tree dfde889af6cfa191cdd388aa7eb7ddc07ed4dc70
parent 913f201083c81cf021f050d041352ac854c4b526
author Leo Yan <leo.yan@linaro.org> 1459250612 +0800
committer Eduardo Valentin <edubezval@gmail.com> 1461797641 -0700

thermal: hisilicon: increase temperature resolution

When calculate temperature, old code firstly do division and then
convert to "millicelsius" unit. This will lose resolution and only can
read back temperature with "Celsius" unit.

So firstly scale step value to "millicelsius" and then do division, so
finally we can increase resolution for temperature value. Also refine
the calculation from temperature value to step value.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>