From patchwork Tue Sep 9 09:41:27 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Subhransu S. Prusty" X-Patchwork-Id: 4867541 Return-Path: X-Original-To: patchwork-alsa-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 9C33F9F32E for ; Tue, 9 Sep 2014 10:05:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AF3DD20149 for ; Tue, 9 Sep 2014 10:05:23 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id 16A78200E7 for ; Tue, 9 Sep 2014 10:05:22 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 0E27B265230; Tue, 9 Sep 2014 12:05:21 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from alsa0.perex.cz (localhost [IPv6:::1]) by alsa0.perex.cz (Postfix) with ESMTP id B63A826512A; Tue, 9 Sep 2014 12:04:36 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id E0302265055; Tue, 9 Sep 2014 12:04:35 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by alsa0.perex.cz (Postfix) with ESMTP id 70F95265087 for ; Tue, 9 Sep 2014 12:04:26 +0200 (CEST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP; 09 Sep 2014 03:04:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,491,1406617200"; d="scan'208";a="588467136" Received: from subhransu-udesk1.iind.intel.com ([10.223.96.40]) by fmsmga001.fm.intel.com with ESMTP; 09 Sep 2014 03:04:12 -0700 From: "Subhransu S. Prusty" To: alsa-devel@alsa-project.org Date: Tue, 9 Sep 2014 15:11:27 +0530 Message-Id: <1410255693-6958-5-git-send-email-subhransu.s.prusty@intel.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1410255693-6958-1-git-send-email-subhransu.s.prusty@intel.com> References: <1410255693-6958-1-git-send-email-subhransu.s.prusty@intel.com> Cc: vinod.koul@intel.com, broonie@kernel.org, "Subhransu S. Prusty" , lgirdwood@gmail.com, Lars-Peter Clausen Subject: [alsa-devel] [PATCH v6 04/10] ASoC: Intel: mfld-pcm: add control for powering up/down dsp X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Vinod Koul When we have PCM (FE/BE) opened or DAPM widgets triggered we need power up/down DSP accordingly. The DSP will do ref count of these requests i.e. link these runtime_get/put calls of DSP Signed-off-by: Vinod Koul Signed-off-by: Subhransu S. Prusty --- sound/soc/intel/sst-mfld-platform-pcm.c | 16 ++++++++++++++++ sound/soc/intel/sst-mfld-platform.h | 1 + 2 files changed, 17 insertions(+) diff --git a/sound/soc/intel/sst-mfld-platform-pcm.c b/sound/soc/intel/sst-mfld-platform-pcm.c index 9906b7c..6f5edd6 100644 --- a/sound/soc/intel/sst-mfld-platform-pcm.c +++ b/sound/soc/intel/sst-mfld-platform-pcm.c @@ -322,6 +322,16 @@ static int sst_platform_init_stream(struct snd_pcm_substream *substream) } +static int power_up_sst(struct sst_runtime_stream *stream) +{ + return stream->ops->power(sst->dev, true); +} + +static void power_down_sst(struct sst_runtime_stream *stream) +{ + stream->ops->power(sst->dev, false); +} + static int sst_media_open(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -351,6 +361,10 @@ static int sst_media_open(struct snd_pcm_substream *substream, /* allocate memory for SST API set */ runtime->private_data = stream; + ret_val = power_up_sst(stream); + if (ret_val < 0) + return ret_val; + /* Make sure, that the period size is always even */ snd_pcm_hw_constraint_step(substream->runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS, 2); @@ -370,6 +384,8 @@ static void sst_media_close(struct snd_pcm_substream *substream, int ret_val = 0, str_id; stream = substream->runtime->private_data; + power_down_sst(stream); + str_id = stream->stream_info.str_id; if (str_id) ret_val = stream->ops->close(sst->dev, str_id); diff --git a/sound/soc/intel/sst-mfld-platform.h b/sound/soc/intel/sst-mfld-platform.h index 7092ee3..bf2b6d4 100644 --- a/sound/soc/intel/sst-mfld-platform.h +++ b/sound/soc/intel/sst-mfld-platform.h @@ -129,6 +129,7 @@ struct sst_ops { int (*stream_read_tstamp) (struct device *dev, struct pcm_stream_info *str_info); int (*send_byte_stream)(struct device *dev, struct snd_sst_bytes_v2 *bytes); int (*close) (struct device *dev, unsigned int str_id); + int (*power)(struct device *dev, bool state); }; struct sst_runtime_stream {