Re: [PATCH v2] iio: imu/mpu6050: support dual-edge IRQ

[Jean-Baptiste Maneyrol <JManeyrol@invensense.com>]

Hello,

looks good for me.

Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>

Thanks,
JB



From: linux-iio-owner@vger.kernel.org <linux-iio-owner@vger.kernel.org> on behalf of Michał Mirosław <mirq-linux@rere.qmqm.pl>

Sent: Monday, January 6, 2020 12:17

To: Jonathan Cameron <jic23@kernel.org>; Hartmut Knaack <knaack.h@gmx.de>; Lars-Peter Clausen <lars@metafoo.de>; Peter Meerwald-Stadler <pmeerw@pmeerw.net>; Jean-Baptiste Maneyrol <JManeyrol@invensense.com>

Cc: linux-iio@vger.kernel.org <linux-iio@vger.kernel.org>; linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org>

Subject: [PATCH v2] iio: imu/mpu6050: support dual-edge IRQ

 


 CAUTION: This email originated from outside of the organization. Please make sure the sender is who they say they are and do not click links or open attachments unless you recognize the sender and know the content is safe.



Make mpu6050 usable on platforms which provide only any-edge interrupts.

This also covers shared interrupt case.



Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>



---

v2:

   just remove the dev_warn() message



Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

---

 drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 2 +-

 drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c | 5 +----

 2 files changed, 2 insertions(+), 5 deletions(-)



diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c

index 0686e41bb8a1..b3d138091f89 100644

--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c

+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c

@@ -1241,7 +1241,7 @@ 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;

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c

index 10d16ec5104b..a4dc2c4a3ca5 100644

--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c

+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c

@@ -183,11 +183,8 @@ 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 |

-- 

2.20.1