[alsa-devel] [PATCH v6 3/3] ASoC: sun4i-i2s: Adjust LRCLK width

codekipper at gmail.com codekipper at gmail.com
Mon Aug 26 20:07:34 CEST 2019


From: Marcus Cooper <codekipper at gmail.com>

Some codecs such as i2s based HDMI audio and the Pine64 DAC require
a different amount of bit clocks per frame than what is calculated
by the sample width. Use the values obtained by the tdm slot bindings
to adjust the LRCLK width accordingly.

Signed-off-by: Marcus Cooper <codekipper at gmail.com>
---
 sound/soc/sunxi/sun4i-i2s.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 056a299c03fb..0965a97c96e5 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -455,7 +455,10 @@ static int sun8i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s,
 		break;
 
 	case SND_SOC_DAIFMT_I2S:
-		lrck_period = params_physical_width(params);
+		if (i2s->slot_width)
+			lrck_period = i2s->slot_width;
+		else
+			lrck_period = params_physical_width(params);
 		break;
 
 	default:
-- 
2.23.0



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