The value range of the chip's 'FAN DRIVE SETTING' register is 0-255.
But currently, the driver can only set up to 10 values at most (even via
the 'hwmon' subsystem) when the 'thermal' subsystem is reachable, and
there is no way to increase this limit via "emc2305_platform_data".
Should the "pdata->max_state > EMC2305_FAN_MAX_STATE" check be removed?
Or 'EMC2305_FAN_MAX_STATE' should be defined as '0xff'?
This should be the third patch?
> pdata = dev_get_platdata(&client->dev);
> if (pdata) {
> if (!pdata->max_state || pdata->max_state > EMC2305_FAN_MAX_STATE)
> return -EINVAL;
> data->max_state = pdata->max_state;
