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pinctrl: mediatek: emulate GPIO interrupt on both-edges

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MTK EINT does not support generating interrupt on both edges.
Emulate this by changing edge polarity while enable irq,
set types and interrupt handling. This follows an example of
drivers/gpio/gpio-mxc.c.

Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Yingjoe Chen 2015-01-27 14:15:26 +08:00 • committed by Linus Walleij
commit 3221f40b76
4 changed files with 83 additions and 3 deletions
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