The patch
ASoC: Intel: Skylake: Reconfigure Link stream on suspend/resume
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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Thanks, Mark
From 920982c93c26a9a94d1e90221953a2ce16e91c0b Mon Sep 17 00:00:00 2001
From: Jeeja KP jeeja.kp@intel.com Date: Fri, 18 Dec 2015 15:12:08 +0530 Subject: [PATCH] ASoC: Intel: Skylake: Reconfigure Link stream on suspend/resume
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 jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- 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 5a532224cb47..17a64362b283 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: