ALSA: asoc: restrict sample rate and size in Freescale MPC8610 sound drivers

[lisovros/linux_canprio.git] / sound / soc / fsl / fsl_dma.c

diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index da2bc590286438fe7b000cea43e24baf4b6bb417..7ceea2bba1f597a6a873da3c81ca71932cfea5a8 100644 (file)
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -132,12 +132,17 @@ struct fsl_dma_private {
  * Since each link descriptor has a 32-bit byte count field, we set
  * period_bytes_max to the largest 32-bit number.  We also have no maximum
  * number of periods.
+ *
+ * Note that we specify SNDRV_PCM_INFO_JOINT_DUPLEX here, but only because a
+ * limitation in the SSI driver requires the sample rates for playback and
+ * capture to be the same.
  */
 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_MMAP_VALID |
+                                 SNDRV_PCM_INFO_JOINT_DUPLEX,
        .formats                = FSLDMA_PCM_FORMATS,
        .rates                  = FSLDMA_PCM_RATES,
        .rate_min               = 5512,