[Bug 2059263] Re: Fix acpi_power_meter accessing IPMI region before it's ready

** Tags removed: verification-needed-mantic-linux
** Tags added: verification-done-mantic-linux

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https://bugs.launchpad.net/bugs/2059263

Title:
Fix acpi_power_meter accessing IPMI region before it's ready

Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Committed
Status in linux-oem-6.5 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Won't Fix
Status in linux-oem-6.5 source package in Jammy:
Fix Released
Status in linux source package in Mantic:
Fix Committed
Status in linux-oem-6.5 source package in Mantic:
Invalid
Status in linux source package in Noble:
Fix Released
Status in linux-oem-6.5 source package in Noble:
Invalid

Bug description:
[Impact]
ACPI error can be found in kernel message:
[ 3.717920] ACPI Error: No handler for Region [SYSI] (00000000ab9e62c5) [IPMI] (20230628/evregion-130)

[Fix]
On Dell systems that have IPI0001 device, ensure IPMI region is ready
before acpi_power_meter invokes any ACPI method.

[Test]
With the patch applied, no such error can be found in kernel message.
acpi_power_meter sysfs also works correctly.

[Where problems could occur]
If asynchronous probe is disabled, the device drivers that probe after
acpi_power_meter needs to wait until the completion is done, hence the
boot time might be slower.

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