From patchwork Tue Feb 14 16:14:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 13140472 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1FCA5C05027 for ; Tue, 14 Feb 2023 16:18:12 +0000 (UTC) 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=Sx1eRHcipq+eqqiSHTP/fxGOeIoGfGkHUIBw68KdXII=; b=gaWoJP55XusG2M Fhb629Vjpq61tLWhpXQVzjzD7xNPURqArfUktSN60T4aJklPrrjptqCTMe1DIxNH6P5fEbgAydHTF Ct6pMOytexFejTlxZ8PwG6KDSz13lv3GfsueAe/C9fRtATMJjr+dqPMCmKQmBqZqadVah74Pag7uf OYnzQvS9F+ArFLahhNHse541fyp+AVJDnQ6GDTgjN5x9khMB2KZoJJiSZiaSYhzHx3XM9YgThjLlG AEfNvTCEpdSLo5AJnF+kwizToNPrWjWamMvuC9o7ZYvMMN7JWpaLB9iXg/C5TWd63EP5v6MCbMpUE oDay8ydJsZwtHkRCaszw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pRxzP-002l6l-0T; Tue, 14 Feb 2023 16:17:07 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pRxzJ-002l3E-2X for linux-arm-kernel@lists.infradead.org; Tue, 14 Feb 2023 16:17:02 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1676391421; x=1707927421; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2i+DTZuHLMmNkyjv/Ro4aJ2pGv9HHR2Ky3DwJ9SA03Y=; b=BAOF8DByM65dVCgscQDeWoFfvvsvx33VLBu3SeeGivlDMAZwNf/HC3bs 3j1/2Od3rbmRnWen6HTL2lko4zaeTobeNd9YA2ZqH5uuktAVIDf52pRvw CRpU6nhLxfmdTr0PqNXFKoVx+75uJo1Nm17OJj7Vyb7mQvthQyXXU9IXI ij/j/eSefAkK1OaeiaEZrAUvtCte/gYxe+91Ym7dGYxv7CMAg1wVwLweZ btCAhD4qz+irpvvW0Z4H+9YVIOdAYmzLSc0GuUTFFrZdMT3d7OX5HVP4d ylUY3oIT9g5jux3RY0+Itfcvb4RrYWBvsKD2mkg4gpDp+Aj3tgBtDW6lo Q==; X-IronPort-AV: E=Sophos;i="5.97,297,1669100400"; d="scan'208";a="196891398" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 14 Feb 2023 09:17:00 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16; Tue, 14 Feb 2023 09:16:58 -0700 Received: from m18063-ThinkPad-T460p.mchp-main.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.16 via Frontend Transport; Tue, 14 Feb 2023 09:16:54 -0700 From: Claudiu Beznea To: , , , , , , , , CC: , , , , Claudiu Beznea Subject: [PATCH 1/3] ASoC: soc-generic-dmaengine-pcm: add option to start DMA after DAI Date: Tue, 14 Feb 2023 18:14:33 +0200 Message-ID: <20230214161435.1088246-2-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230214161435.1088246-1-claudiu.beznea@microchip.com> References: <20230214161435.1088246-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230214_081701_251322_ACFF6F54 X-CRM114-Status: GOOD ( 17.93 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add option to start DMA component after DAI trigger. This is done by filling the new struct snd_dmaengine_pcm_config::start_dma_last. Signed-off-by: Claudiu Beznea --- include/sound/dmaengine_pcm.h | 1 + include/sound/soc-component.h | 2 ++ sound/soc/soc-generic-dmaengine-pcm.c | 8 +++++--- sound/soc/soc-pcm.c | 27 ++++++++++++++++++++++----- 4 files changed, 30 insertions(+), 8 deletions(-) diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index 2df54cf02cb3..4e3dcb94576d 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -149,6 +149,7 @@ struct snd_dmaengine_pcm_config { const struct snd_pcm_hardware *pcm_hardware; unsigned int prealloc_buffer_size; + unsigned int start_dma_last; }; int snd_dmaengine_pcm_register(struct device *dev, diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h index 3203d35bc8c1..0814ed143864 100644 --- a/include/sound/soc-component.h +++ b/include/sound/soc-component.h @@ -190,6 +190,8 @@ struct snd_soc_component_driver { bool use_dai_pcm_id; /* use DAI link PCM ID as PCM device number */ int be_pcm_base; /* base device ID for all BE PCMs */ + unsigned int start_dma_last; + #ifdef CONFIG_DEBUG_FS const char *debugfs_prefix; #endif diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index 3b99f619e37e..264e87af6b58 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -318,7 +318,7 @@ static int dmaengine_copy_user(struct snd_soc_component *component, return 0; } -static const struct snd_soc_component_driver dmaengine_pcm_component = { +static struct snd_soc_component_driver dmaengine_pcm_component = { .name = SND_DMAENGINE_PCM_DRV_NAME, .probe_order = SND_SOC_COMP_ORDER_LATE, .open = dmaengine_pcm_open, @@ -329,7 +329,7 @@ static const struct snd_soc_component_driver dmaengine_pcm_component = { .pcm_construct = dmaengine_pcm_new, }; -static const struct snd_soc_component_driver dmaengine_pcm_component_process = { +static struct snd_soc_component_driver dmaengine_pcm_component_process = { .name = SND_DMAENGINE_PCM_DRV_NAME, .probe_order = SND_SOC_COMP_ORDER_LATE, .open = dmaengine_pcm_open, @@ -425,7 +425,7 @@ static const struct snd_dmaengine_pcm_config snd_dmaengine_pcm_default_config = int snd_dmaengine_pcm_register(struct device *dev, const struct snd_dmaengine_pcm_config *config, unsigned int flags) { - const struct snd_soc_component_driver *driver; + struct snd_soc_component_driver *driver; struct dmaengine_pcm *pcm; int ret; @@ -450,6 +450,8 @@ int snd_dmaengine_pcm_register(struct device *dev, else driver = &dmaengine_pcm_component; + driver->start_dma_last = config->start_dma_last; + ret = snd_soc_component_initialize(&pcm->component, driver, dev); if (ret) goto err_free_dma; diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 005b179a770a..ec429b93a4ee 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1088,22 +1088,39 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - int ret = -EINVAL, _ret = 0; + struct snd_soc_component *component; + int ret = -EINVAL, _ret = 0, start_dma_last = 0, i; int rollback = 0; switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + /* Do we need to start dma first? */ + for_each_rtd_components(rtd, i, component) { + if (component->driver->start_dma_last) { + start_dma_last = 1; + break; + } + } + ret = snd_soc_link_trigger(substream, cmd, 0); if (ret < 0) goto start_err; - ret = snd_soc_pcm_component_trigger(substream, cmd, 0); - if (ret < 0) - goto start_err; + if (start_dma_last) { + ret = snd_soc_pcm_dai_trigger(substream, cmd, 0); + if (ret < 0) + goto start_err; + + ret = snd_soc_pcm_component_trigger(substream, cmd, 0); + } else { + ret = snd_soc_pcm_component_trigger(substream, cmd, 0); + if (ret < 0) + goto start_err; - ret = snd_soc_pcm_dai_trigger(substream, cmd, 0); + ret = snd_soc_pcm_dai_trigger(substream, cmd, 0); + } start_err: if (ret < 0) rollback = 1;