[alsa-devel] [PATCH] ASoC: pcm3168a: Allow all channels in case of parallel DIN/DOUT setup

[Peter Ujfalusi]

If multi DIN/DOUT mode is selected (tdm_slots == 2) then configure the
channel constraint to allow all channels.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
---
 sound/soc/codecs/pcm3168a.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/codecs/pcm3168a.c b/sound/soc/codecs/pcm3168a.c
index 5d59ce254821..e84a1509fe65 100644
--- a/sound/soc/codecs/pcm3168a.c
+++ b/sound/soc/codecs/pcm3168a.c
@@ -599,6 +599,10 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream,
 				     SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
 				     sample_min, 32);
 
+	/* Allow all channels in multi DIN/DOUT mode */
+	if (pcm3168a->tdm_slots == 2)
+		channel_max = channel_maxs[tx];
+
 	snd_pcm_hw_constraint_minmax(substream->runtime,
 				     SNDRV_PCM_HW_PARAM_CHANNELS,
 				     2, channel_max);
-- 
Peter

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki