diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2008-12-10 19:27:10 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2008-12-10 19:47:45 +0000 |
| commit | 3b1228abc93f7ab0aa28c46341d6a0f7e2cade70 (patch) | |
| tree | c31fa3b9a9e25b998d2c07aad238588d40795e9b /sound/soc/codecs/wm8903.c | |
| parent | d58d5d5567ea9483346f57c83a94ce05992cd47c (diff) | |
| download | blackbird-obmc-linux-3b1228abc93f7ab0aa28c46341d6a0f7e2cade70.tar.gz blackbird-obmc-linux-3b1228abc93f7ab0aa28c46341d6a0f7e2cade70.zip | |
ASoC: Stop WM8903 SYSCLK when suspending
This will save some additional power.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/wm8903.c')
| -rw-r--r-- | sound/soc/codecs/wm8903.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c index c80968fe326e..bde74546db4a 100644 --- a/sound/soc/codecs/wm8903.c +++ b/sound/soc/codecs/wm8903.c @@ -997,6 +997,9 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_STANDBY: if (codec->bias_level == SND_SOC_BIAS_OFF) { + wm8903_write(codec, WM8903_CLOCK_RATES_2, + WM8903_CLK_SYS_ENA); + wm8903_run_sequence(codec, 0); wm8903_sync_reg_cache(codec, codec->reg_cache); @@ -1027,6 +1030,9 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_OFF: wm8903_run_sequence(codec, 32); + reg = wm8903_read(codec, WM8903_CLOCK_RATES_2); + reg &= ~WM8903_CLK_SYS_ENA; + wm8903_write(codec, WM8903_CLOCK_RATES_2, reg); break; } @@ -1619,9 +1625,6 @@ static int wm8903_i2c_probe(struct i2c_client *i2c, wm8903_reset(codec); - /* SYSCLK is required for pretty much anything */ - wm8903_write(codec, WM8903_CLOCK_RATES_2, WM8903_CLK_SYS_ENA); - /* power on device */ wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
