openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

iio: st_pressure: Fix data sign 

Datasheet of each device (lps331ap, lps25h, lps001wp, lps22hb) says that
the pressure and temperature data is a 2's complement.

I'm sending this the slow way, as negative pressures on these are pretty
unusual and the nature of the fixing of multiple device introduction patches
will make it hard to apply to older kernels - Jonathan.

Fixes: 217494e5b7 ("iio:pressure: Add STMicroelectronics pressures driver")
Fixes: 2f5effcbd0 ("iio: pressure-core: st: Expand and rename LPS331AP's channel descriptor")
Fixes: 7885a8ce68 ("iio: pressure: st: Add support for new LPS001WP pressure sensor")
Fixes: e039e2f5b4 ("iio:st_pressure:initial lps22hb sensor support")
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Marcin Niestroj 2016-12-12 17:58:42 +01:00 committed by Jonathan Cameron
parent c7bff8902d
commit 1b211d48ab
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/iio/pressure/st_pressure_core.c
View File

@ -136,7 +136,7 @@ static const struct iio_chan_spec st_press_1_channels[] = {
.address = ST_PRESS_1_OUT_XL_ADDR,
.scan_index = 0,
.scan_type = {
.sign = 'u',
.sign = 's',
.realbits = 24,
.storagebits = 32,
.endianness = IIO_LE,
@ -149,7 +149,7 @@ static const struct iio_chan_spec st_press_1_channels[] = {
.address = ST_TEMP_1_OUT_L_ADDR,
.scan_index = 1,
.scan_type = {
.sign = 'u',
.sign = 's',
.realbits = 16,
.storagebits = 16,
.endianness = IIO_LE,
@ -168,7 +168,7 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = {
.address = ST_PRESS_LPS001WP_OUT_L_ADDR,
.scan_index = 0,
.scan_type = {
.sign = 'u',
.sign = 's',
.realbits = 16,
.storagebits = 16,
.endianness = IIO_LE,
@ -182,7 +182,7 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = {
.address = ST_TEMP_LPS001WP_OUT_L_ADDR,
.scan_index = 1,
.scan_type = {
.sign = 'u',
.sign = 's',
.realbits = 16,
.storagebits = 16,
.endianness = IIO_LE,
@ -200,7 +200,7 @@ static const struct iio_chan_spec st_press_lps22hb_channels[] = {
.address = ST_PRESS_1_OUT_XL_ADDR,
.scan_index = 0,
.scan_type = {
.sign = 'u',
.sign = 's',
.realbits = 24,
.storagebits = 32,
.endianness = IIO_LE,