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    Subject[V5 PATCH 4/4] drivers-gpu-drm-i915-panel-invert-brightness-acer-aspire-5734z.patch
    Mark the Acer Aspire 5734Z that this machines requires the module to
    invert the panel backlight brightness value after reading from and prior
    to writing to the PCI configuration space.

    Signed-off-by: Carsten Emde <C.Emde@osadl.org>

    ---
    drivers/gpu/drm/i915/intel_display.c | 6 +++++-
    1 file changed, 5 insertions(+), 1 deletion(-)

    Index: linux-3.3-rc7/drivers/gpu/drm/i915/intel_display.c
    ===================================================================
    --- linux-3.3-rc7.orig/drivers/gpu/drm/i915/intel_display.c
    +++ linux-3.3-rc7/drivers/gpu/drm/i915/intel_display.c
    @@ -8951,7 +8951,8 @@ static void quirk_ssc_force_disable(stru
    }

    /*
    - * A machine may need to invert the panel backlight brightness value
    + * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
    + * brightness value
    */
    static void quirk_invert_brightness(struct drm_device *dev)
    {
    @@ -8993,6 +8994,9 @@ struct intel_quirk intel_quirks[] = {

    /* Sony Vaio Y cannot use SSC on LVDS */
    { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
    +
    + /* Acer Aspire 5734Z must invert backlight brightness */
    + { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
    };

    static void intel_init_quirks(struct drm_device *dev)


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