From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B4C8C16C861; Fri, 9 Aug 2024 09:10:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723194652; cv=none; b=r4Ud05Uo8F/KBuRdMPEwkFjof9DKAljwQXeDFfUfab+5dKxC6L0zM5pdwkhRQJXTWPrMpncLfKBp9kKuxmvEAJILgq4fOGLkXiSuyeIxsnMJe8SkRqHw0TAoCy7qCYJTgfo5hsL1PmhtAEjg5OqeaUThBgtWKcRO37VGT4WbnL0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723194652; c=relaxed/simple; bh=MF6DnJf7RlkwgK2dPBAlcsElsLGqpbCbwaFGF0OXEAc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=NppCeoSTXto/T9x73zndMScZyukNq2t6cmaG/LyD+7j1a1Gsb8TUEW6rYysMAHxTV++QuE9f7MXdWtRXrIIeDnjF8cordCaPSlIEKf4TG4PkQlyR1gdIFNeh9W/v18CVhDPDDnxiP4dDBoNaqnBvo1PM27QoDX7jDRioaX/QEow= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tgpT3YlM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tgpT3YlM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 584BBC32782; Fri, 9 Aug 2024 09:10:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723194652; bh=MF6DnJf7RlkwgK2dPBAlcsElsLGqpbCbwaFGF0OXEAc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=tgpT3YlMGB0SaeUS9uq+8H4964Gt26uIgwAs7fRfW0LMOaYVzBuJ/XGF0RGOv+dZh uBdf7GfXc1CBLHgwI6quIcuGLc5Sj03jMy4IW49dAHlP5ryWOR9r/hxDuAC5eHIXXH LMjwsE7mB3CGyWp1GvyTF/vxoo/TGsiM4Dx2OKx8R6Lf79avLSBFzIMx8WN3zkTft5 v2ezrcOMT6A54oL7Vxqa9eWLUDTPf/5e+wnS3+1AqYHl/QNOA/icTIvr5KVeuVf/Wd pXZZYkcoZFS/Zb/mH/yE30JGObbO75ea8yKeHOtz3QrOTyInrVT9GY+tAQpR9FJBkT cnyu8elBk7oYg== Message-ID: <36b7bbb9-7eea-4db2-86a6-80af206c29ad@kernel.org> Date: Fri, 9 Aug 2024 11:10:44 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/3] Add DisplayPort sound support for Fairphone 5 smartphone To: Luca Weiss , Srinivas Kandagatla , Banajit Goswami , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jaroslav Kysela , Takashi Iwai , Bjorn Andersson , Konrad Dybcio Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, alsa-devel@alsa-project.org, linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20240809-fp5-dp-sound-v1-0-d7ba2c24f6b9@fairphone.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 09/08/2024 10:33, Luca Weiss wrote: > Add the necessary sound card bits and some dts additions to enable sound > over DisplayPort-over-USB-C, e.g. to a connected TV or monitor. > > The UCM files can be found here: > https://gitlab.com/postmarketOS/pmaports/-/tree/master/device/testing/device-fairphone-fp5/ucm > > Two extra notes: > > 1. I don't quite understand whether the sound driver should have > SoC-specific compatible or device-specific compatible. Some earlier > patches by another author for a QCM6490 board and a QCS6490 board use > device-specific compatible - but from what I can tell this is not how > it's generally done for other sound drivers? We (including me) were/are a bit inconsistent here, but last statement was that these should be board-specific compatibles. Last discussion I recall: https://lore.kernel.org/all/baa6543c-5e2e-4f28-a95b-a086b32d1f2d@linaro.org/ Best regards, Krzysztof