> On Mon, 17 Jul 2017 19:38:58 +0200
> Lorenzo Bianconi <lorenzo.bianconi83@xxxxxxxxx> wrote:
>
>> 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@xxxxxx>
> Applied to the togreg branch of iio.git and pushed out as testing.
>
> If we want to do a backport of this it would be fine, but it needs
> to require absolute minimal changes to the driver.
>
I think we need to push write_with_mask patch as well in order to fix
that issue. What do you think?
Regards,
Lorenzo
> Jonathan
>> ---
>> drivers/iio/humidity/hts221_core.c | 10 ++++------
>> 1 file 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;
>> }
>
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