- switch (val) {
- case 1: data->fan_div[nr] = 0; break;
- case 2: data->fan_div[nr] = 1; break;
- case 4: data->fan_div[nr] = 2; break;
- case 8: data->fan_div[nr] = 3; break;
- default:
- dev_err(&client->dev, "fan_div value %ld not "
- "supported. Choose one of 1, 2, 4 or 8!\n", val);
- up(&data->update_lock);
- return -EINVAL;
- }
+ val = simple_strtoul(buf, NULL, 10);
+ data->fan_div[nr] = DIV_TO_REG(val);