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Commit 5edf673d authored by hongkun.cao's avatar hongkun.cao Committed by Linus Walleij
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pinctrl: mediatek: fix dual-edge code defect 



When a dual-edge irq is triggered, an incorrect irq will be reported on
condition that the external signal is not stable and this incorrect irq
has been registered.
Correct the register offset.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarHongkun Cao <hongkun.cao@mediatek.com>
Reviewed-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 9feeed94

drivers/pinctrl/mediatek/pinctrl-mtk-common.c

+3 −2
Original line number Diff line number Diff line
@@ -1256,9 +1256,10 @@ static void mtk_eint_irq_handler(struct irq_desc *desc) 
	const struct mtk_desc_pin *pin;



	chained_irq_enter(chip, desc);

	for (eint_num = 0; eint_num < pctl->devdata->ap_num; eint_num += 32) {

	for (eint_num = 0;

	     eint_num < pctl->devdata->ap_num;

	     eint_num += 32, reg += 4) {

		status = readl(reg);

		reg += 4;

		while (status) {

			offset = __ffs(status);

			index = eint_num + offset;