linux-kernel - [PATCH 3.16.y-ckt 086/183] ACPI / video: Add disable_native

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Message-Id: <1425635874-19087-87-git-send-email-luis.henriques@canonical.com>
Date:	Fri,  6 Mar 2015 09:56:17 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Hans de Goede <hdegoede@...hat.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 086/183] ACPI / video: Add disable_native_backlight quirk for Samsung 510R

3.16.7-ckt8 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hans de Goede <hdegoede@...hat.com>

commit e77a16355a29230b99bafe55834a8252e55308ec upstream.

Backlight control through the native intel interface does not work properly
on the Samsung 510R, where as using the acpi_video interface does work, add
a quirk for this.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1186097
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/acpi/video.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d4b6a214892b..0f9bf52792b5 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -712,6 +712,15 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		},
 	},
 	{
+	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1186097 */
+	 .callback = video_disable_native_backlight,
+	 .ident = "SAMSUNG 3570R/370R/470R/450R/510R/4450RV",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "3570R/370R/470R/450R/510R/4450RV"),
+		},
+	},
+	{
 	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */
 	 .callback = video_disable_native_backlight,
 	 .ident = "SAMSUNG 730U3E/740U3E",
--
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