** Changed in: linux-firmware (Ubuntu)
Status: Incomplete => Fix Released
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https://bugs.launchpad.net/bugs/2111973
Title:
Fix unable to enter s0i3 on DCN 3.5/3.5.1 when USB4 disabled
Status in linux-firmware package in Ubuntu:
Fix Released
Bug description:
[Impact]
On DCN 3.5/3.5.1 if the system doesn't have USB4 routers enabled then the
system isn't able to get into s0i3 (HW sleep state).
[Test Plan]
a. Disabled USB4 routers
b. Boot the system and suspend/resume cycle properly.
[Where problems could occur]
S2idle depends upon IPS which depends upon DPIA to be power gated. If USB4
routers are disabled default DPIA power state is not power gated.
[Other info]
https://gitlab.com/kernel-firmware/linux-firmware/-/commit/a80a8bd73e0b2148b92e4c58741925ed2130bfcb
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