Messages in this thread | | | From | Alexandre Torgue <> | Subject | [PATCH v3 0/2] Add GPIO level-sensitive interrupt support | Date | Wed, 19 Feb 2020 15:32:27 +0100 |
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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.
Changes since v2: - Fix issues reported by Marc: - do not retrigger uselessly a second time in exti irq retrigger callback - minor comments in pinctrl patch
Changes since v1: - Fix issue reported by Marek: return statment in "stm32_gpio_set_type" function.
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 | 45 +++++++++++++++++++++++++-- 2 files changed, 56 insertions(+), 3 deletions(-)
-- 2.17.1
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