From d4967d8c6d4f52623f2be8eaff0b445dc5863c92 Mon Sep 17 00:00:00 2001 From: Scot Doyle Date: Thu, 3 Jul 2014 23:27:52 +0000 Subject: [PATCH] drm/i915: Toshiba CB35 has a controllable backlight The Toshiba CB35 Chromebook (with Celeron 2955U CPU) has a controllable backlight although its VBT reports otherwise. Apply quirk to ignore the backlight presence check during backlight setup. Patch tested by author on Toshiba CB35. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813 Signed-off-by: Scot Doyle CC: Jani Nikula Signed-off-by: Jani Nikula Cc: stable@vger.kernel.org # 3.15 only [danvet: Add cc: stable because the regressing commit is in 3.15.] Signed-off-by: Daniel Vetter --- 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 2ee81656f80a..e27e7804c0b9 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -11670,6 +11670,9 @@ static struct intel_quirk intel_quirks[] = { /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, + + /* Toshiba CB35 Chromebook (Celeron 2955U) */ + { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, }; static void intel_init_quirks(struct drm_device *dev) -- 2.20.1