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| author | Yazen Ghannam <yazen.ghannam@amd.com> | 2019-02-18 01:33:49 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-02-18 11:29:13 +0100 |
| commit | 34a62cd0df89dd7034165048c0921d1314191b66 (patch) | |
| tree | 3964c4d068858be67a5323144f51a225b27b233a /drivers/acpi | |
| parent | 04b1d5d098491244f506c4265cc95b87210eef2f (diff) | |
| download | linux-34a62cd0df89dd7034165048c0921d1314191b66.tar.bz2 | |
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: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index b2131c4ea124..98d4ec5bf450 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -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; } |