ACPI: video: Add backlight=native DMI quirk for Apple iMac12,1 and iMac12,2

Linux defaults to picking the non-working ACPI video backlight interface
on the Apple iMac12,1 and iMac12,2.

Add a DMI quirk to pick the working native radeon_bl0 interface instead.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1838
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2753
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: jwrdegoede

drivers/acpi/video_detect.c

@@ -495,6 +495,24 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "iMac11,3"),
 		},
 	},
+	{
+	 /* https://gitlab.freedesktop.org/drm/amd/-/issues/1838 */
+	 .callback = video_detect_force_native,
+	 /* Apple iMac12,1 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "iMac12,1"),
+		},
+	},
+	{
+	 /* https://gitlab.freedesktop.org/drm/amd/-/issues/2753 */
+	 .callback = video_detect_force_native,
+	 /* Apple iMac12,2 */
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "iMac12,2"),
+		},
+	},
 	{
 	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */
 	 .callback = video_detect_force_native,