According to comments in wm8903, driver lacks DMIC support. My wm8903 based devices (ASUS TF300T and TF101) require DMIC support for correct internal mic work. I have used downstream sources to implement DMIC input support for this driver and I can confirm that internal mic now works as intended. Svyatoslav Ryhel (1): ASoC: wm8903: implement DMIC support sound/soc/codecs/wm8903.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- 2.37.2