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

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BugLink: https://bugs.launchpad.net/bugs/2106770

commit fa13ac6cdf9b6c358e7d77c29fb60145c7a87965 upstream.

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: a0701b6263 ("iio: gyro: add core driver for fxas21002c")
Signed-off-by: Carlos Song <carlos.song@nxp.com>
Signed-off-by: Frank 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: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Carlos Song
2024-11-16 10:29:45 -05:00
committed by Mehmet Basaran
parent 18d6c89e71
commit 0036e3f7f5
1 changed files with 9 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/iio/gyro/fxas21002c_core.c
+9 -2
View File
@@ -730,14 +730,21 @@ static irqreturn_t fxas21002c_trigger_handler(int irq, void *p)
int ret;
mutex_lock(&data->lock);
ret = regmap_bulk_read(data->regmap, FXAS21002C_REG_OUT_X_MSB,
data->buffer, CHANNEL_SCAN_MAX * sizeof(s16));
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_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);