ASoC: davinci-pcm, davinci-mcasp: Clean up active_serializers

As pointed of by Vaibhav, commit message: "ASoC: davinci-mcasp: Add support for multichannel playback"
number of active serializers can be hidden into fifo_level variable, which is set in davimci-mcasp.

Signed-off-by: Michal Bachraty <michal.bachraty@streamunlimited.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index aeb3a6627d6a..59143373afc6 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -834,17 +834,20 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
         int word_length;
         u8 fifo_level;
         u8 slots = dev->tdm_slots;
+        u8 active_serializers;
         int channels;
         struct snd_interval *pcm_channels = hw_param_interval(params,
                                         SNDRV_PCM_HW_PARAM_CHANNELS);
         channels = pcm_channels->min;
 
+        active_serializers = (channels + slots - 1) / slots;
+
         if (davinci_hw_common_param(dev, substream->stream, channels) == -EINVAL)
                 return -EINVAL;
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                fifo_level = dev->txnumevt;
+                fifo_level = dev->txnumevt * active_serializers;
         else
-                fifo_level = dev->rxnumevt;
+                fifo_level = dev->rxnumevt * active_serializers;
 
         if (dev->op_mode == DAVINCI_MCASP_DIT_MODE)
                 davinci_hw_dit_param(dev);
@@ -889,7 +892,6 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
                 dma_params->acnt = dma_params->data_type;
 
         dma_params->fifo_level = fifo_level;
-        dma_params->active_serializers = (channels + slots - 1) / slots;
         davinci_config_channel_size(dev, word_length);
 
         return 0;