From c278ac0ecd198a3a1be5b2f1159ffec2e3107ecb Mon Sep 17 00:00:00 2001 From: Adriana Reus Date: Fri, 12 Feb 2016 13:44:42 +0200 Subject: [PATCH] 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: Adriana Reus Reviewed-by: Lucas De Marchi Signed-off-by: Jonathan Cameron --- drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 4 ++-- drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 0852b7f..1121f4e 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -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, diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index db0a4a2..455b99d 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -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 -- 2.7.4