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Commit 34a62cd0 authored by Yazen Ghannam's avatar Yazen Ghannam Committed by Rafael J. Wysocki
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ACPI / processor: Set P_LVL{2,3} idle state descriptions 



The ACPI idle driver will fallback to using the legacy P_LVL* SystemIO
method of entering C-states if the _CST method is disabled and P_BLK is
defined. However, in this case the C2 and C3 states won't have a
description set, so the user will see "<null>" when reading the
description from sysfs.

Give each of these states a description.

Signed-off-by: default avatarYazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 04b1d5d0

drivers/acpi/processor_idle.c

+7 −0
Original line number Diff line number Diff line
@@ -282,6 +282,13 @@ static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr) 
			  pr->power.states[ACPI_STATE_C2].address,

			  pr->power.states[ACPI_STATE_C3].address));



	snprintf(pr->power.states[ACPI_STATE_C2].desc,

			 ACPI_CX_DESC_LEN, "ACPI P_LVL2 IOPORT 0x%x",

			 pr->power.states[ACPI_STATE_C2].address);

	snprintf(pr->power.states[ACPI_STATE_C3].desc,

			 ACPI_CX_DESC_LEN, "ACPI P_LVL3 IOPORT 0x%x",

			 pr->power.states[ACPI_STATE_C3].address);



	return 0;

}