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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 <dannenberg@ti.com>
Reviewed-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andreas Dannenberg 2015-11-09 12:19:19 -06:00 committed by Mark Brown
parent bb9a13a020
commit 1bdd593247
1 changed files with 2 additions and 2 deletions
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4
sound/soc/davinci/davinci-mcasp.c
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@ -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);