ACPI: video: Use native backlight on Dell Inspiron N4010

The Dell Inspiron N4010 does not have ACPI backlight control,
so acpi_video_get_backlight_type()'s heuristics return vendor as
the type to use.

But the vendor interface is broken, where as the native (intel_backlight)
works well, add a quirk to use native.

Link: https://lore.kernel.org/regressions/CALF=6jEe5G8+r1Wo0vvz4GjNQQhdkLT5p8uCHn6ZXhg4nsOWow@mail.gmail.com/
Reported-and-tested-by: Ben Greening <bgreening@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 6615f59ab7fd296af25e4ab290a8c3f1455d28dd..5d7f38016a24311d8669f9c04c4b41670110f568 100644 (file)
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -347,6 +347,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
                DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"),
                },
        },
+       {
+        .callback = video_detect_force_native,
+        /* Dell Inspiron N4010 */
+        .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+               DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron N4010"),
+               },
+       },
        {
         .callback = video_detect_force_native,
         /* Dell Vostro V131 */