** Changed in: linux-oem-5.13 (Ubuntu Focal)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1928047
Title:
AX201 BT will cause system could not enter S0i3
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux-oem-5.13 package in Ubuntu:
Invalid
Status in linux source package in Focal:
New
Status in linux-oem-5.10 source package in Focal:
Fix Released
Status in linux-oem-5.13 source package in Focal:
Fix Committed
Status in linux source package in Hirsute:
Fix Released
Status in linux source package in Impish:
In Progress
Status in linux-oem-5.10 source package in Impish:
Invalid
Bug description:
[Impact]
Platforms with AX201 BT fail to pass the power consumption tests
[Fix]
Intel provides us the patch to fix it.
https://patchwork.kernel.org/project/intel-gfx/patch/[email protected]/
Wa_14010685332 sequence toggles a SDE chicken bit on and then off as
the final step when disabling interrupts in preparation for runtime
suspend. And this sequence also fixes the issues that
dispcnlunit1_cp_xosc_clkreq clock keeps to be active on TGL-H during
s2idle.
v2.
8b46cc6577f4 drm/i915: Tweaked Wa_14010685332 for all PCHs
[Test]
Verified on the Dell machines with AX201 BT on them.
[Where problems may occur]
This patch extend the s0ix fix from gen8 and gen11 to CNP, ICP, JSP, MCC,
TGP, and ADP PCHs, and also move the Wa_14010685332 sequence from reset
functions to suspend/resume functions. It won't affect old chips as there is a
if statement to check the pch type, and new chips require this sequence to work
well.
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