From: Greg Kroah-Hartman gregkh@linuxfoundation.org
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 82cb8a5c395ea5be20e0fe31a8fe84380a502ca5 ]
Not all devices supporting WMID_GUID3 support the wmid3_set_function_mode() call, leading to errors like these:
[ 60.138358] acer_wmi: Enabling RF Button failed: 0x1 - 0xff [ 60.140036] acer_wmi: Enabling Launch Manager failed: 0x1 - 0xff
Add an ACER_CAP_SET_FUNCTION_MODE capability flag, so that these calls can be disabled through the new force_caps mechanism.
Reviewed-by: Andy Shevchenko andy.shevchenko@gmail.com Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://lore.kernel.org/r/20201019185628.264473-5-hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/acer-wmi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 2e77ac458bab..657fd8c49597 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -224,6 +224,7 @@ struct hotkey_function_type_aa { #define ACER_CAP_BLUETOOTH BIT(2) #define ACER_CAP_BRIGHTNESS BIT(3) #define ACER_CAP_THREEG BIT(4) +#define ACER_CAP_SET_FUNCTION_MODE BIT(5)
/* * Interface type flags @@ -2261,10 +2262,14 @@ static int __init acer_wmi_init(void) if (acpi_video_get_backlight_type() != acpi_backlight_vendor) interface->capability &= ~ACER_CAP_BRIGHTNESS;
+ if (wmi_has_guid(WMID_GUID3)) + interface->capability |= ACER_CAP_SET_FUNCTION_MODE; + if (force_caps != -1) interface->capability = force_caps;
- if (wmi_has_guid(WMID_GUID3)) { + if (wmi_has_guid(WMID_GUID3) && + (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) { if (ACPI_FAILURE(acer_wmi_enable_rf_button())) pr_warn("Cannot enable RF Button Driver\n");