On Thu, 2010-10-07 at 08:54 +0300, Jarkko Nikula wrote:
On Wed, 6 Oct 2010 16:05:01 -0700 Mark Brown broonie@opensource.wolfsonmicro.com wrote:
Rather than block the workqueue by sleeping to do the debounce use delayed work to implement the debounce time. This should also mean that we extend the debounce time on each new bounce, potentially allowing shorter debounce times for clean insertions.
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com
This is completely untested as I do not have any systems to hand which can make use of this functionality but I believe it should work - I've CCed a couple of the OMAP people since they seem to be the main users.
include/sound/soc.h | 2 +- sound/soc/soc-jack.c | 11 +++++------ 2 files changed, 6 insertions(+), 7 deletions(-)
Works fine on N900 when testing with hexdump /dev/input/by-path/platform-soc-audio-event
I have a vague memory that user space and actual state can get soon out of sync if using delay based debouncing only and doing some insane plug in/out cycle. So this is a step to right direction for implementing more advanced debouncing.
Acked-by: Jarkko Nikula jhnikula@gmail.com
Acked-by: Liam Girdwood lrg@slimlogic.co.uk