[PATCH v2] ASoC: soc-pcm: Use delay set in component pointer function

[Akshu Agrawal]

Take into account the base delay set in pointer callback.

There are cases where a pointer function populates
runtime->delay, such as:
./sound/pci/hda/hda_controller.c
./sound/soc/intel/atom/sst-mfld-platform-pcm.c

This delay was getting lost and was overwritten by delays
from codec or cpu dai delay function if exposed.

Now,
Total delay = base delay + cpu_dai delay + codec_dai delay

Signed-off-by: Akshu Agrawal <akshu.agra...@amd.com>
---
 sound/soc/soc-pcm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 98be04b..e8b98bfd 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1179,6 +1179,9 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct 
snd_pcm_substream *substream)
        snd_pcm_sframes_t codec_delay = 0;
        int i;
 
+       /* clearing the previous total delay */
+       runtime->delay = 0;
+
        for_each_rtdcom(rtd, rtdcom) {
                component = rtdcom->component;
 
@@ -1190,6 +1193,8 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct 
snd_pcm_substream *substream)
                offset = component->driver->ops->pointer(substream);
                break;
        }
+       /* base delay if assigned in pointer callback */
+       delay = runtime->delay;
 
        if (cpu_dai->driver->ops->delay)
                delay += cpu_dai->driver->ops->delay(substream, cpu_dai);
-- 
1.9.1