Am 17.03.2015 um 09:48 schrieb Pavel Machek [off-list ref]:

quoted

Temperature calibration should have already been done in the underlaying twl4030 iio driver.

Discharge rate is the real current flow reported in uA. Also
reported by iio.

Ack, but there's rather severe temperature dependency of the lithium
battery, which you should take into account if you want to compute
?percentage charged".

We just want to estimate it as good as possible. 5-10% is sufficient
and better than no value at all (which is what you get without this
driver).

And, we just convert the (existing) driver from non-DT to DT and to use
iio, so we do not want to change the inner logic what it does and how it
works.

BR,
Nikolaus