[PATCH v2 1/4] hwmon: (lm90) Don't override interrupt trigger type
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-06-18 21:12:40
Also in:
linux-hwmon, lkml
Subsystem:
hardware monitoring, lm90 hardware monitor driver, the rest · Maintainers:
Guenter Roeck, Jean Delvare, Linus Torvalds
The lm90 driver sets interrupt trigger type to level-low. This type is not suitable for sensors like NCT1008 that don't deassert interrupt line until temperature is back to normal, resulting in interrupt storm. The appropriate trigger type should come from OF device description and currently it's overridden by the driver's trigger type. Don't specify the trigger type in the driver code, letting interrupt core to use the device-specific trigger type. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/hwmon/lm90.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index ebbfd5f352c0..2e057fad05b4 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c@@ -1908,8 +1908,7 @@ static int lm90_probe(struct i2c_client *client) dev_dbg(dev, "IRQ: %d\n", client->irq); err = devm_request_threaded_irq(dev, client->irq, NULL, lm90_irq_thread, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "lm90", client); + IRQF_ONESHOT, "lm90", client); if (err < 0) { dev_err(dev, "cannot request IRQ %d\n", client->irq); return err;
--
2.30.2