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    Subject[PATCH 3.16.y-ckt 148/170] drm/i915: Ignore VBT backlight check on Macbook 2, 1
    Date
    3.16.7-ckt1 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: jens stein <jens.s.stein@gmail.com>

    commit b2a9601c587dbc5536546aa54009d1130adedd72 upstream.

    commit c675949ec58ca50d5a3ae3c757892f1560f6e896
    Author: Jani Nikula <jani.nikula@intel.com>
    Date: Wed Apr 9 11:31:37 2014 +0300

    drm/i915: do not setup backlight if not available according to VBT

    prevents backlight setup on Macbook 2,1. Apply quirk to ignore the VBT
    check so backlight is set up properly.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81438
    Signed-off-by: Jens Stein Jørgensen <jens.s.stein@gmail.com>
    Signed-off-by: Jani Nikula <jani.nikula@intel.com>
    Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
    ---
    drivers/gpu/drm/i915/intel_display.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
    index ffaf8be939f1..373d652d01fa 100644
    --- a/drivers/gpu/drm/i915/intel_display.c
    +++ b/drivers/gpu/drm/i915/intel_display.c
    @@ -11693,6 +11693,9 @@ static struct intel_quirk intel_quirks[] = {
    /* Acer C720 Chromebook (Core i3 4005U) */
    { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },

    + /* Apple Macbook 2,1 (Core 2 T7400) */
    + { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },
    +
    /* Toshiba CB35 Chromebook (Celeron 2955U) */
    { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },

    --
    2.1.0
    --
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