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| author | Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> | 2017-07-17 20:38:58 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2017-07-22 23:18:11 +0300 |
| commit | f6f58d9d93fdb53f24b0086ce1c51d3388aa6e53 (patch) | |
| tree | 7cffc804094093f2c749d144bc0ac47002eb152a /drivers/iio/humidity | |
| parent | 2ede27402a66a896015491d9524f982c522a740a (diff) | |
| download | linux-f6f58d9d93fdb53f24b0086ce1c51d3388aa6e53.tar.xz | |
iio: humidity: hts221: do not overwrite reserved data during power-down
GENMASK(6, 3) in CTRL_REG1 and GENMASK(6, 2) in CTRL_REG2 are marked
reserved. Do not changed the original value (not declared in the
datasheet) during power-down/suspend routines.
Fixes: e4a70e3e7d84 (iio: humidity: add support to hts221 rh/temp device)
Fixes: b7079eeac5da (iio: humidity: hts221: add power management support)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/humidity')
| -rw-r--r-- | drivers/iio/humidity/hts221_core.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/iio/humidity/hts221_core.c b/drivers/iio/humidity/hts221_core.c index 47a29b2da1ce..6e5847386a45 100644 --- a/drivers/iio/humidity/hts221_core.c +++ b/drivers/iio/humidity/hts221_core.c @@ -305,11 +305,10 @@ int hts221_power_on(struct hts221_hw *hw) int hts221_power_off(struct hts221_hw *hw) { - __le16 data = 0; int err; - err = hw->tf->write(hw->dev, HTS221_REG_CNTRL1_ADDR, sizeof(data), - (u8 *)&data); + err = hts221_write_with_mask(hw, HTS221_REG_CNTRL1_ADDR, + HTS221_ENABLE_MASK, false); if (err < 0) return err; @@ -692,11 +691,10 @@ static int __maybe_unused hts221_suspend(struct device *dev) { struct iio_dev *iio_dev = dev_get_drvdata(dev); struct hts221_hw *hw = iio_priv(iio_dev); - __le16 data = 0; int err; - err = hw->tf->write(hw->dev, HTS221_REG_CNTRL1_ADDR, sizeof(data), - (u8 *)&data); + err = hts221_write_with_mask(hw, HTS221_REG_CNTRL1_ADDR, + HTS221_ENABLE_MASK, false); return err < 0 ? err : 0; } |