The patch
ASoC: rt5651: Do not modify the LDO voltage control bits from set_bias_level()
has been applied to the asoc tree at
https://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 bba4e685dae8643469ca6fac22f10ca81554586e Mon Sep 17 00:00:00 2001
From: Hans de Goede hdegoede@redhat.com Date: Sun, 25 Feb 2018 11:46:50 +0100 Subject: [PATCH] ASoC: rt5651: Do not modify the LDO voltage control bits from set_bias_level()
The PWR_ANLG1 reg not only contains various power on/off bits, it also contains 2 bits which select if the LDO generates 1.0, 1.1 or 1.2V. Note there is a separate on/off bit for the LDO.
rt5651_set_bias_level(BIAS_OFF) used to unconditionally clear the entire register, when jack-detection support was introduced a special case for jack-detect was added which hard-codes a register value to keep the LDO voltage at 1.2 volt.
This commit removes the jack-detect special case, instead simply always leaving the LDO voltage control bits as is on BIAS_OFF.
Tested-by: Carlo Caione carlo@endlessm.com Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/rt5651.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c index c565607f95f7..c93539ee2200 100644 --- a/sound/soc/codecs/rt5651.c +++ b/sound/soc/codecs/rt5651.c @@ -1555,11 +1555,12 @@ static int rt5651_set_bias_level(struct snd_soc_component *component, snd_soc_component_write(component, RT5651_PWR_DIG2, 0x0000); snd_soc_component_write(component, RT5651_PWR_VOL, 0x0000); snd_soc_component_write(component, RT5651_PWR_MIXER, 0x0000); + /* Do not touch the LDO voltage select bits on bias-off */ + snd_soc_component_update_bits(component, RT5651_PWR_ANLG1, + ~RT5651_PWR_LDO_DVO_MASK, 0); if (rt5651->jd_src) { snd_soc_component_write(component, RT5651_PWR_ANLG2, 0x0204); - snd_soc_component_write(component, RT5651_PWR_ANLG1, 0x0002); } else { - snd_soc_component_write(component, RT5651_PWR_ANLG1, 0x0000); snd_soc_component_write(component, RT5651_PWR_ANLG2, 0x0000); } break;