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Commit f6f58d9d authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Jonathan Cameron
Browse files

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: e4a70e3e (iio: humidity: add support to hts221 rh/temp device)
Fixes: b7079eea (iio: humidity: hts221: add power management support)
Signed-off-by: default avatarLorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 2ede2740

drivers/iio/humidity/hts221_core.c

+4 −6
Original line number Diff line number Diff line
@@ -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;

}