ACPI / video: Add a quirk to force native backlight on Lenovo IdeaPad S405

The Lenovo IdeaPad S405 is a not "Windows8 ready" machine which still has
a broken ACPI video backlight implementation. Add a quirk to force use
of native backlight on this machine.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1201530
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 2922f1f252d5..0d3a384b508a 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -244,6 +244,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 
         /* Non win8 machines which need native backlight nevertheless */
         {
+         /* https://bugzilla.redhat.com/show_bug.cgi?id=1201530 */
+         .callback = video_detect_force_native,
+         .ident = "Lenovo Ideapad S405",
+         .matches = {
+                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                DMI_MATCH(DMI_BOARD_NAME, "Lenovo IdeaPad S405"),
+                },
+        },
+        {
          /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */
          .callback = video_detect_force_native,
          .ident = "Lenovo Ideapad Z570",