Documentation for HI6421


#1

Hello,

I was wondering if there is any doc about the HI6421 component on Hikey960/970. I looked at the documentation repository but there is nothing about this part. I also looked into the Linux driver but not all registers seem to be documented. My goal is to figure out if that part exposes any voltage/current information that could be used to estimate power consumption.


#2

Hi @sgosselin,

Hisilicon doesn’t open the documentation for PMIC Hi6421. Seems to me, you are requesting the energy sensor liked functionality in the PMIC, this kind functionality before I only used for Arm Juno r2 board.

Alternatively, you could refer the section “power management” in the doc https://www.96boards.org/documentation/consumer/hikey/hikey960/hardware-docs/hardware-user-manual.md.html, not sure if this can meet your requirement or not.

Thanks,
Leo Yan