Commits
Bard Liao committed 7ff6319e7da
ASoC: rt5645: use polling to support HS button The IRQ pin will keep high when the headset button is pressed. And keep low when the headset button is released. So, we need irq trigger at both edges. However, some platform can't support it. Therefore, we polling the register to report the button release event once a button presse event is received. To support the headset button detection function for those can't support both edges trigger platforms, we also need to invert the polarity of jack detection irq since we need to keep the IRQ pin low in normal case. Signed-off-by: John Lin <john.lin@realtek.com> Signed-off-by: Bard Liao <bardliao@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>