[PATCH 4.19 377/421] ACPI: video: Add quirk for the Dell Vostro 3350

Greg Kroah-Hartman
2021-07-19T16:34:02Z

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 9249c32ec9197e8d34fe5179c9e31668a205db04 ]

The Dell Vostro 3350 ACPI video-bus device reports spurious
ACPI_VIDEO_NOTIFY_CYCLE events resulting in spurious KEY_SWITCHVIDEOMODE
events being reported to userspace (and causing trouble there).

Add a quirk setting the report_key_events mask to
REPORT_BRIGHTNESS_KEY_EVENTS so that the ACPI_VIDEO_NOTIFY_CYCLE
events will be ignored, while still reporting brightness up/down
hotkey-presses to userspace normally.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1911763
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/acpi_video.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 1a23e7aa74df..ac54fc03cf81 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -556,6 +556,15 @@ static const struct dmi_system_id video_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"),
},
},
+ {
+ .callback = video_set_report_key_events,
+ .driver_data = (void *)((uintptr_t)REPORT_BRIGHTNESS_KEY_EVENTS),
+ .ident = "Dell Vostro 3350",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3350"),
+ },
+ },
/*
* Some machines change the brightness themselves when a brightness
* hotkey gets pressed, despite us telling them not to. In this case
--
2.30.2