From cccb0c3e6a3feae761adbb34d74c1b9abb77ba4c Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Thu, 24 Apr 2014 19:55:39 +0200 Subject: [PATCH] pinctrl/at91: Fix lockup when IRQ on PIOC and PIOD occurs With commit 80cc3732 (pinctrl/at91: convert driver to use gpiolib irqchip) gpiochip_set_chained_irqchip is called for PIOC, PIOD and PIOE. The associated GPIO chip for the IRQ chip is overwritten each time, because they share the same hard IRQ line. Thus if an IRQ occurs on PIOC or PIOD, gpio_irq_handler will only check on PIOE (the assigned GPIO chip) where no event occured. Thus the IRQ will not be cleared, retriggering the ISR. Fix that (like done before) by only set the PIOC GPIO chip to the IRQ chip and walk the list in the irq handler. Signed-off-by: Alexander Stein Signed-off-by: Linus Walleij --- Reading git-format-patch failed