From patchwork Wed Jan 8 17:54:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre-Louis Bossart X-Patchwork-Id: 193925 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=-14.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 1B148C3F68F for ; Wed, 8 Jan 2020 18:00:13 +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 A4C0720720 for ; Wed, 8 Jan 2020 18:00:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="dtIWdkDS" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A4C0720720 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 ED7421775; Wed, 8 Jan 2020 18:59:20 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz ED7421775 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1578506411; bh=TzL1sRtUuB60T9Y4fU8OedESuNQxTbZNNF3vd5l39x0=; h=From:To:Date:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=dtIWdkDSmH5+6NPep9j78Osa473OtY1d2axRtu7KrTKtc3vN66mmenKXiJQ8o/cis q5NZ6HKSephVayBsAZvIAAIiI2pOws6nK0/I24m+ZbWBY9fbkq9fG3aORCoDoX3bhu EE7TK9szF8cl1fT5o9h6GuyilZhtoWiJq1m71n2c= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 4064EF80299; Wed, 8 Jan 2020 18:55:18 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 471ACF80277; Wed, 8 Jan 2020 18:55:14 +0100 (CET) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) (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 9537BF8026F for ; Wed, 8 Jan 2020 18:55:08 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 9537BF8026F X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Jan 2020 09:55:08 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,410,1571727600"; d="scan'208";a="211617417" Received: from cozturk-mobl2.amr.corp.intel.com (HELO pbossart-mobl3.amr.corp.intel.com) ([10.251.17.77]) by orsmga007.jf.intel.com with ESMTP; 08 Jan 2020 09:55:06 -0800 From: Pierre-Louis Bossart To: alsa-devel@alsa-project.org Date: Wed, 8 Jan 2020 11:54:38 -0600 Message-Id: <20200108175438.13121-7-pierre-louis.bossart@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200108175438.13121-1-pierre-louis.bossart@linux.intel.com> References: <20200108175438.13121-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Cc: Pierre-Louis Bossart , tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, Ranjani Sridharan , vkoul@kernel.org, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, slawomir.blauciak@intel.com, Sanyog Kale , Rander Wang , Bard liao , Rander Wang Subject: [alsa-devel] [PATCH 6/6] soundwire: stream: don't program ports for a stream that has not been prepared 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: Rander Wang In the Intel QA multi-pipelines test case, there are two pipelines for playback and capture on the same bus. The test fails with an error when setting port params: [ 599.224812] rt711 sdw:0:25d:711:0: invalid dpn_prop direction 1 port_num 0 [ 599.224815] sdw_program_slave_port_params failed -22 [ 599.224819] intel-sdw sdw-master-0: Program transport params failed: -22 [ 599.224822] intel-sdw sdw-master-0: Program params failed: -22 [ 599.224828] sdw_enable_stream: SDW0 Pin2-Playback: done This problem is root-caused to the programming of the capture stream ports while it is not yet prepared, the calling sequence is: (1) hw_params for playback. The playback stream provide the port information to Bus. (2) stream_prepare for playback, Transport and port parameters are computed for playback. (3) hw_params for capture. The capture stream provide the port information to Bus, but it has not been prepared so is not accounted for in the bandwidth allocation. (4) stream_enable for playback. Program transport and port parameters for all masters and slaves. Since the transport and port parameters are not computed for capture stream, sdw_program_slave_port_params will generate a error when setting port params for capture. in step (4), we should only program the ports for the stream that have been prepared. A stream that is only in CONFIGURED state should be ignored, its ports will be programmed when it becomes PREPARED. Tested on Comet Lake. GitHub issue: https://github.com/thesofproject/linux/issues/1637 Signed-off-by: Rander Wang Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/stream.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index da10f38298c0..198372977187 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -604,12 +604,23 @@ static int sdw_notify_config(struct sdw_master_runtime *m_rt) * * @bus: SDW bus instance */ -static int sdw_program_params(struct sdw_bus *bus) +static int sdw_program_params(struct sdw_bus *bus, bool prepare) { struct sdw_master_runtime *m_rt; int ret = 0; list_for_each_entry(m_rt, &bus->m_rt_list, bus_node) { + + /* + * this loop walks through all master runtimes for a + * bus, but the ports can only be configured while + * explicitly preparing a stream or handling an + * already-prepared stream otherwise. + */ + if (!prepare && + m_rt->stream->state == SDW_STREAM_CONFIGURED) + continue; + ret = sdw_program_port_params(m_rt); if (ret < 0) { dev_err(bus->dev, @@ -1502,7 +1513,7 @@ static int _sdw_prepare_stream(struct sdw_stream_runtime *stream, program_params: /* Program params */ - ret = sdw_program_params(bus); + ret = sdw_program_params(bus, true); if (ret < 0) { dev_err(bus->dev, "Program params failed: %d\n", ret); goto restore_params; @@ -1602,7 +1613,7 @@ static int _sdw_enable_stream(struct sdw_stream_runtime *stream) bus = m_rt->bus; /* Program params */ - ret = sdw_program_params(bus); + ret = sdw_program_params(bus, false); if (ret < 0) { dev_err(bus->dev, "Program params failed: %d\n", ret); return ret; @@ -1687,7 +1698,7 @@ static int _sdw_disable_stream(struct sdw_stream_runtime *stream) struct sdw_bus *bus = m_rt->bus; /* Program params */ - ret = sdw_program_params(bus); + ret = sdw_program_params(bus, false); if (ret < 0) { dev_err(bus->dev, "Program params failed: %d\n", ret); return ret; @@ -1769,7 +1780,7 @@ static int _sdw_deprepare_stream(struct sdw_stream_runtime *stream) m_rt->ch_count * m_rt->stream->params.bps; /* Program params */ - ret = sdw_program_params(bus); + ret = sdw_program_params(bus, false); if (ret < 0) { dev_err(bus->dev, "Program params failed: %d\n", ret); return ret;