This series adds support for the MBHC (Multi-Button Headset Control) of the PM8916's analog codec. This IP is capable to identify up to five buttons on a headset, but for now only the jack detection is supported. A complete implementation exists in the Android kernel, but it's quite complex and I'd rather go step by step.
First patch fixes a define that is squatting a bit used by the MBHC. Second patch is the actual implementation of the jack detection, and third patch plugs the jack detection in the sound card driver.
Damien Riegel (3): ASoC: codecs: msm8916-analog: fix DIG_CLK_CTL_RXD3_CLK_EN define ASoC: codecs: msm8916-analog: support jack detection ASoC: qcom: apq8016-sbc: enable jack detection
sound/soc/codecs/msm8916-wcd-analog.c | 105 +++++++++++++++++++++++++++++++++- sound/soc/codecs/msm8916-wcd-analog.h | 18 ++++++ sound/soc/qcom/apq8016_sbc.c | 16 ++++++ 3 files changed, 138 insertions(+), 1 deletion(-) create mode 100644 sound/soc/codecs/msm8916-wcd-analog.h