X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;ds=sidebyside;f=Documentation%2Fkernel-parameters.txt;h=41e398c568893f2b49555b4cbdb18a1621c26c63;hb=effbc4fd8e37e41d6f2bb6bcc611c14b4fbdcf9b;hp=c1601e5a8b71e81ae57f7d1d5a70be5449501443;hpb=1338631433d8de7cf85b7e8fcf1a389ad89e7a8f;p=karo-tx-linux.git

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index c1601e5a8b71..41e398c56889 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -982,6 +982,20 @@ 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
+			brightness value of 0 indicates backlight switched off,
+			and the maximum of the brightness value sets the backlight
+			to maximum brightness. If this parameter is set to 0
+			(default) and the machine requires it, or this parameter
+			is set to 1, a brightness value of 0 sets the backlight
+			to maximum brightness, and the maximum of the brightness
+			value switches the backlight off.
+			-1 -- never invert brightness
+			 0 -- machine default
+			 1 -- force brightness inversion
+
 	icn=		[HW,ISDN]
 			Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]