[PATCH v4 4/5] arm64: add support for ACPI Low Power Idle(LPI)

Sudeep Holla sudeep.holla at arm.com
Wed May 11 08:06:29 PDT 2016

On 11/05/16 01:07, Rafael J. Wysocki wrote:
> On Tuesday, April 19, 2016 01:30:12 PM Sudeep Holla wrote:
>> This patch adds appropriate callbacks to support ACPI Low Power Idle
>> (LPI) on ARM64.
>> It also selects ARCH_SUPPORTS_ACPI_PROCESSOR_LPI if ACPI is enabled
>> on ARM64.
> Can you remind me why we need the ARCH_SUPPORTS_ACPI_PROCESSOR_LPI thing in
> addition to the previously defined ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE?

That's stupid of me, I removed it from the driver in v4 but the few
remnants of it stayed by mistake(mainly in this patch alone)

> I thought supporting LPI would not require an arch Kconfig option.

That's correct.


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