From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Update the Documentation for "acpi_backlight" by adding
2 new options (native and none).
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: linux-acpi@xxxxxxxxxxxxxxx
Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
---
Documentation/admin-guide/kernel-parameters.txt | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- linux-next-20200330.orig/Documentation/admin-guide/kernel-parameters.txt
+++ linux-next-20200330/Documentation/admin-guide/kernel-parameters.txt
@@ -22,11 +22,13 @@
default: 0
acpi_backlight= [HW,ACPI]
- acpi_backlight=vendor
- acpi_backlight=video
- If set to vendor, prefer vendor specific driver
+ { vendor | video | native | none }
+ If set to vendor, prefer vendor-specific driver
(e.g. thinkpad_acpi, sony_acpi, etc.) instead
of the ACPI video.ko driver.
+ If set to video, use the ACPI video.ko driver.
+ If set to native, use the device's native backlight mode.
+ If set to none, disable the ACPI backlight interface.
acpi_force_32bit_fadt_addr
force FADT to use 32 bit addresses rather than the
