2022-07-27 Meeting notes

@Lorenzo Pieralisi

SCMI and ACPI

SCMI has good capabilitiy with ACPI.

SystemReady does not mandate any power methods.

No perfect device exist today for client PC power management related work. Juno is outdated.

SCMI interface could be emulated in TF-A. QEMU could be potentially used to build an emulated platform with acpi power methods and capabilities to validate the software stack.

Lorenzo can put the details (e.g: what needs to be emulated etc.) on confluence and Shashi can identify if anymore work is required on QEMU to support that.

@Shashi Mallela (Deactivated)

RD-N2 FVP Feedback

Linux UEFI+ACPI on RD-N2 FVP

Lorenzo - FVP can be also used for power management emulation.

@Shashi Mallela (Deactivated)

Power management tests in FWTS

Power Management Tests in FWTS

@Fugang Duan (Deactivated)

Rasbperry Pi Power Management

Platform statistics for ACPI support

Last Meeting Actions：2022-07-20 Meeting notes

RPi has only limited power management capabilities and does not look like a suitable platform for power management capabilities

@Fugang Duan (Deactivated)

NXP i.MX8MP could be a potential reference platform for PM works.

Good support for power management capabilities in device tree.

EDK2 firmware bring up might be required.

Add IMX platform support to the table.

@Fugang Duan (Deactivated)

Linux ACPI power management summary

Client PC - Linux ACPI low power alignment

ticket：

https://linaro.atlassian.net/browse/CLIENTPC-8

Jammy - Platforms needs to be decided before we can investigate the tasks.

Reference Platform for Power, Performance and Thermal Management

Jammy - Can we add an extra column in acpi platform table to capture platforms that could be extended for a missing feature.