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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>
This commit is contained in:
Jeeja KP 2015-12-18 15:12:08 +05:30 коммит произвёл Mark Brown
Родитель 748a1d5a3f
Коммит 920982c93c
1 изменённых файлов: 12 добавлений и 10 удалений
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22
sound/soc/intel/skylake/skl-pcm.c
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@ -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: