47 struct sht21 {  struct
95 	struct sht21 *sht21 = dev_get_drvdata(dev);  in sht21_update_measurements()  local
96 	struct i2c_client *client = sht21->client;  in sht21_update_measurements()
98 	mutex_lock(&sht21->lock);  in sht21_update_measurements()
104 	if (time_after(jiffies, sht21->last_update + HZ / 2) || !sht21->valid) {  in sht21_update_measurements()
109 		sht21->temperature = sht21_temp_ticks_to_millicelsius(ret);  in sht21_update_measurements()
114 		sht21->humidity = sht21_rh_ticks_to_per_cent_mille(ret);  in sht21_update_measurements()
115 		sht21->last_update = jiffies;  in sht21_update_measurements()
116 		sht21->valid = 1;  in sht21_update_measurements()
119 	mutex_unlock(&sht21->lock);  in sht21_update_measurements()
137 	struct sht21 *sht21 = dev_get_drvdata(dev);  in sht21_show_temperature()  local
143 	return sprintf(buf, "%d\n", sht21->temperature);  in sht21_show_temperature()
159 	struct sht21 *sht21 = dev_get_drvdata(dev);  in sht21_show_humidity()  local
165 	return sprintf(buf, "%d\n", sht21->humidity);  in sht21_show_humidity()
180 ATTRIBUTE_GROUPS(sht21);
187 	struct sht21 *sht21;  in sht21_probe()  local
196 	sht21 = devm_kzalloc(dev, sizeof(*sht21), GFP_KERNEL);  in sht21_probe()
197 	if (!sht21)  in sht21_probe()
200 	sht21->client = client;  in sht21_probe()
202 	mutex_init(&sht21->lock);  in sht21_probe()
205 							   sht21, sht21_groups);  in sht21_probe()