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ACPI / processor: Set default C1 idle state description 

The ACPI idle driver will default to ACPI_CSTATE_HALT for C1 if a _CST
object for C1 is not defined. However, the description will not be set,
so users will see "<null>" when reading the description from sysfs.

Set the C1 state description when defaulting to ACPI_CSTATE_HALT.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Yazen Ghannam 2018-01-29 14:22:49 -06:00 committed by Rafael J. Wysocki
parent ba1edb9a51
commit 248e8841b4
1 changed files with 3 additions and 0 deletions
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3
drivers/acpi/processor_idle.c
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@ -291,6 +291,9 @@ static int acpi_processor_get_power_info_default(struct acpi_processor *pr)
pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;
pr->power.states[ACPI_STATE_C1].valid = 1;
pr->power.states[ACPI_STATE_C1].entry_method = ACPI_CSTATE_HALT;
snprintf(pr->power.states[ACPI_STATE_C1].desc,
ACPI_CX_DESC_LEN, "ACPI HLT");
}
/* the C0 state only exists as a filler in our array */
pr->power.states[ACPI_STATE_C0].valid = 1;