drm/i915: panel: invert brightness via parameter

[pandora-kernel.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index ddbf18e..d44116b 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -948,6 +948,15 @@ 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>]]]