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| author |   Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> | 2017-10-02 18:37:38 +0200 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2017-10-09 20:50:57 +0100 |
| commit | ff81a933c153fc3159b1e27bdd058f905e0359d5 (patch) | |
| tree | a75427259a180c92c1c95fe85db1fea143d3a371 /drivers/iio | |
| parent | iio: imu: st_lsm6dsx: convert max_fifo_size in FIFO sample size (diff) | |
| download | linux-dev-ff81a933c153fc3159b1e27bdd058f905e0359d5.tar.xz linux-dev-ff81a933c153fc3159b1e27bdd058f905e0359d5.zip | |
iio: imu: st_lsm6dsx: split fifo mode and fifo odr configuration
Separate fifo mode and max fifo sample rate configuration.
That change will be necessary to reuse st_lsm6dsx_set_fifo_mode()
routine and to support more devices in st_lsm6dsx driver
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c index e2737dc71b67..26fb970aed15 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c @@ -139,23 +139,10 @@ static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw) int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw, enum st_lsm6dsx_fifo_mode fifo_mode) { - u8 data; int err; - switch (fifo_mode) { - case ST_LSM6DSX_FIFO_BYPASS: - data = fifo_mode; - break; - case ST_LSM6DSX_FIFO_CONT: - data = (ST_LSM6DSX_MAX_FIFO_ODR_VAL << - __ffs(ST_LSM6DSX_FIFO_ODR_MASK)) | fifo_mode; - break; - default: - return -EINVAL; - } - - err = hw->tf->write(hw->dev, ST_LSM6DSX_REG_FIFO_MODE_ADDR, - sizeof(data), &data); + err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_FIFO_MODE_ADDR, + ST_LSM6DSX_FIFO_MODE_MASK, fifo_mode); if (err < 0) return err; @@ -164,6 +151,17 @@ int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw, return 0; } +static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor, + bool enable) +{ + struct st_lsm6dsx_hw *hw = sensor->hw; + u8 data; + + data = hw->enable_mask ? ST_LSM6DSX_MAX_FIFO_ODR_VAL : 0; + return st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_FIFO_MODE_ADDR, + ST_LSM6DSX_FIFO_ODR_MASK, data); +} + int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark) { u16 fifo_watermark = ~0, cur_watermark, sip = 0; @@ -345,6 +343,10 @@ static int st_lsm6dsx_update_fifo(struct iio_dev *iio_dev, bool enable) return err; } + err = st_lsm6dsx_set_fifo_odr(sensor, enable); + if (err < 0) + return err; + err = st_lsm6dsx_update_decimators(hw); if (err < 0) return err; |