From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Koul Subject: [PATCH 13/14] ASoC: Intel: Skylake: Reconfigure Link stream on suspend/resume Date: Fri, 11 Dec 2015 12:14:26 +0530 Message-ID: <1449816267-11910-14-git-send-email-vinod.koul@intel.com> References: <1449816267-11910-1-git-send-email-vinod.koul@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by alsa0.perex.cz (Postfix) with ESMTP id D2F3C266572 for ; Fri, 11 Dec 2015 07:42:00 +0100 (CET) In-Reply-To: <1449816267-11910-1-git-send-email-vinod.koul@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: tiwai@suse.de, patches.audio@intel.com, liam.r.girdwood@linux.intel.com, Vinod Koul , broonie@kernel.org, Jeeja KP List-Id: alsa-devel@alsa-project.org From: Jeeja KP On suspend the link register are lost so we need to reconfigure them in resume. This patch adds the reconfiguration of the link register in trigger resume. Signed-off-by: Jeeja KP Signed-off-by: Vinod Koul --- sound/soc/intel/skylake/skl-pcm.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index 4a437e3c918c..f582b06a119d 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -496,11 +496,6 @@ static int skl_link_pcm_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *codec_dai = rtd->codec_dai; struct hdac_ext_link *link; - if (link_dev->link_prepared) { - dev_dbg(dai->dev, "already stream is prepared - returning\n"); - return 0; - } - dma_params = (struct skl_dma_params *) snd_soc_dai_get_dma_data(codec_dai, substream); if (dma_params) @@ -508,14 +503,15 @@ static int skl_link_pcm_prepare(struct snd_pcm_substream *substream, dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d codec_dai_name=%s\n", hdac_stream(link_dev)->stream_tag, format_val, codec_dai->name); - snd_hdac_ext_link_stream_reset(link_dev); - - snd_hdac_ext_link_stream_setup(link_dev, format_val); - link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name); if (!link) return -EINVAL; + snd_hdac_ext_bus_link_power_up(link); + snd_hdac_ext_link_stream_reset(link_dev); + + snd_hdac_ext_link_stream_setup(link_dev, format_val); + snd_hdac_ext_link_set_stream_id(link, hdac_stream(link_dev)->stream_tag); link_dev->link_prepared = 1; @@ -527,12 +523,16 @@ static int skl_link_pcm_trigger(struct snd_pcm_substream *substream, { struct hdac_ext_stream *link_dev = snd_soc_dai_get_dma_data(dai, substream); + struct hdac_ext_bus *ebus = get_bus_ctx(substream); + struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd); switch (cmd) { + case SNDRV_PCM_TRIGGER_RESUME: + skl_link_pcm_prepare(substream, dai); case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - case SNDRV_PCM_TRIGGER_RESUME: + snd_hdac_ext_stream_decouple(ebus, stream, true); snd_hdac_ext_link_stream_start(link_dev); break; @@ -540,6 +540,8 @@ static int skl_link_pcm_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: snd_hdac_ext_link_stream_clear(link_dev); + if (cmd == SNDRV_PCM_TRIGGER_SUSPEND) + snd_hdac_ext_stream_decouple(ebus, stream, false); break; default: -- 1.9.1