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[23.128.96.18]) by mx.google.com with ESMTP id f14si35824329ejx.84.2021.07.24.11.22.36; Sat, 24 Jul 2021 11:23:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=ZgQiFzz0; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229667AbhGXRkZ (ORCPT + 99 others); Sat, 24 Jul 2021 13:40:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38174 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229530AbhGXRkY (ORCPT ); Sat, 24 Jul 2021 13:40:24 -0400 Received: from mail-qv1-xf35.google.com (mail-qv1-xf35.google.com [IPv6:2607:f8b0:4864:20::f35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2CC01C061575 for ; Sat, 24 Jul 2021 11:20:56 -0700 (PDT) Received: by mail-qv1-xf35.google.com with SMTP id cv7so2987355qvb.12 for ; Sat, 24 Jul 2021 11:20:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=KeMJR/oOT6vnUfEf1QGuRaqBtn1buVaEAa8SwfA3FM8=; b=ZgQiFzz0yfKej069imP4GcuB6HeHasV7gVLeT/CfcWN/DTJJg/Spjk6rqSuFDFhlT1 oVmOW7zBobMisHPGm2lJ6U2deTrWP2dVpcAnkBwrEckp1xEgEVLqrGzio/uH9L0FtJ5x YwuITmQmANyJv6cVc1xXEw2bnfEQi9ni8vCVJEQierUO67Va65eBkypz5yIlWnx/sRnj Rn1vhvhajRBLIKYV1ZblyUfw7X488U151n4vUehE3r4BY6PlShmmVWoqx8oKVthyfLw6 T5LvrGgwzMWi8l148NpGRoEnKkQskY2AUFedNhoTmCnP1WvfH1mAVmzhtgS6HRfQ60yb t50Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KeMJR/oOT6vnUfEf1QGuRaqBtn1buVaEAa8SwfA3FM8=; b=QItpq/zKriiRu9VaVJT9hrVvuxEjt7RkBn69ZA3aOyGXrBpksTYlCTmPr+sY6efoKs zsazrE85TG5t8mRHmBQMkcopIYoSRFChn2uVzTLg15llBUEGqGAc+pT1CEoN6nSRH+ok BjSyMfonV1MSDK4zRpEbNxEG4Gcwn5+CTNds4qYVLNgmgjjniV0oYNs+kzzVvHrfQNkE l8rylH43hfA8g/eBHKjobI/nSbiO3S2de++K7R/Ig/0Bxd6ao6ISzf0qHL9IhIlr77KE UDUBFqwITFbQz51kd9g21LfXeCsIBo9lWr4xUVO2upIcaQWKKZB8PwScuqAzaZVKKX1U ASWg== X-Gm-Message-State: AOAM530IMz/KRKa7kfaCjzPYBeqcmfVET1eC7JLzqPvaRGj+b56Lq1h4 VsGLhbVS4duiKTbkuCcuwDn29c3MZ3fS9oDxc2M= X-Received: by 2002:a0c:d68f:: with SMTP id k15mr10642939qvi.14.1627150855374; Sat, 24 Jul 2021 11:20:55 -0700 (PDT) MIME-Version: 1.0 References: <1627100621-19225-1-git-send-email-chihhao.chen@mediatek.com> In-Reply-To: From: Geraldo Nascimento Date: Sat, 24 Jul 2021 15:20:47 +0000 Message-ID: Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting To: Takashi Iwai Cc: chihhao.chen@mediatek.com, alsa-devel@alsa-project.org, wsd_upstream@mediatek.com, damien@zamaudio.com, tiwai@suse.com, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Dr. Iwai, perhaps we could restrict the generalized fix for the > Behringer UFX1604 / UFX1204 with some simple logic to devices that > only have *one* clock source. Okay, rereading the original commit log from Cihhao Chen I gather Samsung USBC Headset (AKG) with VID/PID (0x04e8/0xa051) actually has two clock selectors and only one clock source. Correct me if I'm wrong. This is complicated by the fact I haven't been able to find a lsusb -v of Samsung USBC Headset (AKG) with VID/PID (0x04e8/0xa051) Even so, my proposition still stands: devices with only one clock source and only one clock selector should be able to handle us selecting the clock selector to the only clock source.