[alsa-devel] [PATCH v2 3/6] ASoC: atmel_ssc_dai: implement left-justified data mode

Michał Mirosław mirq-linux at rere.qmqm.pl
Sat Aug 24 22:26:54 CEST 2019


Enable support for left-justified data mode for SSC-codec link.

Signed-off-by: Michał Mirosław <mirq-linux at rere.qmqm.pl>

---
 v2: rebased

---
 sound/soc/atmel/atmel_ssc_dai.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index 7dc6ec9b8c7a..48e9eef34c0f 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -564,6 +564,15 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
 
 	switch (ssc_p->daifmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 
+	case SND_SOC_DAIFMT_LEFT_J:
+		fs_osync = SSC_FSOS_POSITIVE;
+		fs_edge = SSC_START_RISING_RF;
+
+		rcmr =	  SSC_BF(RCMR_STTDLY, 0);
+		tcmr =	  SSC_BF(TCMR_STTDLY, 0);
+
+		break;
+
 	case SND_SOC_DAIFMT_I2S:
 		fs_osync = SSC_FSOS_NEGATIVE;
 		fs_edge = SSC_START_FALLING_RF;
-- 
2.20.1



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