[PATCH] Fix freeze in lm8333 i2c keyboard driver

From: Tomas Mudrunka
Date: Tue Apr 25 2023 - 09:01:56 EST


LM8333 uses gpio interrupt line which is active-low.
When interrupt is set to FALLING edge and button is pressed
before driver loads, driver will miss the edge and never respond.
To fix this we handle ONESHOT LOW interrupt rather than edge.

Signed-off-by: Tomas Mudrunka <tomas.mudrunka@xxxxxxxxx>
---
drivers/input/keyboard/lm8333.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/lm8333.c b/drivers/input/keyboard/lm8333.c
index 7457c3220..c5770ebb2 100644
--- a/drivers/input/keyboard/lm8333.c
+++ b/drivers/input/keyboard/lm8333.c
@@ -179,7 +179,7 @@ static int lm8333_probe(struct i2c_client *client)
}

err = request_threaded_irq(client->irq, NULL, lm8333_irq_thread,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"lm8333", lm8333);
if (err)
goto free_mem;
--
2.40.0