iio: imu: inv_mpu6050: Fix probe() failure on older ACPI based machines

Commit 5ec6486daa98 ("iio:imu: inv_mpu6050: support more interrupt types") causes inv_mpu_core_probe() to fail if the IRQ does not have a trigger-type setup. This happens on machines where the mpu6050 is enumerated through ACPI and an older Interrupt type ACPI resource is used for the interrupt, rather then a GpioInt type type, causing the mpu6050 driver to no longer work there. This happens on e.g. the Asus T100TA. This commits makes the mpu6050 fallback to the old IRQF_TRIGGER_RISING default if the irq-type is not setup, fixing this.

Hans de Goede committed 8 years ago

Commit 2a221c01 parent 92397a61 file · +2 −0Browse files

Unified · Split

drivers/iio/imu/inv_mpu6050/inv_mpu_core.c+2−0

@@ -959,6 +959,8 @@ int inv_mpu_core_probe(struct regmap regmap, int irq, const char name, · 958 unmodified lines
959	959	}
960	960
961	961	irq_type = irqd_get_trigger_type(desc);
	962	+ if (!irq_type)
	963	+ irq_type = IRQF_TRIGGER_RISING;
962	964	if (irq_type == IRQF_TRIGGER_RISING)
963	965	st->irq_mask = INV_MPU6050_ACTIVE_HIGH;
964	966	else if (irq_type == IRQF_TRIGGER_FALLING)