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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@redhat.com>
Link: https://patch.msgid.link/20240907124419.21195-1-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans de Goede 2024-09-07 14:44:19 +02:00 committed by Greg Kroah-Hartman
parent cc026a7f9b
commit 716dae9686
1 changed files with 8 additions and 0 deletions
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8
drivers/acpi/video_detect.c
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@ -260,6 +260,14 @@ 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