1 files changed, 9 insertions, 6 deletions

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index aeb3a6627d6a..8b85049daab0 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -636,11 +636,12 @@ static int davinci_config_channel_size(struct davinci_audio_dev *dev,
          * callback, take it into account here. That allows us to for example
          * send 32 bits per channel to the codec, while only 16 of them carry
          * audio payload.
-         * The clock ratio is given for a full period of data (both left and
-         * right channels), so it has to be divided by 2.
+         * The clock ratio is given for a full period of data (for I2S format
+         * both left and right channels), so it has to be divided by number of
+         * tdm-slots (for I2S - divided by 2).
          */
         if (dev->bclk_lrclk_ratio)
-                word_length = dev->bclk_lrclk_ratio / 2;
+                word_length = dev->bclk_lrclk_ratio / dev->tdm_slots;
 
         /* mapping of the XSSZ bit-field as described in the datasheet */
         fmt = (word_length >> 1) - 1;
@@ -834,17 +835,20 @@ 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 +893,6 @@ 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;