This is a note to let you know that I've just added the patch titled
ACPI: video: Add force_vendor quirk for Sony Vaio PCG-FRV35
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-sony-vaio-pcg-.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 e91bce58a6853579abd62d7c1af41897646a261d
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Mon Nov 14 15:44:56 2022 +0100
ACPI: video: Add force_vendor quirk for Sony Vaio PCG-FRV35
[ Upstream commit 23735543eb228c604e59f99f2f5d13aa507e5db2 ]
The Sony Vaio PCG-FRV35 advertises both native and vendor backlight
control interfaces. With the upcoming changes to prefer native over
vendor acpi_video_get_backlight_type() will start returning native on
these laptops.
But the native radeon_bl0 interface does not work, where as the sony
vendor interface does work. Add a quirk to force use of the vendor
interface.
Signed-off-by: Hans de Goede <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 0ab98f2e484c..8e8b435b4c8c 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -237,6 +237,19 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
},
+ /*
+ * Models which should use the vendor backlight interface,
+ * because of broken native backlight control.
+ */
+ {
+ .callback = video_detect_force_vendor,
+ /* Sony Vaio PCG-FRV35 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "PCG-FRV35"),
+ },
+ },
+
/*
* Toshiba models with Transflective display, these need to use
* the toshiba_acpi vendor driver for proper Transflective handling.
