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| author |   Jacek Anaszewski <j.anaszewski@samsung.com> | 2013-07-02 11:13:00 +0100 |
|---|---|---|
| committer |   Jonathan Cameron <jic23@kernel.org> | 2013-08-03 19:00:27 +0100 |
| commit | 1003eb67baf00cca8aa51f5833090c61938aa82e (patch) | |
| tree | d17adcbb2be2788b323e01ba26867bbfc7e85280 /drivers/iio/pressure | |
| parent | iio: light: tsl2563: Use devm_* APIs (diff) | |
| download | linux-dev-1003eb67baf00cca8aa51f5833090c61938aa82e.tar.xz linux-dev-1003eb67baf00cca8aa51f5833090c61938aa82e.zip | |
iio: lps331ap: Modify in_temp_scale calculation way
This patch modifies the way how the in_temp_scale output value is
calculated. With this implementation it is more clear how the value
is obtained.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/pressure')
| -rw-r--r-- | drivers/iio/pressure/st_pressure_core.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index 81e2d5b030a6..43b3a55e1130 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -31,6 +31,9 @@ #define ST_PRESS_LSB_PER_MBAR 4096UL #define ST_PRESS_KPASCAL_NANO_SCALE (100000000UL / \ ST_PRESS_LSB_PER_MBAR) +#define ST_PRESS_LSB_PER_CELSIUS 480UL +#define ST_PRESS_CELSIUS_NANO_SCALE (1000000000UL / \ + ST_PRESS_LSB_PER_CELSIUS) #define ST_PRESS_NUMBER_DATA_CHANNELS 1 /* DEFAULT VALUE FOR SENSORS */ @@ -53,8 +56,8 @@ #define ST_PRESS_1_FS_ADDR 0x23 #define ST_PRESS_1_FS_MASK 0x30 #define ST_PRESS_1_FS_AVL_1260_VAL 0x00 -#define ST_PRESS_1_FS_AVL_TEMP_GAIN 2083000 #define ST_PRESS_1_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE +#define ST_PRESS_1_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE #define ST_PRESS_1_BDU_ADDR 0x20 #define ST_PRESS_1_BDU_MASK 0x04 #define ST_PRESS_1_DRDY_IRQ_ADDR 0x22 |