[PATCH 0/2] Add GPIO level-sensitive interrupt support
From: Alexandre Torgue <hidden>
Date: 2020-02-10 13:49:32
Also in:
linux-gpio, lkml
This series adds the possibility to handle gpio interrupts on level. GPIO hardware block is directly linked to EXTI block but EXTI handles external interrupts only on edge. To be able to handle GPIO interrupt on level a "hack" is done in gpio irq chip: parent interrupt (exti irq chip) is retriggered following interrupt type and gpio line value. In exti irq chip, retrigger ops function is added. Regards Alex Alexandre Torgue (2): irqchip/stm32: Add irq retrigger support pinctrl: stm32: Add level interrupt support to gpio irq chip drivers/irqchip/irq-stm32-exti.c | 14 +++++++- drivers/pinctrl/stm32/pinctrl-stm32.c | 47 +++++++++++++++++++++++++-- 2 files changed, 58 insertions(+), 3 deletions(-) -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel