iio: tsl2583: Use DIV_ROUND_CLOSEST() instead of open-coding it

[sfrench/cifs-2.6.git] / drivers / iio / light / tsl2583.c

diff --git a/drivers/iio/light/tsl2583.c b/drivers/iio/light/tsl2583.c
index 9e5490b7473bdcc40a07f823f41a58634a360866..0f787bfc88fc48f262b584e10f26b498bd8a9e76 100644 (file)
--- a/drivers/iio/light/tsl2583.c
+++ b/drivers/iio/light/tsl2583.c
@@ -285,7 +285,7 @@ static int tsl2583_get_lux(struct iio_dev *indio_dev)
        lux64 = lux64 * chip->als_settings.als_gain_trim;
        lux64 >>= 13;
        lux = lux64;
-       lux = (lux + 500) / 1000;
+       lux = DIV_ROUND_CLOSEST(lux, 1000);
 
        if (lux > TSL2583_LUX_CALC_OVER_FLOW) { /* check for overflow */
 return_max:
@@ -361,12 +361,12 @@ static int tsl2583_set_als_time(struct tsl2583_chip *chip)
        u8 val;
 
        /* determine als integration register */
-       als_count = (chip->als_settings.als_time * 100 + 135) / 270;
+       als_count = DIV_ROUND_CLOSEST(chip->als_settings.als_time * 100, 270);
        if (!als_count)
                als_count = 1; /* ensure at least one cycle */
 
        /* convert back to time (encompasses overrides) */
-       als_time = (als_count * 27 + 5) / 10;
+       als_time = DIV_ROUND_CLOSEST(als_count * 27, 10);
 
        val = 256 - als_count;
        ret = i2c_smbus_write_byte_data(chip->client,
@@ -380,7 +380,7 @@ static int tsl2583_set_als_time(struct tsl2583_chip *chip)
 
        /* set chip struct re scaling and saturation */
        chip->als_saturation = als_count * 922; /* 90% of full scale */
-       chip->als_time_scale = (als_time + 25) / 50;
+       chip->als_time_scale = DIV_ROUND_CLOSEST(als_time, 50);
 
        return ret;
 }