diff options
| author | Thomas Haemmerle <thomas.haemmerle@leica-geosystems.com> | 2024-04-15 12:50:30 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-04-20 14:53:02 +0100 |
| commit | 5826711e841450755cae32bacc59f6465075db94 (patch) | |
| tree | 82c95d96bbff622977acb4f2c3a94802c2abff4e | |
| parent | c046bb5d9512e3c00b0e17c581f50bbb6c641d58 (diff) | |
iio: pressure: dps310: simplify scale factor reading
Both functions `dps310_get_pres_precision` and
`dps310_get_temp_precision` provide the oversampling rate by calling the
`BIT()` macro. However, to look up the corresponding scale factor, we
need the register value itself. Currently, this is achieved by undoing
the calculation of the oversampling rate with `ilog2()`.
Simplify the two functions for getting the scale factor and directly
use the register content for the lookup.
Signed-off-by: Thomas Haemmerle <thomas.haemmerle@leica-geosystems.com>
Link: https://lore.kernel.org/r/20240415105030.1161770-5-thomas.haemmerle@leica-geosystems.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/pressure/dps310.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/iio/pressure/dps310.c b/drivers/iio/pressure/dps310.c index c30623d96f0e..7d882e15e556 100644 --- a/drivers/iio/pressure/dps310.c +++ b/drivers/iio/pressure/dps310.c @@ -382,11 +382,11 @@ static int dps310_get_pres_k(struct dps310_data *data, int *val) { int reg_val, rc; - rc = dps310_get_pres_precision(data, ®_val); - if (rc) + rc = regmap_read(data->regmap, DPS310_PRS_CFG, ®_val); + if (rc < 0) return rc; - *val = scale_factors[ilog2(reg_val)]; + *val = scale_factors[reg_val & GENMASK(2, 0)]; return 0; } @@ -395,11 +395,11 @@ static int dps310_get_temp_k(struct dps310_data *data, int *val) { int reg_val, rc; - rc = dps310_get_temp_precision(data, ®_val); - if (rc) + rc = regmap_read(data->regmap, DPS310_TMP_CFG, ®_val); + if (rc < 0) return rc; - *val = scale_factors[ilog2(reg_val)]; + *val = scale_factors[reg_val & GENMASK(2, 0)]; return 0; } |