From 5fd769c2bf115c23670acbc54875717b177c7e0e Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 30 Mar 2020 17:17:37 -0700
Subject: [PATCH] ACPI: video: Docs update for "acpi_backlight" kernel
parameter options
Update the Documentation for "acpi_backlight" by adding 2 new
options (native and none).
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
Documentation/admin-guide/kernel-parameters.txt | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 4e3885e381792..457ca22bfc4ba 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/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
--
2.30.2