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| author | Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> | 2017-08-30 14:50:39 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2017-10-09 23:01:45 +0300 |
| commit | e72a060151e5bb673af24993665e270fc4f674a7 (patch) | |
| tree | 4931e3d26c32eb9f554b91b9a10d4b50d1f24a51 /drivers/iio/gyro | |
| parent | c1375d671a352c525d76a8aba306667e0000d98a (diff) | |
| download | linux-e72a060151e5bb673af24993665e270fc4f674a7.tar.xz | |
iio: st_sensors: add register mask for status register
Introduce register mask for data-ready status register since
pressure sensors (e.g. LPS22HB) export just two channels
(BIT(0) and BIT(1)) and BIT(2) is marked reserved while in
st_sensors_new_samples_available() value read from status register
is masked using 0x7.
Moreover do not mask status register using active_scan_mask since
now status value is properly masked and if the result is not zero the
interrupt has to be consumed by the driver. This fix an issue on LPS25H
and LPS331AP where channel definition is swapped respect to status
register.
Furthermore that change allows to properly support new devices
(e.g LIS2DW12) that report just ZYXDA (data-ready) field in status register
to figure out if the interrupt has been generated by the device.
Fixes: 97865fe41322 (iio: st_sensors: verify interrupt event to status)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/gyro')
| -rw-r--r-- | drivers/iio/gyro/st_gyro_core.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c index 4cf85aa01dde..22c0c1732996 100644 --- a/drivers/iio/gyro/st_gyro_core.c +++ b/drivers/iio/gyro/st_gyro_core.c @@ -118,7 +118,10 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = { * drain settings, but only for INT1 and not * for the DRDY line on INT2. */ - .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, + .stat_drdy = { + .addr = ST_SENSORS_DEFAULT_STAT_ADDR, + .mask = 0x07, + }, }, .multi_read_bit = true, .bootime = 2, @@ -188,7 +191,10 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = { * drain settings, but only for INT1 and not * for the DRDY line on INT2. */ - .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, + .stat_drdy = { + .addr = ST_SENSORS_DEFAULT_STAT_ADDR, + .mask = 0x07, + }, }, .multi_read_bit = true, .bootime = 2, @@ -253,7 +259,10 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = { * drain settings, but only for INT1 and not * for the DRDY line on INT2. */ - .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, + .stat_drdy = { + .addr = ST_SENSORS_DEFAULT_STAT_ADDR, + .mask = 0x07, + }, }, .multi_read_bit = true, .bootime = 2, |