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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Alex Hung <alex.hung@canonical.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        Sasha Levin <alexander.levin@verizon.com>,
        Sumit Semwal <sumit.semwal@linaro.org>
Subject: [PATCH 4.4 72/76] ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520
Date: Tue, 28 Mar 2017 14:31:09 +0200
Message-Id: <20170328122602.885344378@linuxfoundation.org>
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4.4-stable review patch.  If anyone has any objections, please let me know.

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

From: Sumit Semwal <sumit.semwal@linaro.org>


From: Alex Hung <alex.hung@canonical.com>

[ Upstream commit 9523b9bf6dceef6b0215e90b2348cd646597f796 ]

Precision 5520 and 3520 either hang at login and during suspend or reboot.

It turns out that that adding them to acpi_rev_dmi_table[] helps to work
around those issues.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/blacklist.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -346,6 +346,22 @@ static struct dmi_system_id acpi_osi_dmi
 		      DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
 		},
 	},
+	{
+	 .callback = dmi_enable_rev_override,
+	 .ident = "DELL Precision 5520",
+	 .matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "Precision 5520"),
+		},
+	},
+	{
+	 .callback = dmi_enable_rev_override,
+	 .ident = "DELL Precision 3520",
+	 .matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3520"),
+		},
+	},
 #endif
 	{}
 };