[coreboot-gerrit] Patch merged into coreboot/master: gma ACPI: Do not overwrite backlight configuration

[gerrit at coreboot.org]

the following patch was just integrated into master:
commit deeec18520f4c8ccdd53abbbdb07a13b7f3124bf
Author: Nico Huber <nico.huber at secunet.com>
Date:   Thu Aug 27 13:31:46 2015 +0200

    gma ACPI: Do not overwrite backlight configuration
    
    Changes to CR1 and CR2 were effectively overwriting the backlight
    configuration from the devicetree with static values.
    
    Instead read the maximum brightness value from BCLM (backlight
    modulation frequency) and calculate the target level (Arg0 is the
    target level as percentage).
    
    Turned out that _BQC has to return a value from the list returned by
    _BCL. So XBQC got a little heavier to search for the correct value.
    
    Change-Id: I35419993c8250c95fc69ba4db30db9dba9e6f8ff
    Signed-off-by: Nico Huber <nico.huber at secunet.com>
    Reviewed-on: http://review.coreboot.org/11704
    Tested-by: build bot (Jenkins)
    Reviewed-by: Alexandru Gagniuc <mr.nuke.me at gmail.com>
    Reviewed-by: Paul Menzel <paulepanter at users.sourceforge.net>
    Reviewed-by: Vladimir Serbinenko <phcoder at gmail.com>


See http://review.coreboot.org/11704 for details.

-gerrit