[PATCH 3.19.y-ckt 34/92] ASoC: rt5677: fixed wrong DMIC ref clock

[Kamal Mostafa]

3.19.8-ckt1 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bard Liao <bardliao at realtek.com>

commit 60a8d62b8497c23eb3d48149af7e55dac2dd83a2 upstream.

DMIC clock source is not from codec system clock directly. it is
generated from the division of system clock. And it should be 256 *
sample rate of AIF1.

Signed-off-by: Bard Liao <bardliao at realtek.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 sound/soc/codecs/rt5677.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index 9ce6b65..1038d2d 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -904,7 +904,7 @@ static int set_dmic_clk(struct snd_soc_dapm_widget *w,
 {
 	struct snd_soc_codec *codec = w->codec;
 	struct rt5677_priv *rt5677 = snd_soc_codec_get_drvdata(codec);
-	int idx = rl6231_calc_dmic_clk(rt5677->sysclk);
+	int idx = rl6231_calc_dmic_clk(rt5677->lrck[RT5677_AIF1] << 8);
 
 	if (idx < 0)
 		dev_err(codec->dev, "Failed to set DMIC clock\n");
-- 
1.9.1