gpio: dwapb: use a second irq chip
Right new have one irq chip running always in level mode. It would nicer to have two irq chips where one is handling level type interrupts and the other one is doing edge interrupts. So we can have at runtime two users where one is using edge and the other level. Acked-by: NAlan Tull <delicious.quinoa@gmail.com> Acked-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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