gpio: Timestamp events in hardirq handler

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Add a hardirq handler to the GPIO userspace event loop, making
sure to pick up the timestamp there, as close as possible in time
relative to the actual event causing the interrupt.

Tested with a simple pushbutton GPIO on ux500 and seems to work
fine.

Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Reported-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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This commit is contained in:

Linus Walleij 2017-11-30 10:23:27 +01:00

parent 24bd3efc9d

commit d58f2bf261

1 changed files with 19 additions and 2 deletions

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21

drivers/gpio/gpiolib.c

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