[ALSA] soc - Ensure PCMs are suspended

This fixes a bug whereby PCMs were not being suspended when the rest of the
audio subsystem was suspended.

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 0afcdfe..6b51ff2 100644 (file)
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -447,6 +447,9 @@ struct snd_soc_dai_link  {
 
        /* codec/machine specific init - e.g. add machine controls */
        int (*init)(struct snd_soc_codec *codec);
+
+       /* DAI pcm */
+       struct snd_pcm *pcm;
 };
 
 /* SoC machine */

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 7d51be8..5f86e03 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -645,6 +645,10 @@ static int soc_suspend(struct platform_device *pdev, pm_message_t state)
                        dai->dai_ops.digital_mute(dai, 1);
        }
 
+       /* suspend all pcms */
+       for (i = 0; i < machine->num_links; i++)
+               snd_pcm_suspend_all(machine->dai_link[i].pcm);
+
        if (machine->suspend_pre)
                machine->suspend_pre(pdev, state);
 
@@ -879,6 +883,7 @@ static int soc_new_pcm(struct snd_soc_device *socdev,
                return ret;
        }
 
+       dai_link->pcm = pcm;
        pcm->private_data = rtd;
        soc_pcm_ops.mmap = socdev->platform->pcm_ops->mmap;
        soc_pcm_ops.pointer = socdev->platform->pcm_ops->pointer;