This is a note to let you know that I've just added the patch titled
ACPI: video: Add force_vendor quirk for Panasonic Toughbook CF-18
to the 6.1-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:
acpi-video-add-force_vendor-quirk-for-panasonic-toug.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a9a8da2a717076146a052ffa962f3bf8c19afd7e
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Sat Sep 7 14:44:19 2024 +0200
ACPI: video: Add force_vendor quirk for Panasonic Toughbook CF-18
[ Upstream commit eb7b0f12e13ba99e64e3a690c2166895ed63b437 ]
The Panasonic Toughbook CF-18 advertises both native and vendor backlight
control interfaces. But only the vendor one actually works.
acpi_video_get_backlight_type() will pick the non working native backlight
by default, add a quirk to select the working vendor backlight instead.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://patch.msgid.link/20240907124419.21195-1-hdegoede@xxxxxxxxxx
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 60b0128a10e86..f7a2ab62c6c20 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -258,6 +258,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "PCG-FRV35"),
},
},
+ {
+ .callback = video_detect_force_vendor,
+ /* Panasonic Toughbook CF-18 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Matsushita Electric Industrial"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
+ },
+ },
/*
* Toshiba models with Transflective display, these need to use
