ASoC: davinci-mcasp: Fix TDM slot rx/tx mask associations

Fixes the associations between the tx_mask and rx_mask and the associated
playback / capture streams during setting of the TDM slot. With this
patch in place it is now possible for example to only populate tx_mask
(leaving rx_mask as 0) for output-only codecs to control the TDM slot(s)
the McASP serial port uses for transmit. Before that, this scenario
would incorrectly rely on the rx_mask for this.

Signed-off-by: Andreas Dannenberg <[email protected]>
Reviewed-by: Jyri Sarha <[email protected]>
Acked-by: Peter Ujfalusi <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 4495a40a94680600ff324bd035098ff3d73f594b..caa0bebcd7f419aee08cb646a45db0694450412f 100644 (file)
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -681,8 +681,8 @@ static int davinci_mcasp_set_tdm_slot(struct snd_soc_dai *dai,
        }
 
        mcasp->tdm_slots = slots;
-       mcasp->tdm_mask[SNDRV_PCM_STREAM_PLAYBACK] = rx_mask;
-       mcasp->tdm_mask[SNDRV_PCM_STREAM_CAPTURE] = tx_mask;
+       mcasp->tdm_mask[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask;
+       mcasp->tdm_mask[SNDRV_PCM_STREAM_CAPTURE] = rx_mask;
        mcasp->slot_width = slot_width;
 
        return davinci_mcasp_set_ch_constraints(mcasp);