Axel Lin 02a6794d57 gpio: gpio-ml-ioh: Use spinlock for register access protection ...

gpio_chip.can_sleep is 0, but current code uses mutex in ioh_gpio_set,
ioh_gpio_get and ioh_gpio_direction_input functions.
Thus those functions are not callable from interrupt context.
This patch converts mutex into spinlock.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2012-08-17 07:35:42 +02:00

15 KiB

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