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| author | Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com> | 2026-01-30 18:38:47 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2026-02-23 11:24:37 +0300 |
| commit | c9f3a593137d862d424130343e77d4b5260a4f5a (patch) | |
| tree | d15b2be2a1978dc1d5acf18e24f4a91eb9bded80 | |
| parent | 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f (diff) | |
| download | linux-c9f3a593137d862d424130343e77d4b5260a4f5a.tar.xz | |
iio: imu: inv_icm42600: fix odr switch to the same value
ODR switch is done in 2 steps when FIFO is on : change the ODR register
value and acknowledge change when reading the FIFO ODR change flag.
When we are switching to the same odr value, we end up waiting for a
FIFO ODR flag that is never happening.
Fix the issue by doing nothing and exiting properly when we are
switching to the same ODR value.
Fixes: ec74ae9fd37c ("iio: imu: inv_icm42600: add accurate timestamping")
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c | 2 | ||||
| -rw-r--r-- | drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c index 54760d8f92a2..0ab6eddf0543 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c @@ -651,6 +651,8 @@ static int inv_icm42600_accel_write_odr(struct iio_dev *indio_dev, return -EINVAL; conf.odr = inv_icm42600_accel_odr_conv[idx / 2]; + if (conf.odr == st->conf.accel.odr) + return 0; pm_runtime_get_sync(dev); mutex_lock(&st->lock); diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c index 7ef0a25ec74f..11339ddf1da3 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c @@ -358,6 +358,8 @@ static int inv_icm42600_gyro_write_odr(struct iio_dev *indio_dev, return -EINVAL; conf.odr = inv_icm42600_gyro_odr_conv[idx / 2]; + if (conf.odr == st->conf.gyro.odr) + return 0; pm_runtime_get_sync(dev); mutex_lock(&st->lock); |