--- /dev/null
+From 524f42fab787a9510be826ce3d736b56d454ac6d Mon Sep 17 00:00:00 2001
+From: Lan Tianyu <tianyu.lan@intel.com>
+Date: Mon, 26 Aug 2013 10:19:18 +0800
+Subject: ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT
+
+From: Lan Tianyu <tianyu.lan@intel.com>
+
+commit 524f42fab787a9510be826ce3d736b56d454ac6d upstream.
+
+The ECDT of ASUSTEK L4R doesn't provide correct command and data
+I/O ports. The DSDT provides the correct information instead.
+
+For this reason, add this machine to quirk list for ECDT validation
+and use the EC information from the DSDT.
+
+[rjw: Changelog]
+References: https://bugzilla.kernel.org/show_bug.cgi?id=60765
+Reported-and-tested-by: Daniele Esposti <expo@expobrain.net>
+Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/acpi/ec.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/acpi/ec.c
++++ b/drivers/acpi/ec.c
+@@ -978,6 +978,10 @@ static struct dmi_system_id __initdata e
+ ec_skip_dsdt_scan, "HP Folio 13", {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13"),}, NULL},
++ {
++ ec_validate_ecdt, "ASUS hardware", {
++ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek Computer Inc."),
++ DMI_MATCH(DMI_PRODUCT_NAME, "L4R"),}, NULL},
+ {},
+ };
+