGMbcJL 79Q/0DXTclNL/sBBNkiIdM4/QDSHbsh/0v5lbYfu3FT+pT0PZg+WyZQoo/5k1i1mO8 h0TjVAhbuNihHqdisYm9cGRIZUzUMAKcvKvXFqc9Hugeqx2KWAaVY6HhOxVft5cbDH rCJgsHwUD+y9g== Date: Tue, 12 May 2026 17:57:22 +0100 From: Conor Dooley To: 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: <20260512-shudder-repressed-204473e32978@spud> References: <20260511063818.463877-1-inochiama@gmail.com> <20260511063818.463877-2-inochiama@gmail.com> <20260511-crave-sworn-3b43371ce11a@spud> MIME-Version: 1.0 In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260512_095729_980512_E5DD641C X-CRM114-Status: GOOD ( 16.13 ) 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: multipart/mixed; boundary="===============2824657786136744664==" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org --===============2824657786136744664== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="TsyhsMpKyZFWvNGP" Content-Disposition: inline --TsyhsMpKyZFWvNGP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, May 12, 2026 at 06:04:36AM +0800, Inochi Amaoto wrote: > 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. > >=20 > > 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? > >=20 >=20 > Yes, the device is already in DTS, and since I find an quirk for > it. A new compatible with fallback is necessary. Acked-by: Conor Dooley pw-bot: not-applicable --TsyhsMpKyZFWvNGP Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCagNb8QAKCRB4tDGHoIJi 0m2jAQCCqdHTz8+DIxjGnMEK5qAR/BRwBOVIK/8wBLWhokLAUQD/YpQVzxp7MkA/ PQAEfkisMNOAv29mXwapa7xQ+VTiUQw= =LsvR -----END PGP SIGNATURE----- --TsyhsMpKyZFWvNGP-- --===============2824657786136744664== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv --===============2824657786136744664==--