• Daniel Vetter's avatar
    drm/i915: resurrect panel lid handling · a726915c
    Daniel Vetter authored
    But disabled by default. This essentially reverts
    
    commit bcd5023c
    Author: Dave Airlie <airlied@redhat.com>
    Date:   Mon Mar 14 14:17:55 2011 +1000
    
        drm/i915: disable opregion lid detection for now
    
    but leaves the autodetect mode disabled. There's also the explicit lid
    status option added in
    
    commit fca87409
    Author: Chris Wilson <chris@chris-wilson.co.uk>
    Date:   Thu Feb 17 13:44:48 2011 +0000
    
        drm/i915: Add a module parameter to ignore lid status
    
    Which overloaded the meaning for the panel_ignore_lid parameter even
    more. To fix up this mess, give the non-negative numbers 0,1 the
    original meaning back and use negative numbers to force a given state.
    So now we have
    
    1  - disable autodetect, return unknown
    0  - enable autodetect
    -1 - force to disconnected/lid closed
    -2 - force to connected/lid open
    
    v2: My C programmer license has been revoked ...
    
    v3: Beautify the code a bit, as suggested by Chris Wilson.
    
    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=27622Tested-by: default avatarAndreas Sturmlechner <andreas.sturmlechner@gmail.com>
    Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
    Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
    a726915c
intel_panel.c 12.9 KB