From: Jasper St. Pierre Date: Wed, 2 Dec 2020 06:39:42 +0000 (+0800) Subject: ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807 X-Git-Tag: v5.15~2203^2~4 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=25417185e9b5ff90746d50769d2a3fcd1629e254;p=platform%2Fkernel%2Flinux-starfive.git ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807 The GIGABYTE GB-BXBT-2807 is a mini-PC which uses off the shelf components, like an Intel GPU which is meant for mobile systems. As such, it, by default, has a backlight controller exposed. Unfortunately, the backlight controller only confuses userspace, which sees the existence of a backlight device node and has the unrealistic belief that there is actually a backlight there! Add a DMI quirk to force the backlight off on this system. Signed-off-by: Jasper St. Pierre Reviewed-by: Chris Chiu Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 4f5463b..811d298 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -140,6 +140,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = { }, { .callback = video_detect_force_vendor, + .ident = "GIGABYTE GB-BXBT-2807", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), + DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"), + }, + }, + { .ident = "Sony VPCEH3U1E", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),