[ARM] 5324/2: ep93xx: support gpio interrupt debounce

Browse source

Add debounce support for ep93xx gpio interrupts.

On the EP93xx, GPIO ports A, B, and F can be used to generate
interrupts. For each port, if interrupts are enabled, it is
possible to debouce the input signal. Debouncing is implemented
by passing the input signal through a 2-bit shift register clocked
by a 128Hz clock.

This patch adds a platform specific way to enable the debouce
feature for these input ports.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

...

This commit is contained in:

Hartley Sweeten 2008-10-28 17:55:30 +01:00 • committed by Russell King

parent d52a26a956

commit 799a0600ac

2 changed files with 20 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

18

arch/arm/mach-ep93xx/core.c

View file

2

arch/arm/mach-ep93xx/include/mach/gpio.h

View file