CVS commit: src/sys/arch/arm/sunxi

["Tobias Nygren" <tnn%netbsd.org@localhost>]

Module Name:    src
Committed By:   tnn
Date:           Tue Jun  4 19:49:43 UTC 2019

Modified Files:
        src/sys/arch/arm/sunxi: sunxi_gpio.c

Log Message:
sunxi_gpio: set interrupt debounce filter to HOSC instead of LOSC

This improves gpio ISR response time from ~1.5ms to ~5us.

The hardware debounce filter is of limited value anyway because if we
at some point want to support interrupts from mechanical switches in
gpiobutton(4) it will still need a software debounce filter to be portable
to devices without hardware debouncing capability.


To generate a diff of this commit:
cvs rdiff -u -r1.25 -r1.26 src/sys/arch/arm/sunxi/sunxi_gpio.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.