From: Andreas Kemnade andreas@kemnade.info
[ Upstream commit a1649a5260631979c68e5b2012f60f90300e646f ]
During more massive generation of interrupts, the IRQ got stuck, and the subdevices did not see any new interrupts. That happens especially at wonky USB supply in combination with ADC reads. To fix that trigger the IRQ at level low instead of falling edge.
Fixes: 0c81604516af ("mfd: rn5t618: Add IRQ support") Signed-off-by: Andreas Kemnade andreas@kemnade.info Signed-off-by: Lee Jones lee.jones@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mfd/rn5t618.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c index 6ed04e6dbc78..384acb459427 100644 --- a/drivers/mfd/rn5t618.c +++ b/drivers/mfd/rn5t618.c @@ -107,7 +107,7 @@ static int rn5t618_irq_init(struct rn5t618 *rn5t618)
ret = devm_regmap_add_irq_chip(rn5t618->dev, rn5t618->regmap, rn5t618->irq, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, 0, irq_chip, &rn5t618->irq_data); if (ret) dev_err(rn5t618->dev, "Failed to register IRQ chip\n");