From patchwork Tue Mar 2 08:27:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liao, Bard" X-Patchwork-Id: 392184 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=-11.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 64284C433E9 for ; Tue, 2 Mar 2021 08:28:26 +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 9E91E6148E for ; Tue, 2 Mar 2021 08:28:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E91E6148E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@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 05342168C; Tue, 2 Mar 2021 09:27:32 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 05342168C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1614673702; bh=7IELr/ye3VEMFfm+7UYSNs7tWvTjeLaMjyW6kT1clNs=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=iHmuWS2Fihc/Y6L9JUIfnvlc/EQBqBGymjQyLwv+isjs80bCWBnh+zFV9k2Iix1t9 pEoArUUIsrAc9DBM5v29lUQgWeNStMGX9O2Eo4AeTfJTcJesm918xm+WNRENRTtLOs gS98vxCO5EMU2NVHUYAPHraJUzFmACXP7Ul0tjK8= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 7C52DF80269; Tue, 2 Mar 2021 09:27:31 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 2D4BFF80269; Tue, 2 Mar 2021 09:27:30 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (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 524F5F80227 for ; Tue, 2 Mar 2021 09:27:25 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 524F5F80227 IronPort-SDR: XXc0vxxhd59D5TzJxPsGGCT0EjfUaE9t8hMeW2NoXdg17axKN9uiHkt5zr1SgYWrC2SHC2o1nQ frnJbHXGTR4g== X-IronPort-AV: E=McAfee;i="6000,8403,9910"; a="184302351" X-IronPort-AV: E=Sophos;i="5.81,216,1610438400"; d="scan'208";a="184302351" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2021 00:27:23 -0800 IronPort-SDR: FELPuuSxJMRfmBQIfF71vfY8TV+Wl4uWBHOM9QLs+JL1hUuXr3WcQrBBAF9OHmkODhb/knIpE9 MDiwUHji5Btg== X-IronPort-AV: E=Sophos;i="5.81,216,1610438400"; d="scan'208";a="406613386" Received: from bard-ubuntu.sh.intel.com ([10.239.13.33]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2021 00:27:19 -0800 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Subject: [PATCH v2 0/3] soundwire: clear bus clash/parity interrupt before the mask is enabled Date: Tue, 2 Mar 2021 16:27:17 +0800 Message-Id: <20210302082720.12322-1-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 Cc: vinod.koul@linaro.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, pierre-louis.bossart@linux.intel.com, hui.wang@canonical.com, srinivas.kandagatla@linaro.org, sanyog.r.kale@intel.com, rander.wang@linux.intel.com, bard.liao@intel.com 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" The SoundWire specification allows a Slave device to report a bus clash or parity error with the in-band interrupt mechanism. Unfortunately, on some platforms, these errors are randomly reported and don't seem to be valid. This series suggests the addition of a Master level quirk to discard such interrupts. The quirk should in theory have been added at the Slave level, but since the problem was detected with different generations of Slave devices it's hard to point to a specific IP. The problem might also be board-dependent and hence dealing with a Master quirk is simpler. v2: - Reorder the patches sequence. - Add comments about each quirk. - Use u64 quirks. Bard Liao (3): soundwire: add master quirks for bus clash and parity soundwire: bus: handle master quirks for bus clash and parity soundwire: intel: add master quirks for bus clash and parity drivers/soundwire/bus.c | 39 +++++++++++++++++++++++++++++++++++ drivers/soundwire/intel.c | 3 +++ include/linux/soundwire/sdw.h | 22 ++++++++++++++++++++ 3 files changed, 64 insertions(+)