From patchwork Thu Sep 3 20:47:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bard Liao X-Patchwork-Id: 11756315 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D895F109A for ; Fri, 4 Sep 2020 08:44:49 +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 6BE47206B7 for ; Fri, 4 Sep 2020 08:44:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="YiPpGNTt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6BE47206B7 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 C70BF1AE4; Fri, 4 Sep 2020 10:44:03 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C70BF1AE4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1599209087; bh=xqMXycONFiAk5hnUDIsqYbVoH2KYF5FMAuxTg1bvMec=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=YiPpGNTtJj84gROl0OZp7MvjMLGaxXG9EpXYv74U+Mgvo3NZz0wX5ZD3r5HGCG7+C CvcBokGL/f66CcIZiygAhEmGSraa+ijXyK22sO+Ka6h7wnuuet3gRnSgC4HfvuB+IS 5iyaej3aeg3od+AobJ22NrRxIfnCIyeol5p/qcLk= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 68AF0F802DF; Fri, 4 Sep 2020 10:41:36 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5F08CF802E9; Fri, 4 Sep 2020 10:41:35 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=DATE_IN_PAST_06_12, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) (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 DC8D8F802DF for ; Fri, 4 Sep 2020 10:41:27 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz DC8D8F802DF IronPort-SDR: LyJmIWrq6dXidmznbKSQZK8qg1ZppZJdee1hAqMcZhS1OhvQa5iOn3R/zwcbABKMu/tiy8qmaC DU8kYHI6l7Nw== X-IronPort-AV: E=McAfee;i="6000,8403,9733"; a="175765415" X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="175765415" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 01:41:26 -0700 IronPort-SDR: t4DIOjvA31ryQ+jX+pK3pIo9PXu3FLQ1Gfbq37AoSaLMQRS67KS3dg0+8LOJ4RkKoej2onhkGE MYpm+Cdom2Lg== X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="284358890" Received: from bard-ubuntu.sh.intel.com ([10.239.13.33]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 01:41:23 -0700 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Subject: [PATCH v2 1/4] soundwire: stream: fix NULL/IS_ERR confusion Date: Fri, 4 Sep 2020 04:47:36 +0800 Message-Id: <20200903204739.31206-2-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com> References: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com> Cc: pierre-louis.bossart@linux.intel.com, vinod.koul@linaro.org, tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, ranjani.sridharan@linux.intel.com, hui.wang@canonical.com, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, mengdong.lin@intel.com, 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" From: Pierre-Louis Bossart snd_soc_dai_get_sdw_stream() can only return -ENOTSUPP or the stream, NULL is not a possible value. Fixes: 4550569bd779f ('soundwire: stream: add helper to startup/shutdown streams') Reported-by: Bard Liao Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Signed-off-by: Bard Liao --- drivers/soundwire/stream.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index e4cf484f5905..12a4a4bba85a 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -1914,7 +1914,7 @@ void sdw_shutdown_stream(void *sdw_substream) sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream); - if (!sdw_stream) { + if (IS_ERR(sdw_stream)) { dev_err(rtd->dev, "no stream found for DAI %s", dai->name); return; } From patchwork Thu Sep 3 20:47:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bard Liao X-Patchwork-Id: 11756317 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 29A2A13B1 for ; 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Fri, 4 Sep 2020 10:41:30 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 83821F802E0 IronPort-SDR: RzNEEJn5IyuhcOabZq2ektCf1LKzX16uE1qO2trC89SkkvRyHQQxA3nEsEejdyutpGR97Lh3pB YF2UVSdF/AYA== X-IronPort-AV: E=McAfee;i="6000,8403,9733"; a="175765417" X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="175765417" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 01:41:30 -0700 IronPort-SDR: gOWvG2y6N5bUwa5hD67rPHc1zS22y1HocsBCPWd4WAmwYEUMOLgQ4zoPVhOL/6da7g+QRQWBRp T4MUWWVFHEKw== X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="284358906" Received: from bard-ubuntu.sh.intel.com ([10.239.13.33]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 01:41:26 -0700 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Subject: [PATCH v2 2/4] soundwire: intel: fix NULL/ERR_PTR confusion Date: Fri, 4 Sep 2020 04:47:37 +0800 Message-Id: <20200903204739.31206-3-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com> References: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com> Cc: pierre-louis.bossart@linux.intel.com, vinod.koul@linaro.org, tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, ranjani.sridharan@linux.intel.com, hui.wang@canonical.com, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, mengdong.lin@intel.com, 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" From: Pierre-Louis Bossart snd_soc_dai_get_sdw_stream() can only return the pointer to stream or an ERR_PTR value, NULL is not a possible value. Fixes: 09553140c8d7b ('soundwire: intel: implement get_sdw_stream() operations') Reported-by: Bard Liao Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Signed-off-by: Bard Liao --- drivers/soundwire/intel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 710f5eba936b..7c20b7daf1c8 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1142,7 +1142,7 @@ static void *intel_get_sdw_stream(struct snd_soc_dai *dai, dma = dai->capture_dma_data; if (!dma) - return NULL; + return ERR_PTR(-EINVAL); return dma->stream; } From patchwork Thu Sep 3 20:47:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bard Liao X-Patchwork-Id: 11756319 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9B0F2138C for ; Fri, 4 Sep 2020 08:45:52 +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 2ECC1206B7 for ; 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b=dArBlvhb1i+BPd222rfpyCCwt5cF+AC6u4rbG+jh8FjNfXik0OH3uTndzGJ4a77Lh YSS1HbXB643EIYXjV0YWbOTv6xvsnMjeSIJGicQdhiySIa2p2GmcapnFBZK9WFgFfa 6MOvMus2afXY+N6Cqyu2mIFNljihZlzum7n/sQzM= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 341C3F802FF; Fri, 4 Sep 2020 10:41:44 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 246C8F80305; Fri, 4 Sep 2020 10:41:42 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: * X-Spam-Status: No, score=1.1 required=5.0 tests=DATE_IN_PAST_06_12, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) (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 A4A4AF802EA for ; Fri, 4 Sep 2020 10:41:35 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz A4A4AF802EA IronPort-SDR: aCqDUeytlCyhFKD7njSUkfrEFYfX7aVxLpXHtNv/RWfVxyWZ7ZOKrE325/NSibtbNVPi8C0rjr HFeH2+LS4DRg== X-IronPort-AV: E=McAfee;i="6000,8403,9733"; a="175765422" X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="175765422" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 01:41:34 -0700 IronPort-SDR: GGJd22o4rz1ij9zEaQAK78nZoMsaMSyi8PaKMuV8rC5xbJdjIA9BWATs+bJsWhG2TRj61lpSpE Fm29k7JjAX9w== X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="284358923" Received: from bard-ubuntu.sh.intel.com ([10.239.13.33]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 01:41:30 -0700 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Subject: [PATCH v2 3/4] soundwire: intel: remove .trigger operation Date: Fri, 4 Sep 2020 04:47:38 +0800 Message-Id: <20200903204739.31206-4-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com> References: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com> Cc: pierre-louis.bossart@linux.intel.com, vinod.koul@linaro.org, tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, ranjani.sridharan@linux.intel.com, hui.wang@canonical.com, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, mengdong.lin@intel.com, 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" From: Pierre-Louis Bossart Now that the stream trigger is handled at the dai-link level, there is no need for a dai-level trigger any longer. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao --- drivers/soundwire/intel.c | 39 --------------------------------------- 1 file changed, 39 deletions(-) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 7c20b7daf1c8..d208c49b157a 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1013,43 +1013,6 @@ static int intel_prepare(struct snd_pcm_substream *substream, return ret; } -static int intel_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct sdw_cdns_dma_data *dma; - int ret; - - dma = snd_soc_dai_get_dma_data(dai, substream); - if (!dma) { - dev_err(dai->dev, "failed to get dma data in %s", __func__); - return -EIO; - } - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - case SNDRV_PCM_TRIGGER_RESUME: - ret = sdw_enable_stream(dma->stream); - break; - - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_STOP: - ret = sdw_disable_stream(dma->stream); - break; - - default: - ret = -EINVAL; - break; - } - - if (ret) - dev_err(dai->dev, - "%s trigger %d failed: %d", - __func__, cmd, ret); - return ret; -} - static int intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -1151,7 +1114,6 @@ static const struct snd_soc_dai_ops intel_pcm_dai_ops = { .startup = intel_startup, .hw_params = intel_hw_params, .prepare = intel_prepare, - .trigger = intel_trigger, .hw_free = intel_hw_free, .shutdown = intel_shutdown, .set_sdw_stream = intel_pcm_set_sdw_stream, @@ -1162,7 +1124,6 @@ static const struct snd_soc_dai_ops intel_pdm_dai_ops = { .startup = intel_startup, .hw_params = intel_hw_params, .prepare = intel_prepare, - .trigger = intel_trigger, .hw_free = intel_hw_free, .shutdown = intel_shutdown, .set_sdw_stream = intel_pdm_set_sdw_stream, From patchwork Thu Sep 3 20:47:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bard Liao X-Patchwork-Id: 11756321 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BFAFB13B1 for ; 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Fri, 4 Sep 2020 10:41:37 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 0E818F802E0 IronPort-SDR: miAKrA5yu/k3RumDybudcDu9BIZCuPK0HiUAfziqOKjLmHu0SxYCTFIwm0Z7GJ+y0TSpPqFQ6B d5WwGKbGPYvQ== X-IronPort-AV: E=McAfee;i="6000,8403,9733"; a="175765424" X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="175765424" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 01:41:37 -0700 IronPort-SDR: +41t/VS2hSWWaxdGLnWlVJ1+O3XYm7q28Gwb7SqZ22y47R7HThh6ts1dka0oIUXikUWt38SVzs 2JGHGtx5eT8A== X-IronPort-AV: E=Sophos;i="5.76,389,1592895600"; d="scan'208";a="284358934" Received: from bard-ubuntu.sh.intel.com ([10.239.13.33]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2020 01:41:34 -0700 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Subject: [PATCH v2 4/4] soundwire: intel: remove stream handling from .prepare and .hw_free Date: Fri, 4 Sep 2020 04:47:39 +0800 Message-Id: <20200903204739.31206-5-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com> References: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com> Cc: pierre-louis.bossart@linux.intel.com, vinod.koul@linaro.org, tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, ranjani.sridharan@linux.intel.com, hui.wang@canonical.com, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, mengdong.lin@intel.com, 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" From: Pierre-Louis Bossart Now that the stream is handled at the dai-link level (in the machine driver), we can remove the stream handling at the dai level. We still need these callbacks to perform dai-level resource handling (i.e. addition/removal of a master). Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao --- drivers/soundwire/intel.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index d208c49b157a..a254f271acf2 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -967,7 +967,7 @@ static int intel_prepare(struct snd_pcm_substream *substream, struct sdw_intel *sdw = cdns_to_intel(cdns); struct sdw_cdns_dma_data *dma; int ch, dir; - int ret; + int ret = 0; dma = snd_soc_dai_get_dma_data(dai, substream); if (!dma) { @@ -1003,13 +1003,8 @@ static int intel_prepare(struct snd_pcm_substream *substream, dma->hw_params, sdw->instance, dma->pdi->intel_alh_id); - if (ret) - goto err; } - ret = sdw_prepare_stream(dma->stream); - -err: return ret; } @@ -1025,12 +1020,12 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) if (!dma) return -EIO; - ret = sdw_deprepare_stream(dma->stream); - if (ret) { - dev_err(dai->dev, "sdw_deprepare_stream: failed %d", ret); - return ret; - } - + /* + * The sdw stream state will transition to RELEASED when stream-> + * master_list is empty. So the stream state will transition to + * DEPREPARED for the first cpu-dai and to RELEASED for the last + * cpu-dai. + */ ret = sdw_stream_remove_master(&cdns->bus, dma->stream); if (ret < 0) { dev_err(dai->dev, "remove master from stream %s failed: %d\n",