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authorArmin Wolf <W_Armin@gmx.de>2024-03-09 21:13:08 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2024-03-27 16:39:35 +0100
commita8a967a243d71dd635ede076020f665a4df51c63 (patch)
tree2fa9b805122b24f7c65d0dcb0a8d2dbb476899c5
parent6e8345f23ca37d6d41bb76be5d6a705ddf542817 (diff)
ACPI: bus: Indicate support for the Generic Event Device thru _OSC
A device driver for the Generic Event Device (ACPI0013) already exists for quite some time, but support for it was never reported thru _OSC. Fix this by setting bit 11 ("Generic Event Device support") when evaluating _OSC. Fixes: 3db80c230da1 ("ACPI: implement Generic Event Device") Signed-off-by: Armin Wolf <W_Armin@gmx.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/acpi/bus.c1
-rw-r--r--include/linux/acpi.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index d5b0e80dc48e..0c48b603098a 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -322,6 +322,7 @@ static void acpi_bus_osc_negotiate_platform_control(void)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT;
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_OVER_16_PSTATES_SUPPORT;
+ capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_GED_SUPPORT;
if (IS_ENABLED(CONFIG_ACPI_PRMT))
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PRM_SUPPORT;
if (IS_ENABLED(CONFIG_ACPI_FFH))
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 0e0b027e27e2..b0d909d1f5fc 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -575,6 +575,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
#define OSC_SB_OSLPI_SUPPORT 0x00000100
#define OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT 0x00000200
#define OSC_SB_OVER_16_PSTATES_SUPPORT 0x00000400
+#define OSC_SB_GED_SUPPORT 0x00000800
#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
#define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000