1 files changed, 9 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 033d4e69b43b..9f6ba8fab088 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -967,6 +967,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
         i8k.restricted  [HW] Allow controlling fans only if SYS_ADMIN
                         capability is set.
 
+        i915.invert_brightness
+                        [DRM] Invert the sense of the variable that is used to
+                        set the brightness of the panel backlight. Normally a
+                        value of 0 indicates backlight switched off, and the
+                        maximum value sets the backlight to maximum brightness.
+                        If this parameter is specified, a value of 0 sets the
+                        backlight to maximum brightness, and the maximum value
+                        switches the backlight off.
+
         icn=            [HW,ISDN]
                         Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]