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authorLorenzo Bianconi <lorenzo@kernel.org>2020-03-13 18:54:42 +0100
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2020-03-28 16:35:03 +0000
commit76551a3c3df151750a842b003c6899e9c62e0fd2 (patch)
treef6218aefd462726c9845c16d03604d9ca383da42 /drivers/iio
parent7762902c89c4c78d32ec562f1ada44d02039104b (diff)
downloadlinux-76551a3c3df151750a842b003c6899e9c62e0fd2.tar.bz2
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: e485e2a2cfd6 ("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>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h1
-rw-r--r--drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c29
2 files changed, 23 insertions, 7 deletions
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index e9e756b1e92f..41cb20cb3809 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -357,6 +357,7 @@ struct st_lsm6dsx_sensor {
struct {
const struct st_lsm6dsx_ext_dev_settings *settings;
+ u32 slv_odr;
u8 addr;
} ext_info;
};
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
index 95ddd19d1aa7..64ef07a30726 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
@@ -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;