drm/i915: Dell Chromebook 11 has PWM backlight

Add quirk for Dell Chromebook 11 backlight.

Reported-and-tested-by: Owen Garland <garland.owen@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=93451
Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f392e18..2adedee 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13105,6 +13105,9 @@ static struct intel_quirk intel_quirks[] = {
 
        /* HP Chromebook 14 (Celeron 2955U) */
        { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
+
+       /* Dell Chromebook 11 */
+       { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
 };
 
 static void intel_init_quirks(struct drm_device *dev)