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iio: imu: inv_icm42600: change invalid data error to -EBUSY

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Temperature sensor returns the temperature of the mechanical parts
of the chip. If both accel and gyro are off, the temperature sensor is
also automatically turned off and returns invalid data.

In this case, returning -EBUSY error code is better then -EINVAL and
indicates userspace that it needs to retry reading temperature in
another context.

Fixes: bc3eb0207f ("iio: imu: inv_icm42600: add temperature sensor support")
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Cc: stable@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Sean Nyekjaer <sean@geanix.com>
Link: https://patch.msgid.link/20250808-inv-icm42600-change-temperature-error-code-v1-1-986fbf63b77d@tdk.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jean-Baptiste Maneyrol 2025-08-08 09:40:10 +02:00 committed by Jonathan Cameron
parent 197e299aae
commit dfdc31e7cc
1 changed files with 5 additions and 1 deletions
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6
drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c
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@ -32,8 +32,12 @@ static int inv_icm42600_temp_read(struct inv_icm42600_state *st, s16 *temp)
goto exit;
*temp = (s16)be16_to_cpup(raw);
/*
* Temperature data is invalid if both accel and gyro are off.
* Return -EBUSY in this case.
*/
if (*temp == INV_ICM42600_DATA_INVALID)
ret = -EINVAL;
ret = -EBUSY;
exit:
mutex_unlock(&st->lock);