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iio: imu: st_lsm6dsx: specify slave odr in slv_odr 

Introduce slv_odr in ext_info data structure in order to distinguish
between sensor hub trigger (accel sensor) odr and i2c slave odr and
properly compute samples in FIFO pattern

Fixes: e485e2a2cf ("iio: imu: st_lsm6dsx: enable sensor-hub support for lsm6dsm")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lorenzo Bianconi 2020-03-13 18:54:42 +01:00 committed by Jonathan Cameron
parent 7762902c89
commit 76551a3c3d
2 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
View File

@ -357,6 +357,7 @@ struct st_lsm6dsx_sensor {
struct {
const struct st_lsm6dsx_ext_dev_settings *settings;
u32 slv_odr;
u8 addr;
} ext_info;
};

29
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
View File

@ -421,7 +421,8 @@ int st_lsm6dsx_shub_set_enable(struct st_lsm6dsx_sensor *sensor, bool enable)
settings = sensor->ext_info.settings;
if (enable) {
err = st_lsm6dsx_shub_set_odr(sensor, sensor->odr);
err = st_lsm6dsx_shub_set_odr(sensor,
sensor->ext_info.slv_odr);
if (err < 0)
return err;
} else {
@ -459,7 +460,7 @@ st_lsm6dsx_shub_read_oneshot(struct st_lsm6dsx_sensor *sensor,
if (err < 0)
return err;
delay = 1000000000 / sensor->odr;
delay = 1000000000 / sensor->ext_info.slv_odr;
usleep_range(delay, 2 * delay);
len = min_t(int, sizeof(data), ch->scan_type.realbits >> 3);
@ -500,8 +501,8 @@ st_lsm6dsx_shub_read_raw(struct iio_dev *iio_dev,
iio_device_release_direct_mode(iio_dev);
break;
case IIO_CHAN_INFO_SAMP_FREQ:
*val = sensor->odr / 1000;
*val2 = (sensor->odr % 1000) * 1000;
*val = sensor->ext_info.slv_odr / 1000;
*val2 = (sensor->ext_info.slv_odr % 1000) * 1000;
ret = IIO_VAL_INT_PLUS_MICRO;
break;
case IIO_CHAN_INFO_SCALE:
@ -535,8 +536,20 @@ st_lsm6dsx_shub_write_raw(struct iio_dev *iio_dev,
val = val * 1000 + val2 / 1000;
err = st_lsm6dsx_shub_get_odr_val(sensor, val, &data);
if (!err)
sensor->odr = val;
if (!err) {
struct st_lsm6dsx_hw *hw = sensor->hw;
struct st_lsm6dsx_sensor *ref_sensor;
u8 odr_val;
int odr;
ref_sensor = iio_priv(hw->iio_devs[ST_LSM6DSX_ID_ACC]);
odr = st_lsm6dsx_check_odr(ref_sensor, val, &odr_val);
if (odr < 0)
return odr;
sensor->ext_info.slv_odr = val;
sensor->odr = odr;
}
break;
}
default:
@ -613,6 +626,7 @@ st_lsm6dsx_shub_alloc_iiodev(struct st_lsm6dsx_hw *hw,
const struct st_lsm6dsx_ext_dev_settings *info,
u8 i2c_addr, const char *name)
{
enum st_lsm6dsx_sensor_id ref_id = ST_LSM6DSX_ID_ACC;
struct iio_chan_spec *ext_channels;
struct st_lsm6dsx_sensor *sensor;
struct iio_dev *iio_dev;
@ -628,7 +642,8 @@ st_lsm6dsx_shub_alloc_iiodev(struct st_lsm6dsx_hw *hw,
sensor = iio_priv(iio_dev);
sensor->id = id;
sensor->hw = hw;
sensor->odr = info->odr_table.odr_avl[0].milli_hz;
sensor->odr = hw->settings->odr_table[ref_id].odr_avl[0].milli_hz;
sensor->ext_info.slv_odr = info->odr_table.odr_avl[0].milli_hz;
sensor->gain = info->fs_table.fs_avl[0].gain;
sensor->ext_info.settings = info;
sensor->ext_info.addr = i2c_addr;