3.3.9. Upstream Status

At TI, developers practice an upstream-first mindset where all patches in the SDK should be available in the upstream repositories as soon as possible. However, because of the extensive community review process, getting patches into the upstream repositories can take a long time, so features might appear in the SDK before upstream.

This page tracks the status of all low power features in upstream. We encourage users to review any pending series listed.

We update this page with each SDK release, so it might fall out of date as the upstream community accepts new patches.

Note

Upstream support for a wakeup source does not guarantee device tree configuration. Refer to the “Wakeup Sources” section for more information about how to configure wakeup sources.

Table 3.6 Feature Upstream Status

Feature	Upstream	Notes
DeepSleep	Yes
MCU Only	Yes
Partial I/O	Yes
I/O Only Plus DDR	In progress	Linux and U-Boot patches are pending review.
Dynamic Frequency Scaling	Yes
Standby	No
Runtime PM	Yes

Table 3.7 Wakeup Source Upstream Status

Wakeup Source	DeepSleep	MCU Only	Partial I/O	I/O Only Plus DDR	Notes
Real-Time Clock (RTC)	Yes	Yes
WKUP GPIO	Yes	Yes
Main I/O Daisy Chain	Partial	Partial			Upstream includes Main UART wakeup but not Main GPIO wakeup.
USB	Yes	Yes
WKUP UART	Yes	Yes
MCU IPC		Yes
CAN I/O Daisy Chain	No	No	Yes	In progress	I/O Only Plus DDR patches are in progress.

3.3.9.1. Pending Upstream Series

Table 3.10 Pending Upstream Series

Series	Feature Covered	Codebase
arm64: dts: ti: k3-am62a7-sk: Split r5f memory region	I/O Only Plus DDR	Linux
am62: IO+DDR resume support	I/O Only Plus DDR	U-Boot
IO+DDR low power mode bugfixes for AM62P and AM62A	I/O Only Plus DDR	U-Boot

Enable I/O Only Plus DDR in upstream by applying these patches to the corresponding codebase.

3.3.9.2. Workarounds

No workarounds are needed for AM62Dx.