iio:light:stk3310: make endianness independent of host

Data is stored in the device in be16 format. Make use of be16_to_cpu and
cpu_to_be16 to have correct endianness on any host architecture.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Reviewed-by: Tiberiu Breana <tiberiu.a.breana@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index e7e6e5a2b1f8c37485e28e2952c53a02617d2aa3..11a027adc204aeb630c66707eaf9d5d0ce169ebb 100644 (file)
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -200,7 +200,7 @@ static int stk3310_read_event(struct iio_dev *indio_dev,
                              int *val, int *val2)
 {
        u8 reg;
-       u16 buf;
+       __be16 buf;
        int ret;
        struct stk3310_data *data = iio_priv(indio_dev);
 
@@ -222,7 +222,7 @@ static int stk3310_read_event(struct iio_dev *indio_dev,
                dev_err(&data->client->dev, "register read failed\n");
                return ret;
        }
-       *val = swab16(buf);
+       *val = be16_to_cpu(buf);
 
        return IIO_VAL_INT;
 }
@@ -235,7 +235,7 @@ static int stk3310_write_event(struct iio_dev *indio_dev,
                               int val, int val2)
 {
        u8 reg;
-       u16 buf;
+       __be16 buf;
        int ret;
        unsigned int index;
        struct stk3310_data *data = iio_priv(indio_dev);
@@ -252,7 +252,7 @@ static int stk3310_write_event(struct iio_dev *indio_dev,
        else
                return -EINVAL;
 
-       buf = swab16(val);
+       buf = cpu_to_be16(val);
        ret = regmap_bulk_write(data->regmap, reg, &buf, 2);
        if (ret < 0)
                dev_err(&client->dev, "failed to set PS threshold!\n");
@@ -301,7 +301,7 @@ static int stk3310_read_raw(struct iio_dev *indio_dev,
                            int *val, int *val2, long mask)
 {
        u8 reg;
-       u16 buf;
+       __be16 buf;
        int ret;
        unsigned int index;
        struct stk3310_data *data = iio_priv(indio_dev);
@@ -322,7 +322,7 @@ static int stk3310_read_raw(struct iio_dev *indio_dev,
                        mutex_unlock(&data->lock);
                        return ret;
                }
-               *val = swab16(buf);
+               *val = be16_to_cpu(buf);
                mutex_unlock(&data->lock);
                return IIO_VAL_INT;
        case IIO_CHAN_INFO_INT_TIME: