The patch
ASoC: rt5645: improve headphone pop when system resumes from S3
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 0150e8c053e585dbd3f8141fbb942015532527ca Mon Sep 17 00:00:00 2001
From: John Lin john.lin@realtek.com Date: Thu, 25 Feb 2016 13:18:26 +0800 Subject: [PATCH] ASoC: rt5645: improve headphone pop when system resumes from S3
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 --- sound/soc/codecs/rt5645.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index c61d38b585fb..c3dc371a7ef3 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -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: