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| author | Axel Lin <axel.lin@gmail.com> | 2011-10-07 21:52:00 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-10-10 10:29:58 +0100 |
| commit | e46199ece4e0db886f90abe11d91b04601fd0300 (patch) | |
| tree | 1c3dba4fb4387879ab0623f37f46d396cf47641d /sound/soc/codecs/wm8971.c | |
| parent | bc45df2dd98cfd550f674c494965f0015d5f923e (diff) | |
| download | linux-e46199ece4e0db886f90abe11d91b04601fd0300.tar.gz linux-e46199ece4e0db886f90abe11d91b04601fd0300.tar.bz2 linux-e46199ece4e0db886f90abe11d91b04601fd0300.zip | |
ASoC: wm8971: Convert to snd_soc_cache_sync
Convert to snd_soc_cache_sync for sync reg_cache with the hardware.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/wm8971.c')
| -rw-r--r-- | sound/soc/codecs/wm8971.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c index 08ea6f832365..b444b297d0b2 100644 --- a/sound/soc/codecs/wm8971.c +++ b/sound/soc/codecs/wm8971.c @@ -546,6 +546,9 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: + if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) + snd_soc_cache_sync(codec); + /* mute dac and set vmid to 500k, enable VREF */ snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); break; @@ -605,20 +608,8 @@ static int wm8971_suspend(struct snd_soc_codec *codec, pm_message_t state) static int wm8971_resume(struct snd_soc_codec *codec) { - int i; - u8 data[2]; - u16 *cache = codec->reg_cache; u16 reg; - /* Sync reg_cache with the hardware */ - for (i = 0; i < ARRAY_SIZE(wm8971_reg); i++) { - if (i == WM8971_RESET) - continue; - data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); - data[1] = cache[i] & 0x00ff; - codec->hw_write(codec->control_data, data, 2); - } - wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY); /* charge wm8971 caps */ |