aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/acpi/processor_idle.c
diff options
context:
space:
mode:
authorYazen Ghannam <yazen.ghannam@amd.com>2018-01-29 14:22:49 -0600
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-02-04 09:21:44 +0100
commit248e8841b4fbb07048f1eb4f63b74bd3c4cf91f2 (patch)
treeb5c72adfbb7a2e715decdc9fe0663a77853673a8 /drivers/acpi/processor_idle.c
parentACPI: processor_perflib: Do not send _PPC change notification if not ready (diff)
downloadlinux-dev-248e8841b4fbb07048f1eb4f63b74bd3c4cf91f2.tar.xz
linux-dev-248e8841b4fbb07048f1eb4f63b74bd3c4cf91f2.zip
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>
Diffstat (limited to 'drivers/acpi/processor_idle.c')
-rw-r--r--drivers/acpi/processor_idle.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index d50a7b6ccddd..226dc5665d81 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -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;