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pm: device_runtime: add zephyr,pm-device-runtime-auto

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Add the `zephyr,pm-device-runtime-auto` flag to `pm.yaml` and
`struct pm_device`.

This flag is intended to signify to the boot system that device runtime
PM should be automatically enabled on the device after the init function
has run.

Only run `pm_device_runtime_auto_enable` function on a device if
initialisation succeeded. This prevents actions being run on devices
that are not ready.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2022-03-12 21:10:42 +10:00 • committed by Anas Nashif
commit db3d51bb7d
5 changed files with 54 additions and 8 deletions
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6
dts/bindings/base/pm.yaml
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@ -24,3 +24,9 @@ properties:
The device will be notified when the power domain it belongs to is either
suspended or resumed.
zephyr,pm-device-runtime-auto:
type: boolean
description: |
Automatically configure the device for runtime power management after the
init function runs.