[alsa-devel] Applied "ASoC: rt5677: keep analog power register at SND_SOC_BIAS_OFF" to the asoc tree

[Mark Brown]

The patch

   ASoC: rt5677: keep analog power register at SND_SOC_BIAS_OFF

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4

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 dfe58f2011595e7512bde9dffbd0abfc3a736ab7 Mon Sep 17 00:00:00 2001
From: Ben Zhang <benzh at chromium.org>
Date: Fri, 6 Sep 2019 12:46:24 -0700
Subject: [PATCH] ASoC: rt5677: keep analog power register at SND_SOC_BIAS_OFF

Instead of clearing RT5677_PWR_ANLG2 (MX-64h) to 0 at SND_SOC_BIAS_OFF,
we only clear the RT5677_PWR_CORE bit which is set at SND_SOC_BIAS_PREPARE.
MICBIAS control bits are left unchanged.

This fixed the bug where if MICBIAS1 widget is forced on, MICBIAS
control bits will be cleared at suspend and never turned back on again,
since DAPM thinks the widget is always on.

Signed-off-by: Ben Zhang <benzh at chromium.org>
Signed-off-by: Curtis Malainey <cujomalainey at chromium.org>
Link: https://lore.kernel.org/r/20190906194636.217881-3-cujomalainey@chromium.org
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/codecs/rt5677.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index 5b6ca3ced13b..315a3d39bc09 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -4493,11 +4493,11 @@ static int rt5677_set_bias_level(struct snd_soc_component *component,
 	case SND_SOC_BIAS_OFF:
 		regmap_update_bits(rt5677->regmap, RT5677_DIG_MISC, 0x1, 0x0);
 		regmap_write(rt5677->regmap, RT5677_PWR_DIG1, 0x0000);
-		regmap_write(rt5677->regmap, RT5677_PWR_DIG2, 0x0000);
 		regmap_write(rt5677->regmap, RT5677_PWR_ANLG1,
 			2 << RT5677_LDO1_SEL_SFT |
 			2 << RT5677_LDO2_SEL_SFT);
-		regmap_write(rt5677->regmap, RT5677_PWR_ANLG2, 0x0000);
+		regmap_update_bits(rt5677->regmap, RT5677_PWR_ANLG2,
+			RT5677_PWR_CORE, 0);
 		regmap_update_bits(rt5677->regmap,
 			RT5677_PR_BASE + RT5677_BIAS_CUR4, 0x0f00, 0x0000);
 
-- 
2.20.1