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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EE89C4338F for ; Thu, 5 Aug 2021 07:54:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 143C061040 for ; Thu, 5 Aug 2021 07:54:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237832AbhHEHyY (ORCPT ); Thu, 5 Aug 2021 03:54:24 -0400 Received: from mailgw01.mediatek.com ([60.244.123.138]:59716 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S231173AbhHEHyX (ORCPT ); Thu, 5 Aug 2021 03:54:23 -0400 X-UUID: 831aadfcca6448ed92316f625e869ed5-20210805 X-UUID: 831aadfcca6448ed92316f625e869ed5-20210805 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 917629391; Thu, 05 Aug 2021 15:54:07 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 5 Aug 2021 15:54:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 5 Aug 2021 15:54:05 +0800 From: To: CC: , , , , , , , , , Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting Date: Thu, 5 Aug 2021 15:54:01 +0800 Message-ID: <20210805075401.21170-1-chihhao.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: chihhao chen Hi Geraldo Nascimento, For echo test, it means we use this earphone to receive and play sounds at the same time. We found in this case serious noise problem happens. Log as follows with your patch <6>[ 175.960387][T401365] __uac_clock_find_source: Clock Selector 0xc has pin 2 selected <6>[ 175.966980][T401365] __uac_clock_find_source: Clock Selector 0xb has pin 2 selected <6>[ 176.026251][T400354] __uac_clock_find_source: Clock Selector 0xc has pin 1 selected <6>[ 176.032406][T400354] __uac_clock_find_source: Clock Selector 0xb has pin 1 selected There is no noise and I think this should be a firmware bug. Thanks Chihhao 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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62171C432BE for ; Thu, 5 Aug 2021 07:55:17 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C2BB861040 for ; Thu, 5 Aug 2021 07:55:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C2BB861040 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 4EF4A1683; Thu, 5 Aug 2021 09:54:23 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 4EF4A1683 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1628150113; bh=miCaEGB806tdWPou9taWaDlX0V/cV3pSjkPZ8rZdBNM=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=SRpJVQaOSWwYhM3FLWfPENcieKwQMM0JtTKujRiz9qpeuxxjzl8v8q58k/rEDYH+6 EOSa3It7k0M0NwUep1ECwFM9x1SYgvSHb9EdTKKliJSTp2unmrHkpWeT/+nYTr6Rnh CoBWsUsmtyu4eZLUQWxmkwAz5YPBCrKLpY5NQryU= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id CA1F6F8010A; Thu, 5 Aug 2021 09:54:22 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 1BC53F802E8; Thu, 5 Aug 2021 09:54:22 +0200 (CEST) Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 2CB6EF8010A for ; Thu, 5 Aug 2021 09:54:14 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 2CB6EF8010A X-UUID: 831aadfcca6448ed92316f625e869ed5-20210805 X-UUID: 831aadfcca6448ed92316f625e869ed5-20210805 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 917629391; Thu, 05 Aug 2021 15:54:07 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 5 Aug 2021 15:54:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 5 Aug 2021 15:54:05 +0800 From: To: Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting Date: Thu, 5 Aug 2021 15:54:01 +0800 Message-ID: <20210805075401.21170-1-chihhao.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Cc: alsa-devel@alsa-project.org, wsd_upstream@mediatek.com, tiwai@suse.de, damien@zamaudio.com, linux-kernel@vger.kernel.org, tiwai@suse.com, chihhao.chen@mediatek.com, linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: chihhao chen Hi Geraldo Nascimento, For echo test, it means we use this earphone to receive and play sounds at the same time. We found in this case serious noise problem happens. Log as follows with your patch <6>[ 175.960387][T401365] __uac_clock_find_source: Clock Selector 0xc has pin 2 selected <6>[ 175.966980][T401365] __uac_clock_find_source: Clock Selector 0xb has pin 2 selected <6>[ 176.026251][T400354] __uac_clock_find_source: Clock Selector 0xc has pin 1 selected <6>[ 176.032406][T400354] __uac_clock_find_source: Clock Selector 0xb has pin 1 selected There is no noise and I think this should be a firmware bug. Thanks Chihhao 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 X-Spam-Level: X-Spam-Status: No, score=-7.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7181C4338F for ; Thu, 5 Aug 2021 08:00:49 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 613F861040 for ; Thu, 5 Aug 2021 08:00:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 613F861040 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ardz09miLf1jtEb11UYFVt8uTVcCAbvzmpiTQ7JRhkc=; b=EriCnqAbsU4mr0 mIRiqlkBcziNL2rremlwEbt9/Bg3XK/hzWmpzdvy3OAz4myCzy58CWYbjUMKnAoUNxgPjmW/Bq74j E9bgup8m8ZkTpOUjqGV588rUbngYaAxWnhQB1BRQSJxRhp9hW+OX53XWQvaiqjy9nvyIHYBaoazgq B3i8Khps9aNmfkYSgi7DNRLSzBxF1e5Gp/BcuXwVhmw6DSwbvc3L5BSXywaj/f3/lfh/4utOXs2w1 MNjFGd8e57heLyavsFY2X7/SMqWWX9+OJD4Bg8c0wkJYYbYoOveGJ2GvngPKENFtbqGquK3wTs925 xn9zYBjc94r8ZG0RAd8A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mBYIy-008YB9-By; Thu, 05 Aug 2021 08:00:40 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mBYIv-008Y52-SI; Thu, 05 Aug 2021 08:00:39 +0000 X-UUID: fec91911fe13437ab1d5dc1e0ce73d1a-20210805 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=6g+G19yOBM7NMq+Lhft2E2pkIHoHbfTNbAIluvK7rfM=; b=gXG+4riHIK7Uzj7Ikt5KHfOAkHad5e+a9t64dY6AOwRbx6nC+bfY3x3Fk5rOqJS7+Tg0/uXgTIv3VwJ+2jM/DPzW6LrLKHgPcX3leV/OrCQyVjR+NpKBnKL4ucKUpk/shYrgYig4GBJULAB3iitQ1WwWlrlMcIvyM8ZAVZqf5fo=; X-UUID: fec91911fe13437ab1d5dc1e0ce73d1a-20210805 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 11768871; Thu, 05 Aug 2021 01:00:31 -0700 Received: from MTKMBS06N2.mediatek.inc (172.21.101.130) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 5 Aug 2021 00:54:07 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 5 Aug 2021 15:54:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 5 Aug 2021 15:54:05 +0800 From: To: CC: , , , , , , , , , Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting Date: Thu, 5 Aug 2021 15:54:01 +0800 Message-ID: <20210805075401.21170-1-chihhao.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210805_010037_975761_ACCB2242 X-CRM114-Status: UNSURE ( 6.43 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@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: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: chihhao chen Hi Geraldo Nascimento, For echo test, it means we use this earphone to receive and play sounds at the same time. We found in this case serious noise problem happens. Log as follows with your patch <6>[ 175.960387][T401365] __uac_clock_find_source: Clock Selector 0xc has pin 2 selected <6>[ 175.966980][T401365] __uac_clock_find_source: Clock Selector 0xb has pin 2 selected <6>[ 176.026251][T400354] __uac_clock_find_source: Clock Selector 0xc has pin 1 selected <6>[ 176.032406][T400354] __uac_clock_find_source: Clock Selector 0xb has pin 1 selected There is no noise and I think this should be a firmware bug. Thanks Chihhao _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek 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 X-Spam-Level: X-Spam-Status: No, score=-7.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30F4FC4338F for ; Thu, 5 Aug 2021 08:02:51 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id E5FFD61040 for ; Thu, 5 Aug 2021 08:02:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E5FFD61040 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=iybCVnYJitGddeQy3frQ4lhAo+GgoX4wYJ1ADxquVNI=; b=38kTUV/f2wcjJY HQNCTPAkILPnHmCG0zHQ4n/Obd5iDuiV9tBc8dHQDV92qdxjSRrhGUz1axxIDzk3/82olD98Xsxtj wv7gyYKL7HpUbV1jG3DR+xQOyXCvm9ciH8or2lIen6wMAxkKAf6o1m4Z8DNenml9zhISrTEbllMyT /6exzXxoCbUrfS4vbHolq2/243EnhDSM5gXldOtYgSX8WmHZRyAmusXVLKtvwA1ah5/3EvjfXeqbN MOFeo8slvaGa0dDLpB+r2qTxBOLVbZUfzkan5Smw+AKE/YsiwySENf+uRVjcrk2amJBY8AxikgR9H tQpLXrb75eWRAAF8sl4w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mBYJ0-008YBL-Go; Thu, 05 Aug 2021 08:00:42 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mBYIv-008Y52-SI; Thu, 05 Aug 2021 08:00:39 +0000 X-UUID: fec91911fe13437ab1d5dc1e0ce73d1a-20210805 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=6g+G19yOBM7NMq+Lhft2E2pkIHoHbfTNbAIluvK7rfM=; b=gXG+4riHIK7Uzj7Ikt5KHfOAkHad5e+a9t64dY6AOwRbx6nC+bfY3x3Fk5rOqJS7+Tg0/uXgTIv3VwJ+2jM/DPzW6LrLKHgPcX3leV/OrCQyVjR+NpKBnKL4ucKUpk/shYrgYig4GBJULAB3iitQ1WwWlrlMcIvyM8ZAVZqf5fo=; X-UUID: fec91911fe13437ab1d5dc1e0ce73d1a-20210805 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 11768871; Thu, 05 Aug 2021 01:00:31 -0700 Received: from MTKMBS06N2.mediatek.inc (172.21.101.130) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 5 Aug 2021 00:54:07 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 5 Aug 2021 15:54:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 5 Aug 2021 15:54:05 +0800 From: To: CC: , , , , , , , , , Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting Date: Thu, 5 Aug 2021 15:54:01 +0800 Message-ID: <20210805075401.21170-1-chihhao.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210805_010037_975761_ACCB2242 X-CRM114-Status: UNSURE ( 6.43 ) X-CRM114-Notice: Please train this message. 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: chihhao chen Hi Geraldo Nascimento, For echo test, it means we use this earphone to receive and play sounds at the same time. We found in this case serious noise problem happens. Log as follows with your patch <6>[ 175.960387][T401365] __uac_clock_find_source: Clock Selector 0xc has pin 2 selected <6>[ 175.966980][T401365] __uac_clock_find_source: Clock Selector 0xb has pin 2 selected <6>[ 176.026251][T400354] __uac_clock_find_source: Clock Selector 0xc has pin 1 selected <6>[ 176.032406][T400354] __uac_clock_find_source: Clock Selector 0xb has pin 1 selected There is no noise and I think this should be a firmware bug. Thanks Chihhao _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel