drm/i915: panel: invert brightness via quirk

[pandora-kernel.git] / drivers / gpu / drm / i915 / intel_display.c

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 17961df..b096c0e 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8831,6 +8831,15 @@ static void quirk_ssc_force_disable(struct drm_device *dev)
        dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
 }
 
+/*
+ * A machine may need to invert the panel backlight brightness value
+ */
+static void quirk_invert_brightness(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
+}
+
 struct intel_quirk {
        int device;
        int subsystem_vendor;