pinctrl: samsung: Protect bank registers with a spinlock

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Certain pin control registers can be accessed from different contexts,
i.e. pinctrl, gpio and irq functions. This makes the locking provided by
pin control core insufficient.

This patch adds necessary locking using a per bank spinlock as it was
done in the old Samsung GPIO driver.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Tomasz Figa 2013-03-18 22:31:50 +01:00 • committed by Linus Walleij

parent 6a7b3e9704

commit 198469504a

3 changed files with 37 additions and 0 deletions

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11

drivers/pinctrl/pinctrl-exynos.c

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24

drivers/pinctrl/pinctrl-samsung.c

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2

drivers/pinctrl/pinctrl-samsung.h

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