misc,acpi,backlight: compal Laptop Extras

This is driver for Compal Laptop: FL90/IFL90, based on MSI driver.

This driver exports a few files in /sys/devices/platform/compal-laptop/:
 lcd_level - screen brightness: contains a single integer in the range 0..7 (rw)
 wlan - wlan subsystem state: contains 0 or 1 (rw)
 bluetooth - bluetooth subsystem state: contains 0 or 1 (rw)
 raw - raw value taken from embedded controller register (ro)

In addition to these platform device attributes the driver registers itself
in the Linux backlight control subsystem and is available to userspace under
/sys/class/backlight/compal-laptop/.

Signed-off-by: Cezary Jackiewicz <cezary.jackiewicz@gmail.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Len Brown <lenb@kernel.org>
Cc: Alexey Starikovskiy <aystarik@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index ee1c56a20750..2bfde0326300 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1160,6 +1160,11 @@ M:	scott@spiteful.org
 L:      pcihpd-discuss@lists.sourceforge.net
 S:      Supported
 
+COMPAL LAPTOP SUPPORT
+P:      Cezary Jackiewicz
+M:      cezary.jackiewicz@gmail.com
+S:      Maintained
+
 COMPUTONE INTELLIPORT MULTIPORT CARD
 P:      Michael H. Warfield
 M:      mhw@wittsend.com