ASoC: Improve pause/unpause performance in Freescale 8610 drivers

Add support for true pause and unpause.  Without this, mplayer will drop some
audio (less than one second, but still noticeable) when pausing playback.

Remove support for PM suspend and resume from the trigger function, since the
driver doesn't support PM anyway.

Optimize the delay after starting capture.  Instead of delaying 1ms, the driver
now polls the hardware.  The new delay is shorter by over 90% yet still
effective.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 58a3fa497503..b3eb8570cd7b 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -142,7 +142,8 @@ static const struct snd_pcm_hardware fsl_dma_hardware = {
         .info                   = SNDRV_PCM_INFO_INTERLEAVED |
                                   SNDRV_PCM_INFO_MMAP |
                                   SNDRV_PCM_INFO_MMAP_VALID |
-                                  SNDRV_PCM_INFO_JOINT_DUPLEX,
+                                  SNDRV_PCM_INFO_JOINT_DUPLEX |
+                                  SNDRV_PCM_INFO_PAUSE,
         .formats                = FSLDMA_PCM_FORMATS,
         .rates                  = FSLDMA_PCM_RATES,
         .rate_min               = 5512,