diff options
| author | Armin Wolf <W_Armin@gmx.de> | 2024-06-20 21:14:10 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-07-01 19:26:04 +0200 |
| commit | face1c543e89ebc657f7948b0541a76954cf9382 (patch) | |
| tree | 5fa33384a2fae5283f2fd6e2eaac186e3f507897 | |
| parent | 526294e1eb8e43bce5088806abeedeea31018641 (diff) | |
ACPI: bus: Indicate support for battery charge limiting thru _OSC
The ACPI battery driver can handle the "charge limiting" state
of the battery, so the platform can advertise this state.
Indicate this by setting bit 19 ("Battery Charge Limiting Support")
when evaluating _OSC.
Tested on a Lenovo Ideapad S145-14IWL.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20240620191410.3646-2-W_Armin@gmx.de
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/acpi/bus.c | 2 | ||||
| -rw-r--r-- | include/linux/acpi.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 787eca838410..bdbd60ae8897 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -329,6 +329,8 @@ static void acpi_bus_osc_negotiate_platform_control(void) 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; + if (IS_ENABLED(CONFIG_ACPI_BATTERY)) + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_BATTERY_CHARGE_LIMITING_SUPPORT; capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 28c3fb2bef0d..b87ef8f3caa0 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -576,6 +576,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00020000 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 +#define OSC_SB_BATTERY_CHARGE_LIMITING_SUPPORT 0x00080000 #define OSC_SB_PRM_SUPPORT 0x00200000 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000 |