[PATCH 1/7] ASoC: sun4i-i2s: Adjust LRCLK width

[Clément Péron]

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>
Signed-off-by: Clément Péron <peron.clem at gmail.com>
---
 sound/soc/sunxi/sun4i-i2s.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index d0a8d5810c0a..4198a5410bf9 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -455,6 +455,9 @@ static int sun8i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s,
 		return -EINVAL;
 	}
 
+	if (i2s->slot_width)
+		lrck_period = i2s->slot_width;
+
 	regmap_update_bits(i2s->regmap, SUN4I_I2S_FMT0_REG,
 			   SUN8I_I2S_FMT0_LRCK_PERIOD_MASK,
 			   SUN8I_I2S_FMT0_LRCK_PERIOD(lrck_period));
-- 
2.20.1