Skip to content

Allow GPU power domain to turn it's regulator

Guido Gunther requested to merge guido.gunther/linux-next:pmic-enable into imx8-current-librem5

This sets default values for regulator startup times (instead of adding board specific regulator-enable-ramp-delay. This fixes a board hang when the GPU PD gets enabled and hence we can remove the regulator-always-on allowing it to be turned off when the GPU is idle. This helps active usage runtime but even more idle runtime. I'm measurin ~10mA less current but values are fluctuating quite a bit.

The way this is solved will also help VPU and CSI (if we still see hangs we might need to bump regulator-enable-ramp-delay for these due to boad specific load).

Merge request reports