From e46199ece4e0db886f90abe11d91b04601fd0300 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 7 Oct 2011 21:52:00 +0800 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- sound/soc/codecs/wm8971.c | 15 +++------------ 1 file 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 */