| From 91e056a1955e522c4efc6ef10c9e658104c8803c Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Sat, 15 May 2021 22:55:18 +0200 |
| Subject: mfd: rn5t618: Fix IRQ trigger by changing it to level mode |
| |
| 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 dc452df1f1bf..652a5e60067f 100644 |
| --- a/drivers/mfd/rn5t618.c |
| +++ b/drivers/mfd/rn5t618.c |
| @@ -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"); |
| -- |
| 2.30.2 |
| |
