> > + if (!wait_for_completion_timeout(&info->completion, > > + msecs_to_jiffies(100))) { > > Dunno if it's better to have this parameter to be defined with self-explanatory > name. Probably a response to my earlier comment. I'd agree with a good name but GPADC_TIMEOUT which was the earlier naming is less use than a value and it's not obvious what that name should be. A nice datasheet reference would be good to have though. > > > + ret = -ETIMEDOUT; > > + goto err; > > + } > > > > + if (num_channels > SUN20I_GPADC_MAX_CHANNELS) { > > + dev_err(dev, "num of channel children out of range"); > > + return -EINVAL; > > + } > > Is it really critical error? Overflow of registers - so yes. I wondered this on v1 and went digging :) Now, there are no such devices known, so meh on whether check is useful. > > ...