This is a note to let you know that I've just added the patch titled
platform/x86: acer-wmi: Add ACER_CAP_SET_FUNCTION_MODE capability flag
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
platform-x86-acer-wmi-add-acer_cap_set_function_mode.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8870cc6b2af06afe95d9f0a85140e79fcd09508f
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Mon Oct 19 20:56:27 2020 +0200
platform/x86: acer-wmi: Add ACER_CAP_SET_FUNCTION_MODE capability flag
[ 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@xxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201019185628.264473-5-hdegoede@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 74021163ca23..8662468491a3 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -211,6 +211,7 @@ 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
@@ -2202,10 +2203,14 @@ 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");
