linux-kernel - [PATCH 4.4 242/342] ACPI / video: Add disable_backlight_sysfs

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Message-Id: <20160301234535.739365711@linuxfoundation.org>
Date:	Tue, 01 Mar 2016 23:55:04 +0000
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	<linux-kernel@...r.kernel.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<stable@...r.kernel.org>, To Do <entodoays@...il.com>,
	Hans de Goede <hdegoede@...hat.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: [PATCH 4.4 242/342] ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830

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

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

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

commit b21f2e81bd3fd8ed260590e72901254bca2193cd upstream.

The Toshiba Satellite R830 needs disable_backlight_sysfs_if=1, just like
the Toshiba Portege R830. Add a quirk for this.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=21012
Tested-by: To Do <entodoays@...il.com>
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/acpi/acpi_video.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -482,6 +482,15 @@ static struct dmi_system_id video_dmi_ta
 		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R830"),
 		},
 	},
+	{
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
+	 .callback = video_disable_backlight_sysfs_if,
+	 .ident = "Toshiba Satellite R830",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE R830"),
+		},
+	},
 	/*
 	 * Some machine's _DOD IDs don't have bit 31(Device ID Scheme) set
 	 * but the IDs actually follow the Device ID Scheme.