Why hw kpi replaced to sw gpio kpi?

OpenNuvoton / NUC970_Linux_Kernel

Linux Kernel Source Code for NUC970 Series Microprocessor

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Closed darkbrightness closed 5 years ago

darkbrightness commented 5 years ago

Hello! Could you please explain why did you replace hw kpi to gpio in keypad driver (https://github.com/OpenNuvoton/NUC970_Linux_Kernel/commit/0cf0ede7e90ca8448b4db3a934c7ef09d13ad97e)? Are there any problems with hw kpi?

yachen commented 5 years ago

Hi,

HW KPI cannot completely filter the noise on KPI interface, so replace with GPIO keypad.

Sincerely,

Yi-An Chen

darkbrightness commented 5 years ago

OK, thank you for answer!