[PATCH 0/5] ASoC: Intel/rt5640: Add support for HP Elite Pad 1000G2 jack-detect

[Hans de Goede <hdegoede@redhat.com>]

The HP Elitepad 1000 G2 tablet has 2 headset jacks:

1. on the dock which uses the output of the codecs built-in HP-amp +
the standard IN2 input which is always used with the headset-jack.

2. on the tablet itself, this uses the line-out of the codec + an external
HP-amp, which gets enabled by the ALC5642 codec's GPIO1 pin; and IN1 for
the headset-mic.

The codec's GPIO1 is also its only IRQ output pin, so this means that
the codec's IRQ cannot be used on this tablet. Instead the jack-detect
is connected directly to GPIOs on the main SoC. The dock has a helper
chip which also detects if a headset-mic is present or not, so there
are 2 GPIOs for the jack-detect status of the dock. The tablet jack
uses a single GPIO which indicates if a jack is present or not.

Differentiating between between headphones vs a headset on the tablet jack
is done by using the usual mic-bias over-current-detection mechanism.

Regards,

Hans


Hans de Goede (5):
  ASoC: rt5640: Move rt5640_disable_jack_detect() up in the rt5640.c
    file
  ASoC: rt5640: Delay requesting IRQ until the machine-drv calls
    set_jack
  ASoC: rt5640: Add optional hp_det_gpio parameter to
    rt5640_detect_headset()
  ASoC: rt5640: Add rt5640_set_ovcd_params() helper
  ASoC: Intel: bytcr_rt5640: Add support for HP Elite Pad 1000G2
    jack-detect

 sound/soc/codecs/rt5640.c             | 133 ++++++++++++-----------
 sound/soc/codecs/rt5640.h             |   6 ++
 sound/soc/intel/boards/bytcr_rt5640.c | 146 +++++++++++++++++++++++++-
 3 files changed, 225 insertions(+), 60 deletions(-)

-- 
2.31.1