ASoC/mpc5200: get rid of the appl_ptr tracking nonsense

Sound drivers PCM DMA is supposed to free-run until told to stop
by the trigger callback.  The current code tries to track appl_ptr,
to avoid stale buffer data getting played out at the end of the
data stream.  Unfortunately it also results in race conditions
which can cause the audio to stall.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h
index 529f7a094479..d9c741bf9ab6 100644
--- a/sound/soc/fsl/mpc5200_dma.h
+++ b/sound/soc/fsl/mpc5200_dma.h
@@ -19,8 +19,6 @@
  */
 struct psc_dma_stream {
         struct snd_pcm_runtime *runtime;
-        snd_pcm_uframes_t appl_ptr;
-
         int active;
         struct psc_dma *psc_dma;
         struct bcom_task *bcom_task;