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iio: imu/mpu6050: support dual-edge IRQ

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Make mpu6050 usable on platforms which provide only any-edge interrupts.
One example of this kind of platform is AT91SAM9G45

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Michał Mirosław 2020-01-11 16:19:11 +01:00 committed by Jonathan Cameron
parent 2e4c0a5e25
commit 84961af78c
2 changed files with 2 additions and 5 deletions
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2
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
View File

@ -1220,7 +1220,7 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
irq_type = irqd_get_trigger_type(desc);
if (!irq_type)
irq_type = IRQF_TRIGGER_RISING;
if (irq_type == IRQF_TRIGGER_RISING)
if (irq_type & IRQF_TRIGGER_RISING) // rising or both-edge
st->irq_mask = INV_MPU6050_ACTIVE_HIGH;
else if (irq_type == IRQF_TRIGGER_FALLING)
st->irq_mask = INV_MPU6050_ACTIVE_LOW;

5
drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
View File

@ -185,11 +185,8 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
"failed to ack interrupt\n");
goto flush_fifo;
}
if (!(int_status & INV_MPU6050_BIT_RAW_DATA_RDY_INT)) {
dev_warn(regmap_get_device(st->map),
"spurious interrupt with status 0x%x\n", int_status);
if (!(int_status & INV_MPU6050_BIT_RAW_DATA_RDY_INT))
goto end_session;
}
if (!(st->chip_config.accl_fifo_enable |
st->chip_config.gyro_fifo_enable |