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Commit c278ac0e authored by Adriana Reus's avatar Adriana Reus Committed by Jonathan Cameron
Browse files

iio: imu: inv-mpu6050: Fix interrupt pin configuration 



The select/deselect_bypass duo writes the irq number into the interrupt
configuration register.
If there is a i2c slave device connected to the mpu (eg. a magnetometer)
then this can hinder interrupt delivery for the accelerometer and
gyroscope.
Set this register to the default configuration.

Signed-off-by: default avatarAdriana Reus <adriana.reus@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent f836c459

drivers/iio/imu/inv_mpu6050/inv_mpu_core.c

+2 −2
Original line number Diff line number Diff line
@@ -129,7 +129,7 @@ static int inv_mpu6050_select_bypass(struct i2c_adapter *adap, void *mux_priv, 
	if (!ret) {

		st->powerup_count++;

		ret = inv_mpu6050_write_reg_unlocked(st, st->reg->int_pin_cfg,

						     st->client->irq |

						     INV_MPU6050_INT_PIN_CFG |

						     INV_MPU6050_BIT_BYPASS_EN);

	}

write_error:
@@ -147,7 +147,7 @@ static int inv_mpu6050_deselect_bypass(struct i2c_adapter *adap, 
	mutex_lock(&indio_dev->mlock);

	/* It doesn't really mattter, if any of the calls fails */

	inv_mpu6050_write_reg_unlocked(st, st->reg->int_pin_cfg,

				       st->client->irq);

				       INV_MPU6050_INT_PIN_CFG);

	st->powerup_count--;

	if (!st->powerup_count)

		inv_mpu6050_write_reg_unlocked(st, st->reg->pwr_mgmt_1,

drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h

+1 −0
Original line number Diff line number Diff line
@@ -185,6 +185,7 @@ struct inv_mpu6050_state { 


#define INV_MPU6050_REG_INT_PIN_CFG	0x37

#define INV_MPU6050_BIT_BYPASS_EN	0x2

#define INV_MPU6050_INT_PIN_CFG		0



/* init parameters */

#define INV_MPU6050_INIT_FIFO_RATE           50