ASoC: SOF: add delay function support in sof framework

[linux-2.6-microblaze.git] / sound / soc / sof / pcm.c

diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c
index 34d40c5..445acb5 100644 (file)
--- a/sound/soc/sof/pcm.c
+++ b/sound/soc/sof/pcm.c
@@ -646,6 +646,18 @@ static int sof_pcm_ack(struct snd_soc_component *component,
        return snd_sof_pcm_platform_ack(sdev, substream);
 }
 
+static snd_pcm_sframes_t sof_pcm_delay(struct snd_soc_component *component,
+                                      struct snd_pcm_substream *substream)
+{
+       struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
+       const struct sof_ipc_pcm_ops *pcm_ops = sof_ipc_get_ops(sdev, pcm);
+
+       if (pcm_ops && pcm_ops->delay)
+               return pcm_ops->delay(component, substream);
+
+       return 0;
+}
+
 void snd_sof_new_platform_drv(struct snd_sof_dev *sdev)
 {
        struct snd_soc_component_driver *pd = &sdev->plat_drv;
@@ -670,6 +682,7 @@ void snd_sof_new_platform_drv(struct snd_sof_dev *sdev)
        pd->trigger = sof_pcm_trigger;
        pd->pointer = sof_pcm_pointer;
        pd->ack = sof_pcm_ack;
+       pd->delay = sof_pcm_delay;
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMPRESS)
        pd->compress_ops = &sof_compressed_ops;