Commit fa13ac6c authored by Carlos Song's avatar Carlos Song Committed by Jonathan Cameron
Browse files

iio: gyro: fxas21002c: Fix missing data update in trigger handler 



The fxas21002c_trigger_handler() may fail to acquire sample data because
the runtime PM enters the autosuspend state and sensor can not return
sample data in standby mode..

Resume the sensor before reading the sample data into the buffer within the
trigger handler. After the data is read, place the sensor back into the
autosuspend state.

Fixes: a0701b62 ("iio: gyro: add core driver for fxas21002c")
Signed-off-by: default avatarCarlos Song <carlos.song@nxp.com>
Signed-off-by: default avatarFrank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20241116152945.4006374-1-Frank.Li@nxp.com


Cc: <Stable@vger.kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent aaa90d07

drivers/iio/gyro/fxas21002c_core.c

+8 −1
Original line number Diff line number Diff line
@@ -730,14 +730,21 @@ static irqreturn_t fxas21002c_trigger_handler(int irq, void *p) 
	int ret;



	mutex_lock(&data->lock);

	ret = fxas21002c_pm_get(data);

	if (ret < 0)

		goto out_unlock;



	ret = regmap_bulk_read(data->regmap, FXAS21002C_REG_OUT_X_MSB,

			       data->buffer, CHANNEL_SCAN_MAX * sizeof(s16));

	if (ret < 0)

		goto out_unlock;

		goto out_pm_put;



	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,

					   data->timestamp);



out_pm_put:

	fxas21002c_pm_put(data);



out_unlock:

	mutex_unlock(&data->lock);