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| author | Hartmut Knaack <knaack.h@gmx.de> | 2014-10-25 20:09:11 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2014-10-25 20:55:56 +0100 |
| commit | 345b48307d6961183be77748fc0ae5dd660c91a8 (patch) | |
| tree | 02e24480a1a2e8bd58395f212f3b76b9dff89d11 /drivers/iio/humidity | |
| parent | acd8256723f286b7217801fbed24503f8565b91e (diff) | |
| download | linux-stable-345b48307d6961183be77748fc0ae5dd660c91a8.tar.gz linux-stable-345b48307d6961183be77748fc0ae5dd660c91a8.tar.bz2 linux-stable-345b48307d6961183be77748fc0ae5dd660c91a8.zip | |
iio:humidity:si7020: cleanup read_raw and probe
When reading temperature or humidity values, a shift of two bits to the right
needs to be applied, and only for the humidity channel a mask of the lower
12 bits needs to be applied. This reduces code repetition.
During probe, i2c_set_clientdata() was used, although its counterpart was not,
so drop it.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/humidity')
| -rw-r--r-- | drivers/iio/humidity/si7020.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/iio/humidity/si7020.c b/drivers/iio/humidity/si7020.c index e336af713f20..69e49f58a455 100644 --- a/drivers/iio/humidity/si7020.c +++ b/drivers/iio/humidity/si7020.c @@ -56,10 +56,9 @@ static int si7020_read_raw(struct iio_dev *indio_dev, SI7020CMD_RH_HOLD); if (ret < 0) return ret; - if (chan->type == IIO_TEMP) - *val = ret >> 2; - else - *val = (ret & 0x3FFF) >> 2; + *val = ret >> 2; + if (chan->type == IIO_HUMIDITYRELATIVE) + *val &= GENMASK(11, 0); return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: if (chan->type == IIO_TEMP) @@ -133,7 +132,6 @@ static int si7020_probe(struct i2c_client *client, data = iio_priv(indio_dev); *data = client; - i2c_set_clientdata(client, indio_dev); indio_dev->dev.parent = &client->dev; indio_dev->name = dev_name(&client->dev); |