1 files changed, 3 insertions, 19 deletions

diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c
index 4be1a490f4fb..4d25f73274e8 100644
--- a/sound/soc/blackfin/bf5xx-ac97-pcm.c
+++ b/sound/soc/blackfin/bf5xx-ac97-pcm.c
@@ -193,8 +193,10 @@ static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
         switch (cmd) {
         case SNDRV_PCM_TRIGGER_START:
                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
                         bf5xx_mmap_copy(substream, runtime->period_size);
                         sport->tx_delay_pos = 0;
+#endif
                         sport_tx_start(sport);
                 } else
                         sport_rx_start(sport);
@@ -267,23 +269,6 @@ static int bf5xx_pcm_open(struct snd_pcm_substream *substream)
         return ret;
 }
 
-static int bf5xx_pcm_close(struct snd_pcm_substream *substream)
-{
-        struct snd_pcm_runtime *runtime = substream->runtime;
-        struct sport_device *sport = runtime->private_data;
-
-        pr_debug("%s enter\n", __func__);
-        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-                sport->once = 0;
-                memset(sport->tx_dma_buf, 0, runtime->buffer_size *
-                        sizeof(struct ac97_frame));
-        } else
-                memset(sport->rx_dma_buf, 0, runtime->buffer_size *
-                        sizeof(struct ac97_frame));
-
-        return 0;
-}
-
 #if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
 static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream,
         struct vm_area_struct *vma)
@@ -301,7 +286,7 @@ static	int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
                     void __user *buf, snd_pcm_uframes_t count)
 {
         struct snd_pcm_runtime *runtime = substream->runtime;
-
+        unsigned int chan_mask = ac97_chan_mask[runtime->channels - 1];
         pr_debug("%s copy pos:0x%lx count:0x%lx\n",
                         substream->stream ? "Capture" : "Playback", pos, count);
 
@@ -317,7 +302,6 @@ static	int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
 
 struct snd_pcm_ops bf5xx_pcm_ac97_ops = {
         .open           = bf5xx_pcm_open,
-        .close          = bf5xx_pcm_close,
         .ioctl          = snd_pcm_lib_ioctl,
         .hw_params      = bf5xx_pcm_hw_params,
         .hw_free        = bf5xx_pcm_hw_free,