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mfd: rn5t618: Fix IRQ trigger by changing it to level mode

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[ Upstream commit a1649a5260 ]

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: 0c81604516 ("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>
This commit is contained in:
Andreas Kemnade 2021-05-15 22:55:18 +02:00 • committed by Greg Kroah-Hartman
commit d22bef4101
1 changed files with 1 additions and 1 deletions
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2
drivers/mfd/rn5t618.c
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@ -104,7 +104,7 @@ 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");