From: Paul Handrigan <Paul.Handrigan@cirrus.com>
Date: Tue, 5 Mar 2013 19:12:56 +0000 (-0600)
Subject: ASoC: cs42l73: If Internal MCLK is >= 6.4MHz, then set SCLK to 64*Fs.
X-Git-Tag: next-20130312~48^2~8^2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cadf2120ff756789a3adaac07c5b85a09649c66e;p=karo-tx-linux.git

ASoC: cs42l73: If Internal MCLK is >= 6.4MHz, then set SCLK to 64*Fs.

Signed-off-by: Paul Handrigan <Paul.Handrigan@cirrus.com>
Acked-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c
index 6361dab48bd1..3b20c86cdb01 100644
--- a/sound/soc/codecs/cs42l73.c
+++ b/sound/soc/codecs/cs42l73.c
@@ -1180,7 +1180,11 @@ static int cs42l73_pcm_hw_params(struct snd_pcm_substream *substream,
 		priv->config[id].mmcc &= 0xC0;
 		priv->config[id].mmcc |= cs42l73_mclk_coeffs[mclk_coeff].mmcc;
 		priv->config[id].spc &= 0xFC;
-		priv->config[id].spc |= MCK_SCLK_MCLK;
+		/* Use SCLK=64*Fs if internal MCLK >= 6.4MHz */
+		if (priv->mclk >= 6400000)
+			priv->config[id].spc |= MCK_SCLK_64FS;
+		else
+			priv->config[id].spc |= MCK_SCLK_MCLK;
 	} else {
 		/* CS42L73 Slave */
 		priv->config[id].spc &= 0xFC;