From: Zhang Rui <rui.zhang@intel.com>
Date: Mon, 1 Apr 2019 01:24:39 +0000 (+0800)
Subject: ACPI: video: Use vendor backlight on Sony VPCEH3U1E
X-Git-Tag: v5.2-rc1~183^2~1^3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aefa763b18a220f5fc1d5ab02af09158b6cc36ea;p=thirdparty%2Flinux.git

ACPI: video: Use vendor backlight on Sony VPCEH3U1E

On Sony Vaio VPCEH3U1E, ACPI backlight control does not work, and native
backlight works. Thus force use vendor backlight control on this system.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=202401
Signed-off-by: Zhang Rui <rui.zhang@intel.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 43587ac680e47..0e0a3929e34e2 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -141,6 +141,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
 		},
 	},
+	{
+	.callback = video_detect_force_vendor,
+	.ident = "Sony VPCEH3U1E",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VPCEH3U1E"),
+		},
+	},
 
 	/*
 	 * These models have a working acpi_video backlight control, and using