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 C46C5C5AD4E for ; Mon, 10 Aug 2026 07:14:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: 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=3tNAkI5vPOVX8HetVxMd0XhWn0MZflkc+mnZkRCDPdI=; b=oV4PEShASsnMqLMzHCmJW8+dU3 iMs+nQFwbRSsStRn9TWRYCA0NZ0Tm+Bzjp6rJAucmYb51kl+C6lRKFQi24w5bIhsBoxOUknU1a0aq AuDXc7xL3iIQzMr+8M663tpSpKk2kb0qI6LZjxeZlMNekb3b3WdNRkXRNSN3SUVX+l0HW1+0R4IhE bmCGw3Ej1ZT6/p7H3X+qyK8RyoGZ1s0X8Q9LduWgLAoVFIP+TIpk/yRUpiEBsAGyoeKgcQDguPpw2 i1Ts1SQFW+rUDBfhU1DKYFs5wxM5KQuff2LJaq+A2NuDg/0U519yzxwAZMzh/3DvRFRrsafgJUWf6 c9YOOILg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wtKDR-0000000BBJz-2orM; Mon, 10 Aug 2026 07:14:33 +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 1wtKDQ-0000000BBJt-3zfb for linux-arm-kernel@lists.infradead.org; Mon, 10 Aug 2026 07:14:32 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id B2AE640224; Mon, 10 Aug 2026 07:14:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E1DD1F000E9; Mon, 10 Aug 2026 07:14:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786346072; bh=3tNAkI5vPOVX8HetVxMd0XhWn0MZflkc+mnZkRCDPdI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=X7ronXcdvcEuXosufT2+KbF+82VRzRQueYNYrv0YC5Isef6VGJZAU5v3WP6mwLZcq 5GQAxziFxT6+xFMhaN4tm8zVRzhlzet+1skX2m34LVhRnoewm+q3XqAK8hz1sMPq86 aE+SAHptjsCt5rJraZByYq5DR5iv+B1azs+6wbgX+BXdY+TU+DayG1YwlPTaX0n+vG 4uy8yPi2Gtrotr/TgpmFSXtNyc64OFkG3BA0jV7aZp1nZcJJ/raqSuvQWiPcU3VBss aAORSjvJcAjsjvkq9T6s4sLCOIseteyYPwrhlB4fCfFnA5FfFPlTXp152Bv7UixqiD 7AUL3GPkpqpUw== Date: Mon, 10 Aug 2026 09:14:28 +0200 From: Krzysztof Kozlowski To: shengjiu.wang@oss.nxp.com Cc: lgirdwood@gmail.com, broonie@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, Frank.Li@nxp.com, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, shawnguo@kernel.org, linux-sound@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, nicoleotsuka@gmail.com, perex@perex.cz, tiwai@suse.com, linuxppc-dev@lists.ozlabs.org, Shengjiu Wang Subject: Re: [PATCH v3 1/5] ASoC: dt-bindings: fsl,imx-asrc: update port binding to support multiple paths Message-ID: <20260810-normal-cuscus-of-argument-4b230b@quoll> References: <20260804100218.49587-1-shengjiu.wang@oss.nxp.com> <20260804100218.49587-2-shengjiu.wang@oss.nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260804100218.49587-2-shengjiu.wang@oss.nxp.com> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Aug 04, 2026 at 06:02:14PM +0800, shengjiu.wang@oss.nxp.com wrote: > From: Shengjiu Wang > > The i.MX ASRC hardware supports up to three conversion pairs (A, B, C). Which SoC? Did you read this binding you are changing? > The existing binding exposed only a single generic audio-graph port, > which cannot represent independent conversion paths when multiple pairs > are in use simultaneously. > > Add a ports container that enumerates up to three sub-ports, each > representing an independent conversion path: > port@0 -- conversion path 0 > port@1 -- conversion path 1 > port@2 -- conversion path 2 > > Each sub-port references audio-graph-port.yaml as before. Hardware pairs > are allocated dynamically at stream open time; each active stream > direction (playback or capture) on a port consumes one hardware pair. > > For backwards compatibility, keep the old single port property but mark Why? Did the old hardware change that it has more ports/paths? > it deprecated. A schema constraint (not: required: [port, ports]) ensures > that both forms cannot be used at the same time. The binding example is > updated to show the preferred ports form. > > No existing upstream DTS file for fsl,imx-asrc uses the previously > documented single 'port' node, so this change does not break any > in-tree device tree. Does it break other users of this binding? Why mentioning upstream in the first place? Either this change breaks ABI or not, explain that. Best regards, Krzysztof