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authorJacek Anaszewski <j.anaszewski@samsung.com>2013-07-02 10:13:00 (GMT)
committerJonathan Cameron <jic23@kernel.org>2013-08-03 18:00:27 (GMT)
commit1003eb67baf00cca8aa51f5833090c61938aa82e (patch)
treed17adcbb2be2788b323e01ba26867bbfc7e85280 /drivers/iio/pressure
parentbace48f44adb954ad71e62779d1be52dae3f0caf (diff)
downloadlinux-1003eb67baf00cca8aa51f5833090c61938aa82e.tar.xz
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.c5
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 81e2d5b..43b3a55 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