diff options
Diffstat (limited to 'drivers/hwmon/sht21.c')
| -rw-r--r-- | drivers/hwmon/sht21.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/drivers/hwmon/sht21.c b/drivers/hwmon/sht21.c index 1c8c9812f244..15398780cc00 100644 --- a/drivers/hwmon/sht21.c +++ b/drivers/hwmon/sht21.c @@ -83,25 +83,6 @@ static inline int sht21_rh_ticks_to_per_cent_mille(int ticks) } /** - * sht21_read_word_data() - read word from register - * @client: I2C client device - * @reg: I2C command byte - * - * Returns value, negative errno on error. - */ -static inline int sht21_read_word_data(struct i2c_client *client, u8 reg) -{ - int ret = i2c_smbus_read_word_data(client, reg); - if (ret < 0) - return ret; - /* - * SMBus specifies low byte first, but the SHT21 returns MSB - * first, so we have to swab16 the values - */ - return swab16(ret); -} - -/** * sht21_update_measurements() - get updated measurements from device * @client: I2C client device * @@ -119,12 +100,13 @@ static int sht21_update_measurements(struct i2c_client *client) * maximum two measurements per second at 12bit accuracy shall be made. */ if (time_after(jiffies, sht21->last_update + HZ / 2) || !sht21->valid) { - ret = sht21_read_word_data(client, SHT21_TRIG_T_MEASUREMENT_HM); + ret = i2c_smbus_read_word_swapped(client, + SHT21_TRIG_T_MEASUREMENT_HM); if (ret < 0) goto out; sht21->temperature = sht21_temp_ticks_to_millicelsius(ret); - ret = sht21_read_word_data(client, - SHT21_TRIG_RH_MEASUREMENT_HM); + ret = i2c_smbus_read_word_swapped(client, + SHT21_TRIG_RH_MEASUREMENT_HM); if (ret < 0) goto out; sht21->humidity = sht21_rh_ticks_to_per_cent_mille(ret); |