qiurui
/
linux-kernelorg-stable
mirror of https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ACPI: bus: Indicate support for _TFP thru _OSC 

The ACPI thermal driver already uses the _TPF ACPI method to retrieve
precise sampling time values, but this is not reported thru _OSC.

Fix this by setting bit 9 ("Fast Thermal Sampling support") when
evaluating _OSC.

Fixes: a2ee7581af ("ACPI: thermal: Add Thermal fast Sampling Period (_TFP) support")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Armin Wolf 2024-03-09 21:13:06 +01:00 committed by Rafael J. Wysocki
parent 4cece76496
commit 95d43290f1
2 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/acpi/bus.c
View File

@ -316,6 +316,8 @@ static void acpi_bus_osc_negotiate_platform_control(void)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT;
if (IS_ENABLED(CONFIG_ACPI_PROCESSOR))
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT;
if (IS_ENABLED(CONFIG_ACPI_THERMAL))
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT;
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT;

1
include/linux/acpi.h
View File

@ -573,6 +573,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
#define OSC_SB_CPCV2_SUPPORT 0x00000040
#define OSC_SB_PCLPI_SUPPORT 0x00000080
#define OSC_SB_OSLPI_SUPPORT 0x00000100
#define OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT 0x00000200
#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
#define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000