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 1448DF43853 for ; Wed, 15 Apr 2026 15:54:00 +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:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=18XEqRswR1f1Td9BnJpneiYHsxSQQp3XNQsO+J6dO/c=; b=QtdH6g7OVUYVzohkCpF2KH200v K0s+5hI90kfglTTj9pNMMBKeQv9RmTQAw4lBei4q/evayKzPzGG6X2PuCurxpmGOJn5dhIdysZExv f8i/A0ibvpiPP78GV+XVIYB8LtyCueCgvHyt6OnvzxoBqJBfhOiG+1wdHA6Yo8GfH8QjKN1NgZEGw uPef4ejeR36nhSFZQdaB3J9x7wX1nPMMLon+V4E6Ko4hCyTPFrr0OJsIofNdsJKshDSXIeAZ8Ord2 bf0Vr8b9Kl2wZsmQxnr6cbXcCyAuJigr/u2WEf4FbmNuRHN0alWEjax1uyTf7J1lN8TrQMPxnKw8b MsdMN9tQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wD2Yt-00000001Ld3-2VCV; Wed, 15 Apr 2026 15:53:55 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wD2Ys-00000001Lcp-0EDG; Wed, 15 Apr 2026 15:53:54 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 2BEF5600AE; Wed, 15 Apr 2026 15:53:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2C8E2C19424; Wed, 15 Apr 2026 15:53:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776268432; bh=Us7yUv36VR/pQ2jT+9Hva+0cXXCK2Pqu3CcrJ7SAPWg=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=DjIbpc+tT05ZnG96Uo1tahGpZmjWGE7DLk7/a5R1L8t3v7L3KqoiPNxQbrTzSaCaw +Re1HIH2Qfrf5UBHmdjAU1mLML0jBk1wkXG3hfTFTFfdDOk5/BMNOTxKZd+/oyX1t2 VOeNhfWtSRO7NkPCesaWVvvzpMJiPW3Gvt0LAItU1sHufnLVsTXxgD4Pgzti6syvQb BM+EpmgUnCgmWTIwgYuDCsGqDadn10dYeJLkglEpErZ2V6BJszkcSHm3uncIi/kSbk bINYh5yegwd2Z6VtM0cksuVApTB7ascyWp0CvIsXaqBmzzYse43zE93a8ah/rP4VLr PSPxGkI8/gZbg== Message-ID: Date: Wed, 15 Apr 2026 17:53:47 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC v2 00/11] Add support for AUDIN driver in Amlogic GXBB To: Jerome Brunet , Valerio Setti Cc: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Neil Armstrong , Kevin Hilman , Martin Blumenstingl , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org References: <20260411-audin-rfc-v2-0-4c8a6ec5fcab@baylibre.com> <1jh5pcs2gw.fsf@starbuckisacylon.baylibre.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit 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 15/04/2026 16:49, Jerome Brunet wrote: > On sam. 11 avril 2026 at 16:57, Valerio Setti wrote: > >> This series adds support for I2S audio input (AUDIN) on the Amlogic GXBB >> platform. >> >> It has been largely reshaped compared to what proposed in v1. Instead of >> adding an HACK commit to allow AIU to export its clock so that also >> AUDIN can control it, now the design closely follows what was implemented >> in the Meson AXG platform. "aiu-encoder-i2s" becomes the shared interface >> for playback/capture and it controls pins and clocks; data formatting >> is implemented in formatters which are named "aiu-formatter-i2s" and >> "audin-decoder-i2s" [1]. >> Formatters are DAPM widgets which are dynamically attached/detached to >> the streams when the latters starts/stop, respectively. >> >> As of now only I2S input is supported, because it's the only one >> I could physically test in my setup, but other input sources (ex: SPDIF) >> are also allowed according to the SOC's manual and can be added in the >> future. >> This series was tested on an OdroidC2 board (Amlogic S905 SOC) with an >> NXP SGTL5000 codec connected to its I2S input port. >> >> Since this work brings GX platform very close to the AXG one, once this >> series is accepted, follow up work will be done in order to unify >> GX and AXG formatters so as to minimize the number of implementations. >> >> The series a bit long and it includes changes to drivers, dt-bindings and >> device-tree. Of course this only happens because this is an RFC and I >> wanted to give a full overview of what will be the final design. If no >> objection is raised, this patch series will be split into 3: one for >> reshaping AIU and introducing formatters, one to add AUDIN driver and its >> dt-bindings, one for the device-tree changes. >> >> [1]: Different naming for the aiu part is related to the fact that >> "aiu-encoder-i2s" is already used for the interface and the goal >> of this series was to introduce the minimum amount of changes that allow >> I2S capture to work. Renaming can be implemented in the future as follow up >> activity. > > Thanks a lot for this awesome work Valerio. I know this was a lot of > effort. With Mark and Krzysztof comments addressed > My comments are still unanswered. One of the devices looks like artificially split from some other, because one word register is not a device. Best regards, Krzysztof