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ASoC: rt5645: improve headphone pop when system resumes from S3

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When playing audio through headphone, headphone makes pop noise if system
resumes from S3 to S0. We modify the sequence of writing register for
avoiding pop sound.

Signed-off-by: John Lin <john.lin@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
John Lin
2016-02-26 11:05:23 +09:00
committed by Mark Brown
parent 92e963f50f
commit 0150e8c053
1 changed files with 9 additions and 4 deletions
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sound/soc/codecs/rt5645.c
+9 -4
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@@ -3029,13 +3029,18 @@ static int rt5645_set_bias_level(struct snd_soc_codec *codec,
RT5645_PWR_BG | RT5645_PWR_VREF2,
RT5645_PWR_VREF1 | RT5645_PWR_MB |
RT5645_PWR_BG | RT5645_PWR_VREF2);
mdelay(10);
snd_soc_update_bits(codec, RT5645_PWR_ANLG1,
RT5645_PWR_FV1 | RT5645_PWR_FV2,
RT5645_PWR_FV1 | RT5645_PWR_FV2);
if (rt5645->en_button_func &&
snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF)
queue_delayed_work(system_power_efficient_wq,
&rt5645->jack_detect_work, msecs_to_jiffies(0));
if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
snd_soc_write(codec, RT5645_DEPOP_M2, 0x1140);
msleep(40);
if (rt5645->en_button_func)
queue_delayed_work(system_power_efficient_wq,
&rt5645->jack_detect_work,
msecs_to_jiffies(0));
}
break;
case SND_SOC_BIAS_OFF: