Messages in this thread Patch in this message | | | From | Yazen Ghannam <> | Subject | [PATCH] ACPI / processor_idle: Set default C1 state description | Date | Mon, 29 Jan 2018 14:22:49 -0600 |
| |
From: Yazen Ghannam <yazen.ghannam@amd.com>
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> Cc: stable@vger.kernel.org --- drivers/acpi/processor_idle.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 5f0071c7e2e1..abb559cd28d7 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -292,6 +292,9 @@ 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; -- 2.14.1
| |