[Intel-gfx] [PATCH 2/5] Acer C720 has a controllable backlight

[Scot Doyle]

The Acer C720 laptop has a controllable backlight although its VBT reports 
otherwise.

Tested-by: James Duley <jagduley at gmail.com>
Signed-off-by: Scot Doyle <lkml14 at scotdoyle.com>
CC: Jani Nikula <jani.nikula at intel.com>
---
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c583b07..2855d29 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12366,6 +12366,9 @@ static struct intel_quirk intel_quirks[] = {

  	/* Acer Aspire 5336 */
  	{ 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
+
+	/* Acer C720 Chromebook has a controllable backlight */
+	{ 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
  };

  static void intel_init_quirks(struct drm_device *dev)