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From 308164db606d6055f0954814867e57dc795023aa Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 2 Jun 2014 17:41:11 +0200
Subject: [PATCH] acpi-video: Add use_native_backlight quirk for HP ProBook
 4540s

As reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=1025690
This is yet another model which needs this quirk.

Bugzilla: 1025690
Upstream-status: Waiting for feedback from reporter

Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/acpi/video.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index eb82264d9ef9..34da76ffc59a 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -687,6 +687,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 	},
 	{
 	.callback = video_set_use_native_backlight,
+	.ident = "HP ProBook 4540s",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_VERSION, "HP ProBook 4540s"),
+		},
+	},
+	{
+	.callback = video_set_use_native_backlight,
 	.ident = "HP ProBook 2013 models",
 	.matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
-- 
1.9.3