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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-04-21 15:16:14 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-04-26 12:48:26 +0200
commitc5f336cc003dfa071aaa7a01ed1c16232b227aa4 (patch)
tree11f4d0e24a4d98f713156ea77a1b44e1b187308f /sound/soc/codecs/wm8915.c
parentMerge branch 'for-2.6.39' into for-2.6.40 (diff)
downloadlinux-c5f336cc003dfa071aaa7a01ed1c16232b227aa4.tar.xz
linux-c5f336cc003dfa071aaa7a01ed1c16232b227aa4.zip
ASoC: Support 24.576MHz MCLKs in WM8915
We can safely divide these down to within the supported SYSCLK range. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
Diffstat (limited to 'sound/soc/codecs/wm8915.c')
-rw-r--r--sound/soc/codecs/wm8915.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/sound/soc/codecs/wm8915.c b/sound/soc/codecs/wm8915.c
index 083609418bf4..4a3c5cc77e55 100644
--- a/sound/soc/codecs/wm8915.c
+++ b/sound/soc/codecs/wm8915.c
@@ -1831,6 +1831,7 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai,
struct snd_soc_codec *codec = dai->codec;
struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
int lfclk = 0;
+ int ratediv = 0;
int src;
int old;
@@ -1862,6 +1863,8 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai,
snd_soc_update_bits(codec, WM8915_AIF_RATE,
WM8915_SYSCLK_RATE, 0);
break;
+ case 24576000:
+ ratediv = WM8915_SYSCLK_DIV;
case 12288000:
snd_soc_update_bits(codec, WM8915_AIF_RATE,
WM8915_SYSCLK_RATE, WM8915_SYSCLK_RATE);
@@ -1877,8 +1880,8 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai,
}
snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
- WM8915_SYSCLK_SRC_MASK,
- src << WM8915_SYSCLK_SRC_SHIFT);
+ WM8915_SYSCLK_SRC_MASK | WM8915_SYSCLK_DIV_MASK,
+ src << WM8915_SYSCLK_SRC_SHIFT | ratediv);
snd_soc_update_bits(codec, WM8915_CLOCKING_1, WM8915_LFCLK_ENA, lfclk);
snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
WM8915_SYSCLK_ENA, old);