ACPI / video: Add Acer TravelMate B113 to native backlight blacklist

Fix backlight control for Acer TravelMate B113 Laptop by adding
it to the video_dmi_table.

A workaround before that was to use acpi_osi=Linux or
acpi_backlight=vendor on boot but even then, only the function-
keys worked.

With this change there is no need for boot parameters and DE's
controls work as well.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 5bb1278e93243a16421fd21e158a6025e8f145e7..071c1dfb93f3b5a7480133f0bdead2e9009ccb4f 100644 (file)
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -563,6 +563,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
                DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-471G"),
                },
        },
+       {
+        .callback = video_set_use_native_backlight,
+        .ident = "Acer TravelMate B113",
+        .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+               DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate B113"),
+               },
+       },
        {
        .callback = video_set_use_native_backlight,
        .ident = "HP ProBook 4340s",