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ASoC: Support 24.576MHz MCLKs in WM8915

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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>
This commit is contained in:
Mark Brown 2011-04-21 14:16:14 +01:00
parent f9f4b1c71d
commit c5f336cc00
1 changed files with 5 additions and 2 deletions
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7
sound/soc/codecs/wm8915.c
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@ -1831,6 +1831,7 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai,
struct snd_soc_codec *codec = dai->codec; struct snd_soc_codec *codec = dai->codec;
struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec); struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
int lfclk = 0; int lfclk = 0;
int ratediv = 0;
int src; int src;
int old; int old;
@ -1862,6 +1863,8 @@ static int wm8915_set_sysclk(struct snd_soc_dai *dai,
snd_soc_update_bits(codec, WM8915_AIF_RATE, snd_soc_update_bits(codec, WM8915_AIF_RATE,
WM8915_SYSCLK_RATE, 0); WM8915_SYSCLK_RATE, 0);
break; break;
case 24576000:
ratediv = WM8915_SYSCLK_DIV;
case 12288000: case 12288000:
snd_soc_update_bits(codec, WM8915_AIF_RATE, snd_soc_update_bits(codec, WM8915_AIF_RATE,
WM8915_SYSCLK_RATE, WM8915_SYSCLK_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, snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
WM8915_SYSCLK_SRC_MASK, WM8915_SYSCLK_SRC_MASK | WM8915_SYSCLK_DIV_MASK,
src << WM8915_SYSCLK_SRC_SHIFT); src << WM8915_SYSCLK_SRC_SHIFT | ratediv);
snd_soc_update_bits(codec, WM8915_CLOCKING_1, WM8915_LFCLK_ENA, lfclk); snd_soc_update_bits(codec, WM8915_CLOCKING_1, WM8915_LFCLK_ENA, lfclk);
snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1, snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
WM8915_SYSCLK_ENA, old); WM8915_SYSCLK_ENA, old);