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    Subject[PATCH 3.16.y-ckt 007/126] drm/i915: quirk backlight present on Macbook 4, 1
    Date
    3.16.7-ckt22 -stable review patch.  If anyone has any objections, please let me know.

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

    From: Jani Nikula <jani.nikula@intel.com>

    commit 1b9448b071caa7d10bb2569fabe3020a2c25ae59 upstream.

    Unsurprisingly macbooks have backlights, just the VBT doesn't seem to
    know it in this case.

    Reported-and-tested-by: Daniel Nicoletti <dantti12@gmail.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88325
    Fixes: c675949ec58c ("drm/i915: do not setup backlight if not available according to VBT")
    Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
    Signed-off-by: Jani Nikula <jani.nikula@intel.com>
    Link: http://patchwork.freedesktop.org/patch/msgid/1446716999-1796-1-git-send-email-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 c35353aadd02..b019c563a787 100644
    --- a/drivers/gpu/drm/i915/intel_display.c
    +++ b/drivers/gpu/drm/i915/intel_display.c
    @@ -11703,6 +11703,9 @@ static struct intel_quirk intel_quirks[] = {
    /* Apple Macbook 2,1 (Core 2 T7400) */
    { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },

    + /* Apple Macbook 4,1 */
    + { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },
    +
    /* Toshiba CB35 Chromebook (Celeron 2955U) */
    { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },


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